JPH0879113A - FM multiplex broadcasting receiver - Google Patents

Abstract

(57) [Abstract] [Purpose] In FM multiplex broadcasting, the number of operations that need to be visually recognized when selecting a program is reduced. [Structure] A selection screen is displayed on the display device (n1), the voice request flag F1 is 1, and it is determined whether or not voice is requested (n3). If the voice is requested, it corresponds to the contents of the selection screen. The voice data is read (n7), and the voice data is transferred to the voice synthesis circuit (n8) to be voiced and output. The operator listens to and selects a voice, determines the program number corresponding to the selected program input from the input means (n9), reads the corresponding program data (n10), and displays it on the display device (n11). If the next program request flag F3 is 1 and it is determined that the next program is requested to be selected (n13), the selection screen is displayed again on the display device (n1), but the voicing is performed. Is only done once.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an FM multiplex broadcast receiving apparatus for receiving a multiplexed signal transmitted by being multiplexed with an FM broadcast wave.

[0002]

2. Description of the Related Art In FM multiplex broadcasting, multiple signals such as graphic / character information by digital signals are added to FM broadcast waves in the VHF band, and various information can be transmitted by this multiplex signal. It is planned to use this to provide traffic information, for example.

FIG. 9 is a diagram showing the hierarchical structure of the FM multiplex broadcasting protocol. The multiplexed signal is frequency-shifted to a wider frequency band than the normal program broadcasting signal shown by hatching in the layer 1 of FIG. The multiplexed signal is OSI (Open Sy).
stem interconnection) According to the reference model, a layer 2 link layer, a layer 3 network layer, a layer 4 transport layer, a layer 5 session layer, a layer 6 presentation layer, a layer 7 application are provided on top of a layer 1 physical layer. Each layer is defined. The first physical layer has a frequency band of about 76 kHz ± 10 k
L-MSK with a bit rate of 16 kbit / s at Hz
(Minimum Shift Keying) It is specified that the data is modulated and transmitted.

In the prior art, a signal transmitted by multiplexing a multiplex signal with a normal FM broadcast wave is received by, for example, an antenna of an FM multiplex broadcast receiving device mounted on a vehicle, and an FM program broadcast signal and a multiplex signal are received by a tuner. After being demodulated, the multiplexed signal of the two signals is demodulated into a digital signal by the decoder and input to the data processing circuit. The information transmitted by this signal is stored in the storage means realized by the memory or the like in the data processing circuit.

FIG. 10 is a diagram showing this information as time series data. The data group data 51 is composed of a program header which is a code unique to the program and 0, 1 or a plurality of continuous program headers, and one or a plurality of data units which are data of the program content. For example, at the beginning of a program aggregate, which is an aggregate of multiple programs of time-series data such as traffic information, is data for displaying a selection screen for selecting a desired program from a plurality of subsequent programs. Certain selection screen data 51a and data for controlling the data processing circuit so as to select and read a subsequent program based on a signal input by an operator from input means realized by a keyboard or the like according to the display of the selection screen. Selection control data 51b that is Selection control data 51
After b, there is program data such as highway data 51c which is traffic information of a highway and general road data 51d which is traffic information of a general road. The data processing circuit reads the selection screen data 51a when an operation for using a program aggregate such as traffic information is performed from the input means, and displays it on a display device realized by, for example, a liquid crystal display or a cathode ray tube. A selection screen as shown in 11 is displayed. The operator visually recognizes the screen, selects a program to be used, and selects the selection number attached to the program, for example, 1 if expressway information is selected.
From the input means to the data processing circuit. The data processing circuit reads the selection control data 51b, which is information having the contents shown in FIG. The selection control data 51b is data for determining the program data to be read by associating the selection number given to the subsequent program for input by the operator on the selection screen with the program number unique to the subsequent number, For example, the selection number 1 assigned to "Expressway" in the selected program corresponds to the program number 10 and page 1, and the selection number 2 assigned to "General road" in the selection screen is the program number 15, Corresponds to page 1. The data processing circuit refers to the selection control data 51 from the selection number input from the input means, determines the program number and page to be read, determines the program to be read, and reads the program data and displays it on the display means. indicate.

In this conventional technique, it is necessary to visually check the selection screen and grasp the display content when selecting a program.
It is planned to provide traffic information and the like in FM multiplex broadcasting, and a driver operates the FM multiplex broadcasting receiving device mounted on a vehicle or other moving body while the driver is driving to use the program. Can be considered. However, it is very difficult for the driver to visually recognize the selection screen while driving the vehicle, and it takes time to select necessary traffic information and display it on the screen.

In order to solve such a problem, it is possible to use voice output. As a first conventional technique for using voice, there is a utility model 4-105735. This prior art outputs the current reception frequency of the radio or the name of the broadcasting station by voice to the voice recognition data input using the voice input means, and controls the receiving operation of the radio by the voice recognition data. It is a radio receiver that tunes in and outputs the result of this tune in voice.

Further, as a second conventional technique, the actual exploitation 58
-116330 can be mentioned. The related art is a car radio that outputs the name of a broadcasting station currently being received by voice according to the relationship between the frequency and the name of the broadcasting station stored in advance.

[0009] As a third conventional technique, the actual exploitation 63
-129341 is mentioned. The related art is a radio receiver having a recording / playback function by connecting a voice synthesizer to a receiving circuit.

[0010]

In the prior art, when selecting a program, it is necessary to visually recognize the selection screen and grasp the contents of the screen. However, for example, a driver using an FM multiplex broadcasting receiver mounted on a vehicle. When the driver tries to use the information transmitted by the FM multiplex broadcasting while driving, the driver's attention may be directed to the display device in order to visually recognize the time selection screen to the extent that the contents can be grasped. And cause a sideways drive. Therefore, the safety of traveling may be impaired. Further, the first prior art discloses a means for outputting the received frequency of a radio or the information of the navigation system which has been conventionally visually recognized as a voice and confirming by listening. Although it is the content of the program selected from a plurality of known programs that is disclosed as the type of information to be voiced in this conventional technology,
Broadcasting transmitted by FM multiplex broadcasting as in the present case may be traffic information, for example, but traffic information is more related to roads that are closer to being visualized and output than to be output and listened to as audio. The relationship with surrounding information is easy to understand and meaningful. Also, in this case, the programs that can be selected are often different each time they are used. For example, in the traffic information, it is conceivable that the broadcast station you are receiving, that is, the program about the road in the area where you are currently traveling, is transmitted, and the name of the program displayed on the selection screen and the It is considered that the configurations such as the selection numbers are also different. Therefore, if the names of the programs that can be selected and the selection numbers attached to them are output as an image, it is considered that the viewing time will be longer, especially when the number of programs is large. Since it can be shortened to 1, it is considered to be useful in ensuring the safety of driving and using FM multiplex broadcasting.

Furthermore, the second prior art is to inform the operator of the frequency currently being received by the radio and the name of the broadcasting station, and the third prior art is to record the receiving broadcasting station. , Is played by voice. These conventional techniques output the received contents by voice, and in order to select a program from this, it is necessary to visually recognize in the form of character / graphic information.

An object of the present invention is to reduce the operations that require visual recognition for program selection when using FM multiplex broadcasting,
An object of the present invention is to provide an FM multiplex broadcast receiving device capable of improving traveling safety when being used on a vehicle.

[0013]

DISCLOSURE OF THE INVENTION The present invention is an FM multiplex broadcast receiving apparatus for displaying a plurality of types of information multiplexed in an FM broadcast by selecting them in accordance with selection data contained in the multiplexed information and displaying the image. An FM multiplex broadcast receiving apparatus comprising: a voice conversion unit for converting the selection data into a voice; and an input unit for selecting information to be displayed as an image according to the selection data. Further, the present invention is characterized by comprising a permitting unit for selecting whether the voice of the selected data by the voice converting unit is permitted or not.
Furthermore, the present invention is characterized by comprising requesting means for converting the selected data into voice by the voice converting means only during a predetermined request operation.

[0014]

According to the present invention, the FM multiplex broadcast receiving apparatus selects a plurality of types of multiplexed information according to the selection data contained in the multiplexed information and displays the image. Since the device includes a voice converting unit for converting the selected data into a voice, and an input unit for inputting a result of selecting the information to be displayed as an image according to the selected data, it is possible to visually check the display.
By listening to the sound, the display content can be known, and the number of operations that require visual recognition can be reduced.

