JPH04170183A - Teletext signal receiver - Google Patents

Abstract

PURPOSE:To select an object program with a few key operations by displaying immediately number after a setting key is depressed when the program number is displayed on a teletext pattern. CONSTITUTION:When an index number is selected and extracted, a control section 3 sets an index program detection section 12 and the state is written in a header section/text section discrimination section 13 in response to the processed data. After the index program is displayed, when a key entry section 11 depresses a key for display revision request at a part of the program number display, the control section 3 moves on a flashing position. When the key is sequentially depressed, program numbers are selected and displayed one after another, and a key to select the displayed and revised program number is depressed at an object program number, a program having the object program number is retrieved and displayed. Thus, the object program is selected with a few key operation.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a display device for character and graphic information such as teletext.

A standard called Level A has already been put into practical use for text broadcasting using a conventional technology encoding transmission method.

The above-mentioned teletext broadcast has the 000 program number as its table of contents. A normal teletext receiver that does not have a reserved program setting etc. immediately searches for and displays the teletext table of contents program (000 program) of the set channel immediately after the power is turned on.

FIG. 6 shows a conventional example of a teletext receiver. (2) is a data extraction unit for extracting teletext data from the video signal. Reference numeral 2 denotes an error correction unit that performs error correction on the data from the data extraction unit 1 and stores the data in units of superimposition H. 3 is a control section for controlling the entire teletext receiver.

4 is a work RAM for performing control processing of the control unit 3;
/<This is a RAM section for use as a buffer RAM. 5
The R functions as a program ROM that stores programs or data for operating the control unit.
This is the OM department. Reference numeral 6 denotes a character generation unit having a character font for generating characters corresponding to the teletext code. 7
is the key human resource for users to make requests to teletext receivers.

When the user selects a table of contents program from the key human power section 7, the control section 3 searches the data stored in the error correction section 2 for data having a program number of 000 in order to select the table of contents program. When the search number is found, each data packet is processed, the character code is detected, and the character font data is extracted from the character generation section 6.

Reference numeral 8 denotes a display memory section for storing data of this character font and continuously displaying the data.

Reference numeral 9 denotes a display side control section for generating addresses for writing character font data into the display memory section 8, generating addresses for data bus control and display reading, and synthesizing and generating data bus control video signals. Reference numeral 10 denotes a display consisting of a CRT (cathode ray tube) or the like for displaying the video signal from the display control section 9.

FIG. 7 shows an example of a table of contents screen for teletext broadcasting. Teletext currently uses horizontal scanning lines 14H, 15H, 16H and 21H.

If a broadcasting station is broadcasting teletext, but both the station itself and a third party are broadcasting teletext, the table of contents for teletext is (900 programs) instead of (000 programs). FIG. 8 shows an example of the table of contents screen. The table of contents screen in Figure 8 is called a -blanket program, and does not display multiple pages individually (
The data is sent all at once, and the next page can be displayed by pressing the page key ">". FIG. 9 shows a display example of two pages of the table of contents screen for the teletext broadcast.

In teletext broadcasts by third-party corporations, (000 programs) is used as the table of contents program. An example is shown in FIG. In this way, the original table of contents number (000 program) serves as the door or cover of the teletext broadcast, and the program number shown on the cover serves as the table of contents. An example is shown in FIG. When selecting the program number shown in these figures 7, 9, 2, 10, and 11,
In a conventional teletext receiver, the user manually enters the three-phase program number and then presses the # key, which is an entry key.

Problems to be Solved by the Invention When a user selects a table of contents program as shown in Figure 7, the user selects a program with program number 870, even though the program number is displayed on the screen in a conventional teletext receiver. If you select 8.7, 0. I had to press the four # keys.

Similarly, when selecting a table of contents program as shown in Figure 9, the user selects the program with program number 901 even though the program number is displayed on the screen in a conventional teletext receiver. It was necessary to press four keys: , 9.0, 1°#.

In this way, the user had to press the key four times even though the program number had already been sent in the code and was recognized inside the teletext receiver. As a result, there are problems such as the complexity of pressing numbers, the inconvenience of having to select the table of contents number again due to incorrectly pressing a number and incorrectly displaying the selection number, and the time it takes to reach the target program. Ta.

These factors led to a lack of familiarity with teletext, which hindered the spread of teletext.

The present invention solves these problems and provides a teletext receiver that is easier to operate and use.

Means for Solving the Problems The teletext receiver of the present invention has a means for determining a table of contents program, a means for determining a header part and a body part, a means for determining a # code from data within the body part, and a means for determining a # code from data in the body part. means for previously determining a numerical code indicating an accompanying program number; means for storing the position on the screen where the program number and # are displayed; input means for selecting the program number in the table of contents screen; It has means for characterizing and displaying the position on the screen where the program number and # are displayed, and means for selecting an arbitrary program number and # display on the screen.

According to the present invention, when a program number is displayed on the teletext screen using the means described above, when the setting key is pressed, the program number is immediately displayed and the program number can be selected with few key operations. You can select the desired program.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 shows a teletext receiver in one embodiment of the present invention. Note that in FIG. 1, components having the same numbers as those in the conventional example shown in FIG. 6 have the same functions, and detailed explanations will be omitted.

Reference numeral 11 is a key for a user who has a key that, when pressed while a table of contents program is displayed, requests a change in the display of the part where the program number is displayed, and a key that allows the user to select any part where the program number whose display has been changed is displayed. This is a key input section for making requests to the teletext receiver.

12 is a table of contents program detection unit for detecting that the program is a table of contents program. The display screen is divided into a header section and a body section, and 13 is a header section/body section discriminating section for determining whether data is from the header section or the body section. 14 is a # code discrimination section. 15 is a program number/position correspondence table for storing program number code data and its display position in the main body part.

When the user selects the table of contents number from the key human resource section 11,
In order to select a table of contents program, the control section 3 searches the data stored in the error correction section 2 for data having an OOO program number. When the search number is found, each data packet is processed, the character code is detected, character font data is taken out from the character generation section 6, and written into the display memory section 8 via the display control section 9. The written content is
The display control section 9 reads out data from the display memory section 8, converts it into a video signal, and displays it on the display 10.

-10= An example of the table of contents screen is shown in Figure 2. FIG. 2 shows the header section and the body section.

The control section 3 detects that the display screen is a table of contents program and sets the table of contents program detection section 12. The header/body portion discriminator 13 is used to determine which one is currently being processed when both the header section and the body section contain # as shown in Figure 2. , the state is written by the control unit 3.

When the table of contents number is selected and detected, the control section 3 sets the table of contents program detection section 12 to detect the header section and the table of contents program detection section 12 according to the processing data.
The state is written into the body part determination section 13. If the # code is detected, and the body part is determined by the header part/body part discrimination unit 13, the numerical code and its display position for the program preceding the # code are written in the program number/position correspondence table 15. .

After the table of contents program is displayed, when a key is pressed by the key human power section 11 to request a change in the display of the part where the program number is displayed when pressed while the table of contents program is being displayed, the control section 3 sends a request from the table of contents number detection section 12. It detects that the table of contents program is being displayed, and then determines the display position of the program number displayed in the screen text section from the program number/position correspondence table 15, and then displays the program number section as shown in Figure 3. The display is changed. In contrast to FIG. 2, the area surrounded by a frame in FIG. 3 performs a flushing operation. The hatched portion of 100# performs flushing in a phase opposite to the others. Next, when a key is pressed again from the key human power unit 11 while the table of contents program is being displayed to request a change in the display of the part where the program number is displayed, the next program number 200# is pressed as shown in FIG. becomes reverse phase flushing. 10
The 0# part is positive phase flushing. When this key is pressed one after another, program numbers are selected and displayed one after another. When the user reaches the target program number and presses a key that can select any part of the displayed program number, the program having the target program number is immediately searched and displayed. When pressed in FIG. 4, weather forecast number 200# is selected. Note that even if these keys are pressed during a program other than the table of contents program, they are ignored.

As shown in FIGS. 9 and 11, the program number Oo.

Other programs may also provide program number guidance like a table of contents program. An embodiment of the present invention for such a case is shown in FIG.

Note that in FIG. 5, components having the same numbers as those in the invention example shown in FIG. 1 have the same functions, and detailed explanations will be omitted.

In FIG. 5, 16 is a program number holding program detection unit that is set when a program whose main text includes a program number on the display screen is detected by the control unit 3. It is.

Reference numeral 17 refers to a user who has a key that, when pressed while a program with a program number is displayed, requests a change in the display of the area where the program number is displayed, and a key that allows the user to select any area where the program number whose display has been changed is displayed. is the key human resource for making requests to teletext receivers. After the program with the program number is displayed, when the key is pressed by the key human power unit 17 while the program is being displayed, a request is made to change the display of the part where the program number is displayed.When the key is pressed, the program with the program number detection unit 16 is pressed.
The status is detected, and the display position of the program number displayed in the main text part of the screen is determined from the program number/position correspondence table 15, and the display of the program number is changed in the same way as in the case shown in Fig. 3. .

When the user reaches the target program number and presses a key that can select any part of the displayed program number, the program having the target program number is immediately searched and displayed. Note that pressing these keys during a program other than the program having the program number will be ignored.

Effects of the Invention According to the present invention, when a program number is displayed on the teletext screen using the above-mentioned means, pressing the setting key immediately displays the program number, and by selecting it, fewer keys are displayed. You can select the desired program by operating the button.

Furthermore, since the key operation is simplified, the operability is greatly improved, and it is possible to prevent manual key mistakes, which is an extremely outstanding effect.

The present invention aims to improve the operability of a teletext receiver, and in one embodiment of the present invention, flashing in both forward and reverse phases was used when selecting a program number, but it is possible to change the coloring of the display. Alternatively, it goes without saying that the same effect can be obtained by a combination of flushing and coloring and is included in the present invention. Furthermore, the present invention also includes a case where the teletext data is changed so that the program number can be selected by using a cursor display on a different display system to indicate the program number sequentially by key operation without going through the procedure of indicating the program number. Needless to say, it can be done.

Also, if you press the key with normal pressure instead of multiple key operations, the program number display will start and the program number display will move, and if you press the key with strong pressure, you will be able to search for the selected program. Needless to say, the present invention also includes a case where the process is started.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a teletext receiver according to the first embodiment of the present invention, FIGS. 2 to 4 are plan views showing examples of teletext table of contents screens, and FIG. Block diagram showing the configuration of the teletext receiver in the second embodiment, No. 6
1 is a block diagram showing the configuration of a conventional teletext receiver, and FIGS. 7 to 11 are plan views showing display examples of programs including a table of contents and program numbers of teletext broadcasts. 1... Data extraction unit, 2... Error correction unit, 3... Control unit, 4... RAM unit,
5...ROM section, 6...Character generation section,
8...Display memory unit, 9...Display control unit, 10...Display, 11...
Key human power department, 12...Table of contents program detection department, 13.
...Header section/body section discrimination section, 14...
#Code discrimination unit, 15...Program number/position correspondence table, 16...Program number holding program detection unit, 17.
...Key human resources department. Name of agent: Patent attorney Haruaki Koebi and 2 others 000 Morihousou 900 keys oZ10. s
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Claims (4)

[Claims] (1) A means for determining the table of contents program indicated by the 000 program number, a means for determining the header section and the body section, a means for determining the # code from data within the body section, and a means for indicating the accompanying program number prior to the # code. means for determining the numerical code; means for storing the position on the screen where the program number and # are displayed; input means for selecting the program number in the table of contents screen; a means for characterizing and displaying the position on the screen where the program is located, and a means for selecting an arbitrary program number and # display on the screen, and immediately after selection, the desired program is searched and displayed. Broadcast receiver. (2) means for discriminating between a header section and a body section; a means for discriminating a # code from data within the body section to determine a program for guiding a program number; means for determining and storing the detection; means for determining a numerical code indicating a program number accompanying the # code; and means for storing the program number and the position on the screen where the # is displayed. , an input means for selecting a program number on the screen of a program included in the main text section, a means for characterizing and displaying the position on the screen where the program number and # are displayed, and an arbitrary program number on the screen. and # A teletext receiver having means for selecting a display, and immediately searching for and displaying a desired program after selection. (3) means for distinguishing between a header section and a body section; a means for discriminating a # code from data within the body section to determine a program for guiding a program number; means for determining and storing the detection; means for determining a numerical code indicating a program number accompanying the # code; and means for storing the program number and the position on the screen where the # is displayed. , an input means for selecting the program number on the screen of the program included in the main text section, and displaying the position on the screen where the program number and # are displayed by pointing with a cursor or the like without changing the program data. A teletext receiver comprising: means for selecting an arbitrary program number and # display on the screen, and immediately searching for and displaying a desired program after selection. (4) The input means has a first input means for selecting a program number on the screen, and a second input means capable of operating a plurality of means for selecting an arbitrary program number and # display on the screen. A teletext receiver according to claim 1, 2 or 3, characterized in that: