JP3373111B2 - FM multiplex broadcast receiver - Google Patents

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 receiver, and more particularly to a receiver having a preset memory for program information and a device for outputting character information in a program as voice by voice synthesis.

[0002]

2. Description of the Related Art In recent years, teletext programs (weather forecasts, news, etc.) and traffic information programs (traffic information for each area and each expressway) are multiplexed and transmitted to FM broadcast signals, and are displayed on display devices of FM receivers. The service to display is starting. A text-to-speech program is provided with a preset memory of program information of the teletext program, and as a text-to-speech synthesizer, the displayed text information is converted into synthesized speech in consideration of the safety when the user is driving a car. The technology of outputting as is also being developed.

In the preset memory method of program information in this FM multiplex broadcast receiver, after operating a key such as a menu key, a total table of contents program is displayed, a program is selected by keys 1 to 6, and designated according to selection control data. After displaying the program information, the program information being displayed, that is, the service category, the program number, the page number, and the like are stored in a predetermined preset address by operating a memory key or the like.

On the other hand, a text-to-speech synthesizing apparatus receives a character code string of a text data unit of page data of character information to be displayed on a receiver among multiplex programs, and
After using a Japanese dictionary or the like to convert character code strings of kanji-kana mixed sentences into phonetic symbol strings, voice output is obtained by superimposing / editing phoneme piece data corresponding to each phonetic symbol. . The control of the speed and pitch at the time of sound generation is set in advance by key input or the like. Further, the receiver side is configured to output page data including the corresponding text data unit to the text-to-speech synthesizing apparatus when switching the display screen, receiving a new page, or updating the content.

[0005] When the new page is received or the content is updated, the method of presenting these messages involves switching the display screen, lighting / flashing an indicator, outputting a beep sound, and the like.

[0006]

However, according to the above-mentioned conventional method for storing the program information in the FM multiplex broadcasting receiver, the contents stored in the preset address are divided into the service category, the program number, and the page as described above. Since data such as numbers are not included that indicate the contents of the program information, the user must always memorize what information was stored at which preset address, and forgot it. In such a case, it is necessary to press each preset address to display desired information, and to read the displayed contents each time to determine whether the program information is the desired program information, which is very inconvenient. Further, in the case of in-vehicle equipment, information is retrieved while the vehicle is running, which lacks safety.

In the above-described conventional text-to-speech synthesizing apparatus for FM multiplex broadcasting, the same operation is performed on a table of contents of character information displayed on the receiver. Will do. However, in general, a plurality of program options are displayed in one screen on the table of contents, and when selecting one of them, the audio output cannot assist the program selection, and eventually the display is displayed. You'll be making selections while watching the screen, which isn't convenient for your users.
In addition, in-vehicle equipment lacks safety.

[0008] Further, in the conventional FM multiplex broadcast receiver, receiving a new page of the character information to be displayed,
The method of presenting a message at the time of content update, such as switching the display screen, turning on / off the indicator, outputting a beep sound, etc., is mainly for indicating the timing at the time of data reception. In order to know, it is necessary to read the character information on the display screen by performing key operations etc., which lacks security and presents a message when receiving not only the information program desired by the user but also all program data, so frequent However, it is inconvenient that it is necessary to confirm the displayed contents by performing a key operation.

The present invention has solved the above disadvantages.
F which has a preset memory for program information and a device for outputting character information in a program as voice by voice synthesis
It is intended to provide an M multiplex broadcast receiver.

[0010]

According to a first aspect of the present invention, the above object is achieved by separating and demodulating information of an FM multiplex broadcast program from an FM broadcast signal and displaying the result on a display device. FM that outputs text information by voice synthesis
In the multiplex broadcast receiver, including a plurality of keys having a unique key number, comprising a preset memory means for program information, a key number display data string for guiding key input in the body data unit of the character information in the information By treating the following character code string as a program title, writing it in a predetermined preset memory together with the service category, program number, page number, etc., and displaying the stored program title prior to displaying the page data information when displaying it again Will be resolved.

According to a second aspect of the present invention, the above-mentioned problem is solved by separating information of an FM multiplex broadcast program from an FM broadcast signal, demodulating the information, displaying the demodulated information on a display device, and converting character information in the information into audio. An FM multiplex broadcast receiver for outputting voice by synthesis, comprising preset memory means for program information including a plurality of keys having unique key numbers, for guiding key input in a text data unit of character information in the information. By treating the character code string following the key number display data string as a program title, and outputting the program title character code string of the specific key number as a voice in response to the input of the specific number key as a speech synthesis output during the index screen display Can be solved.

