CA2005341A1 - Appareil d'enregistrement et de lecture a disque optique - Google Patents

Appareil d'enregistrement et de lecture a disque optique

Info

Publication number
CA2005341A1
CA2005341A1 CA2005341A CA2005341A CA2005341A1 CA 2005341 A1 CA2005341 A1 CA 2005341A1 CA 2005341 A CA2005341 A CA 2005341A CA 2005341 A CA2005341 A CA 2005341A CA 2005341 A1 CA2005341 A1 CA 2005341A1
Authority
CA
Canada
Prior art keywords
recording
optical disc
optical
detecting
reproduction apparatus
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA2005341A
Other languages
English (en)
Other versions
CA2005341C (fr
Inventor
Yoshihiro Tsukamura
Naoya Eguchi
Kimihiro Saitou
Shigeaki Wachi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of CA2005341A1 publication Critical patent/CA2005341A1/fr
Application granted granted Critical
Publication of CA2005341C publication Critical patent/CA2005341C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G11B7/085—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

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
CA002005341A 1988-12-19 1989-12-13 Appareil d'enregistrement et de lecture a disque optique Expired - Lifetime CA2005341C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63318524A JP2785290B2 (ja) 1988-12-19 1988-12-19 光ディスクのシーク及びトラッキング装置
JPP318524/88 1988-12-19

Publications (2)

Publication Number Publication Date
CA2005341A1 true CA2005341A1 (fr) 1990-06-19
CA2005341C CA2005341C (fr) 2000-02-08

Family

ID=18100075

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002005341A Expired - Lifetime CA2005341C (fr) 1988-12-19 1989-12-13 Appareil d'enregistrement et de lecture a disque optique

Country Status (6)

Country Link
US (1) US5157642A (fr)
EP (1) EP0375266B1 (fr)
JP (1) JP2785290B2 (fr)
KR (1) KR0175653B1 (fr)
CA (1) CA2005341C (fr)
DE (1) DE68918679T2 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0460929A (ja) * 1990-06-25 1992-02-26 Canon Inc 光学ヘッド及び該光学ヘッドを備えた光学的情報記録再生装置
US5450386A (en) * 1991-04-05 1995-09-12 Canon Kabushiki Kaisha Optical disk device including a support member for movably supporting an objective lens in focusing and radial directions with respect to an optical disk
KR0167891B1 (ko) * 1992-04-06 1999-03-20 강진구 디스크 시스템의 조기 브레이크 구동방법
US5511052A (en) * 1992-05-11 1996-04-23 Eastman Kodak Company Digital compensator for controlling a servo to correct the value of a given parameter of a system
JPH0963070A (ja) * 1995-06-13 1997-03-07 Matsushita Electric Ind Co Ltd トラックアクセス方法および装置
US5673240A (en) * 1996-03-18 1997-09-30 Nec Corporation Seek control circuit for suppressing vibration of objective lens in optical head during seek operation
KR100346701B1 (ko) * 1999-05-25 2002-08-01 삼성전자 주식회사 레이저 다이오드의 출력 제어 방법 및 이에 적합한 장치
JP3507395B2 (ja) * 2000-03-03 2004-03-15 株式会社日立製作所 回転電機及びそれを用いた電動車両
EP1581936B1 (fr) * 2002-12-30 2010-07-21 Koninklijke Philips Electronics N.V. Dispositif de lecture de disques optiques
JP2005122810A (ja) * 2003-10-16 2005-05-12 Hitachi Ltd 光ディスク装置
CN116293113A (zh) * 2015-12-10 2023-06-23 美国圣戈班性能塑料公司 流体输送耦合件

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR880000999B1 (ko) * 1981-11-25 1988-06-10 미쓰다 가쓰시게 광학적 정보 기억장치
JPS5919250A (ja) * 1982-07-21 1984-01-31 Hitachi Ltd 情報の記録再生装置
US4627039A (en) * 1983-12-23 1986-12-02 Magnetic Peripherals Inc. Head positioning servo system for optical recording with coarse and fine control
JPS60143442A (ja) * 1983-12-28 1985-07-29 Olympus Optical Co Ltd トラツキング方式
JPS61104337A (ja) * 1984-10-24 1986-05-22 Hitachi Ltd 光学的情報記録再生装置
JPS61214230A (ja) * 1985-03-20 1986-09-24 Hitachi Ltd 光デイスク装置
KR940002001B1 (ko) * 1985-03-22 1994-03-12 가부시끼가이샤 히다찌세이사꾸쇼 액세스 방법과 그 정보 검색장치
DE3618137A1 (de) * 1985-05-31 1986-12-11 Hitachi, Ltd., Tokio/Tokyo Bildplatten-zugriffsverfahren und bildplattenspeicher
DE3618720A1 (de) * 1985-06-05 1986-12-11 Hitachi, Ltd., Tokio/Tokyo Verfahren und vorrichtung zur spurnachfuehrung bei bildplatten
DE3687495T2 (de) * 1985-07-30 1993-07-29 Philips Nv Generatorkreis fuer spursignal und aufzeichnungstraeger dafuer.
US4779253A (en) * 1985-07-30 1988-10-18 Laser Magnetic Storage International Company Sampled servo for an optical disk drive
US4819219A (en) * 1986-03-25 1989-04-04 Kabushiki Kaisha Toshiba Track jump control system for optical disk apparatus
JPS63825A (ja) * 1986-06-19 1988-01-05 Sharp Corp 光情報記録再生装置
US4864552A (en) * 1986-08-29 1989-09-05 Laser Magnetic Storage International Company Driving signal for coarse servo employing sampled offset signal
JPH0679378B2 (ja) * 1986-12-15 1994-10-05 ソニー株式会社 光学式記録再生装置のトラツキングサ−ボ回路

Also Published As

Publication number Publication date
EP0375266A3 (en) 1990-11-28
EP0375266B1 (fr) 1994-10-05
KR0175653B1 (ko) 1999-04-15
JPH02165427A (ja) 1990-06-26
EP0375266A2 (fr) 1990-06-27
DE68918679D1 (de) 1994-11-10
US5157642A (en) 1992-10-20
JP2785290B2 (ja) 1998-08-13
DE68918679T2 (de) 1995-02-09
CA2005341C (fr) 2000-02-08
KR900010692A (ko) 1990-07-09

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry