JPH09102754A - Fm teletext transceiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To select programs with a small number of key operations by securing the correspondence between the display coordinates and the destination page number, destination program number and service identification number respectively and storing these corresponding items in the address of a memory. SOLUTION: A storage address 1 is set and the display coordinates X1 is detected out of the display coordinates X1 and Y1 stored in the address 1. The presence or absence is decided for the storage address having the display coordinates X1 and Ym excluding the address 1. If the corresponding address exists, only the area where the additional numbers stored in the address 1 is inverted and displayed for output and display of a table of contents. If no corresponding address exists, the entire area of the line where the additional numbers stored in the address 1 is displayed is inverted and displayed for output and display of the table of contents. In such a way, the initial display of the table of contents is outputted and given to a display device 10. Then the table of contents is outputted and displayed based on the data stored in the address 1, and the programs are selected in the ascending order of additional numbers.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an FM character for receiving digital data of a table of contents (program menu) transmitted in FM character multiplex broadcasting, supplementary information of main audio, and independent programs such as news and weather forecast. The present invention relates to a multiple broadcast receiver.

[0002]

2. Description of the Related Art Conventionally, when a table of contents transmitted by FM character multiplex broadcasting is output and displayed on a display device, an additional number added to each program in the table of contents and the additional number are added to the display device. When the display coordinates indicating the position to be output and displayed, the destination page number indicating the destination to each program, the destination program number, and the service identification number are stored in a storage address provided in advance in the memory in association with each other, Since the table of contents data is stored in the order of sending, the correspondence between the additional number and the storage address where the additional number is stored is not necessarily the same.

When selecting a program, the display position in the table of contents of the selected program is confirmed, and the currently highlighted area is moved to the display position by using, for example, four keys such as a cross key. You are operating to

The reverse display is used to indicate which program is to be selected.
As shown in 4, 15, and 16, only the area in which the additional number (1 in FIG. 14, 2 in FIG. 15, and 3 in FIG. 16) of the program is displayed is highlighted (the character and the background are reversed). The table of contents is output and displayed.

[0005]

As described above, the cross key or the numeric key for inputting the storage address is used as a selection key for selecting a program. These keys are arranged. There is a problem in that the space to be used becomes large and the program selection operation is complicated.

As described above, since the additional number stored in the storage address changes depending on the order of sending the table of contents data, it is not always possible to select programs in ascending or descending order of the additional number.

Next, in order to show the selected program, only the area in which the additional number of the program is displayed is highlighted and the table of contents is simply output and displayed to identify which program is to be selected. It is difficult to do and the visibility is poor.

In view of this, the present invention first reduces the number of keys for selecting a program to two or less so as to reduce the space for arranging them and simplify the program selection operation.
A first object of the present invention is to provide an FM teletext broadcast receiver capable of selecting programs in ascending or descending order of the additional numbers regardless of the order of sending the table of contents data.

A second object of the present invention is to provide an FM teletext broadcast receiver with improved visibility for identifying which program is being selected.

[0010]

In order to achieve the above object, according to the present invention, when a table of contents transmitted by FM character multiplex broadcasting is output and displayed on a display device, it is added to each program in the table of contents. The associated additional number, the display coordinates indicating the position where the additional number is output and displayed on the display device, the destination page number indicating the destination of each program, the destination program number, and the service identification number are associated with each other and stored in the memory. When the data is stored in the storage address provided in advance, the data is stored in the storage address corresponding to the additional number.

By doing so, it is possible to select programs in ascending or descending order of the additional numbers with a few key operations.

Further, it is detected whether or not another program is displayed in the line in which the selected program is displayed in the table of contents, and if it is displayed, the additional number of the selected program is displayed. If only the area is highlighted and the table of contents is output, and if it is not displayed, the entire area of the line is highlighted and the table of contents is output and displayed. This improves the visibility of identifying the program to be selected.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an example of a block diagram of an FM text multiplex broadcasting receiver that realizes the present invention. An antenna 1 that receives FM text multiplex broadcasting, an FM tuner unit 2 that performs FM detection and stereo demodulation, and an FM tuner unit. A multiplex signal demodulation unit 6 for demodulating multiplex data signals such as voice signals and character signals multiplexed from the detection output of 2, and a μ-con 8 to which the data signal output from the multiplex signal demodulation unit 6 is input, Operation keys 7 that can input various commands to the μ-con 8, a display device 10 that outputs and displays data information according to the control of the μ-con 8, and a character corresponding to the data to be displayed on the display device 10. And a font ROM 9 storing

The FM detection output output from the FM tuner unit 2 is output to the multiplex signal demodulation unit 6 and also output from the audio output speaker 13 as analog audio via the multiplexer 12. The multiple signal demodulation unit 6 includes a BPF (bandpass filter) 3 for extracting the sub broadcast data signal in the multiple data signal from the FM detection output input from the FM tuner unit 2, and the extracted sub signal. The demodulation circuit 4 for demodulating the broadcast data signal and the sub-broadcast data and the synchronization CLOCK sent from the demodulation circuit 4 are input and the error correction circuit 5 corrects an error in the data.

The sub-broadcast data error-corrected by the error correction circuit 5 is input to the μ-con 8, and these data are stored in the memory 11 provided in the μ-con 8 and
The controller 8 converts these stored data into characters by the font ROM 9 according to an instruction from the operation keys 7, and outputs and displays them on the display device 10.

FIG. 2 shows the display format of the table of contents transmitted by FM character multiplex broadcasting. In the present embodiment, the display format 0 among them will be used for description. FIG. 3 shows an example of a program of FM text multiplex broadcasting. The programs have a hierarchical structure, and there is a table of contents for selecting a program one level below. In the table of contents, there are program interlocking, news, and weather forecast as layer 1, each of which has an additional number.
Further, the news has a table of contents for selecting headline news, sports news, and economic news as the layer 2, and each has an additional number like the layer 1.

As a method of displaying the actual table of contents of the program contents using the display format shown in FIG. 2, the contents are displayed as shown in FIG. 4 in this embodiment.
The operation until the table of contents is displayed on the display device 10 is shown in the flowchart of FIG.

First, when the index key for displaying the table of contents on the display device 10 is pressed (S51), the additional number added to each program in the table of contents and the additional number are output and displayed on the display device 10. Clear the data stored in the storage address provided in advance in the memory 11 that stores the display coordinates indicating the position, the destination page number indicating the destination to each program, the destination program number, and the service identification number in association with each other. Yes (S52).

Then, the decoding of the table-of-contents data is started (S53). At this time, in order to distinguish the additional number from other numerical data, the control code APB is set to the table of contents as shown in FIG. It is performed by using a key selection control format sandwiched between two numeral codes having the same value as the additional number of the program being data-decoded, and the presence or absence of three codes of numeral code, APB and numeral code is detected. Yes (S54, 55,
56).

If at least one of the above three codes does not exist, nothing is stored in the storage address, but if all of the above three codes exist, the numerical code n and the numerical code n shown in FIG. 10 are displayed. The display coordinates (Xn, Yn) indicating the position displayed on the device 10 are associated with the destination page number, the destination program number, and the service identification number indicating the destination of the program having the numeral code n as the additional number. Memory 1
1 is stored in the storage address provided in advance, it is stored in the address corresponding to the additional number. However, in the present embodiment, as shown in FIG. 9, a storage address having the same value as the additional number is stored. It is supposed to be stored (S
57).

The program to be the table of contents has data for displaying the table of contents and data (program selection control unit) for controlling program selection shown in FIG. 8B,
The program selection control unit includes the destination page number, the destination program number, and the service identification number, and when a table of contents program is decoded, the key-in having the same value as the additional number of the program to be selected from the table of contents is input. The destination page number, the destination program number, and the service identification number of the number are shown in FIG.
It is decrypted using the format shown in and stored in the storage address.

Then, the completion of decoding the table of contents data is detected (S58), and when the decoding is completed, the table of contents is output and displayed (S59), but in this embodiment, the initial display of the table of contents is as follows.
It is assumed that the table of contents is output and displayed with the data stored in the storage address [1]. The operation of output display of this table of contents is shown in the flowchart of FIG. First, the storage address
Set (attention) to [1] (S61), and its storage address
X1 of the display coordinates (X1, Y1) stored in [1] is detected (S62). Other than storage address [1] (X1, Ym)
It is determined whether or not there is a storage address having a display coordinate (S6).
3).

If the corresponding address exists, only the area in which the additional number stored in the storage address [1] is displayed is highlighted and the table of contents is output and displayed (S6).
4). If the corresponding address does not exist, the entire area of the line in which the additional number stored in the storage address [1] is displayed is highlighted and the table of contents is output and displayed (S6).
5). Even after the initial display of the table of contents, the key for selecting a program is operated and set to the storage addresses [2] and [3],
The table of contents is highlighted by the same operation as described above.

As described above, the initial display of the table of contents is output and displayed on the display device 10. For example, the UP key and the DO key are displayed.
If the WN key is provided in the operation key 7 and the storage address to be set changes each time the UP key is pressed during the display of the table of contents, and the order of change is determined, that is, in the case of the present embodiment. Then, the storage address [1] is set as the initial setting.
Since it is set to, the storage address [1] starts from the storage address [1] → every time the UP key is pressed →
By setting in the order of [2] → [3] → [1] → ..., the table of contents can be output and displayed with the data stored in the storage address, and the programs can be selected in the ascending order of the additional numbers.

