KR970007855A - 디지탈 브이씨알의 트래킹 제어장치 - Google Patents

디지탈 브이씨알의 트래킹 제어장치 Download PDF

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Publication number
KR970007855A
KR970007855A KR1019950019816A KR19950019816A KR970007855A KR 970007855 A KR970007855 A KR 970007855A KR 1019950019816 A KR1019950019816 A KR 1019950019816A KR 19950019816 A KR19950019816 A KR 19950019816A KR 970007855 A KR970007855 A KR 970007855A
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KR
South Korea
Prior art keywords
signal
tracking control
head switching
pilot
track
Prior art date
Application number
KR1019950019816A
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English (en)
Other versions
KR0144782B1 (ko
Inventor
김정태
Original Assignee
김광호
삼성전자 주식회사
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 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019950019816A priority Critical patent/KR0144782B1/ko
Publication of KR970007855A publication Critical patent/KR970007855A/ko
Application granted granted Critical
Publication of KR0144782B1 publication Critical patent/KR0144782B1/ko

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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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/584—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes
    • G11B5/588—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes by controlling the position of the rotating heads
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B15/12—Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams
    • G11B15/125—Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams conditioned by the operating function of the apparatus
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/46—Controlling, regulating, or indicating speed
    • G11B15/467—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven
    • G11B15/4673—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling the speed of the tape while the head is rotating
    • G11B15/4675—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling the speed of the tape while the head is rotating with provision for information tracking
    • G11B15/4676—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling the speed of the tape while the head is rotating with provision for information tracking using signals recorded in tracks disposed in parallel with the scanning direction
    • G11B15/4677—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling the speed of the tape while the head is rotating with provision for information tracking using signals recorded in tracks disposed in parallel with the scanning direction using auxiliary signals, i.e. pilot signals
    • G11B15/4678—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling the speed of the tape while the head is rotating with provision for information tracking using signals recorded in tracks disposed in parallel with the scanning direction using auxiliary signals, i.e. pilot signals superimposed on the main signal track

Landscapes

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

Abstract

본 발명은 디지탈 브이씨알(D-VCR)의 트래킹제어에 관한 것으로, 특히 가변속재생시 효과적인 트래킹제어가 가능한 디지탈 브이씨알의 트래킹 제어장치에 관한 것이다. 종래에는 가변속재생시 각 트랙마다 트래킹제어를 원활히 할 수가 없었다. 그러나, 본발명은 트릭플레이(trick play)와 같은 가변속재생시에는 일반적으로 트래킹제어를 수행하지 않았던 종래에 비해 헤드절환펄스발생부를 새롭게 구성하므로써 헤드스위칭신호를 기반으로 트래킹신호를 매트랙마다 발생하도록 하여픽업(pick up)되는 신호를 보다 많게 하여 화면상에서 나타나는 블록킹효과를 줄일 수 있고 가변속재생시 보다 양질의 화상을 얻을 수 있는 잇점을 제공한다.

Description

디지탈 브이씨알의 트래킹 제어장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제3도는 제2도의 헤드절환펄스발생부(40)를 나타낸 구성도.

Claims (3)

  1. 디지탈 브이씨알의 가변속재생 트래킹제어장치에 있어서, 서로 다른 소정 주파수의 파일럿신호들이 소정기준파일럿신호와 번갈아 기록되어 있는 테이프; 상기 테이프에 기록된 기준 파일럿신호의 양옆에 존재하는 서로 다른 제1파일럿신호와 제 2파일럿신호의 차신호를 검출하는 파일럿신호검출수단 ; 상기 파일럿신호검출수으로부터의 트래킹제어신호를 양/음의 부호중 하나를 부가하여 출력하는 스위칭부; 드럼모터로부터 헤드스위칭펄스를 인가받아 현재 헤드가 주사하는 트랙이 상기 기준파일럿신호가 기록된 트랙임을 다른 파일럿신호와 구분짓는 트랙구분신호를 출력하고, 상기 트랙구분신호가 인가될때마다 상기 스위칭부로부터 출력되는 트래킹제어신호중 하나를 선택하는 파일럿에러신호를 출력하는 헤드절환펄스발생수단; 및 상기 헤드절환펄스발생수단으로부터 상기 트랙구분신호를 인가받으면, 스위치로부터의 출력신호에 따라 캡스턴모터로 트래킹제어신호를 출력하는 제어부를 포함하는 디지탈 브이씨알의 트래킹 제어장치.
  2. 제1항에 있어서, 상기 헤드절환펄스발생수단은 외부로부터의 클럭신호에 의해 상기 파일럿신호가 기록된 테이프의 한트랙을 구성하는 클럭을 카운트하는 카운터; 외부로부터의 가변되는 배속정보에 해당하는 기설정된 소정값을 저장하고 , 상기 카운터부로부터의 출력신호와 기설정된 소정값을 비교하여 일치할 때 매칭펄스를 출력하는 비교기; 외부로부터의 통상/가변 선택제어신호를 인가받아 통상재생일 경우에는 상기 헤드스위칭신호를 그대로 출력하고, 가변 재생일 경우에는 파일럿 에러선택신호를 선택하여 출력하는 제1데이타선택기; 및 외부로부터의 통상/가변 선택제어신호를 인가받아 통상재생일 경우에는 상기 헤드스위칭신호를 그대로 출력하고, 가변 재생일 경우에는 현재 트랙을 구분짓는 트랙구분신호를 선택하여 출력하는 제2데이타선택기를 포함하는 것을 특징으로 하는 디지탈 브이씨알의 트래킹 제어장치.
  3. 제2항에 있어서, 상기 카운터는 상기 헤드스위칭펄스와 한 클럭딜레이된 헤드스위칭펄스를 배타논리곱한 결과값과 상기 비교기의 출력신호를 논리곱한 리셋신호를 인가받아 리셋되는 것을 특징으로 하는 디지탈 브이씨알의 트래킹 제어장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950019816A 1995-07-06 1995-07-06 디지탈 브이씨알의 트래킹 제어장치 KR0144782B1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950019816A KR0144782B1 (ko) 1995-07-06 1995-07-06 디지탈 브이씨알의 트래킹 제어장치

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950019816A KR0144782B1 (ko) 1995-07-06 1995-07-06 디지탈 브이씨알의 트래킹 제어장치

Publications (2)

Publication Number Publication Date
KR970007855A true KR970007855A (ko) 1997-02-21
KR0144782B1 KR0144782B1 (ko) 1998-07-15

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Application Number Title Priority Date Filing Date
KR1019950019816A KR0144782B1 (ko) 1995-07-06 1995-07-06 디지탈 브이씨알의 트래킹 제어장치

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190032838A (ko) * 2017-09-20 2019-03-28 대한민국(농촌진흥청장) 비닐하우스의 권취용 파이프

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190032838A (ko) * 2017-09-20 2019-03-28 대한민국(농촌진흥청장) 비닐하우스의 권취용 파이프

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Publication number Publication date
KR0144782B1 (ko) 1998-07-15

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