KR870700166A - 오디오 디스크 혹은 비디오 디스크의 재생장치를 위한 회로배열 - Google Patents

오디오 디스크 혹은 비디오 디스크의 재생장치를 위한 회로배열

Info

Publication number
KR870700166A
KR870700166A KR1019860700786A KR860700786A KR870700166A KR 870700166 A KR870700166 A KR 870700166A KR 1019860700786 A KR1019860700786 A KR 1019860700786A KR 860700786 A KR860700786 A KR 860700786A KR 870700166 A KR870700166 A KR 870700166A
Authority
KR
South Korea
Prior art keywords
circuit arrangement
coarse
error signal
impulse
radial error
Prior art date
Application number
KR1019860700786A
Other languages
English (en)
Other versions
KR940005103B1 (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 KR870700166A publication Critical patent/KR870700166A/ko
Application granted granted Critical
Publication of KR940005103B1 publication Critical patent/KR940005103B1/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
    • 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
    • G11B7/0901—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 track following only
    • 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

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Control Of Position Or Direction (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)

Abstract

내용 없음.

Description

오디오 디스크 혹은 비디오 디스크의 재생장치를 위한 회로배열
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 비정밀-및 정밀구동부를 가진 공지된 방사상 서보회로.

Claims (11)

  1. 비정밀 및 정밀구동부의 협력작용으로 이루어져 있으며 스캐닝 유니트의 방사상 서보-재조정에 기여하고, 그 경우 정밀 구동부를 위한 조절크기에서 비정밀 구동부를 위한 방사상 오류 시그널이 얻어지는, 비접촉 스캐닝을 가진 오디오-및 비디오 디스크의 재생장치를 위한 회로배열에 있어서, 방사상 오류시그널(UR)에서 유도된 임펄스에 의해 비정밀 구동부(3)의 조정이 이루어지는 것을 특징으로 하는 회로배열.
  2. 제1항에 있어서, 방사상 오류시그널(UR)이 평가회로로 전송되는 것을 특징으로 하는 회로배열.
  3. 제2항에 있어서, 평가회로가 조절 가능한 문턱값(11)을 가진 비교기(10)을 포함하고 있는 것을 특징으로 하는 회로배열.
  4. 제2항에 있어서, 평가회로가 서로 다른 문턱값(11,24)을 갖는 다수의 비교기(10,16)을 포함하고 있는 것을 특징으로 하는 회로배열.
  5. 제1항에 있어서, 방사상오류시그널(UR)이 AD--변환기(26)에 전송되는 것을 특징으로 하는 회로배열.
  6. 제5항에 있어서,A-D변환기(26)의 출력시그널의 최대값 비으(MSB)가 비정밀구동부의 조정방향을 결정하는 것을 특징으로 하는 회로배열.
  7. 전술한 항의 한항 또는 다수항에 있어서, 방사상 오류 시그널(UR)의 최대값이 미리 주어진 문턱값을 초과하면 비정밀구동부(3)가 임펄스에 의해 구동되는 것을 특징으로 하는 회로배열.
  8. 제3항에 있어서, 비정밀구동부(3)가 비교기(10)의 출력 시그널에 의해 직접 조정되는 것을 특징으로 하는 회로배열.
  9. 제3 또는 제4항에 있어서, 비정밀구동부(3)가 동일하거나 상이한 임펄스 지속시간을 갖는 임펄스에 의해 조정되는 것을 특징으로 하는 회로배열.
  10. 제9항에 있어서, 임펄스가 하나 혹은 다수의 모노-플립-플롭에 의해 산출되는 특징으로 하는 회로배열.
  11. 제5항 또는 6항에 있어서, AD-변환기(26)의 출력 시그널의 잉여비트가 모노-플립-플릅(27-33)에 의해 비정밀구동부(3)을 위한 접속임펄스의 임펄스폭을 결정하는 것을 특징으로 하는 회로배열.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019860700786A 1985-03-09 1986-03-08 오디오 또는 비디오 디스크 플레이어용 회로 KR940005103B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEP3508422.7 1985-03-09
DE19853508422 DE3508422A1 (de) 1985-03-09 1985-03-09 Schaltungsanordnung fuer ein abspielgeraet von audio- und/oder videoplatten
PCT/EP1986/000126 WO1986005308A1 (en) 1985-03-09 1986-03-08 Circuit arrangement for a playback device for audio or video discs

Publications (2)

Publication Number Publication Date
KR870700166A true KR870700166A (ko) 1987-03-14
KR940005103B1 KR940005103B1 (ko) 1994-06-10

Family

ID=6264697

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019860700786A KR940005103B1 (ko) 1985-03-09 1986-03-08 오디오 또는 비디오 디스크 플레이어용 회로

Country Status (9)

Country Link
US (1) US4803676A (ko)
EP (1) EP0215867B1 (ko)
JP (1) JPS62502000A (ko)
KR (1) KR940005103B1 (ko)
AT (1) ATE48333T1 (ko)
DE (2) DE3508422A1 (ko)
DK (1) DK531686D0 (ko)
HK (1) HK148194A (ko)
WO (1) WO1986005308A1 (ko)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4424216B4 (de) * 1994-07-09 2005-06-16 Robert Bosch Gmbh Schaltungsanordnung zur Spurnachführung für ein Abspielgerät
US5793556A (en) * 1994-10-19 1998-08-11 International Business Machines Corporation High speed PES demodulator

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4037252A (en) * 1973-11-10 1977-07-19 U.S. Philips Corporation Apparatus for reading a disc-shaped record carrier with plural scanning spots for stable radial tracking
JPS53147509A (en) * 1977-05-27 1978-12-22 Nippon Telegr & Teleph Corp <Ntt> Tacking apparatus
JPS5538686A (en) * 1978-09-13 1980-03-18 Pioneer Video Corp Tracking controller of optical information reader
NL7812111A (nl) * 1978-12-13 1980-06-17 Philips Nv Inrichting voor het optisch uitlezen van een schijf- vormige registratiedrager, in het bijzonder het snel opzoeken van een gewenst programmagedeelte.
US4234837A (en) * 1979-01-12 1980-11-18 Mca Discovision, Inc. Digital center tracking system
JPS5611673A (en) * 1979-07-03 1981-02-05 Pioneer Video Corp Address information retrieval method in information recording medium reproducing unit
JPS6215864Y2 (ko) * 1980-08-04 1987-04-22
JPS5744234A (en) * 1980-08-27 1982-03-12 Mitsubishi Electric Corp Optical servo device
JPS58169343A (ja) * 1982-03-31 1983-10-05 Nec Home Electronics Ltd デイジタル・オ−デイオデイスクプレ−ヤ
JPS59116972A (ja) * 1982-12-23 1984-07-06 Olympus Optical Co Ltd 光学式記録再生装置用トラッキング装置の異常状態処理装置
JPS59148185A (ja) * 1983-02-15 1984-08-24 Oki Electric Ind Co Ltd トラツキング方式
NL8303029A (nl) * 1983-08-31 1985-03-18 Philips Nv Inrichting voor het uitlezen van een schijfvormige optische registratiedrager.

Also Published As

Publication number Publication date
HK148194A (en) 1995-01-06
DE3667220D1 (de) 1990-01-04
ATE48333T1 (de) 1989-12-15
US4803676A (en) 1989-02-07
DK531686A (da) 1986-11-06
KR940005103B1 (ko) 1994-06-10
JPH0424783B2 (ko) 1992-04-28
EP0215867A1 (de) 1987-04-01
WO1986005308A1 (en) 1986-09-12
EP0215867B1 (de) 1989-11-29
DE3508422A1 (de) 1986-09-11
JPS62502000A (ja) 1987-08-06
DK531686D0 (da) 1986-11-06

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