KR100529320B1 - Method and apparatus for editing the preference page of tele text - Google Patents

Abstract

Disclosed are a method and apparatus for editing a teletext preferred page for selecting and viewing a preferred page among teletext broadcasts. According to the present invention, if the teletext mode is requested while extracting the teletext information from the received broadcast signal, the display is sequentially displayed on a page basis, and if the teletext page editing mode is requested, the display process is stopped and the extracted text is extracted. Displaying index information corresponding to the classification item of the teletext on the screen, and sequentially displaying pages corresponding to the classification item selected from the displayed items.

Description

Method and apparatus for editing the preference page of tele text

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a teletext receiving system for displaying a teletext signal, and more particularly, to a method and apparatus for editing a teletext preferred page for selecting and viewing a preferred page among teletext broadcasts.

In general, teletext broadcasts include news and economic news, economic industry, sports, tourism and leisure, cultural arts, life / science / women, broadcasting, securities, and special information. In addition, 4H is used as a digital signal in the line except for the line used for the VITS (Vertical Interval Test Signal) and the GCRS (Ghost Cancel Reference Signal) during the vertical retrace period of the video signal.

As a method of converting image information composed of characters or figures into a digital signal and superimposing them on the image signal, a pattern method of transmitting characters or figures as pixels and a code of converting characters and figures into characters or figures code), a fast transmission method, and a hybrid method utilizing the advantages of a pattern method capable of transmitting a large amount of information.

For teletext broadcasting, the broadcasting station divides various information into fields while editing a regular program, edits it into hundreds of pages like a magazine, assigns page numbers to each screen, and then displays all the screens in the specified order. It transmits in the form of digital signal. The receiving side sequentially displays all pages of digital signals appearing only in the vertical retrace period.

Therefore, you can not see the news except the news time with the regular program, but at any time by receiving a text broadcast, you can select the page with the news to see the news.

In order to receive such a character multicast, a television must be equipped with a device (character decoder) necessary for receiving a character multicast, or such a device must be connected to the television from the outside.

Conventional teletext functions display on the screen in page number order. At this time, if there is a specific content that the user wants to see, there is an inconvenience of finding the page number by several key manipulations and then entering the number directly or moving to the corresponding page through manipulation such as page up / down.

SUMMARY OF THE INVENTION The present invention has been made in an effort to provide a method and an apparatus for editing a text page in which a preferred page of a teletext broadcast is edited and viewed.

In order to solve the above technical problem, in the television text receiving system of the present invention,

(a) if the teletext mode is requested while extracting the teletext information from the received broadcast signal, displaying the screen sequentially in page units;

(b) stopping the display process when the teletext page editing mode is requested, and displaying index information corresponding to the category of the teletext extracted in the process on the screen;

and (c) sequentially displaying pages corresponding to the selected category among the displayed items.

In order to solve the above other technical problem, in the broadcast receiving system for receiving a broadcast signal containing teletext information,

A video signal processor for demodulating and detecting a composite video signal among the tuned broadcast signals;

A teletext decoder that decodes teletext information by separating the teletext information signal in a vertical blanking period of the composite video signal demodulated and detected by the video signal processor;

When the preferred page editing mode is requested, the microtext decoder displays a classification item and its checkmark in the OSD by referring to the index information of the decoded text, and outputs pages of the selected item among the displayed classification items. It is characterized by including.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a block diagram of a television receiving apparatus to which a method for editing a preferred page of teletext according to the present invention is applied.

The tuner 120 outputs a broadcast signal received by being tuned to a channel corresponding to the control of the microprocessor 110. In this case, the teletext is recorded in the vertical retrace period (10H to 21H period) of the video signal. In general, teletext broadcasting has large categories such as weather, stocks, and economy, and its contents are spread over several pages.

The video signal processor 130 demodulates and detects a composite video signal among broadcast signals applied from the tuner 120 and outputs the composite video signal to the synthesizer 170 and the teletext decoder 150.

The OSD unit (On Screen Display) 140 is a character screen display means for outputting the OSD text signal corresponding to the teletext item information of the microprocessor 110 and its check mark. A ROM, a ROM storing a program for controlling the OSD character display, a RAM for operating a program for controlling the OSD character display, a timing unit for timing the horizontal / vertical position of the OSD, and the microprocessor 110. The display generator is configured to display and control an OSD character based on a control signal for OSD character size conversion and OSD character type selection to output an RGB signal and a vertical blanking signal.

The teletext decoder 150 separates the teletext information signal in the vertical return period of the composite video signal demodulated and detected by the image signal processor 130 and outputs the decoded digital character information to the microprocessor 110.

The teletext output unit 160 outputs the corresponding teletext information to the synthesizer 170 under the control of the microprocessor 110 according to the user's selection of the teletext mode.

The synthesizing unit 170 synthesizes the outputs of the OSD unit 140, the teletext output unit 160, and the image signal processing unit 130 according to the signal selection signal output from the microprocessor 110 and outputs them to the CRT 180. do.

The microprocessor 110 controls the overall operation of the television based on the key signal from the key input unit 112, the broadcasting method information stored in the memory 114, and the like. The teletext output unit 160 is controlled to output the teletext information to the CRT 180 when the user requests it. In particular, when a preference page editing function is requested from the key input unit 112, a classification item is extracted using BTT information of the teletext, the item information is output to the OSD unit 140, and among the classification items displayed by the OSD. Only pages of the selected item are extracted and output to the teletext output unit 160.

The key input unit 112 inputs a teletext mode command and various operation related commands to the microprocessor 110. In particular, the key input unit 112 includes keys corresponding to channel up / down / channel numbers and selects a desired item from the displayed teletext information.

2 is a flowchart illustrating a method of editing a preferred page of teletext according to the present invention. A flowchart will be described with reference to FIGS. 3A and 3B.

First, a broadcast signal including the teletext information is received in the vertical retrace period, and the composite video signal is demodulated and detected in the broadcast signal (step 210).

Next, the teletext information in the vertical retrace period of the demodulated and detected composite video signal is extracted and stored in units of pages (step 220).

Subsequently, it is checked whether the teletext mode is requested by the teletext mode setting button (not shown) provided in the key input unit 112 such as a remote controller (step 230).

Subsequently, if the teletext mode is requested, the first page of the teletext is sequentially displayed (step 232). In this case, it is checked whether the preference page editing mode is input by the preference page editing mode setting button (not shown) provided in the key input unit 112 (step 240). If the preferred page editing mode is not requested, all pages of the teletext information are sequentially displayed on the screen (operation 250).

In addition, when the preferred page editing mode is requested, the teletext display process is interrupted, and only the classified items are extracted by referring to BTT (Basic Top Table) information corresponding to the index information among the teletext information, and the classified items are displayed on the OSD (On Screen Display). In step 260, the data is displayed on the screen. The BTT is information about a major category and the pages linked to it.

For example, if the teletext mode and the preferred page editing mode are sequentially turned on while watching the ABC station 10 CH, classifications such as "politics", "economy", "weather", and "stock" as shown in FIG. The OSD listing the items is displayed.

Subsequently, a desired item is selected while moving the cursor using the up / down button of the remote controller among the classified items displayed on the screen (step 270). For example, in order to view only the information desired by the user, the items “political” and “stock” are selected as shown in FIG. 3B. In another embodiment, after selecting a preferred page editing mode, an OSD, such as "page reorganization", is displayed for a certain period of time for the user's convenience. You can also add a feature to make it disappear.

Subsequently, all pages corresponding to the item selected by the user are loaded and displayed on the screen (step 280). For example, when the "politics" item is selected, only pages related to "politics" are loaded among all pages. That is, if the content related to the "politics" item is in the 200-250 pages and the content related to the "stock" item is in the 500-510 pages, the first page on the screen is 2000 pages. After viewing all the pages from 200 to 250, if you move to the next page by button operation, 500 pages will appear immediately. If you move to the next page after viewing up to 510 pages, you will return to page 200 again.

Meanwhile, in order to set and release the preference page editing mode, a predetermined procedure must be performed. That is, the preference page editing mode is released by deleting a check mark of an item to be released among items already set in the preference page editing mode. In this case, after displaying a notification OSD indicating that the entire page is being reorganized, the OSD is removed after a predetermined time (the time when the reorganization is completed), and the reorganized first page is displayed on the screen.

Subsequently, preference page editing is continued from the key input unit 112 until the teletext mode ends (step 290).

The present invention is not limited to the above-described embodiment, and of course, modifications may be made by those skilled in the art within the spirit of the present invention.

The invention can also be embodied as computer readable code on a computer readable recording medium. The computer-readable recording medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, hard disk, floppy disk, flash memory, optical data storage device, and also carrier waves (for example, transmission over the Internet). It also includes the implementation in the form of. The computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion.

As described above, according to the present invention, by editing and displaying a preferred page of the teletext broadcast, the user does not need to know the page number of the teletext in order to find the desired information. can see.

1 is a block diagram of a television receiving apparatus to which a method for editing a preferred page of teletext according to the present invention is applied.

2 is a flowchart illustrating a method of editing a preferred page of teletext according to the present invention.

3A and 3B illustrate an embodiment of a screen for editing a preference page of FIG. 2.

Claims (6)

A method for editing a teletext preferred page in a television receiving system, (a) if the teletext mode is requested while extracting the teletext information from the received broadcast signal, displaying the screen sequentially in page units; (b) stopping the page-based display process when the teletext preference page editing mode is requested, and displaying a classification item corresponding to the index information of the teletext extracted in the process on the screen; and (c) displaying pages linked to the selected category item each time a specific item is selected from the displayed items. The method of claim 1, further comprising displaying an OSD indicating that the page of the teletext is being reorganized when the category item displayed on the screen is selected by a predetermined operation, and deleting the OSD after a predetermined time. A method for editing a teletext preferred page. The method of claim 1, wherein the category information is BTT (Basic Top Table) information of teletext. The method of claim 1, wherein when receiving the page edit cancel mode, a check mark of an item to be released is deleted from the set items, an OSD corresponding to a realignment notification is displayed, and after a predetermined time, the OSD is removed and the reorganized page is displayed on the screen. Teletext preferred page editing method further comprising the step of displaying. In the broadcast receiving system for receiving a broadcast signal containing teletext information, A video signal processor for demodulating and detecting a composite video signal among the tuned broadcast signals; A teletext decoder that decodes teletext information by separating the teletext information signal in a vertical blanking period of the composite video signal demodulated and detected by the video signal processor; When the preferred page editing mode is requested, the teletext decoder displays the classified item and its checkmark on the OSD by referring to the decoded index of the teletext, and when a specific item is selected from the displayed classified items, the page of the selected item is selected. And a microprocessor unit for outputting the text. The apparatus of claim 5, further comprising an OSD unit for outputting a classification item and a check mark extracted from the microprocessor unit as an OSD text signal.