Similarly to the UP key, the DOWN key stores the storage address [1] every time the DOWN key is pressed.
By setting in the order of [3] → [2] → [1] → ..., the table of contents can be output and displayed with the data stored in the storage address, and the programs can be selected in descending order of the additional numbers. Alternatively, only one of the UP key and the DOWN key may be provided in the operation key 7, and the program may be selected only in either the ascending order or the descending order of the additional numbers.

The table of contents of the layer 2 program shown in FIG. 3 is also the layer 1 program 2. When news is selected, it is output and displayed in the same manner as the table of contents of the layer 1 program, and the program can be selected.

[0027]

According to the present invention, when a table of contents transmitted by FM character multiplex broadcasting is output and displayed on a display device, an additional number added to each program in the table of contents and the additional number. Display coordinates indicating the position where is displayed on the display device,
Destination page number indicating the destination to each program, destination program number,
When the service identification numbers are associated with each other and stored in a storage address provided in advance in the memory, the number of keys for selecting a program is reduced to two or less by storing them in the storage address corresponding to the additional number. It is possible to reduce the space for arranging and to simplify the program selection operation, and select programs in ascending or descending order of the additional numbers regardless of the order of sending the table of contents data.

Further, it is detected whether or not another program is displayed in the line in which the selected program is displayed in the table of contents, and if it is displayed, the additional number of the selected program is displayed. If only the area is highlighted and the table of contents is output and displayed, if it is not displayed, the visibility of identifying which program you are trying to select is improved by displaying the table of contents by highlighting all the areas in the above line. can do.

[Brief description of the drawings]

FIG. 1 is a block diagram of an FM teletext broadcast receiver.

FIG. 2 is a diagram showing types of display formats of a table of contents.

FIG. 3 is a diagram showing an example of a program of FM text multiplex broadcasting.

FIG. 4 is a diagram showing a display example of a table of contents of a program of layer 1 shown in FIG. 3 on a display device.

FIG. 5 is a flowchart illustrating the operation of the embodiment.

FIG. 6 is a flowchart illustrating the operation of the embodiment.

FIG. 7 is a diagram showing a format of key selection control.

FIG. 8 is a diagram showing a destination page number, a destination program number, a format for decoding a service identification number, and a program selection control unit.

FIG. 9 is an image diagram in which each data is stored in a storage address.

FIG. 10 is a diagram illustrating display coordinates indicating a position where a number added to a program is displayed on a display device.

FIG. 11 is a diagram showing an output display of a table of contents on the display device according to the present invention when the program link is selected.

FIG. 12 is a diagram showing an output display of a table of contents on the display device according to the present invention when news is selected.

FIG. 13 is a diagram showing an output display of a table of contents on the display device according to the present invention when the weather forecast is selected.

FIG. 14 is a diagram showing an output display of a table of contents on a display device in a conventional example when program interlocking is selected.

FIG. 15 is a diagram showing an output display of a table of contents on a display device in a conventional example when news is selected.

FIG. 16 is a diagram showing an output display of a table of contents on a display device in a conventional example when a weather forecast is selected.

[Explanation of symbols]

 1 antenna 2 FM tuner section 3 B. P. F 4 Demodulation circuit 5 Error correction circuit 6 Multiplexed signal demodulation unit 7 Operation key 8 μ-con 9 Phantom ROM 10 Display device 11 Memory 12 Multiplexer 13 Voice output speaker

Claims (3)

[Claims] 1. When a table of contents transmitted by FM character multiplex broadcasting is output and displayed on a display device, an additional number added to each program in the table of contents and the additional number are output and displayed on the display device. When the display coordinates indicating the position to be stored, the destination page number indicating the destination to each program, the destination program number, and the service identification number are associated with each other and stored in a storage address provided in advance in the memory, the additional number is added. An FM text multiplexed broadcast receiver characterized by storing at a storage address corresponding to. 2. In the line in which the selected program is displayed in the table of contents,
If another program is displayed, it is detected, and if it is displayed, only the area in which the additional number of the selected program is displayed is highlighted and the table of contents is output and displayed. 2. The FM teletext broadcast receiver according to claim 1, wherein the entire area of the row is displayed in reverse video and the table of contents is output and displayed. 3. The program selection key according to claim 1, wherein at least one of a key for selecting a program in ascending order of the additional number and a key for selecting a program in descending order of the additional number is provided as a program selection key. The described FM character multiplex broadcasting receiver.