[0015] Preferably, the device is provided with a permitting unit for selecting whether the voice conversion of the selected data by the voice converting unit is permitted or not, so that the permission or the non-permission can be flexibly dealt with.

Further, preferably, the apparatus is provided with a requesting means for voicing the selected data by the voice converting means only during a predetermined request operation, so that the voicing can be performed only when it is judged necessary.

[0017]

1 is a block diagram showing an electrical configuration of an FM multiplex broadcast receiving apparatus using the present invention. The signal received by the antenna 1 is input to the tuner 2. The tuner 2 includes a high frequency amplification circuit, a frequency conversion circuit, a local oscillator,
It is composed of an intermediate frequency filter, an FM detection circuit, and the like. The signal input to the tuner 2 is amplified by the high frequency amplifier circuit, mixed with the signal generated from the local oscillator by the frequency conversion circuit, and converted into an intermediate frequency signal which is the difference frequency between the two signals. The signal is filtered by an intermediate frequency filter, demodulated into a program broadcast signal and a multiplexed signal by an FM detection circuit, and output from the tuner 2. The program broadcast signal and the multiplex signal output from the tuner 2 are input to circuits of two systems. One of the two circuits is
An audio circuit 3 including a stereo demodulation circuit, an amplifier, a noise filter, etc., which separates the left and right signals when the program broadcasting signal of the two input signals is a stereo signal, and amplifies these signals. , Noise is removed and the sound is output from the speaker 4 as an acoustic output. The other circuit is a multiplexed signal circuit including a decoder 5, a data processing circuit 6, an input means 7, a display means 8 and the like, and the multiplexed signal of the two input signals is converted into a digital signal by the decoder 5. Then, the data is input to the data processing circuit 6. The data processing circuit 6 displays the data of the inputted digital signal on the display means 8 according to the operation of the input means 7, judges whether or not to output by voice, and when it is permitted, the voice synthesizing circuit 9 The voice data read from the memory in the data processing circuit 6 is transmitted, the voice synthesis circuit 9 synthesizes voice based on the voice data, the amplifier 10 amplifies the voice, and the speaker 11 outputs the voice.

In FM multiplex broadcasting, a plurality of programs transmitted by using multiplex signals are each given a program number, and a unique number is previously determined by the program classification and contents. Therefore, for example, the program header, which is a component of the selection screen data that is data for displaying the selection screen, is given a unique program number indicating that the selection screen data.

FIG. 2 shows the processing circuit 6 in the data processing circuit 6.
It is a figure which shows the structure of a and the memory 6b. Memory 6b
Text-format voice data to be output as voice is stored therein. When the digital signal is input from the decoder 5 to the data processing circuit 6 and the audio output is permitted by the input from the input means 7, the processing circuit 6a in the data processing circuit determines from the program number from the memory 6b. The audio data corresponding to the program content is read and output to the audio synthesis circuit 9. The voice synthesizing circuit 9 synthesizes a voice based on the input voice data and outputs it to the amplifier 10. The output sound is amplified by the amplifier 10 and then output from the speaker 11.

As another method of converting the display screen into voice, as shown in FIG. 3, the contents of the data in the memory 6b are simplified, and a memory 12 serving as a dictionary is provided in the voice synthesizing circuit 9 to make the memory 6b. The voice data corresponding to the content of is stored. The processing circuit 6a in the data processing circuit 6 reads the data corresponding to the program number, which is, for example, a simple word, from the memory 6b and outputs it to the voice synthesizing circuit 9. The voice synthesis circuit 9 reads the voice data corresponding to the input data from the memory 12, synthesizes the voice, and outputs the synthesized voice to the amplifier 10.

As the above-mentioned voice data, data in a form that the voice synthesis circuit 9 can easily receive is used. The format of the above-mentioned data is, for example, kana data containing phonetic symbols in the form of a series of sentences, or text data mixed with kanji may be converted into kana data by registered reading, or stored. It may be a combination of kana data containing phonetic symbols of short phrases or a combination of kanji and kana data. Further, not only the voice data registered at the time of shipment from the manufacturer, but also the voice data in the text format which the user independently inputs into the memory may be used.

In the present embodiment, the amplifier 11 and the speaker 12 for outputting the contents of the selection screen as voice are of a different system from the speaker 4 for outputting the program broadcast signal as an acoustic signal. The same speaker may be used by outputting the output signal of the circuit 9 from the speaker 4 as an acoustic signal in the audio mute circuit.

FIG. 4 is a flow chart showing the operation of the voice permission switch provided in the input means. For example,
When the voice permission switch realized by the touch key or the function key of the keyboard is operated to make it conductive, the process proceeds to step s1. In step s1, it is judged whether or not the voice permission flag F1 indicating whether or not the voice output is permitted is 0, and if so, the flag F is determined.
1 is set to 1 and the processing is ended. If not, the flag F1 is reset to 0 and the processing is ended.

FIG. 5 is a flowchart showing the operation of the next program request switch provided in the input means. For example, when the next program request switch realized by a touch key or a function key of the keyboard is operated to make it conductive, the process proceeds to step s4. In step s4,
It is determined whether or not the program data is being displayed on the display means, and if so, the next program request flag F3 indicating whether or not it is requested to return to the selection screen to select the next program is 1 Is set to end the processing, otherwise, that is, when the program data is not currently displayed,
The process is terminated as it is.

FIG. 6 is a flow chart showing the operation of converting the contents of the selection screen into speech according to an embodiment of the present invention. When the FM multiplex reception device performs an operation of using multiplex signals, the process proceeds to step n1. In step n1, the selection screen data is read and displayed on the display device 8. Step n2
Then, the next program request flag F3 is reset to 0.
In step n3, it is determined whether or not the voice permission flag F1 is 1, and if so, that is, if the selection screen content is permitted to be voiced, the process proceeds to step n4, otherwise, If the voicing is prohibited, the process proceeds to step n9. As a result, the driver can set in advance whether or not to use the voicing, and it is possible to selectively use the display device only or the combined use of the display device and the voice.

If the voicing is permitted, step n
In 4, it is determined whether or not the voice used flag F2 indicating whether or not the voice has been performed during this process is 0, and when that is the case, that is, when the voice is performed for the first time. Proceeds to step n5, and if not, that is, if the voicing has already been performed, proceeds to step n9. As a result, it is possible to prevent the selection screen having the same content from being repeatedly voiced, so that it is possible to improve the safety of traveling without unnecessarily drawing the driver's attention.

When converting the contents of the selection screen into voice, the voice used flag F2 is set to 1 in step n5, the selection control data and the like are read in step n6, and the program number or the program number of the selection screen itself is determined. Then, the program content is judged and the corresponding audio data is stored in the memory 6 in step n7.
It is read from b, and the voice data is transferred to the voice synthesizing circuit 9 in step n8. The voice synthesis circuit 9 converts the transferred voice data into voice. After transferring the voice data,
Alternatively, if the voicing is not permitted, the process proceeds to step n9, and the number input from the operating means, for example, the program number corresponding to the selection number corresponding to the program name on the selection screen is determined by referring to the selection control data. And then step n10
Read the program data corresponding to the program number with
At 11, the program data is processed and the program is displayed on the display means.

At step n12, it is judged whether or not the input means such as a key on the keyboard has been operated. If so, the process proceeds to step n13. If not, the process returns to step n12 again to make a judgment until the operation is performed. Repeat. If any operation is performed, the process proceeds to step n13 to determine whether the next program request flag F3 is 1. If so, that is, if the key of the input means operated in step n12 is the next program request switch, the process returns to step n11 to display the selection screen on the display means. If not, the voice used flag F2 is reset to 0 in step n14, and the process is terminated. As a result, the contents of the selection screen can be output as a voice, and the permission / non-permission of the voice can be switched.

FIG. 7 is a flow chart showing the operation when the voice request switch is operated. For example, when a voice request switch realized by a touch key or a function key of the keyboard is operated to make it conductive, the process proceeds to step s6. In step s6, it is determined whether or not the selection screen is currently displayed, and if so, the voice request flag F4 requesting that the contents of the selection screen be voiced is set to 1 in step n7, and the process is terminated. If not, the process is terminated.

FIG. 8 is a flow chart of the operation of voicing according to another embodiment of the present invention. This embodiment is similar to the above-mentioned embodiment, corresponding parts are designated by the same reference numerals, and description thereof will be omitted. Steps n1 to n2 proceed in the same manner as in FIG.

At step n21, it is judged whether or not the input means such as the key of the keyboard is operated,
If so, the process proceeds to step n22, and if not, the determination is repeated again at step n21, and this is repeated until an operation is performed. In step n22, it is determined whether or not the voice request flag F4 is 1, and if so, that is, if the key of the input means operated in step n21 is a voice request switch, step n22.
23, otherwise proceeds to step n9. If it is requested in step n22 that the contents of the selection screen be converted into voice, the voice request flag F
4 is reset to 0 and the process proceeds to step n6. As a result, the voice can be output only when the voice conversion is necessary. Steps n6 to n12 proceed in the same manner as in FIG. In step n13, it is determined whether or not the next program request flag F3 is 1, and if so, the process returns to step n1, otherwise, the process ends.

Further, in the above-mentioned two examples, when the selection number attached to the selected program is input by operating the input means while outputting the audio data as the audio, the audio is output. May be interrupted and the selected program may be output.

[0033]

As described above, according to the present invention, the FM multiplex broadcast receiving apparatus selects a plurality of types of multiplexed information according to the selection data contained in the multiplexed information and displays the image. Since the device is provided with a voice converting means for converting the selected data into voice and an input means for selecting the information to be displayed as an image according to the selected data, the display contents can be displayed by listening to the voice without visually recognizing the display. Since it is possible to know and reduce the number of operations that require visual recognition, it is not necessary for the driver to visually recognize the display device when the driver operates it by mounting the device on a vehicle, etc. It is possible to improve the sex.

Preferably, the apparatus is provided with a permitting means for selecting whether the voice conversion of the selection data by the voice converting means is permitted or not, so that whether or not the selected data is voiced can be freely set. The operability of the device is improved.

Preferably, the device is provided with a requesting means for converting the selected data by the voice converting means into voice only during a predetermined request operation, so that the voice can be converted only when voice conversion is required. Therefore, the operability of the device can be further improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing an electrical configuration of an FM multiplex broadcast receiving apparatus using the present invention.

2 is a diagram showing a configuration of a processing circuit 6a and a memory 6b in the data processing circuit 6 of FIG.

FIG. 3 is a diagram showing a relationship between voice data in text format stored in a memory 6b and voice data stored in a memory 12 in a voice synthesis circuit.

FIG. 4 is a flowchart showing an operation of a voice permission switch.

FIG. 5 is a flowchart showing an operation of a next program request switch.

FIG. 6 is a flowchart showing an operation of converting the content of a selection screen into voice according to an embodiment of the present invention.

FIG. 7 is a flowchart showing the operation of the voice request switch.

FIG. 8 is a flowchart showing an operation of converting the contents of a selection screen into voice according to another embodiment of the present invention.

FIG. 9 is a diagram showing a hierarchical structure of an FM multiplex broadcasting protocol.

FIG. 10 is a diagram of time-series data transmitted using multiple signals.

FIG. 11 is an example of a selection screen displayed on a display device.

FIG. 12 is a diagram showing the contents of selection control data 51b.

[Explanation of symbols]

 1 Antenna 2 Tuner 3 Audio Circuit 4, 11 Speaker 5 Decoder 6 Data Processing Circuit 6a Processing Circuit 6b, 12 Memory 7 Input Means 8 Display Device 9 Voice Synthesis Circuit 10 Amplifier

Claims (3)

[Claims] 1. An FM multiplex broadcasting receiver for selecting a plurality of types of information multiplexed in an FM broadcast according to selection data included in the multiplexed information and displaying the selected image as audio data. An FM multiplex broadcast receiving apparatus comprising: a conversion unit and an input unit for selecting information to be displayed as an image according to selection data. 2. The FM multiplex broadcast receiving apparatus according to claim 1, further comprising a permitting unit that selects whether the voice conversion of the selected data by the voice converting unit is permitted or not. 3. The FM multiplex broadcast receiving apparatus according to claim 1, further comprising requesting means for converting the selected data into sound by the sound converting means only during a predetermined request operation.