JPH1065560A - Fm multiplex receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To store the multiplex information of FM multiplex broadcast in a small memory capacity without trouble by storing all certain specified program data and storing the other program data just for prescribed pages when classifying information into a prescribed program. SOLUTION: A microcomputer 12 for various kinds of control inside a receiver and a program data memory 13 for storing the FM multiplex data are used. When the FM multiplex data are received, it is checked whether the data for all the pages are the data of a specified program to be stored or not and when they are the data of the specified program, the data are stored for all pages. When they are the data excepting for the specified program, it is checked whether prescribed pages are stored or not and when the prescribed pages are not stored, they are stored. When the prescribed pages are stored, it is checked whether they are the data for the stored pages or not. In the case of stored pages, these data are overwritten and stored but when these data are not the stored pages, processing is finished without storing them.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an FM multiplex receiver for receiving an FM multiplex broadcast in which a digital signal different from a main program is multiplexed and transmitted, and more particularly to a memory configuration thereof.

[0002]

2. Description of the Related Art FIG. 19 is a block diagram of a conventional FM multiplex receiver, wherein 1 is an antenna for receiving an FM broadcast wave, 2 is an FM tuner for selecting a specific FM broadcast wave,
3 is a detection circuit for extracting an RF signal from the selected FM broadcast wave, 4 is a demodulation circuit for demodulating multiplexed data from the detected signal, 5 is a decoding circuit for performing error correction and decoding of the demodulated multiplexed data signal, 6 is a microcomputer for performing various controls in the receiver, 7 is a program data memory for storing FM multiplexed data, 8 is an operation unit for selecting a desired FM receiving station and desired program data, and 9 is a selected program data. An image processing circuit for converting to an image signal, 10 is a display for displaying the image signal, and 11 is a P for setting a frequency of a desired FM receiving station.
LL circuit.

Next, the operation will be described. Antenna 1,
An example of FM multiplexed data obtained through the FM tuner 2, the detection circuit 3, the demodulation circuit 4, and the decoding circuit 5 has a configuration as shown in FIG. FIG. 20 simulates multiplex data of FM Tokyo. The configuration in FIG. 20 is a configuration of a main menu program, a submenu program, and a content program. In some cases, a submenu program is not included.
The data of each program is sent serially in any order. The microcomputer 6 classifies the FM multiplexed data having the configuration as shown in FIG. 20 for each program and stores it in the program data memory 7. The capacity of the program data memory 7 is such that the maximum number of pages of the content program is normally 63 pages, so that the FM multiplexed data of "the number of predetermined content programs × 63 pages + the number of pages of the main menu and the sub-menu" can be stored. I have. However, the number of programs differs depending on the broadcasting station.
In some cases. At this time, a program that is larger than the planned number of programs (= the number of programs with predetermined contents) is not stored.

[0004] Depending on the storage method, a missing page may be temporarily generated in the received FM multiplex data depending on the transmission method and the reception environment. Considering such a state, it can be generally said that the received FM multiplexed data is not stored in the first-come-first-served order but is stored for each program while determining whether the data is a storable program data. The data stored in the program data memory 7 is
In accordance with an instruction from the operation unit 8, the microcomputer 6 performs control to read data of a specific program from the program data memory 7. The read specific program data is stored in the image processing circuit 9.
Is converted into an image signal and displayed on the display 10.

The operation of the above conventional example will be described with reference to a storage flowchart of FIG. 21 and a read flowchart of FIG. In FIG. 21, when FM multiplexed data is received, it is checked whether or not it is data of a program determined to be stored in the program data memory 7 (S21-1). If the program data is determined to be stored, the program data is stored (S2
1-2), if the data is for a program that has not been determined to be stored, it is checked whether there is a vacancy in the number of programs that can be stored (S21-3). If there is a vacancy in the number of programs, it is stored (S21-2), and if there is no vacancy, it is not stored (S2-2).
1-4). The selection of whether or not to store, for example, whether to store a predetermined number of programs from the youngest program number,
There is a method of storing a predetermined number of programs from a younger item number in a main menu program and a submenu program.

Next, in FIG. 22, when a program to be displayed is selected (S22-1), it is checked whether or not the selected program is a stored program (S22-2). In the case of a stored program, data is read from the program data memory 7 and displayed (S22-3). If the selected program is not a stored program, one of the stored programs is deleted (S22-4), and the data of the selected program is received and stored according to the storage flowchart of FIG. 21 (S22-).
5) After returning to the step of checking whether the selected program is a stored program (S22-2), data is read from the program data memory 7 and displayed (S22-).
3).

[0007]

Since the conventional FM multiplex receiver is configured as described above, it is necessary to set the program data memory capacity to the expected number of content programs which may be broadcasted in the future. The example of the FM multiplexed data in FIG. 20 is “header sentence (broadcasting station name, etc.) + Text (actual contents)
In the case of FM multiplexed data that displays a deformed figure or the like in the body of eight lines or the body of eight lines, the data amount is different, but the configuration is the same as that of FIG. Therefore, in the FM multiplex receiver corresponding to the FM multiplex data of two lines of the body and eight lines of the body, it is necessary to increase the capacity of the program data memory.

As means for reducing the memory capacity, for example, Japanese Patent Laid-Open Publication No. Hei 6-252790 discloses an available FM multiplex broadcast program identification code list in a first storage unit and an identification code list of a selected program in a second storage unit. A method of reducing the program data memory capacity by means for storing program data of a selected program in the third storage unit in the storage unit is adopted. However, when such a method is adopted, or when the memory capacity is reduced without employing such a method, the following problems occur.

When the data of the content program selected by the operation unit 8 is not stored in the program data memory 7 (when a content program different from the first schedule is designated), the data of the selected content program is obtained and then displayed. That is, the display timing is delayed. Since the data of each program is sent serially, the display timing changes each time.

According to the present invention, as described above, (a) it is necessary to prepare a large amount of program data memory capacity, so that the cost of the receiver increases and the component space increases. (A) When the program data memory capacity is restricted, the display timing of the selected program may be delayed. It is an object of the present invention to provide an FM multiplex receiver which can cope with a small program data memory capacity in the future and has no delay in display timing of a selected program.

[0011]

An FM multiplex receiver according to the present invention includes a program data memory for storing FM multiplex data and a microcomputer for controlling the program data memory, and transmits information such as news, weather information, traffic information, and the like. When the program is classified into the above-mentioned programs, all the program data of a specific program and the data of the program other than the specific program for only a predetermined page are stored in the program data memory.

Further, the programs to be stored are all "table of contents programs" indicating the classification of information.

[0013] Further, the programs to be all stored are a "table of contents program" indicating the classification of information and a "selected program" selected for display.

[0014] Further, the programs to be stored all include a "table of contents" indicating the classification of information, a "selected program" selected for display, and a "previous selected program" selected for display last time. It was done.

Further, the programs to be stored are all referred to as a "table of contents program" indicating the classification of information and a "selected program" selected for display, and are displayed during the operation of the FM multiplex receiver before the last power-off. The “displayed program before power-off” is included in the “selected program”.

The programs to be stored are all "table of contents programs" indicating the classification of information and "first received programs" which can be received first.

[0017] Further, the program to be stored all is a "designated program" registered by the operator as the program to be stored all.

Further, the programs to be stored all include a "table of contents" indicating the classification of information, a "selected program" selected for display, and a "designated program" registered by the operator as a program to be stored all. It was done.

Further, the predetermined number of pages to be stored can be changed according to the number of programs transmitted by the receiving broadcasting station.

Further, the predetermined number of pages to be stored can be changed in accordance with the number of received programs.

Further, the predetermined number of pages to be stored is set to the first to n-th pages.

The predetermined number of pages to be stored can be changed according to the total number of pages of each program.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. FIG. 1 is a block diagram showing an FM multiplex receiver according to the present invention. The structure is the same as that of the conventional example shown in FIG.
A program data memory 13 for storing multiplexed data is different from the microcomputer 6 and the program data memory 7 of the conventional example. The operation of the memory configuration of the present invention including this difference will be described with reference to the storage flowchart of FIG. 2 and the read flowchart of FIG. When FM multiplexed data is received, it is checked whether or not the data is of a specific program in which data of all pages is to be stored (S2-1). In the case of data of a specific program, data of all pages is stored (S2-2). In the case of data other than the specific program, it is checked whether or not a predetermined number of pages have been stored (S2-3). If the number has not been stored, it is stored (S2-4). If the predetermined number of pages has been stored, it is checked whether or not the data is of the stored page (S2-5). The page is stored (S2-6), and if the page is not a stored page, the process ends without storing.

Next, in FIG. 3, when a program to be displayed is selected by the operation unit 8 (S3-1), it is checked whether or not the program is a specific program stored in all pages (S3-2). If the selected program is a specific program, data is read from the program data memory 13 and displayed (S3-3). If the selected program is not a specific program, the program data memory 1
The data of a predetermined number of pages stored in No. 3 is read out and displayed (S3-4). That is, when the program selected to be displayed is a specific program, all pages can be immediately displayed without delay in display timing. If the program selected to be displayed is not a specific program, the stored page is immediately displayed for the time being, and the remaining data is received, stored and displayed during this time. Therefore, the display timing of all programs can be displayed without delay.

Next, the total memory capacity in the FM multiplex receiver will be described with reference to FIGS. FIG. 4 is a conceptual diagram of a conventional total memory capacity, which has a memory capacity of “the number of programs × the total number of pages permitted in the standard”.
FIG. 5 is a conceptual diagram of the total memory capacity according to the first embodiment of the present invention, and the memory of “specific program × total number of pages allowed in the standard + (number of programs−specific program) × predetermined number of pages” Will have the capacity. The hatched area in FIG.
This is the difference between the memory capacities of FIG. 4 and FIG. The method for obtaining the predetermined number of pages will be described with reference to Embodiment 3 as a representative example. An example of the external appearance of the FM multiplex receiver will be described with the seventh embodiment as a representative example.

Embodiment 2 FIG. FIG. 6 is a flowchart for storing FM multiplexed data according to the second embodiment of the present invention. The block configuration in the FM multiplex receiver is the same as that in FIG. 1 of the first embodiment. The reading flowchart is the same as that in FIG. 3 of the first embodiment. In the second embodiment shown in FIG. 6, a specific program (a program in which all program data is to be stored) in the first embodiment is replaced with a program indicating information classification, that is, a main menu program shown in FIG.
This is a “table of contents program” which is a submenu program, and the other points are the same as those in the first embodiment. Generally, these “table of contents programs” have a configuration of several pages, but it is possible to cope with a configuration of a larger number of pages in the future by setting the “table of contents program” as a specific program.

Embodiment 3 FIG. 7 is a flowchart for storing FM multiplexed data according to the third embodiment of the present invention. The block configuration in the FM multiplex receiver is the same as that in FIG. 1 of the first embodiment. The reading flowchart is the same as that in FIG. 3 of the first embodiment. In the third embodiment shown in FIG. 7, the specific program in the first embodiment is a “table of contents program” and a “selected program” selected to be displayed. Same as in the first mode. Therefore, even when moving from the reception area to the non-reception area, all pages of the “selected program” can be displayed continuously.

A calculation example for obtaining the value of the predetermined number of pages is shown below. Condition 1) Data other than a predetermined page can be continuously displayed. 2) The transmission cycle of all FM multiplex data is 2.5 minutes. 3) Data read time of 2 lines x 15.5 characters of body text is 6
Seconds. Calculation formula Since 2.5 minutes is given by the predetermined number of pages (= n), n = 150 seconds (transmission cycle) ÷ 6 seconds (reading time) = 2
It becomes 5. However, since data has actually been received before the lapse of 2.5 minutes, there is no problem even if "25" or less.
The inventor considers that there is no problem if one minute is given by a predetermined number of pages (= n) based on experience. The predetermined number of pages at this time is “10”.

Next, the total memory capacity in the FM multiplex receiver will be described with reference to FIG. FIG. 8 is a conceptual diagram of the total memory capacity according to the third embodiment of the present invention, wherein “(table of contents program + selected program) × total number of pages allowed in the standard +
(The number of programs−2) × the predetermined number of pages ”. The hatched area in FIG. 8 is the difference between the memory capacity of FIG. 4 (conceptual diagram of the total memory capacity of the conventional example) and the memory capacity of FIG.

Embodiment 4 FIG. 9 is a flowchart for storing FM multiplexed data according to the fourth embodiment of the present invention. The block configuration in the FM multiplex receiver is the same as that in FIG. 1 of the first embodiment. The reading flowchart is the same as that in FIG. 3 of the first embodiment. In the fourth embodiment shown in FIG. 9, the specific programs in the first embodiment are referred to as a “table of contents”, a “selected program” selected to be displayed, and a “previous selected” selected last time to be displayed. Program ", and the other points are the same as in the first embodiment. Therefore, it is possible to store and display all the page data of the previously selected program which is highly likely to be selected for the next display.

Embodiment 5 FIG. 10 is a flowchart for storing FM multiplexed data according to the fifth embodiment of the present invention. The block configuration in the FM multiplex receiver is the same as that in FIG. 1 of the first embodiment. The reading flowchart is the same as that in FIG. 3 of the first embodiment. In the fifth embodiment shown in FIG. 10, the "power program" displayed before turning off the power of the FM multiplex receiver in the "selected program" selected for display in the third embodiment. The display program before OFF is included, and the other points are the same as those in the third embodiment. Therefore,
When the power of the FM multiplex receiver is turned on, all page data of the program displayed before the power was turned off can be stored and displayed without resetting.

Embodiment 6 FIG. FIG. 11 is a flowchart for storing FM multiplexed data according to the sixth embodiment of the present invention. The block configuration in the FM multiplex receiver is the same as that in FIG. 1 of the first embodiment. The reading flowchart is the same as that in FIG. 3 of the first embodiment. In the sixth embodiment shown in FIG. 11, the specific program in the first embodiment is a “table of contents program” and a “first received program” that can be received first after the power of the FM multiplex receiver is turned on. The other points are the same as in the first embodiment.
Therefore, when the power of the FM multiplex receiver is turned on, it is possible to store and display all the page data of the program that can be obtained as soon as possible.

Embodiment 7 FIG. 12 is a flowchart for storing FM multiplexed data according to the seventh embodiment of the present invention. The block configuration in the FM multiplex receiver is the same as that in FIG. 1 of the first embodiment. The reading flowchart is the same as that in FIG. 3 of the first embodiment. In the seventh embodiment shown in FIG. 12, the specific program in the first embodiment is a “designated program” registered in advance by an operator as a program for storing all the program data. Same as in the first mode. Therefore, the operator can specify the selection of a specific program, and can store and display all page data of the program that the operator often has a chance to normally display.

Next, the operation and operation of the seventh embodiment will be described with reference to FIG. 13 which is an example of the appearance of an FM multiplex receiver. First, the POWER button is pressed to activate the FM multiplex receiver, and the TUNE-UP / DOWN button is operated to set the reception frequency. At this time, the reception frequency is displayed on the display, and the volume of the FM sound is adjusted with the Vol knob. The reception frequency can be set by operating the preset memory buttons to (11).

Next, the multiplex button (12) is pressed to switch the display content of the display from the reception frequency display to the FM multiplex data display. When the FM multiplex data is received, the first page (= FIG. 13) of the main menu (see FIG. 20)
(B)) is displayed. When the main menu is displayed, one of the numbers of the displayed program is blinking. At this time, if the selection button (16) is pressed, the program with the blinking No number is selected, and the data (contents) of the selected program is displayed. If there is a submenu,
The same operation will be repeated. To change the page of the program data to be displayed, operate the Λ button (14) and the V button (15). To switch the program to be displayed, press the menu button
Press (13) to display the main menu. Next, press the button (1
4) Operate the V button (15) to move the blinking No number,
Press the select button (16).

The above is the basic operation and operation. Hereinafter, a procedure for setting all pages / predetermined pages for each program will be described. Press the all-page button (17) to store all pages of the program whose No. number is blinking, and press the predetermined page button (18) to store the predetermined page. The following buttons (14), V button
By operating (15), the blinking No. number is moved, and by the same operation as described above, the setting of storing all pages / predetermined page is set for each program. When the frame of the program for storing all pages is full, a display indicating that "the frame for storing all pages is full" may be shown on the display.

Embodiment 8 FIG. FIG. 14 is a flowchart for storing FM multiplexed data according to the eighth embodiment of the present invention. The block configuration in the FM multiplex receiver is the same as that in FIG. 1 of the first embodiment. The reading flowchart is the same as that in FIG. 3 of the first embodiment. In the eighth embodiment shown in FIG. 14, the specific program in the first embodiment is referred to as a “table of contents program” and a “selected program” selected for display (= third embodiment). The setting of storing all pages / predetermined pages can be made for each program. Other points are the same as in the third embodiment.

Thus, the "table of contents program" and all the page data of the "selected program" selected for display can be stored and displayed, and the remaining programs can be stored in all pages / predetermined pages. Can be specified by the operator,
It is possible to store and display all page data of a program that the operator often has a chance to normally display.

Embodiment 9 FIG. 15 is a flowchart for storing FM multiplexed data according to the ninth embodiment of the present invention. The block configuration in the FM multiplex receiver is the same as that in FIG. 1 of the first embodiment. The reading flowchart is the same as that in FIG. 3 of the first embodiment. In the ninth embodiment according to FIG. 15, the predetermined number of pages in the first embodiment is changed according to the number of programs being serviced by the receiving broadcasting station. The other points are the same as in the first embodiment.

The operation will be described with reference to the storage flowchart of FIG. When FM multiplexed data is received, the number of programs being serviced by the receiving broadcasting station is checked (S
15-1) The predetermined number of pages is changed according to the number of programs being serviced (S15-2). Next, it is checked whether it is data of a specific program (S15-3). In the case of specific program data, data of all pages is stored (S15-
4) If it is data other than a specific program, it is checked whether a predetermined number of pages has been stored (S15-5). If the predetermined number of pages has not been stored, it is stored (S15-6).
If the predetermined number of pages has been stored, it is checked whether or not the data is data of a stored page (S15-7). If the data is a stored page, it is overwritten and stored (S15-8). Exit without doing. Therefore,
Since the predetermined number of pages is changed according to the number of programs serviced by the broadcasting station, a fixed memory capacity can be used more effectively regardless of the number of programs being serviced. Further, even if the number of programs to be serviced in the future increases, the "immediate display with a small memory capacity" of the present invention becomes possible.

Embodiment 10 FIG. FIG. 16 is a flowchart for storing FM multiplexed data according to the tenth embodiment of the present invention. The block configuration in the FM multiplex receiver is the same as that in FIG. 1 of the first embodiment. The reading flowchart is the same as that in FIG. 3 of the first embodiment. FIG.
In the tenth embodiment, the predetermined number of pages in the first embodiment is changed in accordance with the number of received programs. For other points, the first embodiment
Is the same as

The operation will be described with reference to the storage flowchart of FIG. When FM multiplexed data is received, it is checked which program data the data is (S16-1), and the predetermined number of pages is changed according to the number of received programs (S16-).
2). Next, it is checked whether it is data of a specific program (S16-3). In the case of data of a specific program, data of all pages is stored (S16-4), and in the case of data other than the specific program, it is checked whether a predetermined number of pages have been stored (S16-5), and the predetermined page is stored. If the number has not been stored, it is stored (S16-6). If the predetermined number of pages has been stored, it is checked whether or not the data is of the stored page (S16-7). The page is stored (S16-8), and if the page is not a stored page, the process ends without storing. Therefore, the predetermined number of pages is changed according to the number of received programs, so that the fixed memory capacity can be used more effectively.

