KR980007479A

KR980007479A - How to detect still images on TV

Info

Publication number: KR980007479A
Application number: KR1019960023427A
Authority: KR
Inventors: 강권학
Original assignee: 배순훈; 대우전자 주식회사
Priority date: 1996-06-25
Filing date: 1996-06-25
Publication date: 1998-03-30

Abstract

본 발명은 텔레비젼으로 입력되어진 영상신호가 정지화면에 대한 영상신호인가를 검출하기 위한 텔레비젼에서 정지화면 검출방법을 제공하는 것을 목적으로 하며, TV영상신호나 A/V영상신호를 택일적으로 스위칭하는 A/V스위칭부(10)와, 상기 A/V스위칭부(10)로부터 출력된 영상신호에 대한 재생처리를 수행하는 영상신호처리수단(12,14,18)을 갖추어 구성된 텔레비젼에 있어서, 상기 A/V스위칭부(10)로부터 출력된 영상신호를 아날로그/디지탈변환기(20)에서 디지탈성분의 영상데이터로 변환하는 제1단계와, 해당 영상데이터를 필드단위로 필드메모리(22)에 저장하는 제2단계, 상기 아날로그/디지탈변환기(20)로부터 출력된 영상데이터와 상기 필드메모리(22)에 기저장된 영상데이터를 비교기(24)에서 비교하는 제3단계 및 비교대상인 영상데이터가 동일하지 않은 경우 상기 비교기(24)가 정지화면검출신호를 출력하는 제4단계로 이루어진 것을 특징으로 한다.An object of the present invention is to provide a still image detection method in a television for detecting whether a video signal input to a television is a video signal for a still picture, and to selectively switch a TV video signal or an A / V video signal. A television comprising an A / V switching unit (10) and video signal processing means (12, 14, 18) for performing reproduction processing on a video signal output from the A / V switching unit (10). A first step of converting the video signal output from the A / V switching unit 10 into the video data of the digital component by the analog / digital converter 20, and storing the video data in the field memory 22 in units of fields. In the second step, the third step of comparing the image data output from the analog / digital converter 20 and the image data previously stored in the field memory 22 in the comparator 24 and the image data to be compared are not the same. In this case, the comparator 24 has a fourth step of outputting a still image detection signal.

Description

How to detect still images on TV

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

제3도는 본 발명이 적용된 텔레비젼에서 정지화면 검출장치의 블록구성을 나타낸 도면이다.3 is a block diagram of a still picture detection apparatus in a television to which the present invention is applied.

Claims

An A / V switch unit 10 for selectively switching a TV video signal or an A / V video signal, and a video signal processing means for performing reproduction processing on the video signal output from the A / V switching unit 10 ( 12, 14, 18, comprising: a first step of converting an image signal output from the A / V switching unit 10 into image data of a digital component by an analog / digital converter 20; A second step of storing the image data in the field memory 22 in field units; comparing the image data output from the analog / digital converter 20 with the image data previously stored in the field memory 22 in the comparator 24; And a fourth step of outputting a still picture detection signal by the comparator (24) when the third step and the image data to be compared are not the same.