KR940010781A

KR940010781A - Caption Decoding Systems for Widescreen Television

Info

Publication number: KR940010781A
Application number: KR1019920019249A
Authority: KR
Inventors: 김병진
Original assignee: 윤종용; 삼성전자 주식회사
Priority date: 1992-10-20
Filing date: 1992-10-20
Publication date: 1994-05-26
Also published as: KR0170640B1

Abstract

이 발명은 16 : 9의 와이드 텔레비젼의 캡션디코딩 시스템에 관한 것이다.This invention relates to a caption decoding system of a 16: 9 wide television.

이 발명은 일반적인 와이드 텔레비젼의 신호 계통도에 캡션 디코딩부, 캡션메모리부, 어드레스 발생부를 구비시켜 4 : 3 화면신호를 16 : 9의 스크린에 디스플레이할 때 오버스캔되어 보이지 않는 캡션정보를 시청가능 영역으로 위치 이동시켜 스크린의 스캔영역에 위치 이동시킴으로써 16 : 9의 와이드 텔레비젼에서도 4 : 3의 신호로 보내지는 캡션정보를 손실없이 시청할 수 있도록 한 것이다.The present invention includes a caption decoding section, a caption memory section, and an address generating section in a signal diagram of a general wide television, so that caption information that is not overscanned when displaying 4: 3 screen signals on a 16: 9 screen can be viewed as a viewable area. By shifting the position to the scan area of the screen, caption information transmitted as a 4: 3 signal can be viewed without loss even in a 16: 9 wide television.

Description

Caption Decoding Systems for Widescreen Television

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 이 발명에 따른 와이드 텔레비젼의 캡션 디코딩 시스템을 나타낸 블럭도,1 is a block diagram showing a caption decoding system of a wide television according to the present invention;

제2도 (A)~(C)는 4 : 3영상을 16 : 9의 영상으로 디스플레이할 때의 캡션위치 변화도이다.2A to 2C are caption position change diagrams for displaying 4: 3 images as 16: 9 images.

Claims

A tuner 10 for processing a weak high frequency signal from the antenna 1 and outputting it as an image intermediate frequency signal, and a synchronous separation and color signal processor for demodulating the video signal and demodulating the video signal from the tuner 10 ( 20), an analog digital converter (ADC1) for converting an analog video signal from the synchronous separation and color signal processing unit 20 into a digital signal, and a microcomputer for controlling the system according to the pressing of a function key attached to a remote controller or a TV ( MICOM) and a signal converter 30 connected to the analog-to-digital converter ADC1 and MICOM to select and convert a screen state of 4: 3 or 16: 9 under the control of the MICOM. A wide television signal processing system comprising a digital analog converter (DAC1) for converting a signal from the signal conversion section (30) into an analog signal, wherein the tuner (10) and the synchronous separation and color signals are provided. A caption decoding unit 40 connected to the second unit 20 to decode a caption signal from an image signal from the tuner 10, and a signal of the caption decoding unit 40 connected to the caption decoding unit 40. A caption memory unit 50 for time-matching the video signal from the synchronous separation and color signal processing unit 20, and connected to the microcomputer MICOM and the synchronous separation and color signal processing unit 20, and outputs 4 from the MICOM. An address generator 60 generating a read / write address of the caption memory 50 from horizontal and vertical synchronization signals from the synchronization separation and color signal processing unit 20 according to a 3 or 16: 9 screen selection signal; A mixer 70 connected to the digital analog converter DACl and the caption memory unit 50 to synthesize a caption signal from the caption memory unit 50 and an image signal from the digital analog converter DAC1. Why TV caption decoding system.

※ Note: The disclosure is based on the initial application.