Embodiment 11 FIG. FIG. 17 is a flowchart for storing FM multiplexed data according to the eleventh embodiment of the present invention. The block configuration in the FM multiplex receiver is the same as that in FIG. 1 of the first embodiment. The reading flowchart is the same as that in FIG. 3 of the first embodiment. FIG.
In the eleventh embodiment, the predetermined number of pages in the first embodiment is changed from the first page to the n-th page. The other points are the same as in the first embodiment.

The operation will be described with reference to the storage flowchart of FIG. When FM multiplexed data is received, it is checked whether or not the data is of a specific program (S17-1). In the case of specific program data, data of all pages is stored (S
17-2), for data other than a specific program, 1 to n
It is checked whether it is the data of the page (S17-3),
If the data is other than the first to n-th pages, the process ends without storing the data, and if the data is the first to n-th pages, the process is stored (S17-
4). Therefore, even when a program other than a specific program is selected,
Display from the first page becomes possible. Alternatively, data of other pages may be temporarily stored for the time being within the range in which the first to n-th pages cannot be received.

Embodiment 12 FIG. FIG. 18 is a flowchart for storing FM multiplexed data according to the twelfth embodiment of the present invention. The block configuration in the FM multiplex receiver is the same as that in FIG. 1 of the first embodiment. The reading flowchart is the same as that in FIG. 3 of the first embodiment. FIG.
In the twelfth embodiment, the predetermined number of pages in the first embodiment is determined for each program according to the total number of pages of each program. The other points are the same as in the first embodiment.

The operation will be described with reference to the storage flowchart of FIG. When the FM multiplex data is received, it is checked whether or not the data is of a specific program (S18-1). In the case of specific program data, data of all pages is stored (S
18-2) If the data is other than a specific program, the number of total pages is checked (18-3), and a predetermined number of pages is determined according to the total number of pages (S18-4). Next, it is checked whether the predetermined number of pages determined for each program has been stored (S18-5). If the predetermined number of pages has not been stored, it is stored (S18-6), and the predetermined number of pages has been stored. In the case of (1), it is checked whether the data is of a stored page (S18-7). If the data is a stored page, the data is overwritten and stored (S18-8). If the data is not a stored page, the process ends without storing. Therefore, even if the total number of pages is different, the ratio that can be displayed immediately can be the same.

[0047]

As described above, according to the present invention, when FM multiplex data is stored in the program data memory in the FM multiplex receiver, the data of a specific program is stored in all pages, and the data of a program other than the specific program is stored. Since the data is stored on a predetermined page, the program data memory capacity can be reduced (=
Even if a program other than a specific program is selected for display, it can be displayed immediately, and the remaining data is received while displaying the data in the program data memory.
There is no problem at all. Further, even if the number of programs to be serviced in the future changes, the program data memory can be used effectively.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the internal configuration of an FM multiplex receiver according to the present invention.

FIG. 2 is a storage flowchart illustrating a procedure for storing FM multiplexed data according to the first embodiment of the present invention;

FIG. 3 is a read flowchart showing a procedure for reading FM multiplexed data according to the first embodiment of the present invention;

FIG. 4 is a conceptual diagram of a total memory capacity showing a conventional total memory capacity.

FIG. 5 is a conceptual diagram of a total memory capacity showing a total memory capacity according to the first embodiment of the present invention;

FIG. 6 is a storage flowchart showing a procedure for storing FM multiplexed data according to the second embodiment of the present invention.

FIG. 7 is a storage flowchart showing a procedure for storing FM multiplexed data according to the third embodiment of the present invention.

FIG. 8 is a conceptual diagram showing a total memory capacity according to a third embodiment of the present invention.

FIG. 9 is a storage flowchart showing a procedure for storing FM multiplexed data according to Embodiment 4 of the present invention.

