JP2017011697A - Receiver, reception method, and program - Google Patents

Abstract

A receiving apparatus, a receiving method, and a program are provided that can satisfy viewers and broadcasters when video that cannot be displayed due to resolution is provided. A receiving unit receives a broadcast signal of a program including video, and a display processing unit changes the display state of the display unit when the resolution of the video is an undisplayable resolution in which the display unit cannot display the video. A predetermined display state is controlled, and when the resolution of the image is a displayable resolution at which the image can be displayed by the display unit, the image is displayed on the display unit. [Selection drawing] Fig. 8

Description

  The present invention relates to a receiving device, a receiving method, and a program.

  In recent years, Ultra High Definition Television (UHDTV), which has a higher video resolution than conventional High Definition Television (HDTV), is becoming more popular. In UHDTV, video content mainly including video having a resolution of 4K or 8K is provided. 4K means a resolution of 3840 pixels in the horizontal direction and 2160 pixels in the vertical direction. 8K means a resolution of 7680 pixels in the horizontal direction and 4320 pixels in the vertical direction.

  Some receiving devices (hereinafter referred to as 4K televisions) capable of displaying video content with a resolution of 4K include means for promoting viewing of videos with higher resolution than before. For example, in Patent Document 1, the received signal quality value calculated for received received data satisfies the criteria of a received signal quality value that allows the video data to be decoded with a video quality equal to or higher than a predetermined video quality. A broadcast receiving apparatus that registers a channel through which video data is transmitted as a receivable channel is described. This broadcast receiving apparatus prevents registration of a channel through which video data that can be decoded only with reception quality lower than the display performance is transmitted.

  A display device that displays a high-resolution image has a large number of pixels, and thus the manufacturing and development costs tend to be high. For example, the number of pixels required for displaying an image with a resolution of 8K is four times the number of pixels required for displaying an image with a resolution of 4K. For this reason, there is a possibility that the spread of 4K television may precede the receiving device (hereinafter referred to as 8K television) capable of displaying video content having a resolution of 8K.

  On the other hand, in a broadcast service based on UHDTV, a program (hereinafter referred to as 4K program) that provides video with a resolution of 4K (hereinafter referred to as 4K video) through the same channel, and a video with resolution of 8K (hereinafter referred to as 4K video). , 8K video) (hereinafter referred to as 8K program) is being considered to be provided at different times. Therefore, when the 8K program starts after the 4K program ends, the 4K television cannot display the video related to the 8K program and may display a so-called black screen. Some receiving apparatuses have a function of switching to an operation mode in which power consumption is lower than usual or a function of stopping operation when a valid received signal is not input for a certain period of time.

JP 2011-244308 A

  However, the above-described change in the operation state does not necessarily match the viewer's intention. For example, the viewer may be left without performing an operation on the receiving device in expectation of restart of a program that can be viewed. Further, when the receiving device displays a black screen, the viewer may switch the channel to be viewed. This leads to a decrease in the audience rating for the selected channel. A decrease in audience rating is generally an undesirable event for broadcasters who provide programs.

  The present invention has been made on the basis of the above problems, and provides a receiving apparatus, a receiving method, and a program that can satisfy viewers and broadcasters when videos that cannot be displayed depending on resolution are provided. It is aimed.

The present invention has been made to solve the above-described problems. One embodiment of the present invention includes a receiving unit that receives a broadcast signal of a program including video, a resolution of the video, and a display unit that displays the video. When the display resolution is not displayable, the display state of the display unit is controlled to a predetermined display state,
When the resolution of the video is a displayable resolution at which the display unit can display the video, a display processing unit that displays the video on the display unit.

  ADVANTAGE OF THE INVENTION According to this invention, when the image | video which cannot be displayed according to the resolution is provided, the receiver, receiving method, and program which a viewer and a broadcaster can satisfy more can be provided.

1 is a block diagram illustrating a schematic configuration of a broadcasting system according to a first embodiment. It is a figure which shows an example of the data structure of MPT. It is a figure which shows an example of the data structure of a video component descriptor. It is a table | surface which shows the relationship between the value of video signal resolution, and the number of pixels of a perpendicular direction. It is a figure which shows an example of the data structure of MH-EIT. It is a figure which shows an example of the data structure of MH-short format event descriptor. It is a figure which shows an example of the data structure of MH-extended format event descriptor. It is a block diagram which shows schematic structure of the receiver which concerns on 1st Embodiment. It is a figure which shows an example of the electronic program guide which concerns on 1st Embodiment. It is a figure which shows one display example of the image | video whose resolution is displayable resolution. It is a figure which shows the example of a display of a caution image | video. It is a flowchart which shows the reception process which concerns on 1st Embodiment. It is a figure which shows an example of the electronic program guide which concerns on 2nd Embodiment. It is a figure which shows the example of a display of an image | video in case the resolution of the display part which concerns on 2nd Embodiment is 8K. It is a figure which shows the example of a display of an image | video in case the resolution of the display part which concerns on 2nd Embodiment is 4K. It is a flowchart which shows the reception process which concerns on 2nd Embodiment. It is a flowchart which shows the transmission process which concerns on 3rd Embodiment. It is a figure which shows an example of the data structure of a hyperlink descriptor. It is a block diagram which shows schematic structure of the receiver which concerns on 3rd Embodiment. It is a figure which shows an example of the electronic program guide which concerns on 3rd Embodiment. It is a figure which shows the example of a display of the image | video in case the resolution of the display part which concerns on 3rd Embodiment is 4K or 8K. It is a figure which shows the other example of the electronic program guide which concerns on 3rd Embodiment. It is a figure which shows the further another example of the electronic program guide which concerns on 3rd Embodiment. It is a flowchart which shows the reception process which concerns on 3rd Embodiment. It is a figure which shows an example of the external appearance of the display part which concerns on 4th Embodiment. It is a table | surface which shows an example of the correspondence of the operation state of the receiver which concerns on 4th Embodiment, and the lighting state of the light emission part. It is a flowchart which shows the reception process which concerns on 4th Embodiment. It is a figure which shows an example of the reception reservation display information which concerns on 5th Embodiment. It is a flowchart which shows the reception process which concerns on 5th Embodiment.

(First embodiment)
A first embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is a block diagram showing a schematic configuration of a broadcasting system 1 according to the present embodiment.
The broadcast system 1 includes a receiving device 10 and a transmitting device 20. In the broadcasting system 1, the number of receiving devices 10 and transmitting devices 20 is generally plural. In the following description, for ease of explanation, a case will be described in which the number of receiving apparatuses 10 and transmitting apparatuses 20 is one. In the following description, a case where an MMT (MPEG Media Transport) system is adopted as a media transport system for digital broadcasting in the broadcasting system 1 is mainly taken as an example.

  The transmission device 20 transmits a signal indicating multiplexed data obtained by multiplexing program data i1 and control data by radio waves. The control data is data including program arrangement information i2 and program configuration information i3. The transmission device 20 is, for example, a transmission device that a broadcaster such as a broadcasting station has. The program data i1 is content data including at least video data indicating videos constituting the program. In the following description, it is assumed that the program data i1 is content data including both video data and audio data. Note that each of the video data and the audio data is data encoded by a predetermined encoding method. For example, the video data is H.264. H.265, data encoded by an encoding method such as HEVC (High Efficiency Video Coding). Further, for example, the audio data is data encoded by an encoding method such as ISO / IEC 14496 Part 3, so-called MPEG-4 audio.

  The program arrangement information i2 includes information related to a program broadcast on each channel at that time (current) and a program scheduled to be broadcast on each channel between that time and a predetermined time later. Therefore, the program arrangement information i2 includes information related to the program related to the program data i1, that is, the program broadcast at that time. The program arrangement information i2 includes, for example, program identification information and broadcast date / time information as broadcast information included for each program. Here, the program identification information is information for identifying a program such as the type and arrangement of a broadcast program and its attributes, for example. The broadcast date / time information is information indicating the broadcast date / time of the program. In addition, the program arrangement information i2 includes various information used when generating the electronic program guide. As the program arrangement information i2, for example, an MH-EIT (Event Information Table) constituting an MMT-SI (MMT-System Information) is included. An example of MH-EIT will be described later.

  The program configuration information i3 includes a list of assets that are components of a program related to the program data i1, that is, a broadcast program, and requirement information indicating various requirements thereof. An asset is element data that is a component of a program. The requirement information includes, for example, information indicating the resolution of video data included in the program data i1. As the program configuration information i3, for example, an MPT (MMT Package Table; MP table) that configures the MMT-SI is included. An example of MPT will be described later.

  The transmission device 20 encrypts multiplexed data obtained by multiplexing the program data i1 and the control data using a predetermined encryption method (for example, AES: Advanced Encryption Standard). Then, the transmission device 20 performs error correction coding on the encrypted multiplexed data, and adds the generated error correction code to the multiplexed data. The transmission device 20 adds, for example, a BCH (Baud Chaudhuri Hocquenhem) code and an LDPC (Low Density Parity Check) code as error correction codes. The transmission apparatus 20 uses a predetermined modulation scheme (for example, 8PSK: 8 Phase Shift Keying, APSK: Amplitude and Phase Shift Keying) for multiplexed data to which an error correction code is added. And modulate. The transmission device 20 transmits the broadcast signal generated by the modulation to the reception device 10 via the broadcast transmission path BT. The broadcast transmission path BT is a transmission path that can simultaneously transmit broadcast signals to one or a plurality of receiving apparatuses 10 as unspecified destinations. In the example shown in FIG. 1, the broadcast transmission path BT is a transmission path for transmitting a broadcast signal by radio waves. In this example, the transmission apparatus 20 up-converts a baseband broadcast signal generated by modulation into a signal in a frequency band of a predetermined channel. The transmission device 20 transmits a broadcast signal generated by up-conversion as a radio wave to the broadcast transmission path BT. The broadcast transmission path BT may be configured to include a wireless or wired communication network in part or all thereof.

The series of processes from the multiplexed data to the conversion to the broadcast signal and the inverse process thereof, that is, the processes from the broadcast signal to the conversion to the multiplexed data in the receiving apparatus 10 are described in detail in the following document. Has been.
"Transmission standard for advanced broadband satellite digital broadcasting", Japan Radio Industry Association, July 2014, ARIB STD-B44, 2.0

  The receiving device 10 receives a broadcast signal transmitted from the transmitting device 20 via the broadcast transmission path BT. The receiving device 10 extracts program data i1 and element data from the broadcast signal. The receiving device 10 analyzes the program configuration information i3 included in the extracted element data and determines the resolution of the video data included in the program data i1. The receiving device 10 determines whether or not the determined resolution is a resolution that can be displayed by the display unit 14 (FIG. 9). When determining that the resolution is displayable, the receiving apparatus 10 causes the display unit 14 to display a video based on the video data. When determining that the resolution is not displayable, the receiving apparatus 10 causes the display unit 14 to display a predetermined video.

  Further, the receiving device 10 determines the broadcast time of the program for each channel indicated by the program configuration information i3 included in the extracted element data. The receiving device 10 generates an electronic program guide by arranging program information of each program for each channel based on the broadcast time based on the broadcast time determined for each program. In the electronic program guide, the display mode of the program information of each program may differ depending on whether or not the resolution of the video of the program is a displayable resolution at which the video based on the video data can be displayed on the display unit 14. Good. The receiving device 10 displays the generated electronic program guide on the display unit 14. The configuration of the receiving device 10 will be described later.

(MPT)
Next, the data structure of the MPT according to this embodiment will be described. FIG. 2 is a diagram illustrating an example of a data structure of MPT. The MPT is a table showing the configuration of a program such as parameters indicating attributes and specifications for each asset that is a component of each broadcast program. Specifically, the MPT includes an asset type (asset_type), location information (MMT_general_location_info), and an asset descriptor area (asset_descriptors_byte) for each asset. The asset type (asset_type) is information indicating the type of asset. For example, an asset in which “hvc1” is described as the asset type indicates video, and an asset in which “mp4a” is described as the asset type indicates audio.
The location information is information indicating the transmission path of the corresponding asset. The asset descriptor area is an area for storing a descriptor that describes information about the asset. Examples of the descriptor described in the asset descriptor area include a video component descriptor (Video_Component_Descriptor).

(Video component descriptor)
Next, the data structure of the video component descriptor according to the present embodiment will be described. FIG. 3 is a diagram illustrating an example of the data structure of the video component descriptor. The video component descriptor is a descriptor indicating parameters and explanation regarding the video component. In the video component descriptor, video signal resolution (video_resolution) is described. As the video signal resolution (video_resolution), a value indicating the number of pixels in the vertical direction in one frame is described.

FIG. 4 is a table showing the relationship between the video signal resolution value and the number of pixels in the vertical direction.
The left column and the right column in FIG. 4 indicate values described in the video signal resolution (video_resolution) and the number of pixels in the vertical direction that the values mean. The larger the video signal resolution value, the higher the resolution. For example, the value described as “6” indicates that the number of pixels in the vertical direction is 2160, that is, the video resolution is 4K (3840 × 2160). The value described as “7” indicates that the number of pixels in the vertical direction is 4320, that is, the video resolution is 8K (7680 × 4320).

(MH-EIT)
Next, the data structure of the MH-EIT according to the present embodiment will be described. FIG. 5 is a diagram illustrating an example of the data structure of the MH-EIT. The MH-EIT is a table indicating various information related to programs such as the name of each program, broadcast date and time, and description of broadcast contents. Specifically, the MH-EIT includes an event identification (event_id), a start time (start_time), and a duration (duration). The event identification (event_id) indicates, for example, an event identification number such as program identification information. The start time (start_time) indicates an event, that is, the start time (date and time) of the program. The duration (duration) indicates the duration of the event, that is, the broadcast time (length) of the program.

  The MH-EIT has a descriptor area (descriptor ()) for each event identification (event_id). The descriptor area (descriptor ()) is an area for storing a descriptor. In the present embodiment, the descriptor area (descriptor ()) includes an MH-short format event descriptor (MH_Short_Event_Descriptor ()), an MH-extended format event descriptor (MH_Extended_Event_Descriptor ()), and a video component descriptor. In the MH-short format event descriptor and the MH-extended format event descriptor, information such as a program name and a program description is described. In the video component identifier, information such as the resolution of the video data constituting the program is described as described above.

(MH-short format event descriptor)
Next, the data structure of the MH-short format event descriptor will be described. FIG. 6 is a diagram illustrating an example of the data structure of the MH-short format event descriptor. The MH-short format event descriptor includes a program name (event_name_char) and a program description (text_char). In the program name, the name of the program is described. In the program description, a description of the program is described.

(MH-Extended format event descriptor data structure)
Next, the data structure of the MH-extended event descriptor will be described. FIG. 7 is a diagram illustrating an example of the data structure of the MH-extended event descriptor. The MH-extended event descriptor includes an item name (item_description_char) and an item description (item_char) for each item. In the item name, the name of the item is described. The item description describes the contents of the item. In the item name and item description, for example, the performer of the program is described. For example, when the item name is “producer” and the item description is “Nippon Taro”, the item name and item description indicate that the producer of the program is Nippon Taro.
The MH-extended format event descriptor includes an extended description (text_char). In the extended description, information about a program without an item may be described.

(Receiver)
Next, the configuration of the receiving device 10 according to the present embodiment will be described.
FIG. 8 is a block diagram illustrating a schematic configuration of the receiving device 10 according to the present embodiment.
The receiving device 10 includes a broadcast receiving unit 11, an operation input unit 12, a loudspeaker unit 13, a display unit 14, a storage unit 15, and a control unit 16. The control unit 16 includes a demodulation unit 161, a separation unit 162, an audio processing unit 163, a display processing unit 164, a resolution determination unit 165, and an operation control unit 166. The display processing unit 164 includes a program guide generation unit 1641, a channel selection processing unit 1642, and a video processing unit 1643.

  The broadcast receiving unit 11 receives a broadcast signal in a frequency band corresponding to a channel indicated by the channel selection signal input from the channel selection processing unit 1642 by radio waves. A broadcast signal transmitted from the transmission device 20 via the broadcast transmission path BT is received as a broadcast signal. The broadcast receiving unit 11 down-converts the received broadcast signal to the base frequency band. The broadcast receiving unit 11 outputs the broadcast signal generated by the down-conversion to the demodulation unit 161. The broadcast receiving unit 11 includes, for example, a tuner.

  The operation input unit 12 acquires an operation signal generated based on an operation of a viewer who is a user of the receiving device 10. The operation input unit 12 outputs the acquired operation signal to the control unit 16. The operation input unit 12 includes, for example, an infrared interface that receives an operation signal transmitted by infrared from the remote controller RC. The remote controller RC includes a plurality of buttons, and generates an operation signal indicating an instruction (command) corresponding to the button pressed by the operation of the viewer. The instruction includes a reception channel for receiving a broadcast signal, positions of various information displayed on the display unit 14, and the like. The position of various information includes the position of a display frame in which program information of one program among programs constituting the electronic program guide is arranged.

  The operation input unit 12 may include a physical member such as a button or a knob, and may generate an operation signal corresponding to an operation received by the member. The operation input unit 12 may include an input / output interface that receives an operation signal from another electronic device wirelessly or by wire. Other electronic devices include, for example, an electronic device including a display capable of displaying an image and a pointing device such as a touch sensor that receives an operation input, such as a multi-function mobile phone (including a so-called smartphone), a tablet terminal device, and the like But you can.

  The loudspeaker 13 reproduces sound based on the sound signal input from the sound processor 163 of the controller 16. The loudspeaker 13 includes, for example, a speaker. The loudspeaker 13 reproduces sound based on the program data i1 conveyed from the transmission device 20 by a broadcast signal, for example.

  The display unit 14 displays a video based on the video signal input from the display processing unit 164. The display unit 14 displays, for example, a video based on the program data i1 conveyed from the transmission device 20 by a broadcast signal, an electronic program guide based on the program arrangement information i2, and the like. The display unit 14 includes a liquid crystal panel, for example.

  The storage unit 15 stores a program for the control unit 16 or a component in the control unit 16 to execute various processes, data used for the process, and data generated by the process. The storage unit 15 includes, for example, a storage medium such as a ROM (Read Only Memory) and a RAM (Random Access Memory). The storage unit 15 may be configured to include other storage media or a storage device such as an HDD (Hard Disk Drive). Further, the storage unit 15 may be configured to include, for example, a so-called video memory that stores the audio signal output from the audio processing unit 163 and the image signal output from the display processing unit 164 in association with each other.

  The control unit 16 detects program data i1 and control data from the broadcast signal input from the broadcast receiving unit 11. The control unit 16 outputs an audio signal based on the detected program data i1 to the loudspeaker unit 13 and outputs a video signal based on the program data i1 to the display unit 14. The control unit 16 outputs a video signal indicating an electronic program guide to the display unit 14 from the program arrangement information i2 included in the control data. However, when the resolution of the video data is a non-displayable resolution at which the display unit 14 cannot display video based on the video data, the control unit 16 controls the display state of the display unit 14 to a predetermined display state.

  The demodulator 161 performs front-end processing on the broadcast signal input from the broadcast receiver 11 and converts it into multiplexed data. The front-end process is a series of processes from decoding a broadcast signal that is an analog signal to converting it into a multiplexed signal that is digital data. The front-end processing includes demodulation, error correction, and encryption processing. Each process of demodulation and encryption is equivalent to the reverse process of the modulation and encryption in the transmission apparatus 20. In the error correction process, the error correction code added in the transmission device 20 is used. For example, the demodulation unit 161 performs syndrome decoding using a BCH code and performs parity check using an LDPC code as error correction processing. The demodulator 161 outputs the converted multiplexed data to the separator 162.

  The separation unit 162 separates the multiplexed data input from the demodulation unit 161 into program data i1 and control data. The separation unit 162 further separates the control data into program arrangement information i2 and program configuration information i3. The separation unit 162 extracts audio data and video data from the program data i1 with reference to the MPT included in the separated program configuration information i3. The separation unit 162 outputs the extracted audio data to the audio processing unit 163, and outputs the extracted video data to the video processing unit 1643 of the display processing unit 164. The separation unit 162 outputs the separated program arrangement information i2 to the program table generation unit 1641 of the display processing unit 164, and outputs the separated program configuration information i3 to the resolution determination unit 165.

  The voice processing unit 163 decodes the voice data input from the separation unit 162 using a predetermined voice decoding method. The speech decoding method used by the speech processing unit 163 is a speech decoding method corresponding to the speech encoding method used for encoding the speech data transmitted by the transmission device 20. The voice processing unit 163 outputs the voice signal obtained by the decoding to the loudspeaker unit 13.

The program guide generation unit 1641 generates an electronic program guide based on the MH-EIT included in the program arrangement information i2 input from the separation unit 162. The timing for generating the electronic program guide is, for example, when an operation signal instructing generation of the electronic program guide is input from the operation input unit 12.
More specifically, the program guide generation unit 1641 refers to the MH-EIT and displays the length corresponding to the duration in ascending order of the start time set for each program (event) for each network ID. A row in which frames are arranged is formed. The network ID is information representing a channel that receives a broadcast signal. For each program, the program guide generation unit 1641 places the program name and program description extracted from the MH-short format event descriptor in the display frame of the program, and extracts each item from the MH-extended format event descriptor. An item name and item description are arranged in the display frame to generate an electronic program guide.

  However, the program guide generation unit 1641 determines whether or not the video resolution described in the video component descriptor of each program is a displayable resolution at which the display unit 14 can display the video. When the video resolution described in the video component descriptor is equal to or lower than the video resolution of the display unit 14, the program guide generation unit 1641 determines that the display unit 14 has a displayable resolution at which video can be displayed. When the video resolution described in the video component descriptor is higher than the video resolution of the display unit 14, the program guide generation unit 1641 determines that the display unit 14 cannot display the video. In the generated electronic program guide, the program guide generation unit 1641 is more appealing for the program information of the program for which the video resolution is determined to be displayable resolution than the program that is determined to be non-displayable resolution. Represented by the aspect. The program guide generator 1641 outputs a video signal indicating the generated electronic program guide to the video processor 1643. A display example of the electronic program guide will be described later.

  The channel selection processing unit 1642 selects a channel for receiving a broadcast signal based on the operation signal input from the operation input unit 12. When an operation signal indicating a specific channel is input, the channel selection processing unit 1642 selects a channel indicated by the operation signal. The specific channel corresponds to a channel related to the pressed channel button among the channel buttons included in the remote controller RC. When the electronic program guide is displayed on the display unit 14, the channel selection processing unit 1642 may select a channel that broadcasts a program related to the display frame indicated by the operation signal from among the display frames for each program. Good. The channel selection processing unit 1642 outputs a channel selection signal indicating the selected channel to the broadcast receiving unit 11. Therefore, the channel selection processing unit 1642 can cause the broadcast receiving unit 11 to receive a broadcast signal on the selected channel.

  The video processing unit 1643 decodes the video data input from the separation unit 162 using a predetermined video decoding method. The video decoding method used by the video processing unit 1643 is a video decoding method corresponding to the video encoding method used for encoding the video data transmitted by the transmission device 20. A video signal representing the video of the program is generated by decoding. The video processing unit 1643 outputs the generated video signal to the display unit 14. When a video signal instructing display of the electronic program guide is input from the program guide generating unit 1641, the video processing unit 1643 superimposes the electronic program guide on the video of the program generated by decoding and displays it. A video signal indicating the video may be generated.

  The resolution determination unit 165 determines the resolution of the video data detected from the broadcast signal being received based on the MPT included in the program configuration information i3 input from the separation unit 162. More specifically, the resolution determination unit 165 analyzes the MPT and determines an asset whose asset type is video. Then, the resolution determination unit 165 determines whether or not the video resolution described in the determined video component descriptor of the asset is a displayable resolution at which the display unit 14 can display the video. When the video resolution described in the video component descriptor is equal to or lower than the video resolution of the display unit 14, the resolution determination unit 165 can display a video that can be displayed on the display unit 14. It is determined that When the video resolution described in the video component descriptor is higher than the video resolution of the display unit 14, the resolution determination unit 165 determines that the display unit 14 cannot display the video. The resolution determination unit 165 outputs to the operation control unit 166 a display enable / disable flag indicating whether or not the display unit 14 has an undisplayable resolution that cannot display an image.

  The operation control unit 166 controls the operation of each component of the control unit 16 based on the display enable / disable flag input from the resolution determination unit 165. For example, when the resolution indicated by the display enable / disable flag is a displayable resolution, the operation control unit 166 causes the video processing unit 1643 of the display processing unit 164 to decode the video data. In that case, the display unit 14 displays a video based on the video signal input from the video processing unit 1643 (normal display). When the resolution indicated by the display enable / disable flag is a non-displayable resolution, the operation control unit 166 controls the operation of the display processing unit 164 so that the display state of the display unit 14 becomes a predetermined display state. For example, the operation control unit 166 causes the video processing unit 1643 to stop decoding the video data. When the decoding of the video data is stopped, since the video data is not input to the display unit 14, the display unit 14 represents a black screen. The black screen is in a state where the luminance of each pixel in the display area is the lowest. A predetermined caution image may be displayed on the black screen.

(Display example)
Next, a display example of the display unit 14 according to the present embodiment will be described.
FIG. 9 is a diagram showing an example of an electronic program guide according to the present embodiment. The electronic program guide is configured by arranging program information for each channel in each column. For each channel, display frames for each program are arranged from top to bottom in order of early start time. In the example shown in FIG. 9, among Ch1 to Ch3, Ch1 is a channel that provides a 4K program with a video resolution of 4K and an 8K program with a video resolution of 8K. It is shown that a program whose program name is “8K sports” is provided as an 8K program from 9:00 to 11:00. Arrows indicate programs that are currently being broadcast. This arrow does not necessarily have to be displayed on the display unit 14. In addition, illustration is abbreviate | omitted about the program information of another program.

  When the resolution of the display unit 14 is 8K and Ch1 is selected during the time zone, the resolution determination unit 165 displays the resolution of 8K that is the resolution of the video data detected from the broadcast signal being received. It is determined that The operation control unit 166 causes the video processing unit 1643 to decode the video data. The video signal obtained by the decoding is input to the display unit 14, and the video of the program whose program name is “8K sports” is displayed as a video based on the input video signal (FIG. 10).

  When the resolution of the display unit 14 is 4K and Ch1 is selected during that time zone, the resolution determination unit 165 displays a resolution of 8K that is the resolution of the video data detected from the received broadcast signal. It is determined that The operation control unit 166 causes the video processing unit 1643 to stop decoding the video data and causes the video processing unit 1643 to acquire a predetermined caution video signal. The acquired caution video signal is input to the display unit 14 and a video including the characters “This broadcast cannot be displayed” is displayed as a caution video based on the input caution video signal (FIG. 11). The viewer can know that the reason why the selected program is not displayed is not a failure of the receiving apparatus 10 but a broadcast.

  Note that the program guide generation unit 1641 displays an electronic program guide that represents program information related to a program whose video resolution is an undisplayable resolution in a less conspicuous manner than program information related to a program whose video resolution is a displayable resolution. Generate. As an inconspicuous mode, the program guide generation unit 1641 may represent the characters “8K sports” using characters having a lower contrast with the background (for example, gray out). Further, the channel selection processing unit 1642 may stop channel selection of a channel on which the program is broadcast for the program related to the display frame indicated by the operation signal input from the operation input unit 12.

  In addition, when it is determined that 8K, which is the resolution of the video data detected from the broadcast signal being received, is an undisplayable resolution, the video processing unit 1643 displays a predetermined video superimposed on the caution video. A video signal indicating a video for use may be generated. In that case, the display unit 14 displays a video in which a predetermined video is superimposed on the caution video as a video based on the video signal input from the video processing unit 1643. Any video having a resolution that can be displayed by the display unit 14 can be used as the predetermined video to be superimposed. For example, a video signal stored in the storage unit 15 in advance, a video signal obtained by reducing the resolution of a video indicated by a video signal obtained by decoding from video data detected from a broadcast signal, from 8K to 4K, etc. Is available. Therefore, the receiving apparatus 10 may include a converter (converter) for reducing the video resolution. In addition, the video processing unit 1643 may superimpose a display (for example, 4K characters) indicating the resolution on the video with reduced resolution.

(Reception processing)
Next, broadcast signal reception processing according to the present embodiment will be described. FIG. 12 is a flowchart showing a reception process according to the present embodiment.
(Step S101) The broadcast receiving unit 11 receives a broadcast signal transmitted through the broadcast transmission path BT. The demodulator 161 performs front-end processing on the received broadcast signal and converts it into multiplexed data. Thereafter, the process proceeds to step S102.
(Step S102) The resolution determination unit 165 refers to the MPT of the program configuration information i3 separated from the multiplexed data, and determines the video resolution described in the video component descriptor set for the video asset. The determined video resolution corresponds to the resolution of the video carried by the broadcast signal. Thereafter, the process proceeds to step S103.
(Step S103) The resolution determination unit 165 determines whether or not the determined video resolution is a displayable resolution at which the display unit 14 can display a video. When it is determined that the video resolution is a displayable resolution (YES in step S103), the process proceeds to step S105. When it is determined that the video resolution is an undisplayable resolution (NO in step S103), the process proceeds to step S104.

(Step S104) The operation control unit 166 controls the display state of the display unit 14 to be a predetermined display state so that a caution image is displayed. Here, the operation control unit 166 causes the video processing unit 1643 to stop decoding the video data, acquires the caution video signal, and causes the display unit 14 to output the acquired caution video signal. Then, it returns to step S101. Therefore, the processes in steps S101 to S104 are repeated until the resolution of the video carried by the broadcast signal becomes a new displayable resolution.

(Step S105) The operation control unit 166 causes the video processing unit 1643 of the display processing unit 164 to decode the video data. The display unit 14 displays video based on the video signal input from the video processing unit 1643 (normal display). Then, it returns to step S101.

  Note that the resolution determination unit 165 determines the video resolution based on the video signal resolution of the video component descriptor described in the descriptor area related to the currently received program in the MH-EIT instead of MPT in step S102. You may judge. For example, when the MPT related to the program data has not yet been acquired, such as immediately after switching the channel for receiving the broadcast signal, the processing delay can be reduced by using the already acquired MH-EIT.

  Further, the operation control unit 166 refers to the MH-EIT, and for the selected channel, the resolution of the video of the program provided at a predetermined time (for example, after 3 minutes) from the current time is the displayable resolution. It may be determined whether or not. When the determination as to whether or not the resolution is displayable changes from the determination at the present time, the operation control unit 166 may cause the display unit 14 to display a guidance video including a message for guiding the change. If the resolution of the program video provided at this time is a displayable resolution, for example, the guide video will stop displaying “This channel cannot be displayed in ● minutes.” The notice message is included. In addition, when the resolution of the video of the program provided at this time is not displayable, for example, a notice message that the video display will be resumed, for example, “This channel will be displayed in ● minutes.” Is included. The viewer can select the channel with more peace of mind by touching the display status change schedule.

As described above, the receiving device 10 according to the present embodiment includes the broadcast receiving unit 11 that receives a broadcast signal of a program including video. Further, when the resolution of the video is a non-displayable resolution at which the display unit cannot display the video, the receiving device 10 controls the display state of the display unit 14 to a predetermined display state, and the video resolution When the display unit 14 has a displayable resolution that can be displayed, the display unit 14 includes a display processing unit 164 that displays the video.
With this configuration, as a predetermined display state, for example, a viewer who has viewed a caution video can know that a video having a non-displayable resolution that cannot be displayed by the display unit 14 is provided. Even when the viewer leaves the receiver 10 without performing any operation, when the video having the displayable resolution that can be displayed by the display unit 14 is provided again, the display unit 14 displays the video. Since the display of the video resumes the viewer's expectation, excessive channel switching is avoided. Therefore, both the viewer and the broadcaster can be more satisfied than when simply controlling the display state of the display unit 14 to a predetermined display state.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. About the same structure as embodiment mentioned above, the same code | symbol is attached | subjected and the description is used.
In the receiving device 10 of the broadcast system 1 according to the present embodiment, a display availability flag indicating that the resolution is an undisplayable resolution may be input from the resolution determination unit 165 to the operation control unit 166. In that case, the operation control unit 166 operates the display processing unit 164 in the energy saving mode in which the power consumption is lower than the predetermined power consumption. The energy saving mode is an operation mode (power consumption reduction mode) lower than the power consumption when operating in the viewing mode as the predetermined power consumption. In the energy saving mode, for example, the operation control unit 166 causes the video processing unit 1643 to stop decoding the video data. In the energy saving mode, the operation control unit 166 may stop the light emission of the display unit 14 that emits image light (for example, a backlight). At this time, the display unit 14 does not display a video (screen display OFF). However, in the energy saving mode, the operation control unit 166 waits for an operation input from the operation input unit 12. The viewing mode is an operation mode in which an image carried by a broadcast signal is displayed on the display unit 14.

  When the operation mode is changed from the viewing mode to the energy saving mode, the operation control unit 166 may cause the display unit 14 to display an end reservation screen for a predetermined time (for example, one minute). The end reservation screen is a screen showing an instruction (reservation) of a time (end time) for ending the energy saving mode and changing (returning) the operation mode to the viewing mode. At this time, the video processing unit 1643 reads a pre-stored end reservation screen signal from the storage unit 15 and outputs the read end reservation screen signal to the display unit 14. In addition, the timing for starting the display of the end reservation screen may be a predetermined time (for example, one minute) earlier than the start time of the program whose video resolution is a resolution that cannot be displayed. The viewer can instruct a desired end time before the start of the energy saving mode.

  When the display unit 14 displays the end reservation screen based on the end reservation screen signal, the operation control unit 166 determines the time indicated by the operation signal input from the operation input unit 12 as the end time. Further, when the display unit 14 displays the electronic program guide and the end reservation screen, the operation control unit 166 is a program whose program information is displayed in the display frame indicated by the operation signal, and the video of the program is displayed. When the resolution is a displayable resolution, the start time of the program may be determined as the end time. The operation control unit 166 changes the operation mode from the viewing mode to the energy saving mode when the end time is set within a predetermined time after the display of the end reservation screen starts, and otherwise maintains the operation mode in the viewing mode. May be. The operation control unit 166 changes the operation mode from the energy saving mode to the viewing mode when the current time (current time) reaches the set end time. At this time, the operation control unit 166 resumes decoding of the video data in the video processing unit 1643. The operation control unit 166 restarts the light emission when the light emitting unit of the display unit 14 stops the light emission.

When the operation signal indicates an end time that is earlier than the end time of the program whose video resolution is the non-displayable resolution, the operation control unit 166 ignores the instruction and determines the end time. It does not have to be.
In addition, when the reception device 10 includes a converter for reducing the video resolution, the operation control unit 166 may determine the instructed time as the end time. In that case, the operation control unit 166 causes the conversion unit to convert the resolution of the video indicated by the video signal generated by the video processing unit 1643 from the determined end time to the end of the program, and outputs the video signal indicating the converted video. The display unit 14 may be used.

When the operation mode is the energy saving mode and the operation signal input from the operation input unit 12 indicates the end of the energy saving mode or the cancellation of the reservation for the end of the energy saving mode, the operation mode is changed to the viewing mode. The control unit 16 further performs processing instructed by the input operation signal, for example, channel selection processing in the channel selection processing unit 1642. However, at that time, the video resolution described in the video component descriptor, that is, the resolution of the video carried by the broadcast signal may still be a non-displayable resolution. In that case, the operation control unit 166 may control the display processing unit 164 to change the display state of the display unit 14 to a predetermined display state. The operation control unit 166 may display, as a predetermined display state, an electronic program guide as in the first embodiment, a caution video, a video of a program with reduced resolution, or a combination thereof on the display unit 14. .
If the resolution of the video signal carried by the broadcast signal received on the newly selected channel or the broadcast signal received after the start of the new program is a displayable resolution, the operation control unit 166 End the energy saving mode and change the operation mode to the viewing mode.

(Display example)
Next, a display example of the display unit 14 according to the present embodiment will be described.
FIG. 13 is a diagram showing an example of an electronic program guide according to the present embodiment. In the example shown in FIG. 13, an 8K program with a program name “8K Sports” is provided from 9 o'clock to 11 o'clock in Ch1, and the program name is “Hello TV” from 11 o'clock to 13 o'clock. It is shown that a 4K program is provided. Illustrations of other program information are omitted.

  When the resolution of the display unit 14 is 8K and Ch1 is selected in both the time zone from 9 o'clock to 11 o'clock and the time zone from 11 o'clock to 13 o'clock, the resolution determination unit 165 receives the broadcast being received. It is determined that all the resolutions of the video data detected from the signal are displayable resolutions. The operation control unit 166 maintains the operation mode as the viewing mode, and causes the video processing unit 1643 to decode the video data. The display unit 14 displays the video of the program whose program name is “8K sports” in the time zone from 9:00 to 11:00 as video based on the video signal input from the video processing unit 1643 (FIG. 14A )). The display unit 14 displays the video of the program whose program name is “Hello TV” in the time zone from 11:00 to 13:00 (FIG. 14B).

  When the resolution of the display unit 14 is 4K and Ch1 is selected in the time zone from 9 o'clock to 11 o'clock, the resolution determination unit 165 has the resolution of the video data detected from the broadcast signal being received. It is determined that the resolution is not displayable. The operation control unit 166 changes the operation mode from the viewing mode to the energy saving mode. The operation control unit 166 stops the video display on the display unit 14 by causing the video processing unit 1643 to stop decoding the video data (FIG. 15A). When the current time reaches the end time (arbitrary time from 11:00 to 13:00) or 11:00 which is the start time of “Hello TV” which is a new 4K program, the operation control unit 166 receives the broadcast signal being received. It is determined that the resolution of the video data detected from the above is a displayable resolution. The operation control unit 166 changes the operation mode from the energy saving mode to the viewing mode, and causes the video processing unit 1643 to decode the video data. The display unit 14 starts displaying the video of the program whose program name is “Hello TV” (FIG. 15B).

(Reception processing)
Next, broadcast signal reception processing according to the present embodiment will be described. FIG. 16 is a flowchart showing a reception process according to this embodiment. The process illustrated in FIG. 16 includes the processes of steps S101 to S103, S105, and S111 to S116. However, the case where the operation mode is the viewing mode at the beginning of the process of FIG. 16 is taken as an example. In the present embodiment, when the resolution determination unit 165 determines in step S103 that the video resolution is described in the video component descriptor (NO in step S103), the process proceeds to step S111.

(Step S <b> 111) The operation control unit 166 causes the display unit 14 to display an end reservation screen indicating guidance for specifying the end time of the energy saving mode for a predetermined time. The operation control unit 166 determines an end time based on the operation signal input from the operation input unit 12. Then, it changes to step S112.
(Step S112) The operation control unit 166 changes (transitions) the operation mode from the viewing mode to the energy saving mode, and causes the video processing unit 1643 to stop decoding the video data. Thereafter, the process proceeds to step S113.

(Step S113) The operation control unit 166 determines whether or not the current time has reached the end time. When it is determined that it has reached (YES in step S113), the process proceeds to step S116. When it is determined that it has not been reached (NO in step S113), the process proceeds to step S114.
(Step S114) The operation control unit 166 determines whether an operation signal is input from the operation input unit 12. When it is determined that the input has been made (YES in step S114), the process proceeds to step S115. When it is determined that no input has been made (NO in step S114), the process returns to step S112 (standby).
(Step S115) The operation control unit 166 determines whether or not the input operation signal indicates the end of the energy saving mode or the cancellation of the reservation for the end of the energy saving mode. When it is determined to be shown (step S115 YES), the process proceeds to step S116. When it is determined not to be shown (NO in step S115), the process returns to step S112 (standby).

(Step S116) The operation control unit 166 ends the energy saving mode, and changes (returns) the operation mode to the viewing mode. Then, it returns to step S101.

  In the process shown in FIG. 16, when it is determined in step S114 that an operation signal has been input (YES in step S114), step S115 may be omitted and the process may proceed to step S116. In this case, the energy saving mode ends when the operation input is made regardless of the instruction of the operation signal, and the operation mode is changed to the viewing mode.

As described above, the receiving device 10 according to the present embodiment operates the display processing unit 164 in the energy saving mode in which the power consumption is lower than the predetermined power consumption when the video resolution is a display impossible resolution. An operation control unit 166 that determines an end time for ending the energy saving mode according to the input is provided.
With this configuration, the energy saving mode can be ended and the viewing mode can be resumed at the end time determined according to the operation of the viewer. Since the display of the video resumes at the time desired by the viewer, the viewer can be more satisfied with the broadcast service.

(Third embodiment)
Next, a third embodiment of the present invention will be described. About the same structure as embodiment mentioned above, the same code | symbol is attached | subjected and the description is used.
In the broadcasting system 1 according to the present embodiment, the transmission device 20 acquires program arrangement information i2 further including link information related to other content corresponding to a certain program. The other content is content including video (for example, 4K video) that can be displayed regardless of the type of the receiving device 10. Other forms of content provision include, for example, broadcast programs broadcast on other channels and content that can be provided by communication. The link information includes transmission source information indicating the location of the transmission source of other content. As link information, for example, it is expressed using a hyperlink descriptor. An example of the hyperlink descriptor will be described later.

Next, transmission processing according to the present embodiment will be described. FIG. 17 is a flowchart showing a transmission process according to the present embodiment.
(Step S201) The transmission apparatus 20 acquires program data i1 including video data indicating video of a program. Thereafter, the process proceeds to step S202.
(Step S202) The transmission apparatus 20 includes program configuration information i2 including program configuration information i3 indicating the configuration of the program data i1, program information regarding program data for each program, and link information regarding other content corresponding to a certain program, and To get. Thereafter, the process proceeds to step S203.
(Step S203) The transmission apparatus 20 multiplexes the program data i1, the control data including the program arrangement information i2 and the program configuration information i3 to generate multiplexed data. Thereafter, the process proceeds to step S204.
(Step S204) The transmission apparatus 20 performs the above-described front-end processing on the generated multiplexed data and converts it into a broadcast signal. The transmission device 20 transmits the converted broadcast signal to the reception device 10 by sending it to the broadcast transmission path BT. Then, the process shown in FIG. 17 is complete | finished.

(Hyperlink descriptor)
Next, the data structure of the hyperlink descriptor according to this embodiment will be described. FIG. 18 is a diagram illustrating an example of the data structure of the hyperlink descriptor.
The hyperlink descriptor is described in a descriptor area (descriptor ()) for each event (program) of MH-EIT (FIG. 5). The hyperlink descriptor includes items of a hyperlink type (hyper_linkage_type), a link destination type (link_destination_type), private data (private_data), and a priority type (priority_type).

  In the hyperlink type (hyper_linkage_type), a code indicating the form of the link is described. The form of the link is, for example, a television program or a data broadcast. In the link destination type (link_destination_type), a code indicating the type of link destination data is described. The type of data at the link destination is, for example, service, event, content (content), or the like. An event is designated when the link destination provides program data of a broadcast program. In private data (private_data), individually defined values are described. As an individually defined value, for example, a content name (program name or the like) may be described. In the priority type (priority_type), when there are two or more types of transmission paths to be provided, a code indicating the type of transmission path to be used with priority is described. For example, “0x01” indicates a network (communication transmission path), and “0x02” indicates a broadcast (broadcast transmission path).

  The hyperlink descriptor further includes URL (URL_byte), original network identification (original_network_id), transport stream identification (transport_stream_id), service identification (service_id), event identification (event_id), and start as information indicating the location of the link destination. A time (start_time) and a duration (duration) are included. For the content provided on the network as a transmission path, the transmission source is specified by URL (URL_byte). For a program provided by broadcasting, a channel provided by an original network identification (original_network_id) is specified. The transport stream identification (transport_stream_id) identifies the asset to which the program data is provided. The program to be provided is specified by the service identification (service_id) and the event identification (event_id). The broadcast time is specified by the start time (start_time) and the duration (duration).

(Receiver)
Next, the configuration of the receiving device 10 according to the present embodiment will be described.
FIG. 19 is a block diagram illustrating a schematic configuration of the receiving device 10 according to the present embodiment.
The receiving device 10 is configured to further include a communication unit 17 and a data input / output unit 18 with respect to the receiving device 10 shown in FIG.

  The communication unit 17 is connected to the communication transmission line NT by wire or wirelessly, and transmits / receives various signals to / from other devices connected to the communication transmission line NT. A server device that provides content related to a certain program is connected to the communication transmission line NT. The communication transmission line NT includes, for example, a wide area communication network such as the Internet. The communication unit 17 is, for example, a communication interface.

  The data input / output unit 18 is connected to the display device 30 by wire or wirelessly, and outputs various video signals input from the display processing unit 164 to the display device 30. Further, the data input / output unit 18 outputs various signals input from the display device 30 to the control unit 16. The data input / output unit 18 is, for example, a data input / output interface. The display device 30 is an electronic device including a display unit that displays video based on an input video signal. The display device 30 is an electronic device (second screen) that displays other video accompanying the video of the program displayed on the display unit 14 or information related to the program. The display device 30 is, for example, a multi-function mobile phone (including a so-called smartphone), a tablet terminal device, or the like.

  The program guide generation unit 1641 includes a hyperlink descriptor as link information in the MH-EIT descriptor area (descriptors ()) for a program whose video resolution described in the video component descriptor is an undisplayable resolution. It is determined whether or not. The program guide generation unit 1641 analyzes the hyperlink descriptor, and acquires a channel or URL as a name of another content corresponding to the program and a link destination. The program guide generation unit 1641 generates an electronic program guide that further includes a tag representing the link destination of the other content acquired in the display frame of the program and its name. The display in the tag may be displayed in a more conspicuous manner than the program, for example, with a higher contrast. In addition, when there are a plurality of link destinations indicated by the link information related to one program and the priority order is determined for them, the program guide generation unit 1641 arranges a set of link destinations and program names in that order. May be.

  Note that the program guide generation unit 1641 may determine whether other content described in the hyperlink descriptor can be used. The program guide generation unit 1641 arranges a set of link destinations and names in the electronic program guide for other contents determined to be usable, and does not arrange the set for other contents determined not to be usable. When the other content is a broadcast program, the program table generation unit 1641 uses a channel that is within the broadcast time and can be used without a special contract or a program provided on a channel contracted with a provider. It is determined that it can be performed, and it is determined that other programs cannot be used. Channels that can be used without any special contract include, for example, a channel for promotion (promo channel) and a channel exclusively for mail order (shop channel). Whether or not the channel is a contracted channel can be determined, for example, by determining whether or not a set of a decryption key issued by the provider and a user ID for specifying the receiving device 10 is stored in the storage unit 15 as contract information. When the other content is content provided on the network, the program guide generation unit 1641 determines that the other content can be used when the communication unit 17 is connected to the communication transmission line NT, and the communication unit 17 Is not connected to the communication transmission line NT, it is determined that other contents cannot be used.

  When the resolution of the video carried by the broadcast signal being received is an unreceivable resolution and there is link information related to other usable content, the operation control unit 166 is a signal carrying the other content. Is received by the broadcast receiving unit 11 or the communication unit 17. The operation control unit 166 refers to the link information and determines the link destination of other content. When the other content is a broadcast program, the operation control unit 166 determines a channel provided as the determined link destination. The operation control unit 166 generates a channel selection signal indicating the determined channel, and outputs the generated channel selection signal to the broadcast reception unit 11. The broadcast receiving unit 11 receives a broadcast signal on the channel. In addition, when other content is content (network content) provided on the network, the operation control unit 166 generates a request signal for the content, and links the generated request signal via the communication unit 17. It is transmitted to the previous server device. The communication unit 17 receives content data including the content from the server device as a response to the transmitted request signal. The communication unit 17 outputs the received content data to the separation unit 162. The separation unit 162 separates the video data from the content data input from the communication unit 17 and outputs the separated video data to the video processing unit 1643. Therefore, the video of the linked broadcast program is displayed on the display unit 14.

(Display example)
Next, a display example of the display unit 14 according to the present embodiment will be described.
FIG. 20 is a diagram showing an example of an electronic program guide according to the present embodiment. FIG. 20A is an example of an electronic program guide displayed when the resolution of the display unit 14 is 4K. A tag Lk1 is superimposed in a display frame of an 8K program whose program name is “8K sports” from 9 o'clock to 11 o'clock in Ch1. Illustrations of other program information are omitted. The tag Lk1 is surrounded by a thick frame, and the brightness or luminance of the background in the tag Lk1 is higher than the background in the display frame. The tag Lk1 indicates that there is other content available at that time as the content related to this program. As described above, the display unit 14 having a resolution of 4K cannot display the video of this program.

  In FIG. 20B, “Ch 33” is displayed as the link destination channel and “Hello Japan” is displayed as the content name as link information on the tag Lk1. In the present embodiment, the operation control unit 166 instructs Ch33 as a channel through which the broadcast receiving unit 11 receives a broadcast signal. Therefore, the display unit 14 can display an image of a program whose program name is “Hello Japan” as an image based on the image data carried by the broadcast signal received by Ch33 (FIG. 21C). .

For an 8K program for which no link information exists, the operation control unit 166 stops decoding of the video data to the video processing unit 1643 and outputs a caution video signal to the display unit 14. In that case, the display unit 14 displays a caution image (FIG. 21B).
If the resolution of the display unit 14 is 8K, the tag Lk1 does not necessarily have to be displayed in the electronic program guide. This is because, when Ch1 is selected, an image of a program whose program name is “8K sports” is possible in the time zone from 9:00 to 11:00 (FIG. 21A).

  FIG. 22A shows another example of an electronic program guide displayed when the resolution of the display unit 14 is 4K. In this example, program information of all programs broadcast from 7:00 to 13:00 is represented for each of Ch1, Ch2, and Ch3. However, the background in the display frame of the 8K program that cannot display the video is represented by a lower luminance than other programs (4K program) that can display the video. In this example, the 8K program corresponds to “8K sports”, “morning news”, and “8K music”. Among them, link information exists for “8K music”. Therefore, a tag Lk2 representing “Ch33” as the link destination channel, which is a part of the link information, and “Hello Japan” as the content name is added to the display frame of this program (FIG. 22B). For “8K sports” and “Morning news”, no tag information is displayed because there is no link information.

  It is assumed that the receiving apparatus 10 receives a broadcast signal from 7 o'clock to 13 o'clock on Ch3 under the program organization shown in FIG. From 7 o'clock to 9 o'clock, the broadcast receiving unit 11 receives a broadcast signal of a program whose program name is “Today's Weather” at Ch3. At 9:00, which is the start time of the next program, the operation control unit 166 changes the reception channel from Ch3 to the linked Ch33. From 9 o'clock to 11 o'clock, the broadcast receiving unit 11 receives the broadcast signal of the program whose program name is “Hello Japan” at Ch33. At 11:00, which is the end time of the program, the reception channel is returned from the linked Ch33 to the Ch3 before the change. From 11:00 to 13:00, the broadcast receiving unit 11 receives a broadcast signal of a program whose program name is “Afternoon Weather” at Ch3.

  In the same time zone, there may be a plurality of channels that provide a program for which link information exists. Of the plurality of channels, the program guide generation unit 1641 may display the tag Lk3 related to the channel from which the broadcast receiving unit 11 receives a broadcast signal, and may not display other tags. Thus, the viewer is prompted to view other content corresponding to the program provided on the currently received channel, and is not prompted to view other content corresponding to the other program.

  FIG. 23A shows an example of an electronic program guide displayed when the resolution of the display unit 14 is 8K. The program organization in this example is the same as the program organization shown in FIG. Since the display unit 14 can display videos of all programs, there is no particular difference in display mode between programs. In the example shown in FIG. 23A, the tag Lk2 is not added to the program “8K music” in which link information exists. This is because the broadcaster allows the viewer to view an 8K program related to a video having a higher resolution than other content.

However, when the display device 30 is connected to the data input / output unit 18, the program guide generation unit 1641 does not output the video signal indicating the generated tag Lk3 to the display unit 14, but the data input / output unit 18. May be output to the display device 30 via In the example illustrated in FIG. 23B, the tag Lk3 is displayed on the display unit 35 of the display device 30.
In addition, an operation signal indicating the tag Lk3 may be input by the operation of the viewer. In that case, the display device 30 transmits a request signal for the program “Hello Japan”, which is another content broadcast on Ch33 displayed as the link destination to the tag Lk3 as the link destination, to the operation control unit 166 of the reception device 10. May be. In response to the input of the request signal from the display device 30, the operation control unit 166 uses the above-described method to transmit a broadcast signal carrying the program “Hello Japan” corresponding to the program “8K music” being received by Ch3. The broadcast receiving unit 11 receives the signal. The video processing unit 1643 outputs a video signal obtained by decoding video data related to the program “Hello Japan” acquired from the broadcast signal received by the Ch 33 to the display device 30 via the data input / output unit 18. Therefore, the display device 30 displays a video of a program whose program name is “Hello Japan” as a video related to other content (second screen compatible).

  Further, when the receiving device 10 includes a recording unit (not shown) for recording the broadcast video data, the recording unit displays the video in response to an instruction of an operation signal input from the operation input unit 12. Video data related to other content corresponding to the program to be played may be recorded. In the example shown in FIG. 23A, when the display unit 14 displays the video of the program “8K music”, the recording unit may record video data indicating the video of the program “Hello Japan” (recording). Correspondence).

(Reception processing)
Next, broadcast signal reception processing according to the present embodiment will be described. FIG. 24 is a flowchart showing a reception process according to this embodiment. The process illustrated in FIG. 24 includes the processes of steps S101 to S105 and S121 to S124. In this embodiment, when the resolution determination unit 165 determines in step S103 that the video resolution is described in the video component descriptor (NO in step S103), the process proceeds to step S121.

(Step S121) The program guide generation unit 1641 analyzes the MH-EIT indicating the program arrangement information i2, and stores it in the descriptor area (descriptors ()) of the video component descriptor for each program whose video resolution is an undisplayable resolution. It is determined whether or not a hyperlink descriptor representing link information is described. Thereafter, the process proceeds to step S122.
(Step S122) When it is determined that there is a program in which a hyperlink descriptor representing link information is described (YES in Step S122), the process proceeds to Step S123. If there is no program for which it is determined that the hyperlink descriptor is described (NO in step S122), the process proceeds to step S104.

(Step S123) The program guide generation unit 1641 confirms whether other content described by the hyperlink descriptor representing the link information is available. For the program determined to be usable, the program guide generation unit 1641 generates an electronic program guide in which a tag indicating the link destination and name of other content corresponding to the program is added to the display frame of the program. . The program guide generation unit 1641 displays the generated electronic program guide on the display unit 14. Thereafter, the process proceeds to step S124.

(Step S124) The operation control unit 166 sends a signal carrying content data of other usable content corresponding to the program currently being received from the link destination of the other content to the broadcast receiving unit 11 or the communication unit. 17 to receive. The video processing unit 1643 outputs the video signal obtained by decoding the video data included in the received content data to the display unit 14. The display unit 14 displays the video of other content acquired from the link destination as the video indicated by the video signal from the video processing unit 1643. Then, it returns to step S101.

In step S122, if there is no program for which it is determined that a hyperlink descriptor is described (NO in step S122), the process proceeds to step S111 (FIG. 16), and the receiving apparatus 10 replaces step S104 with steps S111 to S111. You may perform the process of S116 (FIG. 16).
In addition, when there are a plurality of link destinations indicated by the link information related to the program being received, and priorities are assigned to them, the operation control unit 166 performs the process of step S124 with the priorities for each link destination. You may try. Even if acquisition of content data from one link destination fails, acquisition of other usable content data is attempted, so the possibility that no video is displayed on the display unit 14 can be reduced.

  In the above-described example, when it is determined that the resolution of the broadcast video is an undisplayable resolution, the other content displayed on the tag is displayed regardless of whether or not the operation signal is input from the operation input unit 12. A case where the broadcast receiving unit 11 or the communication unit 17 receives the signal is taken as an example. When an operation signal instructing a tag displayed on the electronic program guide is input, the operation control unit 166 transmits a signal carrying content data of the other content from the link destination of the other content displayed on the tag. The broadcast receiving unit 11 or the communication unit 17 may receive the data. In that case, the viewer can select whether or not to view other content corresponding to the program whose resolution of the video is a display-impossible resolution according to the intention.

  Further, instead of the hyperlink descriptor as the link information, the link destination and name of other content may be described using an MH-link descriptor. In that case, the program guide generation unit 1641 analyzes the MH-link descriptor instead of the hyperlink descriptor, and determines the link destination and name of other content.

As described above, the receiving apparatus 10 according to the present embodiment acquires link information related to other content corresponding to the program being received from the program arrangement information related to the program being broadcast or scheduled to be broadcast, which is carried by the broadcast signal. When the video resolution is an undisplayable resolution, the broadcast receiving unit 11 or the communication unit 17 further includes an operation control unit 166 that receives other content.
With this configuration, the display unit 14 displays a video that can be displayed as another content, instead of a video of a program whose resolution is an undisplayable resolution. Therefore, the viewer can view other content related to the program to be provided on the selected channel without performing an operation related to channel switching. In addition, the broadcaster can specify information related to other contents in accordance with the intention as part of the program arrangement information. Therefore, both viewers and broadcasters can be more satisfied with the broadcast service.

In the receiving apparatus 10, the program arrangement information includes program information for each program, the program information for each program is arranged based on the broadcast time and channel of the program, and a program that is receiving at least a part of the link information A program guide generating unit 1641 for generating an electronic program guide represented as a tag in a display frame for displaying the program information.
With this configuration, provision of other content provided in place of a program whose video resolution is not displayable, and information such as a time zone thereof are displayed in the electronic program guide. Since the viewer can know information such as the provision of other content and the time period, the viewer can be more satisfied with the provision of the other content.

In the receiving device 10, the operation control unit 166 determines whether other content can be used.
With this configuration, it is possible to eliminate display of information regarding other contents that cannot be used. Therefore, it is possible to avoid disappointing by touching information related to other contents that cannot be used by the viewer.

(Fourth embodiment)
Next, a fourth embodiment of the present invention will be described. About the same structure as embodiment mentioned above, the same code | symbol is attached | subjected and the description is used.
In the broadcasting system 1 according to the present embodiment, the display unit 14 of the receiving device 10 includes an LED (Light Emitting Diode) lamp 14-1 indicating an energized state and a resolution of a broadcast video as illustrated in FIG. An LED lamp 14-2 is provided. As the energized state, a state where power is supplied (power supply ON) or a state where power supply is stopped (power supply OFF) is represented. Displays the resolution of the video. The LED lamp 14-1 and the LED lamp 14-2 for each resolution include at least two light emitting elements having different light emission modes. The light emission mode is, for example, the color of emitted light. In the example shown in FIG. 25, the power-on state of the receiving device 10 is represented by the LED lamp 14-1 being lit in green. The LED lamps 14-2 at the left end, the center, and the right end are LED lamps corresponding to resolutions of 8K, 4K, and 2K, respectively. In the selected channel, the video of the program “8K Sports” is provided as a video whose resolution cannot be displayed by the display unit 14 is 8K, which is indicated by the left-most LED lamp 14-2 lighting in red. The Note that 2K is a resolution of 1920 pixels in the horizontal direction and 1080 pixels in the vertical direction. The resolution determination unit 165 can determine that the resolution of the provided video is 2K when the value of the video signal resolution described in the video component is “5” (see FIG. 4).

In the present embodiment, the resolution determination unit 165 determines whether or not the information on the resolution of the broadcast video data can be acquired. If the video resolution information cannot be acquired, for example, if the reception quality on the selected channel is inferior, or if the received signal on that channel is weak, transmission of broadcast waves from the broadcasting equipment on that channel If is stopped, etc. If the resolution determination unit 165 cannot acquire the video resolution information, the resolution determination unit 165 outputs unacquirable information indicating that the information cannot be acquired to the operation control unit 166. When the information on the video resolution can be acquired, the resolution determination unit 165 determines whether the display unit 14 can display the acquired video resolution as described above. The resolution determination unit 165 adds information indicating the resolution as the determination target to a display permission flag indicating whether display on the display unit 14 is possible, and outputs the information to the operation control unit 166.
The operation control unit 166 uses the LED lamp 14-based on either the display enable / disable flag or unacquisition information input from the resolution determination unit 165, the operation signal and operation mode input from the operation input unit 12, or a combination thereof. 1 and 14-2 are controlled.

  When an operation signal instructing activation (power ON) is input, the operation control unit 166 starts supplying power necessary for the operation to each component of the device itself, and sets the LED lamp 14-1 to a predetermined color ( For example, it is lit in green). At that time, the operation control unit 166 supplies power to the green light emitting element included in the LED lamp 14-1. When an operation signal instructing to stop the operation (power OFF) is input, the operation control unit 166 stops supplying power to each component of the device itself and emits red light provided in the LED lamp 14-1. Supply of electric power to the element is started, and supply of electric power to the green light emitting element is stopped. Further, the operation control unit 166 does not supply power to the LED lamp 14-2 corresponding to any resolution.

  Note that when the operation mode is switched from the viewing mode to the energy saving mode due to a cause other than the resolution, the operation control unit 166 may stop supplying power to the LED lamps 14-2 related to any resolution. When the operation mode is switched to the energy saving mode due to a cause other than the resolution, for example, when the operation mode is the viewing mode, the operation signal is not continuously input for a predetermined time (for example, 3 to 10 minutes).

  Furthermore, even when non-acquisition information is input from the resolution determination unit 165, the operation control unit 166 may switch the operation mode from the viewing mode to the energy saving mode. In that case, the operation control unit 166 may light up the LED lamps 14-2 corresponding to all the resolutions in red. All resolutions mean all resolution candidates that may be provided, and in the example shown in FIG. 25, all of 8K, 4K, and 2K are applicable. At that time, the operation control unit 166 supplies power to the red light emitting elements included in the LED lamps 14-2 corresponding to all the resolutions.

  The resolution determination unit 165 determines the resolution of the video data detected from the broadcast signal being received based on the MPT included in the program configuration information i3 input from the separation unit 162. More specifically, the resolution determination unit 165 analyzes the MPT and determines an asset whose asset type is video.

  When the display enable / disable flag indicates that the video resolution is the displayable resolution, the operation control unit 166 supplies power to the green light emitting element included in the LED lamp 14-2 corresponding to the resolution, and the red light emitting element. Stop supplying power to When the display enable / disable flag indicates that the video resolution is not displayable, the operation control unit 166 supplies power to the red light emitting element included in the LED lamp 14-2 corresponding to the resolution, and emits green light. Stop supplying power to the element.

  Therefore, the operation state of the receiving device 10 is represented by the blinking of the LED lamps 14-1 and 14-2 and the mode thereof. As shown in the second row of FIG. 26, when the LED lamp 14-1 indicating power ON / OFF is lit in green and the LED 14-2 corresponding to the resolution is lit in red, the channel is being selected. In FIG. 5, it is shown that an image having a display-incapable resolution is provided. As shown in the third row of FIG. 26, when the LED lamp 14-1 is lit in green and the LED 14-2 corresponding to the resolution is lit in green, the displayable resolution is selected during channel selection. It shows that the image which has is provided.

 As shown in the fourth row of FIG. 26, the fact that the LED lamp 14-1 is lit in green and the LEDs 14-2 are all turned off is a continuous operation for a predetermined period during channel selection. Indicates that the mode has been changed to the energy saving mode due to not being performed. As shown in the fifth row of FIG. 26, the LED lamp 14-1 is lit in green and the LED lamps 14-2 corresponding to all resolutions are lit in red (all red). 165 indicates that resolution information cannot be acquired. As shown in the sixth line of FIG. 26, the fact that the LED lamps 14-1 are lit red and all the LEDs 14-2 are turned off indicates that the operation has been instructed to turn off the power. As described above, even when the video is not displayed, the viewer can determine whether the cause is the resolution of the display unit 14, the energy-saving mode that has been changed for reasons other than the resolution, the inability to receive broadcast signals on the selected channel, It is possible to intuitively recognize whether the operation is instructed to stop.

Next, the reception process according to the present embodiment will be described. FIG. 27 is a flowchart showing a reception process according to this embodiment. The process shown in FIG. 27 includes the processes of steps S101 to S105 and S131 to S137. In the process shown in FIG. 27, the process proceeds to step S131 after step S101.
(Step S131) The resolution determination unit 165 determines whether or not information on the resolution of the video data to be broadcast can be acquired. When it is determined that it is possible (YES in step S131), the process proceeds to step S102. When it is determined that it cannot be performed (NO in step S131), the process proceeds to step S132.

(Step S132) Similar to step S104, the operation control unit 166 controls the display unit 14 to display a caution image with the display state set as a predetermined display state. Thereafter, the operation control unit 166 proceeds to step S133 (step S133), and similarly to step S112, the operation control unit 166 transitions the operation mode from the viewing mode to the energy saving mode. Thereafter, the process proceeds to step S134.
(Step S134) The operation control unit 166 turns on the LED lamps 14-2 related to all resolutions in red. Then, it returns to step S101.

In the process shown in FIG. 27, the process proceeds to step S135 after step S105.
(Step S135) The operation control unit 166 turns on the LED lamp 14-2 related to the resolution determined to be displayable resolution in green. Then, it returns to step S101.
In the process illustrated in FIG. 27, the process proceeds to step S136 after step S104.
(Step S136) The operation control unit 166 transitions the operation mode from the viewing mode to the energy saving mode, similarly to step S112. Thereafter, the process proceeds to step S137.
(Step S137) The operation control unit 166 turns on the LED lamp 14-2 related to the resolution determined to be a display incapable resolution in red. Then, it returns to step S101.

  In the above-described example, the display mode of the LED lamp 14-2 corresponding to each of the displayable resolution and the non-displayable resolution is green and red, and the LED lamps 14-1 corresponding to the power ON and OFF respectively. Although the case where the display mode is green or red is taken as an example, it is not limited to this. As the display mode, other colors may be used, and brightness, presence / absence of blinking, blinking cycle, and the like may be used. However, it is preferable that the display mode corresponding to the displayable resolution and the display mode corresponding to the power ON are the same or similar. In addition, the light source used as a light emission part is not necessarily restricted to an LED lamp. Instead of the LED lamp, a fluorescent lamp, a light bulb, or the like may be used.

  Moreover, the light source does not need to be installed in the outer edge part (bezel) of the display part 14, as shown in FIG. For example, the light source may be installed on the surface of the housing of the receiving device 10, the remote controller RC, or the like. Further, the light source may not be electrically connected to the receiving apparatus 10 main body. In that case, the operation control unit 166 transmits to each light source a control signal indicating whether or not lighting is necessary, and in the case of lighting. The light source is turned on or off according to the control signal received from the operation control unit 166. When lit, the light source is lit in the manner indicated by the control signal.

As described above, in the receiving device 10 according to the present embodiment, the operation control unit 166 has different video resolutions in a case where the video resolution is a non-displayable resolution and a displayable resolution. The light emitting unit corresponding to is turned on.
With this configuration, the viewer can intuitively understand whether the video is not displayed because the resolution of the video to be broadcast is a non-displayable resolution that cannot be displayed by the display unit 14. The operation control unit 166 turns on the second light emitting unit different from the light emitting unit corresponding to the resolution of the video when the activation of the receiving device 10 is instructed, and is instructed to stop the operation of the receiving device 10. Sometimes, the second light emitting unit may be turned off.
Further, when the resolution determination unit 165 cannot acquire the resolution information of the video provided in the program, the operation control unit 166 may turn on the light emitting unit in a mode different from the individual resolution.
With this configuration, the viewer can recognize the inability to receive on the selected channel as the reason why the resolution information cannot be acquired.
With this configuration, the viewer can recognize whether the receiving apparatus 10 is operating or whether the operation has been stopped by the operation instructed by the reception by visually recognizing the second light emitting unit. Therefore, the viewer can determine whether the reason why the video is not displayed is that the operation instructed by the user is stopped or that the period during which the video is not operated is continued for a predetermined time or more.

(Fifth embodiment)
Next, a fifth embodiment of the present invention will be described. About the same structure as embodiment mentioned above, the same code | symbol is attached | subjected and the description is used.

  In the broadcast system 1 according to the present embodiment, the operation control unit 166 of the reception device 10 has the MH-EIT when the display availability flag input from the resolution determination unit 165 indicates that the video resolution is a displayable resolution. The video signal resolution described in the video component descriptor set for each program is referred to. The operation control unit 166 is a display that allows the display unit 14 to display the resolution of the video to be provided among the programs scheduled to be provided on the most recent channel selected by the channel selection processing unit 1642 so far. A program having a possible resolution is searched as a displayable program. The most recent channel is a channel through which the broadcast receiving unit 11 receives a broadcast signal, that is, a channel on which a program on which the video is to be displayed is broadcast if the resolution is a displayable resolution. is there. The displayable program scheduled to be broadcast, which is a search target, is, for example, a displayable program in which a video having a displayable resolution is provided among programs whose broadcasting is started after that time, and the broadcast start time Is the earliest program. The search target program is not necessarily limited to one, and may be a plurality of displayable programs whose broadcast starts within a predetermined time (for example, 1 to 3 hours) from that point.

  The operation control unit 166 outputs reception reservation display information indicating a reception reservation related to the searched displayable program to the display unit 14. The reception reservation display information is information for guiding at least reception reservation of a displayable program. In other words, the reception reservation display information includes a question regarding the necessity of reception reservation for a displayable program. A viewer who has viewed the reception reservation display information is prompted to make a reception reservation by operating the question. The operation control unit 166 receives the displayable program when an operation signal instructing the reception reservation is input from the operation input unit 12 within a predetermined time (for example, 1 to 3 minutes) from the output start of the reception reservation display information. Make reservation settings for. When the operation signal instructing the reception reservation is not input within a predetermined time (for example, 1 to 3 minutes) from the output start of the reception reservation display information, the operation control unit 166 stops the output of the reception reservation display information, and the operation mode Is changed from viewing mode to energy saving mode.

  When the reservation setting is performed, the operation control unit 166 stands by until the program start time of the displayable program is reached. Thereafter, when the operation mode at that time is the energy saving mode, the operation control unit 166 changes the operation mode from the energy saving mode to the viewing mode. Here, the operation control unit 166 restarts the video processing unit 1643 to decode the video data and output the video signal obtained by the decoding to the display unit 14. Thereby, the video of the displayable program is displayed on the display unit 14.

  When the operation mode at that time is the viewing mode and another channel is selected, the operation control unit 166 sets the displayable program as a channel for receiving the broadcast signal in the broadcast receiving unit 11. Notify the channel on which is provided. The broadcast receiving unit 11 receives a broadcast signal on the notified channel. Accordingly, the video of the displayable program provided on the notified channel is displayed on the display unit 14.

  Next, an example of reception reservation display information will be described. FIG. 28 is a diagram showing an example of reception reservation display information according to the present embodiment. In the example shown in FIG. 28, the reception reservation display information includes a message for inquiring the viewer about the broadcast start time of the displayable program whose broadcast start time is the earliest scheduled broadcast from that point, the program name, and the necessity of reservation. Specifically, "the next broadcast, 11: 00" Hello Japan "Are you sure that you want this program is available for viewing reservation? A message “Yes No” is displayed on the display unit 14. The reception reservation display information is displayed when it is determined that the resolution of the video provided by the program “8K sports” broadcast at that time is a display-impossible resolution. And, "Hello Japan" is, out of the program scheduled to be broadcast on the channel program "8K sports" will be broadcast as shown in FIG. 22, a resolution is displayable resolution, in a program that the earliest broadcasting is started is there.

When a character of "YES" by operation signal within a predetermined time from the start of the display of the received reservation display information is instructed, the operation control unit 166 erases the received reservation indication information is displayable program "Hello Japan" Set reception reservation. Operation control unit 166, when the current time becomes 11:00, received a start of the reception signal program received reservation is set "Hi Japan" is provided to display the video image of the program on the display unit 14. When the character “No” is indicated by the operation signal or when the operation signal is not input within a predetermined time from the start of display of the reception reservation display information, the operation control unit 166 erases the display of the reception reservation display information, Change the operation mode from viewing mode to energy saving mode.
The message “This broadcast cannot be viewed” is a non-displayable message that is displayed when the resolution of the video of the program broadcast at that time is an undisplayable resolution. “Ch1” indicates the channel number of the channel currently selected.

  Next, the reception process according to the present embodiment will be described. FIG. 29 is a flowchart showing a reception process according to this embodiment. The process shown in FIG. 29 includes the processes of steps S101 to S103, S105, and S141 to S145. In the process shown in FIG. 29, when it is determined that the video resolution is a non-displayable resolution (NO in step S103), the process proceeds to step S141.

(Step S141) The operation control unit 166 causes the video processing unit 1643 to stop decoding the video data, and causes the display unit 14 to display a display impossible message. The processing in step S141 may be the same as the processing in step S104. . Thereafter, the process proceeds to step S142.
(Step S142) The operation control unit 166 refers to the MH-EIT and searches for a displayable program in which a video having a displayable resolution is provided from the programs scheduled to be broadcast on the selected channel. Thereafter, the process proceeds to step S143.
(Step S143) The operation control unit 166 displays the reception reservation display information on the display unit 14, and after the display, displays an operation signal input from the operation input unit 12 regarding the necessity of reception reservation of the displayable program within a predetermined time. I wait. When an operation signal instructing reception reservation is input (YES in step S143), the process proceeds to step S144. When the operation signal instructing the reception reservation is not input (NO in step S143), the process proceeds to step S145.

(Step S144) The operation control unit 166 sets a reception reservation for a displayable program. Thereafter, the process proceeds to step S145.
(Step S145) The operation control unit 166 changes the operation mode from the viewing mode to the energy saving mode, and causes the video processing unit 1643 to stop decoding the video data. Then, it returns to step S101. However, when the reception reservation is set, the operation control unit 166 receives the broadcast signal of the channel through which the displayable program is broadcast when the current time is the broadcast start time of the displayable program. 11 starts. In addition, the operation control unit 166 starts decoding the received video data in the video processing unit 1643 and starts outputting the video signal obtained by the decoding to the display unit 14.

  In the above-described example, the operation control unit 166 changes the operation mode to the energy saving mode when the operation signal instructing the reception reservation is not input within a predetermined time after the display of the reception reservation display information is started. However, it is not limited to this. In that case, the operation control unit 166 refers to the MH-EIT, identifies a program provided with a video whose resolution is displayable resolution among programs broadcast at that time, and broadcasts the program. Identify one of your channels. Then, the operation control unit 166 instructs the broadcast receiving unit 11 to receive a broadcast signal on the specified channel. As a result, an image whose resolution is a displayable resolution is displayed while the operation mode is maintained in the viewing mode. In this case, the operation control unit 166 may stop supplying power to each component of the receiving device 10 (power off). When the reception reservation is set before the power supply is stopped, the operation control unit 166 restarts the power supply to each component of the receiving apparatus 10 (power ON), and then a displayable program is displayed. The broadcast receiving unit 11 is instructed to start receiving a broadcast signal of a broadcast channel, and the video processing unit 1643 is instructed to start decoding video data and output the video signal obtained by decoding to the display unit 14.

  In the above-described example, when the reception reservation is set, the operation control unit 166 displays the video of the broadcast program on the display unit 14 as an example. However, the present invention is not limited to this. The operation control unit 166 may store (record) the video data of the program in the storage unit 15 in place of the video display or in combination with the video display.

As described above, in the receiving device 10 according to the present embodiment, when the video resolution is an undisplayable resolution, the operation control unit 166 transmits video from a program scheduled to be broadcast on a channel on which the video program is broadcast. A displayable program whose resolution is the displayable resolution is searched. Then, the operation control unit 166 causes the display unit 14 to display guidance information related to the reception reservation of the searched displayable program.
With this configuration, the viewer is guided to a displayable program that provides a video with a resolution that can be displayed from a program that is scheduled to be broadcast on a channel that broadcasts a program that provides a video with a resolution that cannot be displayed. The reception reservation is prompted. Therefore, the viewer's satisfaction can be improved by receiving the program at the viewer's will. In addition, since the reception of the program on the selected channel is promoted, a decrease in the audience rating of the channel due to the broadcast of the program providing the video whose resolution is not displayable can be suppressed.

  In the above-described embodiment, the case where the MMT system is adopted as the media transport system for digital broadcasting in the broadcasting system 1 has been described. However, the present invention is not limited to the MMT system. For example, MPEG-2 TS (Moving Picture Experts Group-2 Transport Stream) method or RTP (Real-time Transport Protocol) method may be adopted as the media transport method.

  In the above-described embodiment, the case where the program arrangement information i2 and the program configuration information i3 are carried by a broadcast signal multiplexed with the program data i1 has been described. However, the program arrangement information i2 and the program configuration information i3 are transmitted. The method to be performed is not limited to the method described above. For example, the receiving device 10 may acquire the program arrangement information i2 and the program configuration information i3 through communication with a server device connected to the communication transmission line NT.

In the above-described embodiment, the case where the receiving device 10 is mainly a television receiver is taken as an example. However, the configuration is not limited to the above-described configuration. For example, the receiving apparatus 10 according to each embodiment may be detachable as long as one or both of the loudspeaker 13 and the display unit 14 can transmit and receive various signals. When the display unit 14 that is detachable from the receiving device 10 is connected to the receiving device 10, the control unit 16 acquires the device information set in the display unit 14, and based on the acquired device information, the display unit 14. The resolution may be determined. For example, when the device information includes information indicating the resolution, the control unit 16 adopts the resolution. When the device information indicates the model of the display unit 14, the control unit 16 refers to the resolution data stored in advance in the storage unit 15 and determines the resolution corresponding to the model number indicated by the device information. The resolution data is data indicating the resolution for each model.
In the receiving device 10 according to the third embodiment, one or both of the communication unit 17 and the data input / output unit 18 may be omitted.

  For example, a part of the receiving device 10, for example, the control unit 16, a program for realizing processing by the display processing unit 164, the resolution determination unit 165, and the operation control unit 166 included in the control unit 16 can be read by a computer. The above-described various processes may be performed by recording in a recording medium, causing the computer system to read and execute the program recorded in the recording medium. Here, the “computer system” may include an OS and hardware such as peripheral devices. Further, the “computer system” includes a homepage providing environment (or display environment) if a WWW system is used. The “computer-readable recording medium” means a flexible disk, a magneto-optical disk, a ROM, a writable nonvolatile memory such as a flash memory, a portable medium such as a CD-ROM, a hard disk built in a computer system, etc. This is a storage device.

  Further, the “computer-readable recording medium” refers to a volatile memory (for example, DRAM (in DRAM) in a computer system that becomes a server or a client when a program is transmitted through a network such as the Internet or a communication line such as a telephone line. Dynamic Random Access Memory)) that holds a program for a certain period of time is also included. The program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the “transmission medium” for transmitting the program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line. The program may be for realizing a part of the functions described above. Furthermore, what implement | achieves the function mentioned above in combination with the program already recorded on the computer system, what is called a difference file (difference program) may be sufficient.

  A part of the receiving device 10, for example, the control unit 16, the display processing unit 164 included in the control unit 16, the resolution determination unit 165, the operation control unit 166, or the whole is realized as an integrated circuit such as an LSI (Large Scale Integration). May be. Each component in the receiving apparatus 10 of the present embodiment may be individually made into a processor, or a part or all of them may be integrated into a processor. Further, the method of circuit integration is not limited to LSI, and may be realized by a dedicated circuit or a general-purpose processor. In addition, when an integrated circuit technology that replaces LSI appears due to the advancement of semiconductor technology, an integrated circuit based on the technology may be used.

In addition, this invention can be implemented also in the following aspect.
(1) When a receiving unit that receives a broadcast signal of a program including video and the resolution of the video is a non-displayable resolution at which the video cannot be displayed by the display unit, the display state of the display unit is changed to a predetermined display state. And a display processing unit configured to display the video on the display unit when the resolution of the video is a displayable resolution at which the display unit can display the video.

(2) When the resolution of the video is the non-displayable resolution, the display processing unit is operated in a power consumption reduction mode that is an operation mode in which power consumption is lower than predetermined power consumption, and the display processing unit is operated according to an operation input. The receiving device according to (1), further comprising: an operation control unit that determines an end time of the power consumption reduction mode.

(3) The operation control unit turns on the light emitting unit corresponding to the resolution of the video in a different manner depending on whether the resolution of the video is the non-displayable resolution or the displayable resolution (2 ) Receiver.

(4) When the resolution of the video is the non-displayable resolution, the operation control unit is a displayable program in which the video resolution is the displayable resolution from a program scheduled to be broadcast in a channel on which the video program is broadcast. The receiving apparatus according to (2) or (3), wherein the display section displays guidance information relating to reception reservation of the displayable program.

(5) Link information relating to other content corresponding to the program being received is acquired from program arrangement information relating to the program being broadcast or scheduled to be broadcast, and the video resolution is the non-displayable resolution. In some cases, the receiving device according to any one of (1) to (4), further including an operation control unit that causes the receiving unit to receive the other content.

(6) The program arrangement information includes program information for each program, the program information for each program is arranged based on the broadcast time and channel of the program, and at least a part of the link information is being received. (5) A receiving apparatus comprising: a program guide generating unit that generates an electronic program guide that is displayed in a display area for displaying program information.

(7) The receiving device according to (5) or (6), wherein the operation control unit determines whether or not the other content can be used.

(8) A receiving method in a receiving apparatus, in which a receiving process of receiving a broadcast signal of a program including a video, and the resolution of the video is a non-displayable resolution at which the video cannot be displayed by the display unit, A display processing step of controlling the display state to a predetermined display state and displaying the video on the display unit when the resolution of the video is a displayable resolution at which the display unit can display the video. Reception method.

(9) When the resolution of the video is a non-displayable resolution at which the video cannot be displayed on the computer of a receiving device including a receiving unit that receives a broadcast signal of a program including video, the display state of the display Is controlled to a predetermined display state, and when the resolution of the video is a displayable resolution capable of displaying the video on the display unit, a program for executing a display processing step of displaying the video on the display unit .

  The embodiment of the present invention has been described above with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes various modifications within the scope of the present invention. It is.

  DESCRIPTION OF SYMBOLS 1 ... Broadcasting system, 10 ... Receiver, 11 ... Broadcast receiving part, 12 ... Operation input part, 13 ... Loudspeaker part, 14 ... Display part, 15 ... Memory | storage part, 16 ... Control part, 161 ... Demodulation part, 162 ... Separation 163 ... Audio processing unit, 164 ... Display processing unit, 1641 ... Program guide generation unit, 1642 ... Channel selection processing unit, 1643 ... Video processing unit, 165 ... Resolution determination unit, 166 ... Operation control unit, 17 ... Communication unit , 18 ... data input / output unit, 20 ... transmitting device, 30 ... display device

Claims (9)

A receiving unit for receiving a broadcast signal of a program including video;
If the resolution of the video is a non-displayable resolution at which the display unit cannot display the video, the display state of the display unit is controlled to a predetermined display state,
When the resolution of the video is a displayable resolution at which the display unit can display the video, a display processing unit that displays the video on the display unit;
A receiving device. When the resolution of the video is the non-displayable resolution, the display processing unit is operated in a power consumption reduction mode that is an operation mode in which power consumption is lower than predetermined power consumption, and the power consumption reduction is performed according to an operation input. Operation control unit that determines the end time of the mode,
The receiving device according to claim 1, further comprising: The operation controller is
The receiving device according to claim 2, wherein a light emitting unit corresponding to the resolution of the video is turned on in a different manner depending on whether the resolution of the video is the non-displayable resolution or the displayable resolution. The operation controller is
When the resolution of the video is the non-displayable resolution, a searchable program whose video resolution is the displayable resolution is searched from a program scheduled to be broadcast in a channel on which the video program is broadcast, and the displayable program The receiving apparatus according to any one of claims 2 and 3, wherein guide information related to reception reservation is displayed on the display unit. When link information related to other content corresponding to the program being received is acquired from the program arrangement information related to the program being broadcast or scheduled to be broadcast, and the resolution of the video is the non-displayable resolution, An operation control unit for causing the receiving unit to receive the other content;
The receiving device according to any one of claims 1 to 4, further comprising: The program arrangement information includes program information for each program,
A program guide for generating an electronic program guide in which program information for each program is arranged based on a broadcast time and a channel of the program, and at least a part of the link information is displayed in a display area for displaying program information of the program being received. A generator,
The receiving device according to claim 5. The receiving device according to claim 5 or 6, wherein the operation control unit determines whether or not the other content can be used. A receiving method in a receiving device,
A receiving process for receiving a broadcast signal of a program including video;
If the resolution of the video is a non-displayable resolution at which the display unit cannot display the video, the display state of the display unit is controlled to a predetermined display state,
When the resolution of the video is a displayable resolution at which the display unit can display the video, a display process for displaying the video on the display unit;
Receiving method. In a computer of a receiving device including a receiving unit that receives a broadcast signal of a program including video,
If the resolution of the video is a non-displayable resolution at which the display unit cannot display the video, the display state of the display unit is controlled to a predetermined display state,
A display processing step of displaying the video on the display unit when the video resolution is a displayable resolution at which the display unit can display the video;
A program for running

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