KR980005216A - 브이시알의 저속재생시 자동트래킹 방법 - Google Patents

브이시알의 저속재생시 자동트래킹 방법 Download PDF

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Publication number
KR980005216A
KR980005216A KR1019960023170A KR19960023170A KR980005216A KR 980005216 A KR980005216 A KR 980005216A KR 1019960023170 A KR1019960023170 A KR 1019960023170A KR 19960023170 A KR19960023170 A KR 19960023170A KR 980005216 A KR980005216 A KR 980005216A
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KR
South Korea
Prior art keywords
low speed
tracking
capstan motor
optimal
speed playback
Prior art date
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KR1019960023170A
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English (en)
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KR100212138B1 (ko
Inventor
박일주
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김광호
삼성전자 주식회사
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Application filed by 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019960023170A priority Critical patent/KR100212138B1/ko
Priority to CN97110777A priority patent/CN1090361C/zh
Priority to US08/877,551 priority patent/US6055356A/en
Publication of KR980005216A publication Critical patent/KR980005216A/ko
Application granted granted Critical
Publication of KR100212138B1 publication Critical patent/KR100212138B1/ko

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Classifications

    • 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
    • G11B15/1808—Driving of both record carrier and head
    • G11B15/1875—Driving of both record carrier and head adaptations for special effects or editing
    • 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
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/0037—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0908—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0908—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only
    • G11B7/0909—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only by astigmatic methods
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/13—Optical detectors therefor
    • G11B7/131—Arrangement of detectors in a multiple array
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/13—Optical detectors therefor
    • G11B7/133—Shape of individual detector elements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1353—Diffractive elements, e.g. holograms or gratings
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1372—Lenses
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1381—Non-lens elements for altering the properties of the beam, e.g. knife edges, slits, filters or stops
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0006—Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0009—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage
    • G11B2007/0013—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage for carriers having multiple discrete layers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0908—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only
    • G11B7/0916—Foucault or knife-edge methods

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

본 발명은 브이시알의 저속재생시 자동트래킹 방법에 관한 것으로서, 특히 브이시알의 저속재생시 트래킹 파인딩방법에 있어서, 외부의 키입력상태를 체크하여 저속재생모드 선택키가 입력되는 경우 저속재생모드를 설정하는 제1단계; 상기 제1단계의 저속재생모드 설정상태에서 트래킹 파인딩을 실행하고, 최적의 화면상태인지 판단하는 제2단계; 상기 제2단계의 판단결과, 최적의 화면상태가 아니면 캡스턴모터의 정지구간인지 판단하는 제3단계; 상기 제3단계의 판단결과, 캡스턴모터의 정지구간이면 헤드로부터 재생되는 신호를 1 프레임당 소정의 개수만큼 샘플링하는 제4단계; 상기 제4단계에서 샘플링된 신호의 진폭이 일정하여 최적의 상태인지 판단하는 제5단계; 및 상기 제5단계의 판단결과, 샘플링된 신호의 진폭이 일정할 때의 트래킹값에 응답하여 서보부로 캡스턴모터제어신호를 출력하고, 트래킹 파인딩을 종료하는 제6단계를 구비하는 것을 특징으로 한다. 따라서, 본 발명은 브이시알에 있어서 저속재생시 자동적으로 노이즈가 없는 최적의 화면 상태가 되도록 하는데 효과가 있다.

Description

브이시알의 저속재생시 자동트래킹 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 종래 기술에 의한 브이시알의 저속재생시 트래킹장치의 구성을 나타낸 블록도.

Claims (2)

  1. 브이시알의 저속재생시 트래킹 파인딩방법에 있어서, 외부의 키입력상태를 체크하여 저속재생모드 선택키가 입력되는 경우 저속재생모드를 설정하는 제1단계; 상기 제1단계의 저속재생모드 설정상태에서 트래킹 파인딩을 실행하고, 최적의 화면상태인지 판단하는 제2단계; 상기 제2단계의 판단결과, 최적의 화면상태가 아니면 캡스턴모터의 정지구간인지 판단하는 제3단계; 상기 제3단계의 판단결과, 캡스턴모터의 정지구간이면 헤드로부터 재생되는 신호를 1 프레임당 소정의 개수만큼 샘플링하는 제4단계; 상기 제4단계에서 샘플링된 신호의 진폭이 일정하여 최적의 상태인지 판단하는 제5단계; 및 상기 제5단계의 판단결과, 샘플링된 신호의 진폭이 일정할 때의 트래킹값에 응답하여 서보부로 캡스턴모터제어신호를 출력하고, 트래킹 파인딩을 종료하는 제6단계를 구비하는 것을 특징으로 하는 브이시알의 저속재생시 자동트래킹 방법.
  2. 제1항에 있어서, 상기 제5단계의 판단결과, 최적의 상태가 아니면 트랭킹값을 가변하고, 그값에 응답하여 서보부로 캡스턴모터제어신호를 출력하는 단계를 더 구비하는 것을 특징으로 하는 브이시알의 저속재생시 자동트래킹 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019960023170A 1996-06-24 1996-06-24 브이시알의 저속재생시 자동 트래킹 방법 KR100212138B1 (ko)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1019960023170A KR100212138B1 (ko) 1996-06-24 1996-06-24 브이시알의 저속재생시 자동 트래킹 방법
CN97110777A CN1090361C (zh) 1996-06-24 1997-06-04 图像记录再现装置的跟踪控制方法及跟踪控制装置
US08/877,551 US6055356A (en) 1996-06-24 1997-06-17 Tracking control method and apparatus for video recorder/player

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960023170A KR100212138B1 (ko) 1996-06-24 1996-06-24 브이시알의 저속재생시 자동 트래킹 방법

Publications (2)

Publication Number Publication Date
KR980005216A true KR980005216A (ko) 1998-03-30
KR100212138B1 KR100212138B1 (ko) 1999-08-02

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ID=19463021

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Application Number Title Priority Date Filing Date
KR1019960023170A KR100212138B1 (ko) 1996-06-24 1996-06-24 브이시알의 저속재생시 자동 트래킹 방법

Country Status (3)

Country Link
US (1) US6055356A (ko)
KR (1) KR100212138B1 (ko)
CN (1) CN1090361C (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100257829B1 (ko) * 1997-07-15 2000-06-01 윤종용 비디오 카세트 레코더의 저속재생시 트래킹위치 제어방법

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6126955A (ja) * 1984-07-17 1986-02-06 Hitachi Ltd 磁気記録再生装置のオ−トトラツキング装置
JP2766919B2 (ja) * 1991-06-07 1998-06-18 三菱電機株式会社 ディジタル信号記録再生装置、ディジタル信号記録装置、ディジタル信号再生装置
KR0162215B1 (ko) * 1995-01-17 1998-12-15 김광호 비정상 속력 재생시의 자동 트래킹 장치 및 그 방법

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Publication number Publication date
CN1180216A (zh) 1998-04-29
KR100212138B1 (ko) 1999-08-02
US6055356A (en) 2000-04-25
CN1090361C (zh) 2002-09-04

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