Further, according to a third aspect of the present invention, the above-mentioned object is to separate and demodulate information of an FM multiplex broadcast program from an FM broadcast signal, display the demodulated information on a display device, and convert character information in the information into audio. An FM multiplex broadcast receiver for outputting voice by synthesis, comprising preset memory means for program information including a plurality of keys having unique key numbers, for guiding key input in a text data unit of character information in the information. The character code string following the key number display data string is treated as the program title, and when new or updated data is received, the program number is compared with the selection control data of the table of contents program, and the corresponding data is selected from the body data unit of the table of contents program. The problem is solved by extracting a character code string to be output and outputting the program title of the data received by the text-to-speech synthesizer as audio.

[0013]

According to the first aspect of the present invention, by pressing the memory key during the display of the program information, the character code string of the displayed program title is stored in the memory corresponding to the preset key number together with the service category, program number and page number. When the program information is displayed later, the program title is displayed prior to the information page. Therefore, the contents stored in the preset address are displayed including the program contents, and the information search becomes easy. .

In the second invention, by sequentially pressing keys 1 to 6 while the table of contents screen is displayed, the program title character code string corresponding to the key number pressed from the table of contents displayed as an option is processed in Japanese. Section, and the program title is output as audio. The user can select from sequentially output audio and press a desired key to confirm the selection, and the program selection is assisted by audio to facilitate the program selection. .

In the third invention, the newly received and updated received program numbers are temporarily stored, the table of contents program selection control data is checked, and the key-in number whose jump destination program number is the same as the program number is temporarily stored. Then, the character code string of the body data unit in the page data of the table of contents program is checked to obtain the program title character code string. The acquired character code string is added with a character string as a message and transferred to the Japanese language processing unit, and the program title is output as voice, so that new or updated received information can be recognized by voice.

[0016]

1 is a block diagram of an FM multiplex broadcast receiver according to the present invention. The FM multiplex broadcast receiver receives the FM broadcast signal,
The FM multiplex broadcast data (FM multiplex broadcast program information) such as teletext information and traffic information which are multiplexed and transmitted with the FM broadcast signal are separated, demodulated, and displayed on a display device.

In FIG. 1, reference numeral 1 denotes an antenna, 2 denotes a front end (F / E), which includes an antenna tuning circuit, a high-frequency amplifier circuit, a local oscillator, a mixer, etc., although not shown, and 3 denotes an intermediate unit. Frequency amplification / FM detector (if
Det). Reference numeral 4 denotes a noise canceller / stereo demodulation circuit (Nc + M) for performing noise cancellation and stereo demodulation.
PX), and outputs the demodulated stereo audio signal as L and R signals.

5 is a filter circuit (BPF) for extracting an L-MSK modulated component signal from the FM detection signal, and 6 is an L-MS
An L-MSK demodulation circuit that performs delay detection on the K modulation component signal to reproduce a bit clock and demodulate a bit data sequence;
Reference numeral 7 denotes a synchronization circuit for detecting block synchronization and frame synchronization, a CRC check unit for performing a CRC check for each block, and PN decoding of a bit data string based on the input block synchronization and frame synchronization detection signals. Thereafter, the synchronization / correction circuit includes an error correction circuit that temporarily stores the data in a memory (not shown) while separating the data into a predetermined format, generates syndrome data using a parity code, and corrects the error by majority decision on the syndrome.

Reference numeral 8 denotes a CPU which performs channel selection control in accordance with a channel selection operation, various processes based on FM multiplex broadcast data, and continuous reception control of an FM multiplex broadcast program when a reception frequency is changed. The memory 10 stores the selected FM multiplex broadcast program information (text information, road traffic information, etc.). The user operates a preset key or the like to select a station or calls a desired program (text information, road traffic information, etc.). Keys 11 for performing operations and the like are a display device for displaying a text broadcast program (news, weather forecast, etc.) and road traffic information on a screen, and include a display processor.

Reference numeral 12 denotes a Japanese processing unit having a Japanese dictionary ROM 13, which converts a character code string of character information into words / words.
Convert to phrase phonetic symbols. Reference numeral 14 denotes a speech synthesis processing unit, which reads out the phoneme data of the phonetic symbol from the phoneme segment ROM 15 and superimposes them to synthesize and output speech data.

