DE69729023D1 - Gerät für optische Platten - Google Patents

Gerät für optische Platten

Info

Publication number
DE69729023D1
DE69729023D1 DE69729023T DE69729023T DE69729023D1 DE 69729023 D1 DE69729023 D1 DE 69729023D1 DE 69729023 T DE69729023 T DE 69729023T DE 69729023 T DE69729023 T DE 69729023T DE 69729023 D1 DE69729023 D1 DE 69729023D1
Authority
DE
Germany
Prior art keywords
optical disk
disk device
optical
disk
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
DE69729023T
Other languages
English (en)
Other versions
DE69729023T2 (de
Inventor
Shigeki Inoue
Hiroshi Minoda
Hiroyuki Tanaka
Akio Fukushima
Kazuhiko Ono
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Application granted granted Critical
Publication of DE69729023D1 publication Critical patent/DE69729023D1/de
Publication of DE69729023T2 publication Critical patent/DE69729023T2/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
    • 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
    • G11B7/08—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
DE69729023T 1996-05-30 1997-05-22 Gerät für optische Platten Expired - Lifetime DE69729023T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP13670996 1996-05-30
JP13670996 1996-05-30
JP17662996 1996-07-05
JP17662996 1996-07-05

Publications (2)

Publication Number Publication Date
DE69729023D1 true DE69729023D1 (de) 2004-06-17
DE69729023T2 DE69729023T2 (de) 2005-05-04

Family

ID=26470214

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69729023T Expired - Lifetime DE69729023T2 (de) 1996-05-30 1997-05-22 Gerät für optische Platten

Country Status (6)

Country Link
US (1) US6262957B1 (de)
EP (1) EP0810598B1 (de)
KR (1) KR100271859B1 (de)
CN (2) CN1242384C (de)
DE (1) DE69729023T2 (de)
TW (1) TW385435B (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19609575A1 (de) * 1996-03-12 1997-09-18 Thomson Brandt Gmbh Gerät zum Beschreiben und/oder Lesen optischer Aufzeichnungsträger unterschiedlichen Aufbaus
JP3439300B2 (ja) * 1996-06-11 2003-08-25 パイオニア株式会社 情報記録媒体判別装置
JP3123500B2 (ja) * 1998-03-12 2001-01-09 日本電気株式会社 光ディスク装置
US6333907B1 (en) * 1998-03-17 2001-12-25 Kabushiki Kaisha Toshiba Disk processing apparatus for reproducing information from a plurality of optical disks having different recording densities
JP2001101771A (ja) * 1998-04-14 2001-04-13 Matsushita Electric Ind Co Ltd ディスク判別方法
GB9906762D0 (en) * 1999-03-25 1999-05-19 Philips Electronics Nv Optical disc player
JP3968984B2 (ja) * 2000-10-05 2007-08-29 三菱電機株式会社 光ディスク再生装置およびディスク種別判別方法
JP2002260246A (ja) * 2001-03-02 2002-09-13 Texas Instr Japan Ltd 光ディスク判別回路
JP4713022B2 (ja) * 2001-07-05 2011-06-29 パナソニック株式会社 光ディスクドライブ装置用の増幅回路
JP3565827B2 (ja) 2001-07-10 2004-09-15 株式会社ソニー・コンピュータエンタテインメント 記録層判別装置，記録層判別プログラム及び記録層判別方法
JP2003188467A (ja) * 2001-12-20 2003-07-04 Mitsubishi Electric Corp 光半導体モジュール
KR100532612B1 (ko) * 2004-06-18 2005-12-01 삼성전자주식회사 광디스크 판별 오류시 재생모드 변경방법 및 장치
CN101477818B (zh) 2005-01-24 2010-09-29 松下电器产业株式会社 光盘装置
JP4653000B2 (ja) * 2006-03-27 2011-03-16 富士通セミコンダクター株式会社 プリスケーラ及びバッファ
TWI328800B (en) * 2006-08-25 2010-08-11 Lite On It Corp Method of finding a disc placed reversely
CN101154413B (zh) * 2006-09-27 2010-05-19 凌阳科技股份有限公司 一种判断盘片型态的方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61180935A (ja) * 1985-02-06 1986-08-13 Matsushita Electric Ind Co Ltd 光学的信号記録再生装置
JPS6276061A (ja) * 1985-09-30 1987-04-08 Toshiba Corp デイスク再生装置
JPH03116442A (ja) 1989-09-28 1991-05-17 Matsushita Electric Ind Co Ltd 光ディスク装置および光ディスク
JP2680716B2 (ja) 1990-04-26 1997-11-19 シャープ株式会社 電子レンジ
JP2626205B2 (ja) * 1990-08-09 1997-07-02 松下電器産業株式会社 光学的情報記録／再生装置およびカートリッジ
US5235581A (en) * 1990-08-09 1993-08-10 Matsushita Electric Industrial Co., Ltd. Optical recording/reproducing apparatus for optical disks with various disk substrate thicknesses
US5255262A (en) * 1991-06-04 1993-10-19 International Business Machines Corporation Multiple data surface optical data storage system with transmissive data surfaces
KR0135874B1 (ko) * 1992-02-28 1998-05-15 강진구 디스크인식방법
EP0586084B1 (de) * 1992-08-04 1998-04-08 Sony Corporation Wiedergabegerät
US5615200A (en) * 1992-09-10 1997-03-25 Kabushiki Kaisha Toshiba Light beam shaping device to change an anisotropic beam to an isotropic beam for reducing the size of an optical head
US5729510A (en) * 1994-01-19 1998-03-17 Kabushiki Kaisha Toshiba Optical head used for recording on optical recording medium having various thicknesses, warpage and the like
JPH08339569A (ja) 1995-06-13 1996-12-24 Mitsubishi Electric Corp 光記録再生装置
KR0154200B1 (ko) 1995-03-04 1998-12-15 구자홍 Cd/dvd 계열 디스크 호환 기록/재생이 가능한 광픽업장치
JP2995003B2 (ja) * 1995-05-08 1999-12-27 三洋電機株式会社 光学式再生装置
KR100373673B1 (ko) * 1995-05-08 2003-05-09 산요 덴키 가부시키가이샤 광학기록·재생장치및광픽업
US5742575A (en) * 1995-08-18 1998-04-21 Sony Corporation Method and device for identifying disc
KR100234257B1 (ko) * 1995-08-30 1999-12-15 윤종용 대물렌즈 장치 및 안정된 포커스 서보 신호를 얻는방법 및 이를 적용한 광픽업 장치 및 두께가 다른 디스크를 판별하는 방법 및 두께가 다른 디스크로부터 정보를 재생하고 기록하는 방법

Also Published As

Publication number Publication date
EP0810598B1 (de) 2004-05-12
KR100271859B1 (ko) 2000-11-15
EP0810598A2 (de) 1997-12-03
KR970076577A (ko) 1997-12-12
US6262957B1 (en) 2001-07-17
CN1185000A (zh) 1998-06-17
CN1242384C (zh) 2006-02-15
CN1405756A (zh) 2003-03-26
EP0810598A3 (de) 1998-08-19
TW385435B (en) 2000-03-21
DE69729023T2 (de) 2005-05-04

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition