KR19980075181A - Television receiver with teletext font changer - Google Patents

Abstract

With the recent TV program, in the form of digital signals in the vertical retracement period of the video signal, text multicasting that encodes and transmits not only domestic and international news, but also information on economy, sports, tourism and culture and arts, and life, science, and stock news. As it is provided, the text fonts provided in the text multicasting are output in one text font, and thus the simplicity is felt.

Accordingly, the present invention has been made in view of the above-described circumstances, and a switching means for selectively switching a hue and luminance signal by text signal processing according to the key input, and outputting it on a screen according to the key input. A television receiver having: And text data processing means, a shape image storing means, an OSD generating means, a mixer, and a control means, and reading out the shape image data of the shape image storing means based on a character change signal selected from the key input means. The text data processing means is controlled to be sequentially output whenever the character change signal is changed, and the text of the currently shaped child image is displayed through the OSD generating means.

Therefore, it is possible to realize a television receiver equipped with a teletext character changing function that enables users to change and view teletext characters.

Description

Television receiver with teletext font changer

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television receiver having a teletext reception function, and more particularly, to a television receiver having a teletext character changing function which enables a viewer to change the viewing teletext character into a desired character font.

In order to satisfy the various information needs of viewers recently, domestic and foreign news as well as economic, sports, tourism leisure, information on cultural arts, life / science / broadcasting information, stock news, etc. are edited into letters or figures, and then encoded. By transmitting a digital program in the form of a digital signal in the vertical retrace period of the video signal along with the TV program, a text multicasting (hereinafter referred to as teletext) is provided that allows the viewer to freely use the desired information. It is a block diagram schematically showing a television receiver having a teletext signal reception function as described above.

In the figure, reference numeral 1 is an antenna for receiving an airwave broadcasting signal, 2 is a tuner for tuning a viewing channel among the broadcast signals received by this antenna 1, and 3 is output from this 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 the 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. A voice processor for performing voice processing such as bass, treble, volume, and the like according to the control signal from the microprocessor 16, which will be described later, with respect to the signal. Amplified voice signal is amplified and output 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, etc. are processed in accordance with the control signal 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, and 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. 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 carried in the vertical retrace section of the carrier signal according to the control signal output from the microprocessor 16, and processes the detected data signal to As a teletext decoder for outputting a text image signal, the teletext decoder 20 includes a text data detection unit 21 for detecting a teletext data signal from the image signal output from the image detector 9 and the text. And a text signal processor 22 for processing the teletext signal detected by the data detector 21 and outputting a video signal corresponding to the text content.

That is, the conventional teletext receiving function television receiver having the above-described configuration is a text signal processing provided in the teletext decoder 20 by the microprocessor 16 as the user selects the teletext mode through the remote controller 14. By controlling the stage 22 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 14 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, the teletext data to be transmitted on a specific section of the broadcast signal is normally output as one character of the text output on the screen, the viewer to watch the teletext if only one character is continuously output The simplicity of the game can cause a drop in viewership.

Therefore, if a viewer can select and view a desired font by using the text of the teletext displayed on the screen appropriately for the viewer's preference, the television receiver will be further improved.

Accordingly, the present invention has been made in view of the above circumstances, and has a teletext font changing function that can solve the simplicity of the teletext font by changing the font of the teletext being viewed to a desired font. The purpose is to provide a television receiver.

1 is a functional block diagram schematically showing the internal structure of a conventional television receiver having a teletext viewing function;

2 is a block diagram of a television receiver having a teletext character changing function according to an embodiment of the present invention;

Explanation of symbols on the main parts of the drawings

1 antenna 2 tuner (TUNER)

