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DE68918679D1 - Optisches Plattenaufzeichnungs- und/oder -wiedergabegerät. - Google Patents

Optisches Plattenaufzeichnungs- und/oder -wiedergabegerät.

Info

Publication number
DE68918679D1
DE68918679D1 DE68918679T DE68918679T DE68918679D1 DE 68918679 D1 DE68918679 D1 DE 68918679D1 DE 68918679 T DE68918679 T DE 68918679T DE 68918679 T DE68918679 T DE 68918679T DE 68918679 D1 DE68918679 D1 DE 68918679D1
Authority
DE
Germany
Prior art keywords
optical disc
reproducing apparatus
disc recording
recording
reproducing
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.)
Expired - Lifetime
Application number
DE68918679T
Other languages
English (en)
Other versions
DE68918679T2 (de
Inventor
Yoshihiro Sony Corpo Tsukamura
Naoya Sony Corporation Eguchi
Kimihiro Sony Corporati Saitou
Shigeaki Sony Corporatio 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
Application granted granted Critical
Publication of DE68918679D1 publication Critical patent/DE68918679D1/de
Publication of DE68918679T2 publication Critical patent/DE68918679T2/de
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
DE68918679T 1988-12-19 1989-12-13 Optisches Plattenaufzeichnungs- und/oder -wiedergabegerät. Expired - Lifetime DE68918679T2 (de)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
DE68918679D1 true DE68918679D1 (de) 1994-11-10
DE68918679T2 DE68918679T2 (de) 1995-02-09

Family

ID=18100075

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68918679T Expired - Lifetime DE68918679T2 (de) 1988-12-19 1989-12-13 Optisches Plattenaufzeichnungs- und/oder -wiedergabegerät.

Country Status (6)

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

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
KR101077850B1 (ko) * 2002-12-30 2011-10-31 코닌클리케 필립스 일렉트로닉스 엔.브이. 광 디스크 재생장치
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
US4779253A (en) * 1985-07-30 1988-10-18 Laser Magnetic Storage International Company Sampled servo for an optical disk drive
EP0215556B1 (de) * 1985-07-30 1993-01-13 Koninklijke Philips Electronics N.V. Generatorkreis für Spursignal und Aufzeichnungsträger dafür
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
JPH02165427A (ja) 1990-06-26
US5157642A (en) 1992-10-20
EP0375266B1 (de) 1994-10-05
CA2005341C (en) 2000-02-08
DE68918679T2 (de) 1995-02-09
EP0375266A3 (en) 1990-11-28
JP2785290B2 (ja) 1998-08-13
KR0175653B1 (ko) 1999-04-15
CA2005341A1 (en) 1990-06-19
KR900010692A (ko) 1990-07-09
EP0375266A2 (de) 1990-06-27

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition