KR970050623A

KR970050623A - Constant speed control method of tape feed speed

Info

Publication number: KR970050623A
Application number: KR1019950048560A
Authority: KR
Inventors: 김형남
Original assignee: 김광호; 삼성전자 주식회사
Priority date: 1995-12-09
Filing date: 1995-12-09
Publication date: 1997-07-29

Abstract

본 발명은 자기 테이프에 영상 및 음성신호를 기록, 재생시키는 테이프 사용영상기기에서, 테이프의 빨리 또는 되감기 모우드시 테이프 이송속도를 정속으로 유지시킬 수 있도록 하는 테이프 이송속도의 정속제어방법에 관한 것으로 테이프 이송 속도가 빠르면 테이프 정지시 관성을 이기지 못하여 테이프가 찢어지는 문제와 함께 정지시점에서 제대로 정지되지 못하고 상당량의 테이프가 풀리는 문제점이 따르게 된다.The present invention relates to a constant speed control method of a tape feed rate for maintaining a tape feed rate at a constant speed during a tape fast-forward or rewind mode in a tape-enabled video device for recording and reproducing video and audio signals on a magnetic tape. If the feed speed is high, the tape may not be inertia when the tape stops, and the tape may be torn off.

이를 해결하기 위한 본 발명은 서플라이 릴 주파수를 검출하는 단계와, 서플라이 릴 주파수를 기준 데이타와 비교하는 단계와, 서플라이 릴 주파수가 기준 데이타 보다 적으면 캡스턴 모터의 속도를 증가시키는 단계와, 서플라이 릴 주파수가 기준 데이타보다 크면 캡스턴 모터의 속도를 감소시키는 단계와, 서플라이 릴 주파수와 기준 주파수가 같으면 캡스턴 모터 속도를 그대로 유지시키는 단계를 수행시킴으로써 이루어진다.The present invention for solving this problem comprises the steps of detecting the supply reel frequency, comparing the supply reel frequency with the reference data, increasing the speed of the capstan motor if the supply reel frequency is less than the reference data, supply reel frequency Is greater than the reference data, reducing the speed of the capstan motor; and maintaining the capstan motor speed as it is if the supply reel frequency and the reference frequency are the same.

Description

Constant speed control method of tape feed speed

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

제2도는 본 발명의 테이프 이송제어 회로도,2 is a tape feed control circuit diagram of the present invention;

제3도는 테이프 감김상태에 따른 이송속도 설명도,3 is an explanatory diagram of the transfer speed according to the tape wound state,

제4도는 프리세트 데이타에 따른 릴속도 관계도.4 is a reel speed relationship diagram according to preset data.

Claims

A tape transfer method of a tape-enabled imaging device, the method comprising: detecting a supply reel frequency, comparing the supply reel frequency with reference data, and increasing the speed of the capstan motor when the supply reel frequency is less than the reference data; And reducing the speed of the capstan motor if the supply reel frequency is larger than the reference data, and maintaining the capstan motor speed as it is if the supply reel frequency is the same as the reference frequency.

The method according to claim 1, wherein the reference data is set by measuring the supply reel frequency when the amount of tape wound on the supply reel and the take-up reel is the same.

3. The constant speed control method of a feed rate of a tape according to claim 1 or 2, wherein a take-up reel frequency is used instead of a supply reel frequency.

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