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

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: CRT14: Remote Controller

15 receiver 16 microprocessor

20, 30: Teletext decoder 21, 40: Text data detection unit

22, 50: text signal processing stage 41: sync separation section

42: Teletext (TXT) data extraction unit 51: Teletext (TXT) data processing unit

52: program memory 53: video data storage

54: Teletext (TXT) image processing unit 55: shaped image storage unit

551: first image (Gothic) image storage unit

552: second shape (spring object) image storage unit

553: third type (myeongjom) image storage unit

60: remote control device 70: OSD generation unit

80: mixer 90: microprocessor

A television receiver having a teletext character changing function according to the present invention for achieving the above object is provided with key input means equipped with all the function keys necessary for watching TELETEXT and key input of the user through the key input means. A television receiver having switching means for selectively switching the color tone (R, G, B) and luminance (Y) signals by text signal processing to output them on a screen; Text (TXT) data processing means for supplying data required for screen configuration from the teletext data signal detected from the broadcast signal by one line in the form of parallel data of a predetermined bit, and storing a magnetic image storing various magnetic image data. Means, an OSD generating means for outputting an OSD pattern signal of a guide message for displaying a presently shaped magnetic image according to a predetermined control signal, a text image signal processed by the text data processing means and an OSD pattern output from the OSD generating means A mixer for mixing and outputting a signal, and reading the shape image data of the shape image storage means based on the character change signal received from the key input means, so that the text data processing means is sequentially output every time the character change signal is received. In addition to the control and the shape of the current output through the OSD generating means Characterized in that configured to include a control means for controlling so that the output signal of the OSD pattern alert message to be displayed the image of munjache.

Therefore, according to the present invention having the above-described configuration, by changing the character of the teletext you are watching in a variety of ways to view the desired character among them, it is possible to escape from the simplicity of the character, and also boring in watching the teletext Boredom can be eliminated.

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

FIG. 2 is a block diagram showing the internal structure of a television receiver having a teletext character changing function according to an embodiment of the present invention. The same components as in FIG. 1 are assigned the same reference numerals, and detailed description thereof is omitted. do.

2, reference numeral 30 detects a teletext (TXT) data signal carried in a vertical retrace section of a broadcast signal according to a control signal output from a microprocessor 90, which will be described later, and detects the detected data signal. A teletext (TXT) decoder that processes and outputs a teletext video signal. The teletext decoder 30 includes a text (TXT) data detector 40 and a text (TXT) data detector for detecting a teletext (TXT) data signal from the video signal output from the image detector 9. And a text signal processing unit 50 for processing the teletext (TXT) signal detected at 40 and outputting a video signal corresponding to the text data.

The text (TXT) data detector 40 extracts a synchronization text signal 41 and a teletext data signal that separates the synchronization signal from the composite video signal output from the image detector 9. Teletext (TXT) data extraction unit 42, the text signal processing unit 50 is a text (1) for supplying the data necessary for the screen configuration from the extracted teletext data in the form of parallel data of a predetermined bit by one line ( TXT) The data processing unit 51 and the program memory 52 in which the operation programs of the decoder are stored, the image data storage unit 53 for storing image information of one page to be displayed on the screen, and the image data storage unit 53 Teletext (TXT) for outputting R, G, B signals in analog form corresponding to the teletext (TXT) data signal extracted under the control of the microprocessor 90 to be described later based on the data stored in It is composed of a processing unit 54, and the shape-image storage section 55 is image data, various types of shaped storage.

In addition, the female image storage unit 55 may include, for example, a first female image storage unit 551 in which gothic female image data is stored, and a second female image storage unit in which female image data of a spring object is stored ( 552), and a third shaped image storage section 553, which stores the shaped image data of the light fixture.

In the drawing, reference numeral 60 denotes a remote control device as a key input means equipped with a function key for executing a teletext character change, and 70 denotes an OSD pattern of a guide message for displaying a currently outputted magnetic image according to a predetermined control signal. The OSD generator 80 for outputting a signal is a mixer for mixing and outputting the text image signal processed by the text data processor 51 and the OSD pattern signal output from the OSD generator 70.

Further, reference numeral 90 reads out the shape image data of the shape image storage unit 55 based on the character change signal received from the remote control device 60, so that the text data is sequentially output whenever the character change signal is received. A microprocessor for controlling the processor 51 and outputting an OSD pattern signal of a guide message for displaying a character of the presently shaped child image through the OSD generator 70.

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

First, when a user selects a teletext receiving function by operating the remote controller 60, the microprocessor 90 outputs a predetermined control signal to the TXT data processing unit 51 configured in the teletext decoder 30. As described above, the TXT data processor 51 outputs the sampling control signal WIND for text data extraction to the TXT data extractor 42.

Meanwhile, the TXT data extractor 42 extracts a text signal contained in the composite video signal according to the sampling control signal WIND applied from the TXT data processor 51. 51) and outputs a text clock signal TCL and a text data signal TDT.

The TXT data processing unit 51 is based on the Gothic writing data stored in the image data storage unit 53 and the first image storage unit 551 according to the text clock (TCL) signal and the text data (TDT) signal. As a result, the data required for screen composition is supplied by one line in parallel data format.

Through the above process, the menu for the various text information provided in the teletext is displayed in the Gothic font on the CRT (13), and the viewer viewing the button key for the desired text information item through the remote control device (60). When inputting the microprocessor 90, the microprocessor 90 drives the TXT data processor 51 to output a page corresponding to the input key.

Accordingly, the TXT data processor 51 outputs the sampling control signal WIND to the TXT data extractor 42 and supplies the same to the TXT image processor 54 for the corresponding page.

The TXT image processor 54 outputs the analog color tone signals R, G, and B and the luminance signal Y corresponding to the image information data output from the TXT data processor 51. The signal is output to the CRT 13 through the CRT driver 12 through the switching unit 11.

Accordingly, by the above process, the viewer can watch the Gothic text broadcasting, and the function key (not shown) for changing the teletext text font of the remote control device 60 while the text broadcasting is being broadcast. When the input signal is received through the receiving unit 15, the microprocessor 90 drives the TXT data processing unit 51 to control the spring water stored in the second image storage unit 552. On the basis of the data and the image data stored in the image data storage unit 53, the data necessary for the screen configuration is supplied one by one in the form of parallel data. Subsequently, the TXT image processing unit 54 outputs the color tone signals R, G, B and the luminance signal Y in analog form corresponding to the image information data output from the TXT data processing unit 51. The signal is output to the CRT 13 through the CRT driving unit 12 through the switching unit 11. Accordingly, the viewer can watch the teletext image information in the spring water font.

On the other hand, the microprocessor 90 drives the OSD generator 70 to output the OSD pattern signal of the character type currently being output, and the CRT (13) screen through the mixer 80 and the CRT driver 12 For example, the spring font is output on the screen.

Therefore, even if you are watching a program other than teletext, the OSD screen shows that the text of the teletext is now converted to a fountain.

In addition, when the text change signal is input again through the receiver 15 while watching the teletext broadcast in the spring water font, the microprocessor 90 performs the TXT data processor 51 in the same manner as described above. Control the TXT image processing unit 54 on the basis of the data of the light character text stored in the third type image storage unit 553 and the image data of the image data storage unit 53 to control teletext of the light object. The image information of the character broadcast is output through the CRT 14 screen, and the OSD generating unit 70 outputs the guide message OSD pattern signal in the Ming type, so that the teletext information content in the Ming type character can be viewed. do.

Therefore, the viewer can watch the teletext teletext currently being watched without being bored or boring.

That is, according to the above embodiment, the viewer who is watching the teletext character broadcast can change the character of the teletext currently being viewed.

In addition, this invention is not limited to the said Example, It can variously deform and implement within the range which does not deviate from the technical summary of this invention.

As described above, according to the present invention, it is possible to realize a television receiver with a teletext character changing function, which can solve simplicity and boredom by changing and viewing the character of teletext currently viewed by the viewer.

Claims (1)

Key input means equipped with all function keys necessary for watching TELETEXT, and color tone (R, G, B) and luminance (Y) signals by text signal processing according to the user's key input through the key input means. A television receiver having switching means for selectively switching and outputting on a screen; Text (TXT) data processing means for supplying data necessary for the screen configuration from the teletext data signal detected from the broadcast signal by one line in the form of parallel data of a predetermined bit; Shape image storage means for storing various shape image data, OSD generating means for outputting the OSD pattern signal of the guide message for displaying the current image to be output in accordance with a predetermined control signal, A mixer for mixing and outputting the text image signal processed by the text data processing means and the OSD pattern signal output from the OSD generating means; The text generation processing unit controls the text data processing means to read out the shape image data of the shape image storage means based on the character change signal received from the key input means, and to output the character image signal in sequence every time the character change signal is received. And a control means for controlling the OSD pattern signal of the guide message to display the text of the currently displayed magnetic image through the teletext character changing function.