JP2003174377A - Information distribution system and reception / presentation device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] An information distribution system and a reception / presentation device therefor, which reduce the burden of operation on viewers whose visual and limb operations are restricted, such as while driving a car, at an optimal timing. The optimum broadcast service content desired by the viewer is automatically selected and presented. SOLUTION: A content transmission device 10 multiplexes broadcast service content and metadata indicating its attribute, and simultaneously transmits them at the same time. Content reception / presentation device 2
0 indicates that the broadcast service content and its metadata are received and stored from a plurality of transmission channels, and that the plurality of transmitted or stored broadcast service contents are presented by the automatic selection and presentation program 304 for each viewer. Is calculated, and a plurality of broadcast service contents are selected and presented continuously according to the index. Further, the selection tendency of the automatic selection and presentation program 304 is displayed by a character.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information distribution system and a reception / presentation device for distributing a digital information broadcasting service and multimedia data through a digital broadcasting line, an internet communication line, or the like. The present invention relates to an information distribution system and a reception / presentation device for the information distribution system, which can be suitably used for reception / presentation of contents.

[0002] Here, the content is multimedia data in which files of various kinds of visual or auditory information for a viewer are combined, and includes stream data as a file, and usually, the data is once once received on the receiving side. This is the information that is presented after being accumulated. On the other hand, usually
Information presented to the viewer in real time without accumulating data is referred to as a broadcast service, but without distinguishing both, it is also referred to simply as content or distribution information including the broadcast service.

The broadcast service is a combination of stream data that is logically grouped out of stream data that is packetized and multiplexed on a physically divided line (transmission channel). It may be called a service channel, which is synonymous with broadcasting service.
The content is mainly referred to as a broadcasting service, and the transmission is referred to as a service channel.

Broadcast services are roughly divided into video / audio services and data services. The video / audio service is a broadcasting service that always includes either a video stream or an audio stream, and may include a data stream (streamed for transmitting content) in some cases. A data service is a combination of data streams only.

[0005]

2. Description of the Related Art Conventionally, in digital broadcasting, viewers have designated and viewed desired broadcasting services and contents one by one. Although it was possible for the viewer to set to automatically present or switch to the broadcasting service or contents that he / she wants to watch at a certain time, those broadcasting services or contents can be individually set by the viewer. It had to be specified and set in advance.
Especially when a viewer who is driving a car views a server-type digital broadcast, the viewer concentrates on driving and performs operations to specify his / her preferred broadcasting service and contents, while his / her visual and limb operations are restricted. I had to.

On the other hand, Japanese Patent Laid-Open No. 2001-127656
The publication discloses an invention that presents a broadcasting program suitable for a traveling position of a vehicle in a receiver mounted on a moving vehicle. The present invention adds a metadata indicating the type of content and time and place where the content is valid to the broadcast program, and provides a broadcast program in which the current traveling position and time of the vehicle and the condition of the metadata match. It is to automatically select and present.

However, according to the above invention, a transmission channel or a service channel is automatically selected, or a plurality of broadcast services or contents are automatically selected and stored.
It does not automatically select and store broadcasting services and contents of service channels other than the designated service channel, and also presents multiple broadcasting services and contents at the same time, and while presenting them, broadcasts other contents behind the scenes. No service or content is automatically selected and stored, and nothing is presented if there is no broadcasting program that strictly satisfies the selection condition.

[0008]

Broadcast services and contents are viewed with another motivation, in addition to the case where the user wants to watch video or audio of desired desired kind of useful information or entertainment information without fail. In many cases. For example, there is a presentation for so-called “while watching”, in which some kind of video or audio is constantly played as the background.

However, it goes without saying that even if some video / audio is constantly being “viewed”, it is preferable that the video / audio be as much as possible to the taste of the viewer. In the conventional form of viewing broadcast services and contents, many viewers with different tastes watch a wide variety of broadcast services and contents, and the viewer selects each one in order to switch to the desired broadcast service or contents. The broadcasting service and contents are interrupted during this period.

Further, it is preferable that the viewer can view his / her favorite video / audio at a desired time. Further, even when audio-only contents such as radio broadcasts are presented, it is possible to provide more usefulness and amusement if it is possible to simultaneously present other video contents such as text broadcasts. . For example, it is required to listen to one's favorite music while watching the video of desired traffic information, and at the same time to store other contents behind it.

Therefore, the present invention is intended for viewers whose visual and limb operations are restricted, such as when driving a car, or for viewers who need to concentrate on other tasks. It is an object of the present invention to provide a content distribution system and a content reception / presentation apparatus for reducing the burden on the user and always automatically selecting and presenting the optimum broadcast service or content desired by the viewer at the optimum timing.

When a plurality of automatic selection / presentation means are provided so that a plurality of viewers can automatically select and present desired broadcast service contents, each viewer clearly defines each automatic selection / presentation means. Content that is identified and displayed by a user interface that allows each viewer to easily confirm the operation and state of the automatic selection / presentation means, and on top of that, the change in the user interface display can be viewed and enjoyed by the viewer. A reception and presentation device is provided.

[0013]

The information distribution system of the present invention comprises: (1) a plurality of types of distribution information and metadata representing attributes of the distribution information are multiplexed, and a plurality of reception / presentation devices are provided by a plurality of transmission channels. A receiving device that receives the distribution information from a plurality of transmission channels and presents the distribution information, and a means for receiving and storing the distribution information and the metadata; , Priority evaluation means for evaluating the priority by calculating an index indicating the priority of each presentation of a plurality of types of delivery information transmitted or accumulated, and other delivery in parallel with the presentation of the delivery information Simultaneous processing means for receiving and accumulating information, and obtaining the presentation time of each piece of distribution information from the metadata, based on the presentation time and the priority, the distribution information with a high priority is given priority and continues. It is obtained by a continuous presentation means for performing a process of presenting the distribution information.

Further, the reception / presentation apparatus of the present invention (2) receives a plurality of types of distribution information and metadata representing attributes of the distribution information from a plurality of transmission channels, and the metadata, the apparatus state information, and the storage medium. In the reception and presentation device that presents the distribution information based on the parameter information recorded in, the storage unit that accumulates the distribution information and the metadata, and the plurality of distribution information that is transmitted or accumulated. Priority evaluation means for calculating an index indicating the priority of presentation to evaluate the priority, simultaneous processing means for receiving and storing other delivery information in parallel with presentation of the delivery information, and each of the metadata from the metadata. Continuous presentation means for acquiring a presentation time of the distribution information, and based on the presentation time and the priority, performing a process of giving priority to the distribution information having a high priority and continuously presenting the distribution information. Those were.

Further, (3) a means for selecting one or a plurality of pieces of distribution information other than the distribution information being presented as alternative presentation candidates based on the index of the priority evaluation means, and a switching presentation means for the alternative presentation candidates. It is equipped with and.

(4) A plurality of types of distribution information selection / presentation programs including the priority evaluation unit and the continuous presentation unit, each of which gives different priority to the distribution information, are provided. Is provided with a program identification display means for displaying each of them by a user interface of a display form that is visually or acoustically different, and a program selection means for selecting one of the plurality of distribution information selection / presentation programs.

(5) The distribution information selection / presentation program stores a selection tendency storage means for storing information on the genre of the distribution information based on the distribution information presentation result.
Automatic selection learning means for changing the priority selection in the distribution information selection / presentation program based on the change of the selection tendency, and visually or audibly changing the display form of the distribution information selection / presentation program based on the change of the selection tendency. And a program display form changing means.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION A content distribution system of the present invention will be described with reference to FIG. The content distribution system of the present invention is roughly divided into a content transmission device 10 and a content reception / presentation device 20. First, the content transmission device 10 will be described. The content provider cooperates with the content creator to create content using the content generation device 102.

The created content is stored in the content / metadata storage device 104. The contents include, for example, Java application games, digital broadcast program arrangement information files, HTML files, and BML.
(Broadcast Markup Language) files, and HTML documents including PNG images and JPEG images that serve as reference data thereof, BML documents, and combinations thereof are included. It also includes a combination of a weather information application of a Java application and a weather data file of an XML file for presentation.

The content provider generates content metadata by the metadata generation device 103 based on the created content. What is content metadata?
The contents and attributes of the contents are represented in a uniform format as in the example shown in FIG. Content and content metadata are stored in the content / metadata storage device 104 as a pair and managed.

As shown in FIG. 5B, a directory is constructed for each content ID for identifying the content, and the file to be activated first and the metadata representing the content are designated by a specific file name under the directory. The easiest to accumulate. Here, the method of specifying the file type by the extension is adopted, but other methods such as MIME-Ty are used.
A method of recognizing with pe can also be used.

Next, content transmission will be described.
The content is multiplexed and transmitted together with the broadcasting service according to the transmission program 105 managed by the content provider or according to the transmission request from the content reception / storage presentation device 20. The transmission program 105 multiplexes a plurality of contents to form a stream, and forms a service channel by combining with a stream including an audio / video stream. Content metadata is embedded in the service channel along with the content.

MPEG-2 Video stream and MPEG-2 are provided as video / audio services of broadcasting service.
Examples include services that combine AAC streams, and video and audio services for BS digital broadcasting that combine BML documents. In addition, RTSP, which is a real-time one-way communication protocol on IP (Internet Protocol) over a two-way communication line such as the Internet
It is also possible to present video / audio services and data services using (Real Time Stream Protocol) or the like.

The transmission program 105 further sends PSI (Program Specific Information) to the service channel.
) And SI (Service Information), so-called program arrangement information and service metadata are multiplexed. A transmission channel is formed by multiplexing a plurality of service channels with program arrangement information and service metadata. The service metadata is the content and attributes of the broadcasting service expressed in a uniform format. In this way, the transmission channel signal in which a large number of broadcasting services and contents are multiplexed is transmitted from the contents transmission device 10.

Here, the hierarchical relationship between the broadcasting service and the contents is organized. FIG. 3 is a diagram showing a hierarchical relationship between the broadcasting service and contents of the present invention. The content distribution system of the present invention may use either a broadcasting line or a communication line, or these lines may be combined to form a content distribution system network. For example, the network may be a combination of an internet communication network and a satellite digital audio broadcasting network.

A plurality of transmission channels are formed in the content distribution system network, and selective reception of the transmission channels can be received by tuning the digital broadcasting receiver or connecting to the Internet network by dialing. The number of transmission channels that can be selected by the receiver or tuner is limited, particularly when receiving radio waves, but the present invention is to automatically and efficiently select the optimal transmission channel from a large number of transmission channels. It has a feature.

A plurality of service channels are multiplexed on the transmission channel, and service metadata indicating the content and type of each service is also multiplexed. The service metadata is transmitted by including information indicating attributes and contents of all broadcasting services in all transmission channels. By doing so, it becomes possible to obtain the metadata of the broadcast service included in the transmission channel that is not currently received and add the broadcast service of the transmission channel to the candidates for automatic selection.

The service channel consists of a plurality of streams. The stream includes a video / audio stream and a data stream, of which a plurality of contents are multiplexed in the data stream. Content metadata is added to the content and multiplexed into the stream. The content consists of multiple elements. Elements are in file format.

Next, the content reception / presentation apparatus 20 of FIG.
Will be described. The content reception / presentation apparatus 20 selects and receives a wired or wireless transmission channel, performs a decoding process of a physical layer signal of a communication line or a broadcast line with a transmission decoding processor 201, and digitizes the transmission channel as a baseband signal. The signal is passed to the packet separator 202. The transmission / decoding processor 201 selects and decodes a transmission channel to be received, for example, like radio frequency tuning of digital broadcasting, according to a command of the automatic selection presentation program 304 for selecting distribution information. In this specification, the automatic selection / presentation program is also referred to as a distribution information selection / presentation program.

The packet separator 202 separates the service channel signal, the program arrangement information, and the service metadata from the input transmission channel signal. Of these, the program arrangement information and the service metadata are input to the automatic selection / presentation program 304. The service channel signal is further separated into an audio stream, a video stream and a data stream. When presenting the audio stream and the video stream immediately, the audio decoder 20 is used.
3 and the video decoder 204, but when they are once stored and presented later, they are stored in the content / metadata storage device 211.

The data stream is once decrypted into content and content metadata and then once
It is stored in the metadata storage device 211. The packet separator 202 receives the stream, the program arrangement information, the service metadata, the content, and the content metadata from the audio decoder 203, the video decoder 204, and the content / metadata storage device 211 according to an instruction from the automatic selection presentation program 304. And automatic selection presentation program 3
Variably assigned to 04.

Audio decoder 203 and video decoder 20
4 decodes the audio stream and the video stream, respectively, and the audio and the video are output from the speaker 40 and the monitor 50 through the switch 205 and the synthesizer 206, respectively. The audio decoder 203 and the video decoder 204 are
For example, it is configured using an LSI and is used when high-speed decoding of an audio stream and a video stream is required. When decoding a low-speed audio stream and video stream, the decoding may be performed by software processing. The audio decoder 203 and the video decoder 2
04 changes the content of decoding by the command from the automatic selection presentation program 304.

The switch 205 and the synthesizer 206 switch and synthesize the audio and video input from the audio decoder 203 and the video decoder 204 and the audio or video decoded by the program using the processor 212 and the memory 300. And outputs to the speaker 40 and the monitor 50. The difference between switching and synthesizing is not particularly special, and both may be a switching device or a synthesizing device. The switching unit 205 and the synthesizing unit 206 change the contents to be switched and synthesized according to a command from the automatic selection presentation program 304.

The speaker 40 and the monitor 50 are connected to the switch 20.
5 or audio and video switched or synthesized by the synthesizer 206 are presented to the viewer. The viewer views the broadcasting service and the content from the speaker 40 and the monitor 50 with the sound and the video.

Next, the metadata of the broadcasting service / content will be described. As described above, the metadata of the present invention includes metadata indicating the contents of broadcasting service and metadata indicating the contents of contents, which are treated in a unified manner, and the respective metadata are compared and evaluated for broadcasting. Automatic selection of service contents.

The types of metadata information in the present invention are as follows. (1) Time information, (2) Point information, (3) Transmission line status information, (4)
Information on the state of the moving body, (5) information on genre (type), (6) information on devices required for selective reception, (7) information on devices required for selective presentation.

(1) The time-related information includes the time to be presented, the time interval for presentation, the time required for presentation, and the like. For the time to be presented, describe the year, month, hour, minute, and second at which the relevant broadcasting service / content should be presented, and recommend one presentation only and one presentation at regular intervals such as the number of minutes per hour. There are cases. Information may be added whether or not the timing of the presentation time should be strictly adhered to, or whether a slight error is allowed. By the way, since the broadcasting service is usually presented immediately, it is not necessary to add this information to the broadcasting service metadata.

The presentation time interval is information indicating the time interval at which the broadcasting service content should be presented. This is information for automatically selecting and presenting the same broadcasting service content repeatedly. The time required for presentation is information representing the presentation time from the start to the end of the broadcast service content. Broadcast service contents are automatically selected based on this time and the presentable time. Also,
Next, this time information is used to determine the timing of the automatic selection and presentation determination.

(2) The information on the spot is information on the spot suitable for presenting the broadcasting service contents. Further, as additional information, information for discriminating between designation of a pinpoint point and designation of a wide area point may be added. (3) Information about the transmission line status is
This is information about the connection state of each transmission line when presenting content. If the transmission path is a radio wave propagation path, it is information regarding the reception state of radio waves.

(4) The information on the state of the moving body is the information on the state of the moving body apparatus detected by various sensors attached to the apparatus when the content receiving / presenting apparatus is mounted / connected to the moving body. The optimum broadcast service content is automatically selected and presented according to the state of the mobile device based on the information. If the moving body is a car, whether it should be presented when the moving body is running or when it is stopped, whether it is presented at how many kilometers per hour, sudden start or sudden braking Information such as whether or not to present even during operation can be described.

(5) Information on the genre (type)
This is information indicating the genre to which the broadcasting service / content belongs. It is used for preferentially automatically presenting broadcast service contents of a genre that viewers prefer. (6) The information about the device required for selective reception is information indicating the device required for receiving the broadcast service content. When receiving wirelessly, this information is necessary because the antenna, tuner, and decoding circuit required for reception cannot be received unless the antenna is available. (7) The information related to the device required to selectively present is the information indicating the device required to present the broadcasting service content. This information is necessary because the audio decoder, the video decoder, the speaker, or the monitor required for the presentation cannot be presented unless it is available.

Next, a specific data structure example of the service metadata and the content metadata will be shown. In the case of digital broadcasting, the service metadata newly defines a table as one of program arrangement information. In the present invention, this table is called a service metadata table (SMT), and its structure is shown in FIG. The service metadata table (SMT) is used to transmit metadata of all broadcasting services of all transmission channels. By doing this,
It is possible to recognize the broadcast service of the transmission channel which is not currently received, and it is possible to automatically select the broadcast service from among them.

The higher the transmission frequency of the service metadata table (SMT), the quicker the automatic selection of the optimum broadcasting service can be made, but the automatic selection is not an essential function for viewing the broadcasting service itself. So it doesn't have to be that frequent. Further, the service metadata table (SMT) having the same structure can be transmitted not only by digital broadcasting but also by transmission through a communication line.

The content metadata can be defined by the XML description language. The structure of the content metadata file is shown in FIG. The content metadata file describes only the metadata of the corresponding content. The service metadata and the content metadata should normally be delivered together with the broadcast service and the content, but they may be delivered with different delivery times and transmission channels. In addition, only the metadata is transmitted via the bidirectional communication protocol (for example, TCP / I) on the bidirectional communication line.
P).

Next, the device information will be described. In the embodiment of the present invention, the device information is stored in the device information storage unit 301 of the memory 300, but in some cases, it may be stored in the parameter 306 in the automatic selection program 304. The device information is as follows. (I) Time and history
Schedule information, (ii) point information, (iii) transmission line state information, (iv) mobile state information, (v) viewer genre preference frequency information, (vi) receiving device information ,
(Vii) Presentation device information.

(I) The time and history / schedule information includes the current time, the presentation history, and the available presentation time. The current time is current time information acquired by the device state detection device 209. The presentation history is history information of the recently presented broadcasting service / content, and the automatic selection presentation program 30
4, the broadcasting service contents presented so far are retained as a history. Available time is
It is the remaining free time information allowed from the current time to the automatic selection presentation, and when the presentation reservation is set by another program, the information is acquired from the program and calculated.

(Ii) The point information is the current position / point information of the receiver. It is acquired from the external device state detection device 210 and stored by a position information service such as GPS or PHS. The information to be accumulated is generally latitude and longitude, but a wide area name may be specified from the information and accumulated.

(Iii) The transmission path status information is information representing the current connection status of each transmission path. When the transmission path is a radio wave propagation path, it is information indicating the current radio wave reception state, and is acquired from the transmission / decoding processor 201. (Iv) The information on the state of the moving body is information indicating the current state of the moving body when the device is mounted on the moving body. It is acquired from the external device state detection device 210. When the moving body is an automobile, it is possible to accumulate whether the vehicle is running, stopped, or parked from the side brake and vehicle speed pulse, and further obtain and accumulate the current speed and acceleration.

(V) The information on the degree of preference of the viewer's genre is information indicating which genre of the broadcast service contents the viewer likes. The panel button / remote control / speech recognition input unit 207 acquires the viewer's reaction to the broadcast service / content automatically selected / presented by the automatic selection / presentation program 304 (whether the user listened as it is or switched to another one), and Accumulate and accumulate results. FIG. 6 shows an example showing the frequency of the viewer's liking for each genre. Note that this information may be stored as the parameter 306 of the automatic selection program 304.

(Vi) The information of the receiving device indicates which transmission channel the device related to the receiving is currently assigned to the receiving. When there are a plurality of such devices, information indicating whether the device is currently in use or in an empty state is acquired for each device. The information is acquired from the transmission decoding processor 201. (Vii) The presentation device information represents what state the device associated with the presentation is currently in. Information on whether the audio decoder 203, the video decoder 204, the speaker 40, or the monitor 50 is in use or vacant is acquired.

Next, the automatic selection / presentation program 304 will be described. The automatic selection presentation program 304 includes an automatic selection presentation algorithm 305 and parameters 306. Details of the automatic selection / presentation algorithm 305 will be described later. The parameter 306 is a variable that supports the automatic selection presentation program 304. Although it has a role similar to that of the device information storage unit 301, it is better to store it as a parameter 306 particularly regarding information about the degree of preference of the viewer's genre.

The processing flow of the automatic selection and presentation program will be described with reference to FIG. The automatic selection / presentation program 304 is activated by the panel button / remote control / voice recognition input unit 20.
It is activated by an instruction from the viewer or an instruction from another program (7) (S100). First, the automatic selection / presentation program 304 acquires all service metadata currently transmitted from the packet separator 202, and all content metadata currently stored from the content metadata storage device 211. Is acquired (S101).

Next, the current device information is acquired from the information of the device information storage unit 301 and the parameter 306 of the automatic selection presentation program 304 (S102). Next, the initial value (n
= 0, t = 10) is set (S103). Next, a list of candidate service contents to be automatically selected is generated (S104). Here, service contents that cannot be automatically selected may be removed from the list, and instead of selecting all service contents as candidates, select an appropriate number of service contents of each genre. It may be a candidate.

Next, as shown in FIG. 7, the automatic selection presentation algorithm 305 is used to compare and refer to the metadata of each broadcasting service / content that is a candidate for automatic selection and the device information, and then the broadcasting service. An index (score) as to whether or not content should be preferentially presented now is calculated (S105). Automatic selection presentation algorithm 30
5 and the score calculation method will be described later.

Then, it is checked whether or not there is a broadcast service content that can be selected (S106), and if there is a broadcast service content that can be selected, the broadcast service content A with the highest score from the candidate service contents.
Is selected (S108). Here, FIG. 9 shows a specific example of selecting broadcast service contents based on the score. In FIG. 9, the POI (Point Of I
nterest) The score of information content is 90 points, which is the highest score. Therefore, in this case, the content of the POI information is selected.

Next, the device necessary for receiving or presenting the selected broadcast service content A is allocated for the broadcast service content A, and the device information storage unit 301 is updated (S109). Then, the broadcast service content A is presented using the device (S110). The broadcast service contents having the second and subsequent scores calculated in step S105 are not subjected to the presentation process, but are sequentially registered as alternative options as a runner-up candidate group (S112). The presentation of this alternative option will be described later.

The presentation time t of the selected broadcasting service / content A is acquired (S113). Through the above steps, one broadcast service content is selected from a plurality of broadcast service contents and presented. The first selected broadcast service content is presented immediately because the device required for presentation is available.

If the broadcast service content is a broadcast service, a part of the presentation device and the receiving device will be assigned to the broadcast service. For content, only the presentation device is used, and the receiving device is immediately in an empty state. Therefore, other broadcast service content can be automatically selected, received, accumulated, and presented.

After the second lap of the processing steps of the automatic selection / accumulation program 304 (after the second lap, the processing of step S114 results in n> = 1, and in step S111, it is determined whether or not n = 0. It is possible to determine whether or not later), and try to receive, store, and present using the remaining devices except the device for the broadcast service content selected previously.

If the presentation device is available, two or more broadcasting service contents can be presented at the same time. If no presentation device is available, the other devices will
Try to accumulate. Using a vacant receiving device, the transmission channel including the broadcasting service with a high score is automatically selected and received and automatically stored.

In this way, if all devices are used or there is no broadcasting service / content for which reception / storage / presentation can be selected, and the determination in step S106 is negative (N), the automatic selection / presentation program Thirty
4 stops the execution, and temporarily (t
It is interrupted for a second (S107).

The timing of the next automatic selection / presentation determination can be the timing t at which the service / content A initially selected and presented automatically ends (obtained in S113). In addition to this, it is also possible to use a method of performing automatic selection presentation determination at regular time intervals. In this case, if the score of the other broadcast service / content exceeds the score of the currently offered broadcast service / content, apply the method such as interrupting the current presentation and switching the broadcast service / content. can do.

Next, the automatic selection / presentation algorithm 305 will be described with a specific example. FIG. 8 shows an example of evaluating the content by calculating an index (score) indicating whether or not the content should be preferentially presented at present. The device information / parameters shown in FIG. 9A and the metadata shown in FIG. 7B are compared and referenced, and an index (score) is calculated as shown in FIG. To calculate.

In the device information / parameters shown in FIG.
The current time is 11:01. On the other hand, the time at which this content should be presented is 0 minutes every hour according to the metadata in FIG. Since there is only a 1-minute difference, the score added by the time is evaluated as the highest 5 points out of the maximum 5 points.

Further, in the history of recently presented contents in FIG. 9A, there is a history of presenting this content 59 minutes ago, and, on the other hand, as shown in FIG. The time interval to be presented is 60 minutes. Therefore, the automatic selection / presentation algorithm 305 evaluates the additional points as 4 points.

The currently allowed presentation time frame in FIG. 9A is 14 minutes. This is because the viewing reservation of another broadcasting service / content is set by the viewer's manual operation from 11:15, and the broadcasting service / content to be presented at present will be finished within 14 minutes.・ Content must be available. here,
This content is a 2-minute content as shown in FIG. Therefore, the points added by the presentation time frame of this content are 5 points out of 5 points.

Further, the current position of the device is 35 ° north latitude and 140 ° east longitude obtained from the GPS receiver connected to the device as shown in FIG. On the other hand, the metadata describes that this content is for the Kanto region. Therefore, the device information and the metadata match, and the additional points of this content are evaluated as 5 points in this respect.

Further, the current moving speed and acceleration of the device are measured by a speedometer and an acceleration sensor of an automobile equipped with the device as shown in FIG.
Information is obtained that the vehicle keeps running stably with almost no acceleration at km / h. The metadata describes that this content may be presented if the content is stopped or running stably. Therefore, the automatic selection presentation algorithm 305 evaluates the additional points as 5 points in this respect.

Further, as for the genre of the viewer's liking, the POI information is set to the highest by the parameter 306 as shown in FIG. 9A, while this content is the POI information as shown in FIG. is there. Therefore, the automatic selection / presentation algorithm 305 evaluates the additional points as 5 points with respect to this point.

When the respective points are added from the evaluation results of the above items, the present score (score) of this content becomes 29 points. In this specific example, the automatic selection / presentation algorithm 305 calculates the evaluation score for each item and adds the evaluation score, but other than this, a complicated logical expression such as weighting each item is used. It is also possible to calculate the index (score) using.

Next, the presentation of alternative options will be described. In particular, the content reception / presentation device 20 mounted on an automobile or the like is provided with a function key to which an operation command can be arbitrarily assigned. FIG. 10 shows a typical content reception / presentation device 20 installed in an automobile or the like.
2 shows a presentation screen and an operation panel.

As shown in the figure, the presentation screen occupies most of the surface of the content reception / presentation apparatus 20, and function keys F1 to F6 to which selective presentation operations are assigned corresponding to the contents are provided on the lower side of the presentation screen. I have it. The number of function keys on a typical content presentation device is about four.
It is about 8 to 8.

In the present invention, the index (score) of each of the broadcast service contents of the presentation candidates is calculated based on the metadata and the current device information and parameters,
Present broadcasting service content with the highest index. In the case of the example of the score calculation result of the broadcasting service content of each presentation candidate in FIG. 9, the content of the POI information has the highest score, so the content of the POI information is selected and presented.

In addition to the above-mentioned selective presentation, the present invention further provides a broadcasting service which has a high score but is not presented.
It is characterized by presenting alternative options so that the viewer can immediately switch to the content. That is, in the example of the score calculation result of FIG. 9, from the broadcast service contents not presented, the order of the highest score is shown in FIG.
As shown in, the function keys on the left side are sequentially assigned so as to serve as buttons for switching to the broadcast service / content.

By doing so, even if the viewer does not like the automatically selected and presented broadcast service content, from among the candidate broadcast service contents other than the automatically selected and presented broadcast service content. As much as possible, it becomes possible to easily and quickly switch to the broadcasting service / content that suits the viewer's taste.

When there are only about 6 candidate service contents and about 6 function keys corresponding to them as in the examples shown in FIGS. 10 and 9, broadcast in order of score. Even if the service contents are assigned to the function keys, the effect is not so great, but when the number of candidate broadcast service contents becomes as large as 30 or 50, the broadcast service contents in the score order according to the present invention will be displayed. Assignment to function keys has a great effect. In addition, it is also possible to adopt a method in which the viewer reads the name of the broadcast service / content that has become an alternative option, and the voice recognition input unit 207 performs voice recognition to switch the name of the broadcast service / content.

Next, a content reception / presentation device for learning and automatically selecting and presenting the genre of the viewer's favorite broadcast service / content will be described. Although the viewer may directly input the genre of the viewer's favorite broadcast service / content into the parameter 306 of the automatic selection / presentation program 304, it is preferable that the viewer can save the time and effort of the input operation as much as possible. . The present invention reduces the trouble of inputting the genre preferred by the viewer as follows.

First, a constant index (score) for each genre of content is set as a default value in the parameter 306 of the automatic selection / presentation program 304. One default value is sufficient, but the viewer may first select a set of default values that is closest to his or her preference from a plurality of candidates. Here, it is assumed that a default value is set for each genre as shown in FIG. In this case, the genre of the broadcasting service / content metadata is "POI.
If "Information" is written, the genre is added to 3 points by the automatic selection / presentation algorithm 305 for the content.

Here, it is assumed that the viewer views a lot of broadcasting service contents of POI information, steadily adds points, and obtains the highest score among all candidate broadcasting service contents. Then, the broadcast service content of this POI information is selected and presented to the viewer.

However, there are many other broadcasting service contents that are broadcast in parallel at the same time, and the viewer reselects another broadcasting service content instead of the broadcasting service content of the presented POI information. It is also possible to watch. In this way, the viewer may switch to another broadcast service content instead of the broadcast service content of the POI information presented by automatic selection.

Here, it is assumed that the viewer prefers the broadcast service content of the pops to the broadcast service content of the POI information and switches to the broadcast service content of the pops. When such an operation is performed, the parameter 306 changes and the automatic selection presentation algorithm 305
Will give higher ratings to the pop broadcasting service contents than the POI information broadcasting service contents from the next time.

In FIG. 6, the broadcasting service contents of the conventional POI information are evaluated as +3 points, and the pops service
What was evaluated as +2 points for content is newly PO
The service content of I information is evaluated as +2 points, and the service content of pops is evaluated as +3 points. In this way, it becomes easier for viewers to automatically select and present the pop broadcasting service contents that they prefer.

When the viewer switches the broadcast service content presented by the automatic selection to another broadcast service content, the automatic selection presentation algorithm 305 of the automatic selection presentation program 304 causes the broadcast service after the switching from the next time.・ The content is evaluated higher and automatically presented. By the way, when the broadcast service content is switched in this way, the broadcast service content selected first in S108 of FIG.
Become content.

FIG. 11 shows a specific example of the content distribution system of the present invention. The digital broadcasting company uses the content transmitting device 10 to broadcast a large amount of broadcasting service contents over a plurality of transmission channels. These broadcast service contents are received by the receiver of the automobile of the viewer A or B who is equipped with the content reception / presentation device 20.

When the viewer A wants to know the traffic information and weather information in the vicinity of the traveling area, the content reception / presentation device 20 of the viewer A mainly stores the contents of POI information, traffic information, and weather information. The included data service is automatically selected and received, and the received information is accumulated. When the preference of the viewer B is mainly music, the content reception / presentation apparatus 20 of the viewer B automatically selects and receives the data service mainly including the music distribution content, and accumulates the received information. To be done.

A broadcasting service which is currently being broadcast by automatically selecting and accumulating some contents which each viewer likes,
From the contents that have already been automatically selected and stored,
A candidate to be presented is extracted, and an automatic selection presentation program 30
4 calculates the index (score) of each candidate. The automatic selection / presentation program 304 of the content reception / presentation apparatus 20 of the viewer A gives a high score to the POI information, traffic information and weather information, and automatically selects and presents the broadcasting service / content to be presented from among them. The automatic selection / presentation program 304 of the content reception / presentation apparatus 20 of the viewer B,
High scores are given to music programs being broadcast and music contents that have been automatically selected and accumulated, and broadcast service contents to be presented are selected and presented from among them.

In this way, even if the digital broadcasting company broadcasts the broadcasting service contents having the same content as a whole, each viewer continuously watches the set of broadcasting service contents matching his or her preference. It will be possible. Also, the viewer can create his own service channel that suits his or her preference with a simple operation without bothering the user. This is extremely effective, especially for viewers driving a car.

As described above, it is possible to automatically select and present, from a plurality of broadcast service contents, broadcast service contents suitable for the state of the content reception / presentation apparatus 20 at each time point. Can also be automatically selected and presented at the same time. Furthermore, even if the received data is lost due to disconnection of the line or movement to a place where radio waves do not reach, etc. From the accumulated contents, the device information of the contents reception / presentation device 20 at that time,
Content that matches the parameters can be automatically selected and presented. That is, it is possible to automatically and automatically present one or more service contents satisfying the conditions required for presentation.

By the way, the content reception / presentation apparatus 2
A plurality of 0 automatic selection / presentation programs 304 may be provided in the content reception / presentation apparatus 20. For example,
When a plurality of viewers use the same content reception / presentation device 20 to view broadcast service contents using the automatic selection / presentation program 304, the automatic selection / presentation program 304 selects the automatic selection / presentation algorithm 305 for each individual viewer. It is more effective if the parameters 306 are optimized. Further, even when the same viewer uses the program, the automatic selection / presentation program 304 can be selectively used depending on the time and the case.

However, the automatic selection presentation program 3 described above is used.
Since 04 only automatically selects the optimum broadcast service content and gives a presentation instruction, it is difficult for the viewer to understand which automatic selection presentation program 304 is currently performing the automatic selection presentation. Further, since the individual automatic selection / presentation programs 304 are different only in the automatic selection / presentation algorithm 305 and the parameters 306, there is a drawback that it is difficult to draw out the features of the respective automatic selection / presentation programs 304.

Therefore, it is possible for the viewer to clearly determine which automatic selection presentation program 304 is currently being used, and the automatic selection presentation program 304 used by the viewer is operating properly. In order to make it possible to easily confirm the above, characteristics not limited to only the difference between the automatic selection presentation algorithm 305 and the parameter 306 are extracted, and the response itself of the automatic selection presentation program 304 is rendered and displayed.

The automatic selection presentation program 30 as described above
In order to produce the response of No. 4, the electronic character response is displayed by different modeling data for each different algorithm and parameter of the automatic selection presentation program 304, and the different algorithm and parameter are displayed on different modeling data and character respectively. The viewer automatically connects the viewer with the character display program 3
The setting contents of the algorithm and parameters of 04 can be easily associated.

FIG. 12 shows a content distribution system for displaying characters corresponding to the automatic selection / presentation program. The content transmission apparatus of this embodiment is equipped with a character content generation apparatus 101 in addition to the components shown in FIG. Further, the content reception / presentation device 20 is equipped with a plurality of types of content automatic selection / presentation programs 304, and each of the automatic selection / presentation programs 304 is associated with a visually or aurally different presentation character by the modeling data 307. , The difference of the automatic selection presentation program 304 is represented by the difference of the character. The other components are the same as those shown in FIG.

Automatic selection / presentation program 3 of this embodiment
04 is composed of an automatic selection presentation algorithm 305, parameters 306, and modeling data 307. The automatic selection presentation algorithm 305 automatically selects the optimum content from the metadata of the content and the state of various sensors connected to the reception and presentation device 20. It is determined whether to selectively present or to make an optimal motion response.

The parameter 306 records the viewer's preferences and operation habits up to the present. The index indicating the service type or genre of the content that the viewer likes, the index indicating the tendency of the content selection operation by the viewer, and the keyword or the like that is remarkable from the result of the operation by the viewer are recorded.

The modeling data 307 is data for visually or auditorily representing the type of the automatic selection / presentation program 304 as a character, and the appearance of the character,
It also includes voice synthesis data and data such as back images and wallpapers.
The data transmitted by this content distribution system are as follows.

(I) Broadcast service and contents. This is the data of the broadcasting service contents irrelevant to the character, and the automatic selection / presentation program 304 is provided with only the automatic selection / presentation function of the broadcasting service contents as described above, and is not directly involved in the motion of the character. The automatic selection presentation program 304 responds to the automatic selection presentation based on the metadata as described above.

(II) Character service / character contents. This causes the character to appear in the broadcast service content and moves the character in conjunction with the modeling data 307, so that motion data is transmitted from the character content generation device 101 of the content transmission device 10. For example, as shown in FIG. 13 (b), a character can be made to appear in a news program, and a broadcast service content or the like can be produced in which the character is gestured and handed out and the news is read aloud. (III) Metadata. This is a uniform format for the content and attributes of broadcasting services and content.
It is similar to the above-mentioned metadata.

Next, the character performance will be described. The character performance has no direct relation to the broadcast service content to be transmitted, and the character plays a role of a communication tool as a user interface with the viewer.
It is a program and presentation for displaying the operation state of 04 in an easy-to-understand manner and giving the viewer amusement.

The character performance is determined by the automatic selection / presentation program 3 based on the data of the device information storage unit 301 of the content reception / presentation device 20 and the parameters 306.
04 determines the operation state of the automatic selection presentation by the automatic selection algorithm 305, determines the effect corresponding to the operation state, and uses the modeling data 307 to visually and visually
Make an auditory presentation. Since the result of the automatic selection presentation up to now is reflected in the parameter 306, the reaction of the character is rendered so as to always match the result of the automatic selection presentation performed by the viewer.

Next, the character performance, the character service, and the presentation timing of the character contents will be described. In the flow of the automatic selection / presentation program 304 shown in FIG. 2 described above, the service metadata and the content metadata are collected by being activated by an instruction from a viewer or an instruction from another program (S10).
1) Obtain current device information / parameters and device information (S102), calculate the score of each broadcast service content, and automatically select and present the broadcast service content with the highest score. Add character performance, character service, and character contents in.

That is, the scores of the broadcasting service, the contents, the character performance, the character service, and the character contents are calculated in the same row, and the scores are automatically selected as appropriate. By doing so, it is possible to appropriately mix character performance and character service / character content played by a character and other broadcast service content at appropriate intervals to provide a well-balanced presentation.

By the way, a plurality of characters may exist in the content reception / presentation apparatus 20 instead of one kind.
In that case, the viewer will select one character from among them. The method of selecting a character is performed by executing the character selection program 302.
The method of selecting the character is such that the viewer can arbitrarily select from the appearance of the plurality of characters and simple guidance. At this time, it is also possible to prompt the viewer to select a character suitable for the viewer by asking the question to be answered.

The automatic selection / presentation algorithm 305, the parameter 306, and the modeling data 307 are managed as a pair and are changed for each character to change the tendency of automatic selection / presentation. By doing so, it becomes possible to display images such as characters and wallpapers in association with the tendency of automatic selection presentation and motion reaction.

FIG. 14 shows an example of a screen prompting the viewer to select a character. As shown in the figure, on the screen, for example, a character "Robo-tai" who tends to automatically select and present many news programs, a character "Mu" who is a maintenance favorite who does not change the tendency of automatic selection and presentation, mainly Characters such as "Ryoko" who tend to automatically select and present the broadcasting service / content that women prefer are presented. The viewer can easily specify his / her favorite automatic selection / presentation tendency by selecting a character that suits his / her taste from these.

The automatic selection / presentation program 304 changes the visual / audible expression of the character based on the modeling data 307 in accordance with the change in the parameter 306.
By doing so, the character performance and the representation of the character appearing in the character service / character content can be changed.

For example, when the viewer selects only music rock and the index representing the rock of the genre of the viewer in the parameter 306 becomes high, the character is expressed based on the data of the modeling data 307. For example, the auditory expression is changed to a rock tone, or the visual expression is changed to a mohawk head-like appearance.

By doing so, the image and type of the favorite broadcast service content selected by the user and the character selected by the user are matched, and the character becomes familiar. Then, it is possible to easily discriminate the selection tendency of the automatic selection / presentation program simply by glancing at the character or listening to the speech tone.

Next, an embodiment in which the viewer changes the selection tendency of the automatic selection / presentation program by changing the appearance of the character will be described. The viewer gives a command to the character by using the input means such as the panel button, the remote controller, and the voice recognition input 207. According to the command, the appearance of the character is changed by changing the clothes of the character or holding the item by using the data of the modeling data 307. Then, according to the change of the appearance, the parameter 306
Is changed to change the tendency of the automatic selection of the automatic selection presentation program 304.

FIG. 15 shows an example of changing the appearance of a character. As shown in the figure, for example, the viewer voice-inputs a keyword such as "beach", "Shonan", "fireworks" and gives a command to the character. By the command, the parameter 306 related to summer is changed, the visual and auditory expressions of the character are changed accordingly, and the character is transformed into, for example, the appearance of wearing an aloha shirt or wearing sunglasses. At the same time, the automatic selection tendency of the automatic selection presentation program 304 is changed to select broadcasting service contents related to them, for example, surfing, Hawaiian, somen. FIG. 16 shows an example of a keyword of an instruction given by voice input.

When the character is given an item such as an umbrella, two points are added to the points of the genre of the weather forecast of the parameter 306. By doing so, the tendency of the broadcast service contents selected by the automatic selection / presentation program 304 is such that a large number of weather forecast broadcast service contents are presented. FIG. 17 shows an example of items to be given to a character, related genres, and weighted points.

As described above, the viewer can change the tendency of automatic selection of the automatic selection / presentation program 304 by changing the appearance of the character. The appearance of the character and the tendency of the automatic selection presentation will be matched, and the viewer can change the tendency of the automatic selection presentation personalized for the viewer by dressing the character of his or her preference. .

The automatic selection / presentation program 304, the automatic selection / presentation algorithm 305, the parameters 306, and the modeling data 307 may be transmitted from the content transmission device 10 to the content reception / presentation device 20. In this case, the character of automatic selection and presentation can be distributed by further specifying those combinations.

Further, the parameter 306 is changed by referring to the metadata in the broadcasting service contents received by the automatic selection reception, the automatic selection presentation program 304, the automatic selection presentation algorithm 305, the parameter 306, the modeling data 307. It is also possible to switch. By doing so, the appearance of the character can be changed according to the content currently stored.

(Supplementary Note 1) A transmission device that multiplexes a plurality of types of distribution information and metadata representing the attributes of the distribution information and transmits them simultaneously to a plurality of receiving and presenting devices through a plurality of transmission channels, and the distribution information. In an information distribution system including a reception and presentation device that receives and presents from a plurality of transmission channels, the reception and presentation device is a unit that receives and stores the distribution information and the metadata, and is transmitted or stored. Priority evaluation means for calculating the index indicating the priority of each presentation for a plurality of types of delivery information and evaluating the priority, and receiving and storing other delivery information in parallel with presentation of the delivery information. The processing means and the presentation time of each piece of distribution information are acquired from the metadata, and based on the presentation time and the priority, the distribution information having a higher priority is given priority to continuously distribute the distribution information. An information distribution system comprising: a continuous presentation unit that performs a process of presenting. (Supplementary Note 2) A plurality of types of distribution information and metadata representing attributes of the distribution information are received from a plurality of transmission channels,
In a reception and presentation device that presents the distribution information based on the metadata, the device status information, and the parameter information recorded in the storage medium, a storage unit that stores the distribution information and the metadata, and transmits or stores the distribution information and the metadata. Priority evaluation means for calculating the index indicating the priority of each of the distributed distribution information and evaluating the priority, and receiving and storing other distribution information in parallel with the distribution information presentation. A process for obtaining the presentation time of each piece of distribution information from the metadata and the simultaneous processing means, and successively presenting the distribution information by prioritizing the distribution information having a high priority based on the presentation time and the priority. And a continuous presentation means for performing. (Supplementary Note 3) A means for selecting one or a plurality of distribution information other than the distribution information being presented as an alternative presentation candidate based on the index of the priority evaluation means, and a switching presentation means for the alternative presentation candidate The reception and presentation device according to appendix 2, characterized in that. (Supplementary Note 4) A plurality of types of distribution information selection / presentation programs including the priority evaluation unit and the continuous presentation unit, each of which gives different priority to the distribution information, are provided. Alternatively, the program identification display means for displaying by a user interface of the display form which is auditory different, and the program selection means for enabling selection of one of the plurality of distribution information selection / presentation programs are added. The reception and presentation device according to item 3. (Supplementary Note 5) The distribution information selection / presentation program includes a selection tendency storage unit that stores information about a genre of the distribution information based on a distribution information presentation result, and a distribution information selection / presentation program based on a change in selection tendency. Automatic selection learning means for changing the priority selection, and program display form changing means for visually or audibly changing the display form of the distribution information selection / presentation program based on the change in the selection tendency. The reception and presentation device according to appendix 4. (Supplementary Note 6) The program identification display means by the user interface of the different presentation form displays the distribution information selection / presentation program by using a character image that is associated with the distribution information of the tendency selected by the distribution information selection / presentation program. The reception and presentation device according to Supplementary Note 4 or 5. (Supplementary Note 7) The reception and presentation device according to Supplementary Note 6, wherein the program display form changing means changes the display form of the character image. (Supplementary Note 8) A tendency of distribution information, which is provided with an input unit for a command to change the display mode of the character, and which is automatically selected by the distribution information selection / presentation program in response to a change in the display mode of the character changed by the command. 8. The reception / presentation device according to appendix 7, further comprising:

[0116]

As described above, according to the present invention,
For a plurality of broadcasting services or contents in a plurality of transmission channels, an index showing the priority of presentation for each viewer is calculated and the priority is evaluated, and the optimum broadcasting service or contents is summarized according to the index. By automatically selecting and presenting such that they can be continuously presented, the viewer can save time and effort for viewing individual broadcast service contents, and can continuously select the optimal content that the viewer prefers in the empty-handed state. Broadcast service or content can be viewed.

Further, by presenting a plurality of broadcasting services and contents in combination at the same time, and by automatically selecting and accumulating other broadcasting services and contents at the same time, the optimum broadcasting service can be selected from among as many broadcasting services and contents as possible. -The content can be selected and presented to the viewer.

Also, by making it possible to select a broadcast service or content that is an alternative presentation candidate other than the currently presented service or content based on the index of the priority evaluation means, the viewer can select a desired alternative candidate. It is possible to minimize the time and effort to switch to, and the time and effort to switch the broadcasting service / content due to an error in automatic selection of the automatic selection / presentation algorithm.

By providing a plurality of automatic selection / presentation means having different selection tendencies, the viewer can easily select the broadcast service / content he / she prefers, and the characteristics of the selection tendency of the automatic selection / presentation means. Is displayed using a user interface such as a character associated with it, the viewer can easily grasp the tendency of automatic selection of broadcast service / content. In addition, even when broadcasting service contents that do not suit the viewer's taste are automatically selected and presented, it is expected that the character display will be interpreted as a human error, and the viewer will often accept the result of automatic selection and presentation. can do.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a content distribution system of the present invention.

FIG. 2 is a diagram showing a processing flow of an automatic selection and presentation program.

FIG. 3 is a diagram showing a hierarchical relationship of broadcast service contents of the present invention.

FIG. 4 is a diagram showing a structure of a service metadata table (SMT).

FIG. 5 is a diagram showing a structure of a content metadata file and a method of managing content metadata.

FIG. 6 is a diagram showing an example showing a frequency of a viewer's favorite genre.

FIG. 7 is a diagram showing a method in which an automatic selection / presentation program evaluates broadcast service contents.

FIG. 8 is a diagram illustrating an example of calculating an index (score) of content.

FIG. 9 is a diagram showing a specific example of selecting broadcast service contents based on a score.

FIG. 10 is a diagram showing a presentation screen and an operation panel of the content reception / presentation apparatus 20.

FIG. 11 is a diagram showing a specific example of the content distribution system of the present invention.

FIG. 12 is a diagram showing a content distribution system that displays characters in correspondence with an automatic selection presentation program.

FIG. 13 is a diagram showing an example of a character service / character content.

FIG. 14 is a diagram showing an example of a screen prompting the viewer to select a character.

FIG. 15 is a diagram showing an example of changing the appearance of a character based on a keyword input by a viewer.

FIG. 16 is a diagram showing an example of a keyword of a command given by a viewer's input.

FIG. 17 is a diagram showing an example of items to be given to a character, related genres, and weighted points.

[Explanation of symbols]

10 Content transmission device 102 content generation device 103 metadata generation device 104 content metadata storage device 105 sending program 106 packet multiplexer 107 transmission signal processing unit 20 Content reception and presentation device 201 transmission decoding processor 202 packet separator 203 audio decoder 204 video decoder 205 switch 206 synthesizer 207 Panel button, remote control, voice recognition input section 208 Device status determination circuit 209 Device state detection device 210 External device status detection device 211 Content / Metadata Storage Device 212 processors 300 memory 301 Device information storage unit 304 Automatic selection presentation program 305 Automatic selection presentation algorithm 306 parameters 40 speakers 50 monitors

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Takashi Saito             4-1, Kamiodanaka, Nakahara-ku, Kawasaki-shi, Kanagawa             No. 1 within Fujitsu Limited (72) Inventor Noriko Imamura             5-2-1 Ginza, Chuo-ku, Tokyo Mobile             Le Broadcast Co., Ltd. (72) Inventor Hideo Kikuchi             5-2-1 Ginza, Chuo-ku, Tokyo Mobile             Le Broadcast Co., Ltd. F term (reference) 5K061 AA09 BB00 BB10 CC45 DD12                       FF00 FF01 GG09 JJ07

Claims (5)

[Claims] 1. A transmission device that multiplexes a plurality of types of distribution information and metadata that represents an attribute of the distribution information, and that simultaneously transmits to a plurality of receiving and presenting devices simultaneously by a plurality of transmission channels, and a plurality of the distribution information. In an information distribution system including a reception and presentation device that receives and presents from a transmission channel, the reception and presentation device includes means for receiving and accumulating the distribution information and the metadata, and a plurality of transmitted or accumulated data. Priority evaluation means for calculating the index indicating the priority of each type of delivery information and evaluating the priority, and simultaneous processing means for receiving and storing other delivery information in parallel with the presentation of the delivery information. And obtaining the presentation time of each piece of distribution information from the metadata, and based on the presentation time and the priority, the distribution information having a high priority is given priority and the distribution information is continuously presented. Information distribution system is characterized in that a continuous presentation means for processing. 2. A plurality of types of delivery information and metadata representing attributes of the delivery information are received from a plurality of transmission channels, and based on the metadata, device status information, and parameter information recorded in a storage medium, In a reception and presentation device that presents the distribution information, a storage unit that stores the distribution information and the metadata, and an index that indicates the priority of each presentation for a plurality of pieces of distribution information that is transmitted or stored. Priority evaluation means for evaluating the priority, simultaneous processing means for receiving and storing other distribution information in parallel with presentation of the distribution information, obtaining presentation time of each distribution information from the metadata, and presenting the presentation time. A reception and presentation device comprising: a continuous presentation unit that performs a process of continuously presenting the distribution information by giving priority to the distribution information having a high priority based on the time and the priority. 3. A means for selecting one or a plurality of distribution information other than the distribution information being presented as alternative presentation candidates based on the index of the priority evaluation means, and a switching presentation means for the alternative presentation candidates. The reception / presentation apparatus according to claim 2, wherein 4. A plurality of types of distribution information selection / presentation programs, which include the priority evaluation unit and the continuous presentation unit, and which give different priorities to distribution information, respectively. A program identification display means for displaying by a user interface of a display form that is different from each other physically or acoustically, and a program selection means for enabling selection of one of the plurality of distribution information selection / presentation programs. The reception presentation device according to 2 or 3. 5. The distribution information selection / presentation program includes a selection tendency storage unit that stores information about a genre of the distribution information based on a distribution information presentation result, and a distribution information selection / presentation program based on a change in the selection tendency. The automatic selection learning means for changing the priority selection in the above, and the program display form changing means for visually or audibly changing the display form of the distribution information selection / presentation program based on the change in the selection tendency. The reception and presentation device according to claim 4.