JPH10107663A - Method for displaying program selective screen in receiver for data broadcast system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display selective items for entire programs even when an indicator which does not have many display lines is used by recognizing a program number in each program selective item from data which constitutes a program selective picture to display each program selective item by switching picture. SOLUTION: When a user operates an operational part 11 and a program is selected, a CPU 7 decodes data of the selected program and shows it on a display device 10. When a menu picture is displayed, first, a choice is recognized from data which constitutes the first page of the menu picture and after that, each selective item is recognized. When a page ejection key is operated and selective items that are not shown yet exist, the next selective item is show. When the page ejection key is operated after the entire selective items included in the last page are shown, data that constitutes the first page is selected as a processing object.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to FM multiplex broadcasting,
The present invention relates to a method for displaying a program selection screen in a receiver of a data broadcasting system such as teletext broadcasting.

[0002]

2. Description of the Related Art As a display mounted on a receiver of an FM multiplex broadcasting system, a display generally having a display area for two lines and capable of displaying 15.5 full-width characters on each line is used. .

FIG. 6 shows an example of a program selection screen (menu screen) displayed on a conventional receiver. This example shows an example in which four programs exist. Also, in this example, the menu screen is composed of two pages, and on the first page, the selection item "1. Program information" is displayed on the first line, and the selection item "2. Traffic information" is displayed on the second line. Is displayed. On the second page, the selection item "3. News & Sports Program" is displayed on the first line, and the selection item "4. Weather forecast" on the second line.
Is displayed.

[0004] The first number in each selection item is used as a selection branch. For this reason, the number used as a selection is made up of data "" number "+ control code" APB "+" number "indicating left shift so as to be distinguished from a normal mere number.

[0005] The page turning of the menu screen is performed by, for example, an "UP" key. The selection of a program is performed by selecting a predetermined option using the numeric keys. Therefore, when the first page is displayed,
When "1" is input by the numeric keys, the program of the program information is selected.

In some cases, a program is selected by selecting a selection item with a cursor and pressing an execution key (for example, a "RET" key).

By the way, in order to reduce the size of the receiver, it is assumed that the receiver is equipped with a display having a display area of only one line capable of displaying 15 full-width characters or less, for example, 8 full-width characters.

In such a receiver, based on data for displaying a menu screen as shown in FIG.
When trying to display the menu screen, the following problem occurs.

When the data of the first page is displayed, FIG.
, Only the selection item “1. program information” on the first line of the data on the first page is displayed. When the page is turned by the "UP" key from this state, as shown in FIG. 8, only the selection item "3. News & Sports Program" on the first line of the data on the second page is displayed. . That is, the selection items on the second line of each page are not displayed. Also, as shown in FIG. 9, when the number of characters exceeds the number of characters that can be displayed on the display, such as the selection item corresponding to program number 3, a part of all the characters constituting the selection item is displayed. Only characters can be displayed.

The present invention provides a method of displaying a program selection screen in a receiver of a data broadcasting system capable of displaying options for all programs even when a display having fewer display lines than a conventional display is used. The purpose is to provide.

[0011]

Further, the present invention provides a receiver for a data broadcasting system capable of displaying selection items for all programs even when a display having fewer display lines than a conventional display is used. It is an object of the present invention to provide a method for displaying a program selection screen in the above.

[0012]

A method of displaying a program selection screen in a receiver of a first data broadcasting system according to the present invention recognizes a program number in each program selection item from data constituting the program selection screen. This is characterized in that each program selection item is displayed by switching the screen one item at a time.

The display screen of the program selection items is switched based on a page update operation by the user, or is automatically switched.

When the number of characters in the program selection item exceeds the number of characters that can be displayed on the display, it is preferable to scroll the program selection item. When the number of characters in the program selection item exceeds the number of characters that can be displayed on the display, characters other than the program number in the program selection item may be scroll-displayed.

A method of displaying a program selection screen in a receiver of the second data broadcasting system according to the present invention is a method of recognizing a program number in each program selection item from data constituting the program selection screen, and selecting all program selection items. Is displayed in a list.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, an embodiment in which the present invention is applied to a receiver of an FM multiplex broadcasting system will be described with reference to the drawings.

[1] Description of configuration of receiver

FIG. 1 shows the electrical configuration of the receiver.

The audio signal is reproduced through a stereo demodulation circuit 12, an amplifier 3 and a speaker 4 after a high frequency component is removed from an output signal of the FM tuner 1 by an LPF (low-pass filter) 2.

On the other hand, the bandpass filter (BPF) 5 removes the voice component and the noise component from the output signal of the FM tuner 1, and extracts a multiplexed signal (LMSK signal).
The extracted multiplexed signal is sent to the LMSK demodulation and error correction circuit 6.

The LMSK demodulation and error correction circuit 6 performs LMSK demodulation of the transmitted multiplex signal, performs synchronization detection and error correction processing, and converts the packet data into a CP.
Output to U7.

The CPU 7 rearranges data for each program based on the packet data sent from the LMSK demodulation and error correction circuit 6 and stores the data in the RAM 9. The ROM 8 stores a program for the CPU 7 and the like.

When a user selects a program by operating the operation unit 11 such as a remote controller, C is selected.
The PU 7 decodes the data of the selected program and displays it on the display 10 such as a liquid crystal display.

The display device 10 has a display area of only one line capable of displaying eight full-width characters.

[2] A method of displaying a program selection screen (menu screen) will be described.

Here, it is assumed that the data constituting the menu screen is composed of data of the first page and data of the second page as shown in FIG. The data on the first page includes data related to the selection item “1. program information” and the selection item “2.
The data on the second page includes the selection item “3. News & sports program "and data on selection item" 4. And data on "weather forecast".

The first number in each selection item is used as a selection. For this reason, the number used as a selection is made up of data "" number "+ control code" APB "+" number "indicating left shift so as to be distinguished from a normal mere number.

In this embodiment, as shown in FIG.
The display 10 displays selection items one by one. That is, data for two pages is displayed separately on four pages.
Paging is performed by a paging key (for example, an “UP” key).

FIG. 3 is a diagram showing a state in which a menu screen is displayed when a CP is displayed.
9 shows a display processing procedure executed by U7.

When the menu screen is displayed, first, each selection item is recognized by recognizing a selection from data constituting the first page of the menu screen (step 1). In this example, the selection item “1. program information” and the selection item “2. traffic information” are recognized. Recognition of the selection is performed by a control code “APB” representing “number” + left shift.
This is performed by searching for data composed of "+" number "".

Next, the first selection item among the recognized selection items is displayed on the display 10 (step 2).
That is, as shown in FIG. 2, the selection item “1.
Is displayed.

When the page feed key is operated (step 3), it is determined whether or not there is a selection item that has not been displayed among the selection items recognized in step 1 (step 4). If there is a selection item that has not been displayed yet, the next selection item is displayed (step 5). In this example, the selection item “2. Traffic information” is displayed on the display 10. Then, the process returns to step 3.

Thereafter, when the page feed key is operated (step 3), it is determined whether or not there is a selection item not yet displayed among the selection items recognized in step 1 (step 4). . If it is determined in step 4 that there is no selection item that has not been displayed yet, data constituting the next page is selected as processing target data (step 6), and the process returns to step 1.

Then, based on the data constituting the second page of the menu screen, the processing after step 1 is executed again. Therefore, in this example, in step 2, the selection item "3. News & Sports Program" is displayed, and when the page turning key is operated thereafter, the selection item "4. Weather forecast" is displayed.

If the page feed key is operated after all the selection items included in the last page are displayed, after the data constituting the first page is selected as the data to be processed, Return to 1.

It should be noted that, as in the case of the selection item "3. News & sports program", the number of display characters constituting the selection item is
If the number of characters that can be displayed on the display 10 is exceeded,
It is preferable that all characters are displayed by scroll display until the screen is switched. At this time, it is preferable to scroll only characters other than the program number which is a selection.

In order to select a program displayed on the display device 10, for example, a selection of the program may be selected by a numeric key. Further, when a selection item is displayed on the display device 10, the execution key (for example, “RE
By pressing the "T" key), the program may be selected.

In the above embodiment, the screen is switched based on the operation of the page feed key.
The screen may be automatically switched.

FIG. 4 is a diagram showing a case where a CP is displayed when a menu screen is displayed.
13 shows another display processing procedure executed by U7.

When displaying the menu screen, first, selection options are recognized from data constituting all pages of the menu screen (step 11). The data constituting all the pages of the menu screen includes the selection items “1.
2. 2. Traffic information, selection items 3. News & sports program and selection item “4. If the data is composed of data relating to “weather forecast”, options “1”, “2”, “
3 "and" 4 "are recognized.

Then, a list of all recognized options is displayed (step 2). FIG. 5 shows a display example in this case.

In order to select a program corresponding to the option displayed on the display 10, it is sufficient to select the option of the program using the numeric keys. After the predetermined selection is highlighted by the cursor, when the execution key (for example, the “RET” key) is pressed, the highlighted program may be selected.

[0044]

According to the present invention, it is possible to display options for all programs even when a display having fewer display lines than a conventional display is used.

Further, according to the present invention, it is possible to display the selection items for all programs even when a display having fewer display lines than the conventional display is used.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an electrical configuration of a receiver.

FIG. 2 is a schematic diagram showing a display example of a menu screen.

FIG. 3 is a flowchart showing a procedure for displaying a menu screen by a CPU.

FIG. 4 is a flowchart showing another display processing procedure of the menu screen by the CPU.

FIG. 5 is a schematic diagram showing an example of a menu screen displayed by the display processing procedure of FIG.

FIG. 6 is a schematic diagram showing a display example of a conventional menu screen.

FIG. 7 is a schematic diagram showing a display example of the first page when a display device having fewer display lines than a conventional display device is used.

FIG. 8 is a schematic diagram showing a display example of a second page when a display having fewer display lines than a conventional display is used.

FIG. 9 is a schematic diagram showing a display example when the number of characters constituting the selection item exceeds the number of characters that can be displayed on the display.

[Explanation of symbols]

 Reference Signs List 1 FM tuner 5 BPF 6 LMSK demodulation and error correction circuit 7 CPU 8 ROM 9 RAM 10 Display 11 Operation unit

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI H04N 7/03 7/035 (72) Inventor Kanji Nakano 2-5-5 Keihanhondori, Moriguchi-shi, Osaka SANYO Electric Software Wear Co., Ltd.

Claims (6)

[Claims] 1. A program in a data broadcasting system receiver for recognizing a program number in each program selection item from data constituting a program selection screen, thereby displaying each program selection item by switching the screen one by one. How to display the selection screen. 2. The method for displaying a program selection screen in a receiver of a data broadcasting system according to claim 1, wherein a display screen of program selection items is switched based on a page update operation by a user. 3. The method according to claim 1, wherein the display screen of the program selection items is automatically switched. 4. The data broadcasting system receiver according to claim 1, wherein when the number of characters of the program selection item exceeds the number of characters that can be displayed on the display, the program selection item is scroll-displayed. Display method of program selection screen in. 5. The program according to claim 1, wherein when the number of characters in the program selection item exceeds the number of characters that can be displayed on the display, characters other than the program number in the program selection item are scroll-displayed. A method for displaying a program selection screen in a receiver of a data broadcasting system according to the present invention. 6. A program selection screen of a data broadcasting system receiver for recognizing a program number in each program selection item from data constituting a program selection screen and displaying only a list of program numbers of all program selection items. Display method.