KR860007825A - Slow play method - Google Patents

Slow play method Download PDF

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Publication number
KR860007825A
KR860007825A KR1019850001817A KR850001817A KR860007825A KR 860007825 A KR860007825 A KR 860007825A KR 1019850001817 A KR1019850001817 A KR 1019850001817A KR 850001817 A KR850001817 A KR 850001817A KR 860007825 A KR860007825 A KR 860007825A
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KR
South Korea
Prior art keywords
signal
electro
head
tape
recording track
Prior art date
Application number
KR1019850001817A
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Korean (ko)
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KR890004244B1 (en
Inventor
요시아끼 도야마
칸지 구보
코오이찌 야마다
Original Assignee
야마시다 도시히꼬
마쯔시다 덴기 산교 가부시기 가이샤
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Application filed by 야마시다 도시히꼬, 마쯔시다 덴기 산교 가부시기 가이샤 filed Critical 야마시다 도시히꼬
Priority to KR1019850001817A priority Critical patent/KR890004244B1/en
Publication of KR860007825A publication Critical patent/KR860007825A/en
Application granted granted Critical
Publication of KR890004244B1 publication Critical patent/KR890004244B1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/78—Television signal recording using magnetic recording
    • H04N5/782—Television signal recording using magnetic recording on tape
    • H04N5/783—Adaptations for reproducing at a rate different from the recording rate

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)

Abstract

내용 없음No content

Description

슬로우 재생방법Slow play method

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

제1도는 4주파수방식 파일럿신호의 기록궤적을 표시한 패턴도,1 is a pattern diagram showing a recording trace of a 4-frequency pilot signal;

제2도는 4주파수방식 파일럿신호에서 트랙킹 오차신호를 작성하는 회로의 블록도,2 is a block diagram of a circuit for preparing a tracking error signal from a 4-frequency pilot signal;

제3도는 본 발명에 의어서의 일실시예인 자기기록 재생장치의 회로구성을 표시한 블록도.3 is a block diagram showing a circuit configuration of a magnetic recording and reproducing apparatus according to an embodiment of the present invention.

(A1),(B1) : 기록자화궤적, (f1)~(f4) : 4주파 파일럿신호, (20) : 자기헤드, (21) : 전기-기계 변환소자, (23) : 트랙킹오차 검출회로, (24) : 트랙킹오차 메모리회로, (25) : 레벨판별회로, (26) : 구동회로, (27) : FG카운터, (34) : 캡스턴전동기, (35) : 주파수발진기, (44) : 비교기, (45) : 미소수정회로, (46) : 1프레임지연회로, (48) : 2트랙 데이터 메모리.(A 1 ), (B 1 ): recording magnetization trajectory, (f 1 ) ~ (f 4 ): 4 frequency pilot signal, (20): magnetic head, (21): electro-mechanical conversion element, (23): Tracking error detection circuit, (24): tracking error memory circuit, (25): level discriminating circuit, (26): drive circuit, (27): FG counter, (34): capstan motor, (35): frequency oscillator, (44): comparator, (45): micro correction circuit, (46): 1 frame delay circuit, (48): 2 track data memory.

Claims (3)

회전헤드를 사용해서, 자기테이프상에 경사진 불연속 기록트랙군으로서, 정보신호와 그 정보신호에 중첩해서 파일럿신호를 기록하고, 재생시에는 재생할 기록트랙에 대해서 상술한 기록트랙상에 기록되어 있는 파일럿신호의 재생 크로스토오크신호의 레벨차에 의해서 트랙킹 오차신호를 얻는 방법의 자기기록 재생장치에 있어서, 상기 회전헤드의 기계적 위치를 전기-기계 변환소자에 의해 상기 기록트랙의 폭방향으로 변위시키는 수단을 가지고, 상기 전기-기계 변환소자에 의해, 헤드에 1화면에 상당하는 변위량을 준후, 테이프이송을 저속으로 개시하여, 상기 전기-기계 변환소자에 가하는 전기량의 평균치가 거의 0이 되면 상기 테이프 이송을 정지시키는 것을특징으로 하느느 슬로우 재생방법.As a discontinuous recording track group inclined on a magnetic tape using a rotating head, the pilot signal is recorded superimposed on the information signal and the information signal, and the pilot recorded on the above-described recording track for the recording track to be reproduced at the time of reproduction. A magnetic recording and reproducing apparatus of a method for obtaining a tracking error signal by a level difference of a signal reproduction crosstalk signal, comprising: means for displacing the mechanical position of the rotating head in the width direction of the recording track by an electro-mechanical conversion element; And, by the electro-mechanical converter, give the head a displacement equivalent to one screen, start the tape feed at a low speed, and when the average value of the amount of electricity applied to the electro-mechanical converter is almost zero, the tape feed is started. Slow playback method characterized by stopping. 제1항에 있어서, 테이프 이송정지 후, 다시 헤드에 1화면에 상당하는 변위량을 주어서 제1항의 동작을 반복하는 것을 특징으로 하는 슬로우 재생방법.The slow regeneration method according to claim 1, wherein after the tape transfer stop, the operation of claim 1 is repeated by giving the head an amount of displacement equivalent to one screen. 제1항 또는 제2항에 있어서, 자기테이프 구동용 캡스턴의 회전수에 비례한 펄스신호를 계수하고, 이계수치를 트랙킹 오차신호에 가산하여, 가산된 신호에 의해, 상기 전기-기계 변환소자를 구동함과 동시에 이 구동량이 미리 설정된 스레소올드치를 초과하였을 경우, 상기 헤전헤드와 테이프와의 비접촉기간에 상기 전기-기계 변환소자를 1화면 상당분 변위시키는 것을 특징으로 하는 슬로우 재생방법.The electro-mechanical conversion element according to claim 1 or 2, wherein a pulse signal proportional to the rotational speed of the magnetic tape driving capstan is counted, and this coefficient value is added to the tracking error signal, and the electro-mechanical conversion element is added by the added signal. And the drive is displaced by approximately one screen in the non-contact period between the head and the tape when the driving amount exceeds the preset threshold value. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019850001817A 1985-03-20 1985-03-20 Slow regeneration method KR890004244B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019850001817A KR890004244B1 (en) 1985-03-20 1985-03-20 Slow regeneration method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019850001817A KR890004244B1 (en) 1985-03-20 1985-03-20 Slow regeneration method

Publications (2)

Publication Number Publication Date
KR860007825A true KR860007825A (en) 1986-10-17
KR890004244B1 KR890004244B1 (en) 1989-10-27

Family

ID=19240189

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019850001817A KR890004244B1 (en) 1985-03-20 1985-03-20 Slow regeneration method

Country Status (1)

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KR (1) KR890004244B1 (en)

Also Published As

Publication number Publication date
KR890004244B1 (en) 1989-10-27

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