KR20010018975A - Apparatus and method for processing teletext of tv - Google Patents

Abstract

PURPOSE: A device and a method for processing teletext of a TV are provided so that a user can easily search information in a short time period, by displaying teletext information corresponding to a wanted page according to the user's selection. CONSTITUTION: A user enters a teletext setup mode by using a menu, number or direction key, sets up at least one preferred teletext page number, and turns on a teletext function. A microcomputer judges whether the teletext function is turned on(S41). If so, the microcomputer transmits a control signal to a teletext control unit, so that the teletext corresponding to the preferred page can be decoded and stored in a memory(S42). Thereafter, the microcomputer confirms whether a teletext display command is inputted(S43). If so, the microcomputer transmits a control signal to the teletext control unit, so that the teletext page number and title list can be displayed(S44). The microcomputer confirms whether the user selects one of the page numbers(S45). When the user selects a specific page number, the microcomputer transmits a control signal to the teletext control unit, so that the teletext information corresponding to the selected page number can be output through a character generating unit. In addition, the microcomputer controls an image processing unit so that the teletext information can be displayed on a screen through a display unit(S46). Accordingly, the user can search wanted information with a small capacity memory.

Description

TV teletext processing apparatus and method {APPARATUS AND METHOD FOR PROCESSING TELETEXT OF TV}

TECHNICAL FIELD The present invention relates to televisions, and more particularly, to an apparatus and method for teletext processing of televisions.

Teletext is a form of information designed to implement information necessary for a user on a TV screen through a TV broadcasting network. A CVBS (Composite Video) that completes one screen and returns to the beginning of the screen to compose the next screen. & Burst Signal) is transmitted through the vertical sync interval.

As shown in FIG. 1, a TV teletext processing apparatus according to the related art displays a tuner 1 for tuning a broadcast signal to process an intermediate frequency, and an intermediate frequency signal output from the tuner 1 on a screen. An image processing unit 2 for processing an image in a CVBS form, a teletext processing unit 3 for processing an image in a form capable of displaying a teletext signal of the CVBS output from the image processing unit 2, according to a user's operation command The microcomputer 4 controls the image processor 2 and the teletext processor 3, and a display unit 5 for displaying the output of the image processor 2 on the screen.

At this time, the teletext processing unit 3 generates a character that converts the output of the teletext decoder 11 and the teletext decoder 11 into a character form when the teletext information exists in the CVBS output from the image processing unit 2. A unit 12, a memory 13 for storing the output of the character generator 12, and a teletext control unit 14 for controlling the teletext processing operation in association with the microcomputer 4 are configured.

The teletext processing operation of the prior art configured as described above is as follows.

First, when the user sets the teletext mode using a key input means such as a remote controller, the microcomputer 4 recognizes this and transmits a corresponding command to the teletext controller 14.

Subsequently, the teletext controller 14 decodes the teletext information included in the vertical blanking section of the CVBS output from the image processor 2 in the order of the pages in the teletext decoder 11 and in the character generator 12. The R / G / B signals are converted into characters and stored in the memory 13.

In this case, since the memory 13 cannot use the large capacity indefinitely due to the economical aspect, that is, the cost, the teletext information corresponding to the capacity cannot be stored in the form as shown in FIG. Whenever new decoded data is inputted, data as much as the input data is deleted in the order of first storage.

When the user inputs a teletext display command, the TV microcomputer 4 recognizes it and transmits the command to the teletext controller 14.

Therefore, the teletext control unit 14 reads the teletext information corresponding to one page of the teletext information stored in the memory 13, that is, the last displayed page or the first page, and the R through the character generator 12. / G / B output

In addition, the R / G / B type teletext information output from the character generator 12 is displayed on the screen through the display unit 5 via the image processor 2.

Subsequently, when the user wants to view the next or previous page, if the user selects the next or previous page through the key of the remote controller, the corresponding page is displayed by the above-described teletext processing operation.

On the other hand, when the user directly designates a page to be displayed, if the corresponding teletext information is not currently stored in the memory 13, the teletext controller 14 recognizes the corresponding operation command through the microcomputer 4 and teletexts The decoder 11 is controlled so that the corresponding page is decoded and then displayed by the aforementioned teletext processing operation.

TV teletext processing apparatus according to the prior art has the following problems.

First, if the user does not know the desired teletext page number, the entire page must be searched one by one, resulting in inconvenience.

Second, all teletext can't be stored due to the limited memory capacity due to cost problems. Therefore, if you want to see pages that are not currently stored, it takes time for signal processing such as separate searching and decoding.

Therefore, the present invention has been made to solve the above-mentioned conventional problems, so that the teletext information corresponding to the user's preferred page is displayed according to the user's selection so as to solve the inconvenience and time waste of searching. It is an object of the present invention to provide an apparatus and method for teletext processing of a TV.

1 is a block diagram showing the configuration of a TV teletext processing apparatus according to the prior art

FIG. 2 is a diagram for describing a teletext data storage form of FIG. 1. FIG.

Figure 3 is a block diagram showing the configuration of the TV teletext processing apparatus according to the present invention

4 is a flowchart illustrating a method of processing teletext of a TV according to the present invention.

5 is a view for explaining the teletext storage form of FIG.

6 shows an example of a preferred page and title display;

Explanation of symbols for main parts of the drawings

31: tuner 32: image processing unit

33: teletext processor 34: microcomputer

35: display unit 41: teletext decoder

42: character generator 43: memory

44: teletext control

According to the present invention, a teletext processing apparatus of a TV decodes teletext corresponding to a preferred page preset by a user among teletexts included in a CVBS according to a control signal, converts the text into a text form, and stores or outputs it in a memory. A processing unit, a microcomputer for outputting a control signal to the teletext processing unit so that the teletext according to the preferred page is decoded and stored according to the teletext setting command and the corresponding teletext is output according to the teletext display command, and the intermediate frequency processed broadcast. And an image processing unit for converting the signal into a CVBS form and outputting the image and displaying the output of the teletext processing unit on the screen, and a display unit for displaying the output of the image processing unit on the screen.

According to the present invention, there is provided a teletext processing method of a television, comprising: determining whether a teletext function is set in a television having a teletext processing unit; and a preset user of the teletext input if the teletext function is set. Decoding and storing the teletext data corresponding to the preferred page; and displaying the teletext data corresponding to the previously stored preferred page on the screen when the teletext display command is input.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of a TV teletext processing apparatus and method according to the present invention.

As shown in FIG. 3, the apparatus for TV teletext processing according to the present invention decodes the teletext corresponding to a favorite page preset by the user among the teletexts included in the CVBS according to a control signal, and forms a character. The teletext processing unit 33 converts the data into a memory and stores or outputs it in a memory so that the teletext according to the preferred page is decoded and stored according to a teletext setting command and the teletext is output according to a teletext display command. A microcomputer 34 for outputting a control signal to the processing unit 33, a tuner 31 for tuning the broadcast signal and processing the intermediate frequency, and converting the broadcast signal processed by the tuner 31 into a CVBS form and outputting the result. And an image processor 32 for performing image processing to display the output of the teletext processor 33 on a screen. The output of the processing unit 32 is configured to include a display unit 35 for display on screen.

At this time, the teletext processor 33 outputs the teletext decoder 41 and the teletext decoder 41 that decode the teletext corresponding to the double preferred page when the teletext information exists in the CVBS output from the image processor 32. A character generating unit 42 for converting the text into a character form, a memory 43 for storing the output of the character generating unit 42, and a teletext control unit for controlling a teletext processing operation in association with the microcomputer 34; 44).

The teletext processing method of the TV according to the present invention configured as described above will be described with reference to FIGS. 4 to 6.

Prior to the detailed description, the present invention allows the user to set a preferred page number by using a preferred number for each user among the page numbers of the teletext and changing the title even if the details of each page number do not change. It is.

Therefore, in order to use the preference page function, the user first enters a teletext related setting mode using a menu key, a numeric key, or a direction key, and sets at least one page number of the teletext that he or she primarily views, that is, a preference page. Turn the text function on.

On the other hand, the microcomputer 34 determines whether the current teletext function is 'on' (S41), and if the teletext function is 'on', the control signal is transmitted to the teletext controller 44 to be set by the user. Teletext corresponding to the page is decoded and stored in the memory 43 (S42).

In this case, the memory 43 stores the corresponding teletext in the form as shown in FIG. 5, that is, in the order of preference pages set by the user or in descending order of preference pages.

Subsequently, the microcomputer 34 determines whether a teletext display command is input (S43). When the teletext display command is input, the microcomputer 34 transmits a control signal to the teletext control unit 44, as shown in FIG. The title list is displayed (S44).

Then, it is determined whether the user selects one of the page numbers from the list (S45).

Subsequently, when a specific page number is selected by the user, the control signal is transmitted to the teletext controller 44 so that the teletext information corresponding to the page number selected by the user is transmitted from the memory 43 through the character generator 42. The control unit 32 controls the image processing unit 32 to display the corresponding teletext information and display the image on the screen through the display unit 35 (S46).

The apparatus and method for TV teletext processing according to the present invention can selectively display the user's preferred information among the teletext information, so that the user can search for the information he / she wants with only a small amount of memory and waste time by searching for unnecessary information. There is an effect that can maximize the user's convenience by minimizing.

Claims (5)

A teletext processor that decodes teletext corresponding to a preferred page preset by a user among teletexts included in the CVBS, converts the text into a text form, and stores or outputs the same in a memory; A microcomputer outputting a control signal to the teletext processor to decode and store the teletext according to the preferred page according to a teletext setting command and to output the corresponding teletext according to a teletext display command; An image processing unit for converting the intermediate frequency processed broadcast signal into a CVBS format and outputting the image; And a display unit for displaying the output of the image processor on a screen. In a TV having a teletext processing unit, Determining whether the teletext function is set; If the teletext function is set, decoding and storing teletext data corresponding to a preset user preference page among the input teletext; And displaying a teletext data corresponding to the stored preferred page on a screen when a teletext display command is input. The method of claim 2, And if the teletext function is not set, decoding and storing the input teletext data in page order. The method of claim 2, The displaying of the teletext data corresponding to the preferred page on the screen may include listing the preferred page number list; And displaying, on a screen, teletext data corresponding to a page number selected by the user from the page number list. The method of claim 4, wherein Listing the preferred page number list further comprises displaying a title corresponding to the preferred page number.