KR970022722A

KR970022722A - Video signal interface device of computer and display device

Info

Publication number: KR970022722A
Application number: KR1019950038511A
Authority: KR
Inventors: 이기순
Original assignee: 배순훈; 대우전자 주식회사
Priority date: 1995-10-31
Filing date: 1995-10-31
Publication date: 1997-05-30

Abstract

본 발명은 컴퓨터에서의 영상 신호를 디스플레이 장치로 볼 수 있도록 변환하도록 한 컴퓨터와 디스플레이 장치의 영상 신호 인터페이스 장치에 관한 것으로, 컴퓨터(100)로부터의 R, G, B 색 신호를 직류 레벨의 변동없이 일정하게 유지시켜서 출력하는 제1버퍼부(210)와 ; 상기 컴퓨터(100)로부터의 제1수평, 수직 동기 신호를 임시 저장하여 출력하는 제2버퍼부(220)와 ; 상기 제2버퍼부(220)로부터의 제1수평, 수직 동기 신호에 기초하여 제1클럭 신호와 상기 제1클럭 신호를 2분주한 제2클럭 신호와, 제1, 2읽기/쓰기 제어 신호, 제2수평, 수직동기 신호를 선택적으로 출력하는 동기 제어부(230)와 ; 상기 동기 제어부(230)로부터의 제1클럭 신호에 의거하여 제1버퍼부(210)로부터의 R, G, B 색 신호를 샘플링하고 소정 비트의 디지탈 색 신호로 변환하여 출력하는 A/D 변환부(240)와 ; 상기 동기 제어부(230)로부터의 제1클럭 신호에 동기되어 제1, 2읽기/쓰기 제어 신호에 의거하여 상기 A/D 변환부(240)로부터의 디지탈 색 신호를 하나의 피일드량만큼 교번하여 저장하고, 상기 동기 제어부(230)로부터의 제2클럭 신호에 동기되어 제1, 2읽기/쓰기 제어 신호에 의거하여 저장된 하나의 피일드양만큼의 디지탈 색 신호를 교번하여 출력하는 제1, 2피일드 메모리부(251, 252)와 ; 상기 제1, 2피일드 메모리부(251, 252)로부터의 디지탈 색 신호를 상기 제2클럭 신호에 의거하여 아날로그 R, G, B 색 신호로 변환하여 출력하는 D/A 변환부(260)를 포함하여, 컴퓨터의 게임 및 입체 영상을 대형 텔레비젼등의 다른 디스플레이 장치로 볼 수 있도록 한 것이다.The present invention relates to a video signal interface device of a computer and a display device for converting a video signal from a computer to be viewed by a display device. The R, G, and B color signals from the computer 100 are changed without changing a DC level. A first buffer portion 210 which is kept constant and outputs; A second buffer unit 220 for temporarily storing and outputting a first horizontal and vertical synchronization signal from the computer 100; A second clock signal obtained by dividing the first clock signal and the first clock signal into two parts based on a first horizontal and vertical synchronization signal from the second buffer unit 220, first and second read / write control signals, A synchronization controller 230 for selectively outputting a second horizontal and vertical synchronization signal; An A / D converter configured to sample R, G, and B color signals from the first buffer unit 210 based on the first clock signal from the synchronization controller 230, and convert the R, G, and B color signals into a predetermined bit of digital color signals 240 and; In synchronization with the first clock signal from the synchronization controller 230, the digital color signal from the A / D converter 240 is alternated by one feed amount based on the first and second read / write control signals. A first and second stored in synchronization with the second clock signal from the synchronization controller 230, and alternately outputting a digital color signal corresponding to one stored amount based on the first and second read / write control signals. Shielded memory sections 251 and 252; The D / A converter 260 converts the digital color signals from the first and second feed memory units 251 and 252 into analog R, G, and B color signals based on the second clock signal. In addition, the game and stereoscopic images of the computer can be viewed on another display device such as a large TV.

Description

Video signal interface device of computer and display device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명에 따른 인터페이스 장치에 대한 블럭도.1 is a block diagram of an interface device according to the present invention.

Claims

An interface device 200 capable of converting a video signal of a computer 100 to another display device video signal format, wherein the R, G, and B color signals from the computer 100 are kept constant without changing a DC level. A first buffer unit 210 for outputting; A second buffer unit 220 for temporarily storing and outputting a first horizontal and vertical synchronization signal from the computer 100; A second clock signal obtained by dividing the first clock signal and the first clock signal into two parts based on a first horizontal and vertical synchronization signal from the second buffer unit 220, first and second read / write control signals, A synchronization controller 230 for selectively outputting a second horizontal and vertical synchronization signal; An A / D converter configured to sample R, G, and B color signals from the first buffer unit 210 based on the first clock signal from the synchronization controller 230, and convert the R, G, and B color signals into a predetermined bit of digital color signals 240 and; In synchronization with the first clock signal from the synchronization controller 230, the digital color signal from the A / D converter 240 is alternated by one feed amount based on the first and second read / write control signals. A first and second stored in synchronization with the second clock signal from the synchronization controller 230, and alternately outputting a digital color signal corresponding to one stored amount based on the first and second read / write control signals. Shielded memory sections 251 and 252; The D / A converter 260 converts the digital color signals from the first and second feed memory units 251 and 252 into analog R, G, and B color signals based on the second clock signal. An image signal interface device of a computer and a display device comprising.

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