Reference numeral 16 denotes a digital / analog conversion circuit which converts a digital audio signal output from the audio synthesis processing section 14 into an analog signal. Reference numeral 17 denotes a speaker including an audio amplifier, which amplifies the analog signal, converts the signal into an audio signal, and outputs the signal.

Next, the operation of the present invention will be described. C
The PU 8 inputs frequency data corresponding to the station of the frequency selected by the tuning operation to a PLL circuit (not shown) to perform electronic tuning control. Thereby, the front end 2 inputs the intermediate frequency signal corresponding to the reception frequency to the intermediate frequency / FM detector 3. The intermediate frequency / FM detector 3 performs intermediate frequency amplification and FM detection on the input signal, and the noise canceller / stereo demodulation circuit 4 performs noise cancellation and stereo demodulation of the input signal.

On the other hand, a filter circuit BPF5 extracts an L-MSK modulated signal component from the FM detection signal, and an L-MSK demodulation circuit 6 performs delayed detection on the L-MSK modulated signal to reproduce a bit clock and to generate bit data. Demodulate the sequence. The synchronization / correction circuit 7 receives the bit clock, the bit data string, and the synchronization signal output from the L-MSK demodulation circuit 6, performs an error detection and correction process on the input data, and inputs the multiplex broadcast data to the CPU 8. . CP
U8 stores the input multiplex broadcast data in the memory 9.

In such a state, by operating the key 10 to set the FM multiplex broadcast receiving mode, and further by inputting a service category and a program number to specify a broadcast program,
The CPU 8 reads out the data corresponding to the specified broadcast program from the memory 9 and inputs the data to the display device 11, and the display device 11 expands the data into an image and displays the image.

In the first embodiment of the present invention, in this case, the program title (character code string) displayed at the time of selecting a program in the table of contents program is changed to a service category, a program number,
Since the program title is stored in the preset address together with the page number and the like, and the program title is displayed prior to the information page when the information is displayed again, the above-described problem can be solved. FIG. 2 shows the display state of the structure of the table of contents program displayed in this case, and FIG. 3 shows the structure of the body data unit.

The operation of the present invention is as follows. Pressing the menu key among the keys 10 displays the total table of contents program. The program information is displayed by pressing one of the numeric keys 1 to 6 (N) of the keys 10, and if there is an auxiliary table of contents, this is repeated. Press the memory key of the key 10, and set the service category, program number, page number, etc. to the preset key (X)
Is written to the preset address (X) corresponding to. The character code string in the body data unit of the page data of the general table of contents or the auxiliary table of contents is checked, and the character code string of the program title as shown in FIG.

After the writing to the memory, to display the program information, press the preset key (X). The program title character string written in the preset address (X) is displayed for a certain period of time or until a key operation such as page feed is performed before displaying information. Displays program information. Thereafter, the above operation is repeated as necessary.

The program title may be displayed in a different size depending on the number of characters in the program title character string. For example, if the program title is 8 characters or less, the character size may be changed to double width and height, or 15 characters or less. If so, it is as if it is a double height.

Next, a second embodiment of the present invention will be described. In the present invention, when the table of contents screen is displayed, the body data unit of the page data is not output, and the
At the first key input of keys 1 to 6 (N), a program title name of a program option having the same value as N is extracted from the character code string in the body data unit, and is synthesized and output, and then the same key (N) is input Then, the program selection is confirmed and the display screen is switched, so that the program selection is audibly assisted by the speech synthesis output, and the above problem can be solved.

The operation in such a configuration is as follows. Pressing the menu key among the keys 10 displays the table of contents program. Press one of the numeric keys 1 to 6 (N) of the keys 10.
A title check is performed by the first input. The character code string in the body data unit of the table of contents program is checked, and only the program title character code string as shown in FIG. 5 is transferred to the Japanese processing unit 12 and finally corresponds to the first key (N) Then, only the displayed program title name is output as speech synthesis. The selection is confirmed by inputting the same key (N) again. That is, the selection is determined by the second input. If the second input is a different key, repeat ~. The jump destination program information specified by the key (N) is displayed.

The CPU 8 transmits the displayed data unit to the Japanese language processing unit 12. The Japanese processing unit 12 converts the character code string of the character information using the Japanese dictionary ROM 13
It is converted into a word / phrase phonetic symbol string,
Reads out the phoneme data of the phonetic symbol from the phoneme ROM 15 and superimposes them, synthesizes and outputs voice data, and the digital / analog conversion circuit 16
Converts digital audio signals output by
The audio amplifier and the speaker 17 amplify the analog signal, convert the analog signal into an audio signal, and output the audio signal.

In this manner, the voice which has been output as "1 program information, 2 news and sports" or the like by the input of the menu key in the present invention is replaced with the input of the menu key and the key (1) in the present invention. , The sound is output as "No. 1 program information" and the key (2) is input as "No. 2 news and sports".

Note that "N" ( _space ) (program title character code string) is _added before and after the program title character code string.
Thus, a modified character string may be added and transferred to the Japanese processing unit 12.

Next, a third embodiment of the present invention will be described. The present invention uses the program number of the new or updated received data to select the table of contents program and the body data of the page data to output the program title displayed on the table of contents by voice and receive the data. Is presented.

The operation of the present invention is as follows. The table of contents program is received and stored in the memory 9. It receives newly received program data or data that has already been received and whose contents have been updated, and temporarily stores the program number (P). The selection control data of the table of contents program is checked, and the key input number (N) (N = 1 to 6) where the jump destination number = P is temporarily stored. Check the character code string of the body data unit in the page data of the table of contents program, and (N) (APB) (N)… (program title character code string)… (N + 1) (APB) (N + 1)… …
... A program title character code string is obtained. Note that N (= 1 to 6) is a JIS code for display here, so N = 31 to 36. A character string such as “(Program title character code string) was received” or “(……) was updated” is added to the character code string acquired in step 2 and transferred to the Japanese processing unit 12. Finally, the program title name is output as sound to present the data reception message.

In the above description, when a specific Si (program information) (for example, Si = 1) or a specific program number (for example, 255, emergency information) is received, it is omitted.
A fixed character code string such as "program information received" or "emergency information received" may be directly transferred to the Japanese processing unit 12 to obtain a speech synthesis output.

[0037]

As described above, according to the first embodiment of the present invention, in the preset memory operation of the program information, the program title displayed in the table of contents program is added to the conventional information and stored, and the program is stored again. When displaying the information, the program title is displayed prior to the information display, so that the user does not need to remember the program title written in the memory.
It is possible to enhance security in information retrieval such as ICS traffic information retrieval.

Further, according to the second aspect of the present invention, in the program selecting method using the text-to-speech synthesizing apparatus, only the program title displayed as an option in the table of contents screen is synthesized and output. Since the selected program is checked after confirming the program options one by one without looking at the screen, the safety at the time of program selection, such as selection of a traffic information program while running on the in-vehicle equipment, is improved, and the program selection is facilitated. be able to.

[0039]

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a circuit of the present invention.

FIG. 2 is a display example of a display screen of the present invention.

FIG. 3 is a configuration diagram of a character string of a text data unit according to the present invention.

FIG. 4 is a configuration diagram of a character string of a text data unit according to the present invention.

FIG. 5 is a configuration diagram of a character string of a text data unit according to the present invention.

[Explanation of symbols]

8 CPU (control unit) 10 key 11 Display device 12 Japanese processing department 13 Japanese dictionary ROM 14 Voice synthesis processing unit 15 phoneme ROM

Claims (2)

(57) [Claims] 1. FM broadcast transmission of FM multiplex broadcast program information
Separated from the signal, demodulated and displayed on the display device,
FM multi-function that outputs character information in information by voice synthesis
In a multi- broadcast receiver , a plurality of keys having a unique key number and
Preset memory means for storing program information
For example, the by a specific key operation in storing the program information
The predetermined information in the text data unit of the character information in the information
The character code string is treated as a program title, and the service category is
The keys, along with the program, program number, page number, etc.
Preset memory to store program information corresponding to
Before writing the page data information when writing to the column and displaying it again
F that displays the recorded program title.
M multiplex broadcast receiver. 2. An FM multiplex broadcast receiver that separates and demodulates information of an FM multiplex broadcast program from an FM broadcast signal, displays the demodulated information on a display device, and outputs text information in the information by voice synthesis. A program information preset memory unit including a plurality of keys having numbers, wherein a character code string following a key number display data string for guiding key input in a body data unit of character information in the information is treated as a program title An FM multiplex broadcast receiver characterized by outputting a program title character code string of a specific key number as voice in response to an input of a specific number key as a voice synthesis output during display of a table of contents screen.