KR19990020823A - Television receiver with page selection for teletext splash screen - Google Patents

Abstract

The present invention provides a television receiver having a page selection designation function for a teletext initial screen which enables a user to arbitrarily designate a page of a text broadcasting initial screen so that contents of main interests can be easily checked and viewed without having to switch pages several times. A teletext broadcast receiving function television receiver comprising: a television receiver; A key input unit equipped with a function key for changing and setting the initial page of the text screen, and a teletext output signal for outputting a caption video signal for character broadcasting by extracting the teletext data ubiquitous in the broadcast signal according to a predetermined control command and decoding the extracted data. When the text decoder and the code data contracted through the key input unit are applied and the text screen of the predetermined information area is inputted as the initial page, the initial page change command together with the index information of the information area selected as the initial page is teletexted. And a controller for controlling the initial page to be changed and set by outputting to the decoder.

Description

Television receiver with page selection for teletext splash screen

The present invention relates to a television receiver equipped with a TELETEXT reception function, and in particular, by allowing the user to arbitrarily designate a page of the text broadcasting initial screen, the contents of the main interests can be easily viewed without changing the page several times. The present invention relates to a television receiver having a page selection function for a teletext initial screen.

In order to meet the various information needs of viewers recently, domestic and international news as well as information on economics, sports, tourism and leisure, cultural arts, life / science / broadcasting information, stock news, etc. have been edited into letters and figures, and then encoded. With the TV program, text multicasting (hereinafter referred to as "teletext") is provided to transmit a digital signal in the form of a digital signal during a vertical retrace period of the video signal so that viewers can freely use desired information. It is a block diagram schematically showing a conventional television receiver equipped with a teletext signal reception function as described above.

In Fig. 1, reference numeral 1 denotes an antenna for receiving an airwave broadcasting signal, 2 denotes a tuner for tuning a viewing channel among the broadcast signals received by the antenna 1, and 3 denotes an output from the tuner 2. An IF amplifier for amplifying and outputting an intermediate frequency (IF) signal, and 4 separates an image intermediate frequency (PIF) signal and an audio intermediate frequency (SIF) signal from the intermediate frequency signal amplified by the IF amplifier 3, respectively. P / S separation unit

Further, reference numeral 5 denotes a voice detector for detecting a voice signal from a voice intermediate frequency (SIF) signal separated and output from the P / S separator 4, and 6 denotes a voice output from the voice detector 5. Although not shown for the signal, a voice processor for performing voice processing such as bass, treble, volume, etc. according to a control signal from the microprocessor 16, which will be described later. It is an audio amplifier which amplifies the audio signal processed by the processor 6 and outputs it through the speaker 8 connected to the rear stage.

On the other hand, reference numeral 9 is an image detector for detecting an image signal from an image intermediate frequency (PIF) signal output from the P / S separation unit 4, and 10 is an image signal output from the image detector 9 Color, tint, brightness, and the like are processed according to control signals from the microprocessor 16 for R (Red), G (Green), and B (Blue). ) Is an image processor that outputs a signal.

Reference numeral 14 is a remote control device having a predetermined function key for receiving teletext data, 15 is a receiving unit for receiving an infrared signal transmitted from the remote control device 14 and converting it into an electrical code signal, and 16 It is a microprocessor as a control unit which controls the entire apparatus based on the code signal output from the receiving unit 15.

On the other hand, reference numeral 20 detects a teletext (TXT) data signal contained in a vertical retrace section of a broadcast signal according to a control signal output from the microprocessor 16, and processes the detected data signal to A teletext (TXT) decoder for outputting a text image signal, the teletext decoder 20 having a text (TXT) for detecting a teletext (TXT) data signal from the image signal output from the image detector (9). And a text signal processing stage 40 for processing the teletext signal detected by the text detecting terminal 30 and outputting a video signal corresponding to the text content. have.

That is, the conventional teletext receiving television receiver having the above-described configuration is provided with the microprocessor 16 in the teletext (TXT) decoder 20 as the user selects the teletext (TXT) mode through the remote control apparatus. By controlling the text signal processing stage 40 to extract and process the text signal from the broadcast signal, the viewer is provided for each field by operating the button keys installed on the remote control device while checking the information content output on the screen You can select the desired information from the text information and print it out in units of pages.

On the other hand, when looking at the usage mode of the teletext (TXT) character information, the user has a particular information in the field that is frequently found according to their preferences. In the conventional teletext broadcasting receiving function TV receiver, the user selects the text mode. When it is selected, the mode is switched and at the same time, the index page, which is the index information of the text broadcast, is output. Therefore, the user does not have a function of selecting the page of the desired information screen immediately.

Therefore, the user has a inconvenience of having to perform several key operations to select the corresponding information area while using the text information of the same area each time.

The present invention has been made in view of the above circumstances, and allows the user to specify a page of the text broadcasting initial screen arbitrarily so that the teletext initial screen enables the user to easily check and view the contents of the main interest without having to switch pages several times. The goal is to provide a television receiver with a page selector.

1 is a block diagram showing the internal structure of a conventional television receiver equipped with a teletext broadcast reception function;

Fig. 2 is a block diagram showing the internal structure of a television receiver equipped with a page selection designation function for a teletext initial screen according to an embodiment of the present invention.

Explanation of symbols for main parts of the drawings

1 antenna 2 tuner (TUNER)

3: IF amplification unit 4: P / S separation unit

5: voice detector 6: voice processor

7: voice amplifier 8: speaker

9: Image detector 10: Image processor

11: switching unit 12: CRT driving unit

13: CRT 14,24: remote control device

15,25: receiver 16,26: microprocessor

20,120: teletext decoder 30: text data detection stage

40,140: text signal processing stage 31: text data extraction unit

32: synchronization separator

A television receiver having a page selection designation function for a teletext initial screen according to the present invention for realizing the above object comprises a teletext broadcasting reception function television receiver; A key input unit equipped with a function key for changing and setting the initial page of the text screen, and a teletext output signal for outputting a caption video signal for character broadcasting by extracting the teletext data ubiquitous in the broadcast signal according to a predetermined control command and decoding the extracted data. When the text decoder and the code data contracted through the key input unit are applied and the text screen of the predetermined information area is inputted as the initial page, the initial page change command together with the index information of the information area selected as the initial page is teletexted. And a controller for controlling the initial page to be changed and set by outputting to the decoder.

That is, according to the present invention having the above-described configuration, the information screen of the field of interest designated by the user is immediately output on the screen at the same time as the text mode is selected, and the key is operated through several key operations despite the information of the frequently used area. The inconvenience of finding information can be solved.

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

FIG. 2 is a block diagram showing an internal configuration of a television receiver having a page selection designation function for a teletext initial screen according to an embodiment of the present invention. Elements performing substantially the same functions as those shown in FIG. Are denoted by the same reference numerals and detailed description thereof will be omitted.

In FIG. 2, reference numeral 24 denotes a remote controller having a function key for changing and setting a text screen initial page, and 25 denotes an electrical signal corresponding to a received signal by receiving an infrared signal transmitted from the remote controller 24. The receiver 26 outputs a code signal to control the overall operation of the apparatus and outputs a predetermined control signal to the teletext decoder 20 which will be described later when the code data contracted from the receiver 25 is applied. A microprocessor that controls the specified page to be set as the initial page of the text screen.

Further, reference numeral 120 extracts the teletext information ubiquitous in the vertical blanking section of the broadcast signal according to the control signal from the microprocessor 26 and decodes the extracted information to output the caption video signal of the character broadcast. The teletext decoder 120 has a function of designating and outputting a user-specified page as an initial screen of the text mode, and the teletext decoder 120 transmits teletext (TXT) data from an image signal output from the image detector 9. A text data detection stage 30 for detecting a signal and a text signal processing stage 140 for decoding a teletext (TXT) signal detected by the text data detection stage 30 and outputting an image signal corresponding to the text data. It consists of.

On the other hand, the text data detection stage 30 is separated and detected by the synchronization separator 32 and the synchronization separator 32 for separating the synchronization signal from the composite video signal output from the image detector 9. The text data extracting unit 31 extracts a text data signal ubiquitous in the vertical retrace section of the broadcast signal according to the text extraction signal WIND applied from the text signal processing unit 140 based on the synchronization signal.

In addition, the text signal processing unit 140 outputs the text extraction signal WIND according to the control signal from the microprocessor 26 and 8-bit screen information of the page selected by the viewer from the extracted teletext data. a text data processing unit 141 for converting the data into parallel data of (bit) and dividing the data in predetermined bit units, and a video data storage unit 143 for storing one page of text image information to be output on the screen; A program data storage unit 142 for storing character data corresponding to an operation program / text data of the decoder, and under the control of the microprocessor 26 based on the data stored in the program data storage unit 142 A text image processor 144 for outputting an R, G, and B signal of an analog form corresponding to the extracted teletext data signal, and a user displaying a page of the initial screen. And an initial screen information storage unit 145 for storing, as data, index information of the information area designated by Easy.

Next, the operation of the device having the above configuration will be described.

First, for the initial screen designation setting function according to the present invention, the user selects the page of the information area to be designated as the initial screen in the teletext mode, and the process is as follows.

First, when the user selects a text mode switching button (not shown) provided in the remote controller 24, the microprocessor 26 controls the tuner 2 to tune the channel on which the teletext broadcast signal is loaded. do. When the channel is tuned, the teletext signal ubiquitous in predetermined data bits is loaded on the vertical retrace section of the composite video signal CVS output from the image detector 9. The text data processing unit 141 of the 120 outputs the index screen extraction command WIND of the text information to the text data extraction unit 31 according to a control command applied from the microprocessor 26, thereby outputting the text data extraction unit ( 31), text information of the index page is extracted.

On the other hand, the text data extracting unit 31 according to the control command from the text data processing unit 141 based on the horizontal and vertical synchronizing signal applied from the sync separating unit 32, the text data from the vertical retrace section of the broadcast signal. Is extracted and outputs the clock signal TCL and the data signal TDT corresponding to the extracted information to the text data processor 141.

The text data processing unit 141 stores the data applied from the text data extracting unit 31 in the image data storage unit 143 as much as one page and based on the information stored in the program data storage unit 142. By driving the text image processor 144 according to the clock signal TCL and the data signal TDT, the index screen of the teletext broadcast is output through the CRT screen.

On the other hand, the user indexes the information area to be designated as the initial screen by using the numeric keys or the page up / down keys provided on the remote controller 24, and after confirming the text page to be set as the index result initial screen, the corresponding page When the predetermined button key of the remote control device 24 is selected in the state of outputting on the screen, the microprocessor 26 sends a control message for changing the initial screen to the text data processing unit 141 of the teletext decoder 120. Will print.

The text data processing unit 141 receiving the initial screen change command receives the index information of the text page designated by the user as the initial screen on the basis of the control message received from the microprocessor 26. It will be registered in.

When the initial screen page reset operation by the user is completed by the above-described process, when the user subsequently operates the remote control device 24 to perform text mode switching, the text data processing unit inside the teletext decoder 120 ( According to a text mode switching command applied from the microprocessor 26, 141 may transmit the teletext data contained in a predetermined section of the broadcast signal based on user-specified search data stored in the initial screen information storage unit 145. The extracted screen is decoded and the initial screen is output on the CRT screen. As a result, the text page of the information area designated by the user is output as the initial screen on the CRT screen.

That is, according to the above embodiment, the user can designate the page of the text broadcasting initial screen arbitrarily so that the user can designate a page selection designation function for the initial teletext screen which enables the user to easily check and view the contents of the main interest without having to switch pages several times. We can realize equipped television receiver.

Meanwhile, the present invention is not limited to the above embodiments and can be variously modified within the scope not departing from the technical gist of the present invention.

As described above, according to the present invention, the information screen of the area of interest designated by the user is immediately output on the screen simultaneously with the selection of the text mode, so that the information can be obtained through several key operations even though the information is frequently used. It will be possible to solve the inconvenience to find.

Claims (2)

A teletext broadcast receiving function television receiver comprising: a key input unit having a function key for changing and setting a text screen initial page, and extracting teletext data localized in a broadcast signal according to a predetermined control command and decoding the extracted data. Teletext decoder for outputting caption video signal of character broadcasting, and index of the information area selected as the initial page when the code data contracted through the key input unit is applied and the text screen of the predetermined information area is inputted as the initial page. And a control unit for controlling the initial page to be changed and set by outputting an initial page change command to the teletext decoder along with the information. The method of claim 1; The teletext decoder 120 performs a text data detection stage 30 for detecting a teletext (TXT) data signal from the received video signal and a teletext (TXT) signal detected by the text data detection stage 30. And a text signal processing unit 140 for decoding and outputting an image signal corresponding to text data, wherein the text signal processing unit 140 stores page index information of a user-specified initial screen applied from the control unit 26. The initial screen information storage unit 145 is provided to store the initial text information, characterized in that the initial screen text information extraction operation is executed based on this when the text mode switching command is input through the key input unit 24. Television set with page selector for.