FIG. 10 is a storage flowchart showing a procedure for storing FM multiplexed data according to Embodiment 5 of the present invention.

FIG. 11 is a storage flowchart showing a procedure for storing FM multiplexed data according to Embodiment 6 of the present invention.

FIG. 12 is a storage flowchart showing a procedure for storing FM multiplexed data according to Embodiment 7 of the present invention.

FIG. 13 is an external appearance example diagram showing the external appearance of the FM multiplex receiver of the present invention.

FIG. 14 is a storage flowchart showing a procedure for storing FM multiplexed data according to the eighth embodiment of the present invention.

FIG. 15 is a storage flowchart showing a procedure for storing FM multiplexed data according to Embodiment 9 of the present invention.

FIG. 16 is a storage flowchart showing a procedure for storing FM multiplexed data according to the tenth embodiment of the present invention.

FIG. 17 is a storage flowchart showing a procedure for storing FM multiplexed data according to Embodiment 11 of the present invention.

FIG. 18 is a storage flowchart showing a procedure for storing FM multiplexed data according to Embodiment 12 of the present invention.

FIG. 19 is a block diagram showing the internal configuration of a conventional FM multiplex receiver.

FIG. 20 is a diagram illustrating a program configuration example showing an actual example of FM multiplex data.

FIG. 21 is a storage flowchart showing a conventional procedure for storing FM multiplexed data.

FIG. 22 is a reading flowchart showing a conventional procedure for reading FM multiplexed data.

[Explanation of symbols]

1 antenna, 2 FM tuner, 3 detection circuit, 4
Demodulation circuit, 5 decoding circuit, 8 operation section, 9 image processing circuit, 10 display, 11 PLL circuit, 12 microcomputer, 13 program data memory.

Claims (12)

[Claims] 1. An FM multiplex receiver for receiving an FM multiplex broadcast in which a digital signal different from a main program is multiplexed and transmitted on an FM broadcast, a program data memory storing FM multiplex data, and a microcomputer controlling the program data memory When information to be transmitted is classified into programs such as news, weather information, traffic information, etc., all program data of a specific program
An FM multiplex receiver characterized by storing only predetermined pages of program data other than a specific program in the program data memory. 2. The program according to claim 1, wherein the programs to be stored are all "table of contents programs" indicating the classification of information.
M multiplex receiver. 3. A program that stores all programs, a "table of contents program" indicating a classification of information, and a "selected program" selected for display.
2. The FM multiplex receiver according to claim 1, wherein: 4. A program that stores all programs, a “table of contents program” indicating a classification of information, and a “selected program” selected for display.
2. The FM multiplex receiver according to claim 1, wherein a "previous selected program" selected for display last time. 5. A program for storing all programs, a "table of contents" indicating a classification of information and a "selected program" selected for display.
2. The FM according to claim 1, wherein a "displayed program before power-off" displayed during the operation of the FM multiplex receiver before the previous power-off is included in the "selected program".
Multiplex receiver. 6. A program that stores all programs, a "table of contents" indicating a classification of information, and a "first received program" which can be received first.
2. The FM multiplex receiver according to claim 1, wherein: 7. The FM multiplex receiver according to claim 1, wherein the programs to be stored are all “specified programs” registered by the operator as the programs to be stored. 8. A program that stores all programs, a "table of contents program" indicating a classification of information, and a "selected program" selected for display.
2. The FM multiplex receiver according to claim 1, wherein a "specified program" registered by an operator as a program to be stored is stored. 9. The FM multiplex receiver according to claim 1, wherein a predetermined number of pages to be stored can be changed according to the number of programs transmitted by the receiving broadcasting station. 10. The FM multiplex receiver according to claim 1, wherein a predetermined number of stored pages can be changed according to the number of received programs. 11. The FM multiplex receiver according to claim 1, wherein the predetermined number of pages to be stored is the first to n-th pages. 12. The FM multiplex reception apparatus according to claim 1, wherein the predetermined number of stored pages can be changed according to the total number of pages of each program.