KR100296974B1 - Apparatus and method for searching teletext page of wide television - Google Patents

Abstract

PURPOSE: An apparatus and a method for searching a teletext page of a wide television are provided to extend and display a page where a cursor is located on an auxiliary screen of a wide screen whenever a user moves the cursor so as to allow the user to easily search pages. CONSTITUTION: An apparatus for searching a teletext page of a wide television includes a teletext signal extraction unit(30) for extracting a teletext signal from a video signal, and a receiver(40) for receiving only a requested page among pages output from the teletext signal extraction unit according to output data of a controller. The apparatus further includes a memory interface(50) for writing and reading page data received by the receiver in/from the first memory(60) and for writing and reading a page list generated by a computer(10) in/from the second memory(70), and a switch(80) for selecting data corresponding to the page list and page contents output from the first and second memories and providing the selected data to a character generator(90).

Description

Text multi-page navigation device and method for optical screen television

The present invention relates to a text multi-page navigation apparatus and method thereof for an optical screen television, and more particularly, to list pages transmitted in a 4: 3 screen area, where the cursor is positioned whenever a user moves a cursor on the screen. The present invention relates to a text multi-page navigation apparatus and a method for allowing a user to easily navigate a page by enlarging and displaying a page on an auxiliary screen.

The teletext (text multiplex) receiving apparatus of the optical screen television generally used is configured as shown in Fig. 1, and displays the received text multiple pages on the optical screen television so as to have the screen state as shown in Fig.2.

When a user inputs corresponding data to search for a multi-text page using the receiving apparatus illustrated in FIG. 1, the computer 1 may control the command data to receive (scan) and display the input page data. Supplies).

However, in the teletext receiving apparatus employed in the conventional optical screen television configured as described above, when display command data is supplied from the computer 1 as described above, the control unit 2 extracts the teletext signal contained in the video signal. To transmit the page data so that the receiver 4 receives the output of the teletext signal extractor 3 for outputting the data including the character multiple code, and simultaneously receives the data received by the memory interface 15 from the page memory ( 6) When writing and reading data is supplied to write and read out, the input page data is supplied to the character generator 7 and displayed on the full screen as shown in FIG. There was a problem to enter.

Accordingly, the present invention has been made to solve the above problem, and an object of the present invention is to list the text multipages included in the video signal and to transmit the page where the cursor is located whenever the user moves the cursor on the screen. The present invention provides a text multi-page navigation apparatus and method for an optical screen television, which enlarges the screen so that the user can easily navigate the page so that the user does not input page data for page navigation.

1 is a block diagram showing a teletext receiving apparatus employed in a conventional optical screen television.

FIG. 2 is a screen state diagram of displaying a text multiple page in the optical screen television shown in FIG.

3 is a block diagram showing a teletext receiving apparatus according to the present invention

4 is a screen state diagram of displaying a multi-page text in an optical screen television employing the present invention;

5 is another screen state diagram of displaying a multi-page text in the present invention optical screen television;

6 is another screen state diagram of displaying a multi-page text in the present invention optical screen television;

7 is a flowchart illustrating a text multi-page searching method according to the present invention.

Explanation of symbols on the main parts of the drawings

10 computer 20 control unit

30: teletext extractor 40: receiver

50: memory interface unit 60: first memory

70: second memory 80: switching unit

90: character generator

In order to achieve the above object, the text multi-page searching method of the present invention comprises the steps of: storing page data received when a user selects a page search mode in a designated location of the first storage means, and storing in the first storage means. When the page is completed, a page list is generated by using the page numbers of the received page data, and the page list is stored in the designated location of the second storage means. And positioning the cursor at the first page number to display a page list, and displaying the page contents of the page number at which the cursor is positioned to be doubled on any designated subscreen among a plurality of subscreens, and displaying the page list. According to the movement, the page contents corresponding to the page numbers are arranged in the order specified on the sub screen. If the user requests the enlargement of the contents of the page displayed on the specific subscreen while the page list is displayed, the display of the page contents is displayed on the optical screen by eliminating the display of the 4: 3 screen and the plurality of subscreens. It characterized in that it comprises a step of.

The method may further include displaying only a TV video signal on an optical screen when the user requests a search completion during the execution of the page search mode.

In order to achieve the above object, the character multi-page search apparatus of the optical screen television of the present invention comprises a teletext signal extractor for extracting a teletext signal included in a video signal, and a page outputted from the teletext signal extractor. A receiving unit that receives only pages requested according to output data of a control unit controlled by a computer, and writes and reads page data received and output in the first memory according to an output signal of the control unit, by a computer The memory interface unit writes and reads the generated page list into the second memory according to a command of the controller, and selects data corresponding to the page list and page contents output from the first and second memories, It is characterized by comprising a switching unit for supplying.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In addition, in all the drawings for demonstrating an embodiment, the thing with the same function uses the same code | symbol, and the repeated description is abbreviate | omitted.

FIG. 3 is a block diagram illustrating a teletext receiving apparatus according to the present invention, and FIG. 7 is a flowchart illustrating a text multi-page searching method according to the present invention.

In the teletext receiver shown in FIG. 3, the teletext signal extractor 30 is electrically connected to extract the teletext signal included in the video signal and supply the teletext signal to the receiver 40. It is configured to receive only a request page of the pages output from the teletext signal extraction unit 30 according to the output data of the control unit 20 whose operation is controlled by the computer 10.

The memory interface unit 50 writes and reads the page list data generated and output by the computer 10 to the second memory 60 which is the page memory according to the output signal of the controller 20 and reads the page list data into the character generator 90. It is configured to supply.

The first memory 70 writes and reads the contents of the page transmitted to the memory interface unit 50 according to the control data output from the control unit 20. The page list and the page contents output from (70) and (70) are selected to supply the corresponding data to the character generator (90).

Referring to the operation of the present invention having the configuration as described above in detail as follows.

When the user inputs the data to the computer 10 for page navigation to the optical screen television employing the teletext receiver shown in Fig. 3, the computer 10 firstly displays the first page (usually 100 pages). The controller 20 instructs the controller 20 to receive as many pages as can be stored in the page memory and store them in the first memory 60. The control unit 20 which has received a command instructs the receiving unit 40 to receive a page and controls the memory interface unit 50 to transfer data input to the receiving unit 40 to a memory location designated in the first memory 60. Save it.

When the memory storage is completed as described above, the control unit 20 applies a reception completion signal to the computer 10. Accordingly, the computer 10 reads the received page numbers to generate a page list, which is then used as a second memory ( Instructs the control unit 20 to store in 70).

When the execution of the command is completed, the computer 10 instructs the control unit 20 to display the display in the form as shown in FIGS. 4 to 6, wherein the cursor (→) is positioned at the first page number and the content of the page where the cursor is located. Command to display on the top subscreen of the 3 subscreens.

The control unit 20 which has received the command as described above switches the switch of the switching unit 80 to the terminal 2 and instructs the interface unit 50 to output the first page stored in the first memory 60. It tells you the location.

The command character generating unit 90 displays the page list input to the port P1 in the 4: 3 area of the screen and inputs the port P2 to the subscreen indicated by the control unit 20 among other subscreen areas. The enlarged page data by 2 times and display it.

In the apparatus of the present invention operating as described above, when the user's cursor movement request is input in the page search mode, the computer 10 changes the cursor position on the control unit 20 and displays the page where the cursor is located on the next screen of the sub-screen. Command

In response to the command, the controller 20 calculates a memory location where the page on which the cursor is located is stored, instructs the memory interface unit 50 to output the content at the location, and changes the cursor location to change the second memory 70. Write to and instruct the character generator 90 to display data input to the port P2 on the sub-screen.

On the other hand, when a request for enlargement of a page on the user's current subscreen is input in the page search mode, the computer 10 instructs the controller 20 to display the current subscreen page in the normal mode, so that the controller 20 switches. Switch the switch (80) to terminal 1 and instruct the character generator 90 to display in the normal mode.

The character generator 90 removes the sub screen and displays page data input to the port P1 on the full screen.

When the user's search end request is input in the page search mode, the computer 10 instructs the control unit 20 to stop displaying the teletext page, and the control unit 20 moves the switch of the switching unit 80 to the terminal 1. It switches over and instructs the character generator 90 not to display anything.

If the teletext is not displayed, a TV video signal is displayed on the screen.

As described above, according to the apparatus for multi-page text searching and the method of the optical screen television of the present invention, the teletext page list is displayed on a 4: 3 screen, and the page contents where the cursor is located are viewed through the sub-screen while the cursor is moved. This makes the page navigation very easy.

In addition, preferred embodiments of the present invention are disclosed for the purpose of illustration, those skilled in the art will be able to various modifications, changes, additions, etc. within the spirit and scope of the present invention, these modifications and changes should be seen as belonging to the following claims something to do.

Claims (3)

If the user selects the page search mode, storing the received page data in a designated location of the first storage means; and generating a page list using the page numbers of the received page data when the storage is completed in the first storage means. And storing the data in a designated location of the second storage means, and when the storage is completed in the second storage means, display the page list by positioning the cursor on the first page number on the 4: 3 screen of the optical screen, Enlarging and displaying the page contents of the page number at which the cursor is located on an arbitrary designated subscreen among a plurality of subscreens, and the page contents corresponding to the page numbers according to the movement of the cursor. According to the display, and the user is displayed a page list Requesting the enlargement of the contents of the page displayed on the specific sub-screen in the state, removing the display of the 4: 3 screen and the plurality of sub-screens and displaying the page contents on the optical screen. How to navigate text multipage. A text multi-page searching apparatus for an optical screen television, comprising: a teletext signal extracting unit for extracting a teletext signal included in a video signal, and a page output from the teletext signal extracting unit controlled by a computer of the system; A receiving unit which receives only pages requested according to the output data of the controller, and writes and reads page data received and output in the first memory according to the output signal of the controller, and controls the page list generated by the computer. A memory interface unit for writing to and reading from the second memory according to a command of a?, And a switching unit for selecting data corresponding to the page list and page contents output from the first and second memories and supplying the data to the character generator; Character multipage page of optical screen TV Color device. The method of claim 1, further comprising: displaying only a TV video signal on an optical screen when the user requests a search end of the page search mode during execution of the page navigation mode.