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KR860007628A - Record Mode Discrimination Switching Method - Google Patents

Record Mode Discrimination Switching Method Download PDF

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Publication number
KR860007628A
KR860007628A KR1019850001769A KR850001769A KR860007628A KR 860007628 A KR860007628 A KR 860007628A KR 1019850001769 A KR1019850001769 A KR 1019850001769A KR 850001769 A KR850001769 A KR 850001769A KR 860007628 A KR860007628 A KR 860007628A
Authority
KR
South Korea
Prior art keywords
recording
signal
switching method
mode discrimination
superimposed
Prior art date
Application number
KR1019850001769A
Other languages
Korean (ko)
Other versions
KR920001127B1 (en
Inventor
코오이찌 야마다
칸지 쿠보
요시아끼 도야마
Original Assignee
야마시다 도시히꼬
마쯔시다덴기산교 가부시기가이샤
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 야마시다 도시히꼬, 마쯔시다덴기산교 가부시기가이샤 filed Critical 야마시다 도시히꼬
Publication of KR860007628A publication Critical patent/KR860007628A/en
Application granted granted Critical
Publication of KR920001127B1 publication Critical patent/KR920001127B1/en

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor

Landscapes

  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)

Abstract

내용 없음No content

Description

기록모우드 판별 절환방법Record Mode Discrimination Switching Method

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

제 1 도는 4종류의 파이럿 신호를 사용한 트래킹 방식에 있어서 테이프 패턴을 모식적으로 표시한 도면1 is a diagram schematically showing a tape pattern in a tracking method using four types of pilot signals.

제 2 도는 4종류의 파이럿 신호를 사용한 트래킹 방식을 표시한 블록도2 is a block diagram showing a tracking method using four types of pilot signals.

제 3 도는 SP모우드로 기록한 테이프 패턴을 LP모우드로 재생했을 때의 회전헤드의 주사궤적을 표시한 도면3 is a diagram showing the scanning trajectory of the rotating head when the tape pattern recorded by the SP mode is reproduced by the LP mode.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

(16) : 동조회로 (17) : 검파정류회로 (18) : 펄스정형회로(16): Tuning circuit (17): Detection rectifier circuit (18): Pulse shaping circuit

(19) : f-v 변환회로 (20) : 시미트회로(19): f-v conversion circuit (20): Summit circuit

Claims (1)

기록시에는 4종류의 주파수가 다른 파이럿 신호를 1피일드 마다 순차적으로 반복해서 기록해야 할 텔레비젼 신호에 중첩시켜서, 회전자기 헤드에 의하여 자기테이프 상에 기록트랙으로서 순차적으로 기록하고 재생시에는 재생해야 할 기록트랙에 대해서 전후에 인접한 기록트랙으로 부터 재생되는 파이럿 신호의 크로스토오크 신호의 레벨 차이에 따르는 트래킹에러 신호를 사용해서 기록트랙과 재생자기 헤드의 재생주사 궤적과의 상대위치를 제어하는 자기기록 재생장치에 있어서, 재생시 상기 4종류의 다른 주파수를 가진 파이럿 신호의 어느 하나의 파이럿 신호를 꺼내고, 이 꺼낸 신호의 주기를 검출해서 기록시의 테이프 속도와 재생시의 테이프 속도의 차이를 판별해서 절환을 행하는 기록모우드 판별 절환방법.In recording, superimposed pilot signals of four different frequencies are superimposed on a television signal to be recorded sequentially one by one, and are sequentially recorded as recording tracks on magnetic tape by a rotating magnetic head, and reproduced during playback. Magnetic recording reproduction for controlling the relative position between the recording track and the reproduction scan trajectory of the reproducing magnetic head by using a tracking error signal corresponding to the level difference of the crosstalk signal of the pilot signal reproduced from the recording tracks adjacent to the recording track before and after the recording track. In the apparatus, one of the pilot signals of the four different frequency signals is taken out during playback, and the period of the taken out signal is detected to determine the difference between the tape speed at the time of recording and the tape speed at the time of playback. Recording mode discrimination switching method performed. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019850001769A 1983-12-20 1985-03-19 Recording mode switching method KR920001127B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP240126 1983-12-20
JP58240126A JPS60131661A (en) 1983-12-20 1983-12-20 Record mode discriminating method

Publications (2)

Publication Number Publication Date
KR860007628A true KR860007628A (en) 1986-10-15
KR920001127B1 KR920001127B1 (en) 1992-02-01

Family

ID=17054881

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019850001769A KR920001127B1 (en) 1983-12-20 1985-03-19 Recording mode switching method

Country Status (2)

Country Link
JP (1) JPS60131661A (en)
KR (1) KR920001127B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61160559A (en) * 1985-01-10 1986-07-21 Mazda Motor Corp Fuel injection device for diesel engine
JPS62128046A (en) * 1985-11-29 1987-06-10 Matsushita Electric Ind Co Ltd Method for discriminating tape speed for recording
JPS62141664A (en) * 1985-12-16 1987-06-25 Matsushita Electric Ind Co Ltd Method for discriminating recording mode
JPH0766590B2 (en) * 1986-03-31 1995-07-19 シャープ株式会社 Magnetic recording / reproducing device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6093655A (en) * 1983-10-24 1985-05-25 Canon Inc Reproducing device of information signal
JPS6098545A (en) * 1983-11-04 1985-06-01 Mitsubishi Electric Corp Magnetic recording and reproducing device

Also Published As

Publication number Publication date
JPS60131661A (en) 1985-07-13
KR920001127B1 (en) 1992-02-01

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