KR870700165A - 오디오 디스크 또는 비디오디스크의 재생장치를 위한 회로 - Google Patents

오디오 디스크 또는 비디오디스크의 재생장치를 위한 회로

Info

Publication number
KR870700165A
KR870700165A KR1019860700785A KR860700785A KR870700165A KR 870700165 A KR870700165 A KR 870700165A KR 1019860700785 A KR1019860700785 A KR 1019860700785A KR 860700785 A KR860700785 A KR 860700785A KR 870700165 A KR870700165 A KR 870700165A
Authority
KR
South Korea
Prior art keywords
coarse
radial
drive
pct
fine drive
Prior art date
Application number
KR1019860700785A
Other languages
English (en)
Other versions
KR940003549B1 (ko
Inventor
바스 디이터
Original Assignee
롬프-디이터 베르거
도이체 톰손-브란트 게엠베하
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 롬프-디이터 베르거, 도이체 톰손-브란트 게엠베하 filed Critical 롬프-디이터 베르거
Publication of KR870700165A publication Critical patent/KR870700165A/ko
Application granted granted Critical
Publication of KR940003549B1 publication Critical patent/KR940003549B1/ko

Links

Classifications

    • 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
    • G11B7/095—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/10—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following
    • G11B21/106—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following on disks
    • 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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
    • 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
    • G11B7/095—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble
    • G11B7/0953—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for eccentricity of the disc or disc tracks

Landscapes

  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Rotational Drive Of Disk (AREA)
  • Control Of Position Or Direction (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

내용 없음.

Description

오디오 디스크 또는 비디오디스크의 재생장치를 위한 회로
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제3a도는 비교기에 의한 문턱값 조정.

Claims (5)

  1. 주사단위의 방사방향 서어보-사후조정을 위한 비정밀 및 정밀구동을 조합함으로써 오디오-및/또는 비디오 디스크를 비접촉 주사하며, 이때 정밀구동을 위한 조 정크기로 부터 비정밀 구동을 위한 방사방향 결합시그널이 얻어지는 재생장치를 위한 회로에 있어서, 방사방향 결함 시그널로 부터 유도되는 임펄스가 정해진 임펄스/정지기의 비를 초과할 때 비정밀구동이 임펄스에 의해서 조정되는 비접촉 주사 재생장치를 위한 회로.
  2. 제1항에 있어서, 방사방향 결함시그널(UR)의 평균값을 결정하기 위해서 전-후방-카운티(20)이 사용되는 것을 특징으로 하는 회로.
  3. 제2항에 있어서, 방사방향 결함시그널(UR)의 평균값 이상일 때 전-후방-카운티(20)이 사용되는 것을 특징으로 하는 회로.
  4. 제2항에 있어서, 방사방향 결함시그널(UR)이 평균 값에 크게 미달될 때 재생방향에 반대되는 비정밀구동(3)이 구동되는 것을 특징으로 하는 회로.
  5. 제 1항에 있어서, 먼저 비정밀구동이 임펄스/정지의 비가 1보다 클 때 조정되는 것을 특징으로 하는 회로.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019860700785A 1985-03-09 1986-02-15 비접촉주사 오디오 및 비디오 디스크 플레이어용 트랙 제어회로 KR940003549B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19853508421 DE3508421A1 (de) 1985-03-09 1985-03-09 Schaltungsanordnung fuer ein abspielgeraet von audio- und / oder videoplatten
DEP3508421,9 1985-03-09
DE3508421 1985-03-09
PCT/EP1986/000076 WO1986005307A1 (en) 1985-03-09 1986-02-15 Circuit for an audio and/or video disk playback device

Publications (2)

Publication Number Publication Date
KR870700165A true KR870700165A (ko) 1987-03-14
KR940003549B1 KR940003549B1 (ko) 1994-04-23

Family

ID=6264696

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019860700785A KR940003549B1 (ko) 1985-03-09 1986-02-15 비접촉주사 오디오 및 비디오 디스크 플레이어용 트랙 제어회로

Country Status (9)

Country Link
US (1) US4794579A (ko)
EP (1) EP0214200B1 (ko)
JP (1) JP2703222B2 (ko)
KR (1) KR940003549B1 (ko)
AT (1) ATE48718T1 (ko)
DE (2) DE3508421A1 (ko)
DK (1) DK167259B1 (ko)
HK (1) HK148394A (ko)
WO (1) WO1986005307A1 (ko)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2578973B2 (ja) * 1989-05-01 1997-02-05 パイオニア株式会社 オン／オフトラック検出機能を有するコンパチブルディスクプレーヤ
NL9000131A (nl) * 1990-01-19 1991-08-16 Philips Nv Lees- en/of schrijfinrichting.
DE69421785T2 (de) * 1993-09-28 2000-05-11 Sony Corp Gerät zum Messen der Exzentrizität einer Scheibe, Verfahren dazu und Aufzeichnungs- und/oder Wiedergabegerät für scheibenförmiges Aufzeichnungsmedium
DE4424216B4 (de) * 1994-07-09 2005-06-16 Robert Bosch Gmbh Schaltungsanordnung zur Spurnachführung für ein Abspielgerät
DE19813246C2 (de) * 1998-03-25 2002-12-12 Sks Stakusit Bautechnik Gmbh Rollladenführungsleiste

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4703467A (en) * 1972-10-24 1987-10-27 Discovision Associates Video disc read back scanner
GB1577133A (en) * 1976-03-19 1980-10-22 Rca Corp Video information record and playback apparatus
US4234837A (en) * 1979-01-12 1980-11-18 Mca Discovision, Inc. Digital center tracking system
DE3339736C1 (de) * 1983-11-03 1985-06-05 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen Spurfolgesystem zur Korrektur von Tangentenfehlwinkeln bei optischer Plattenabtastung

Also Published As

Publication number Publication date
EP0214200A1 (de) 1987-03-18
JPS62502152A (ja) 1987-08-20
US4794579A (en) 1988-12-27
HK148394A (en) 1995-01-06
DK531586A (da) 1986-11-06
JP2703222B2 (ja) 1998-01-26
KR940003549B1 (ko) 1994-04-23
DE3667565D1 (de) 1990-01-18
DK167259B1 (da) 1993-09-27
WO1986005307A1 (en) 1986-09-12
ATE48718T1 (de) 1989-12-15
EP0214200B1 (de) 1989-12-13
DE3508421A1 (de) 1986-09-11
DK531586D0 (da) 1986-11-06

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