HK1043654B - 光盤裝置 - Google Patents

光盤裝置

Info

Publication number
HK1043654B
HK1043654B HK02105381.4A HK02105381A HK1043654B HK 1043654 B HK1043654 B HK 1043654B HK 02105381 A HK02105381 A HK 02105381A HK 1043654 B HK1043654 B HK 1043654B
Authority
HK
Hong Kong
Prior art keywords
optical disk
disk device
optical
disk
Prior art date
Application number
HK02105381.4A
Other languages
English (en)
Other versions
HK1043654A1 (en
Inventor
真下著明
高坂紀一
Original Assignee
提阿克股份有限公司
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 提阿克股份有限公司 filed Critical 提阿克股份有限公司
Publication of HK1043654A1 publication Critical patent/HK1043654A1/xx
Publication of HK1043654B publication Critical patent/HK1043654B/zh

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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
    • 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
    • G11B7/094—Methods and circuits for servo offset compensation
    • 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
    • G11B7/0941—Methods and circuits for servo gain or phase compensation during operation
    • 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
    • G11B7/0943—Methods and circuits for performing mathematical operations on individual detector segment outputs
    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0055—Erasing
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Optical Recording Or Reproduction (AREA)
HK02105381.4A 2000-08-29 2002-07-22 光盤裝置 HK1043654B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000259569A JP3622650B2 (ja) 2000-08-29 2000-08-29 光ディスク装置

Publications (2)

Publication Number Publication Date
HK1043654A1 HK1043654A1 (en) 2002-09-20
HK1043654B true HK1043654B (zh) 2005-01-07

Family

ID=18747732

Family Applications (1)

Application Number Title Priority Date Filing Date
HK02105381.4A HK1043654B (zh) 2000-08-29 2002-07-22 光盤裝置

Country Status (4)

Country Link
US (1) US7151723B2 (zh)
JP (1) JP3622650B2 (zh)
CN (1) CN1155952C (zh)
HK (1) HK1043654B (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005166151A (ja) * 2003-12-01 2005-06-23 Sanyo Electric Co Ltd コンパクトディスク再生装置用ｒｆ回路
JP4026639B2 (ja) * 2004-11-04 2007-12-26 船井電機株式会社 光ディスク装置
US7668053B2 (en) * 2005-06-03 2010-02-23 Zoran Corporation Processing an information carrying signal

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3365574B2 (ja) 1994-02-18 2003-01-14 日本ビクター株式会社 光ディスク装置のオフセット調整装置
JPH1173657A (ja) * 1997-06-27 1999-03-16 Pioneer Electron Corp フォーカス制御装置及び方法
JP3442984B2 (ja) 1997-12-26 2003-09-02 シャープ株式会社 光ピックアップの位置制御装置
JP3500090B2 (ja) 1999-03-29 2004-02-23 シャープ株式会社 光ディスク装置
JP2001143277A (ja) 1999-11-11 2001-05-25 Sony Corp 光ディスク装置

Also Published As

Publication number Publication date
HK1043654A1 (en) 2002-09-20
JP3622650B2 (ja) 2005-02-23
JP2002074692A (ja) 2002-03-15
CN1341926A (zh) 2002-03-27
US7151723B2 (en) 2006-12-19
US20020041546A1 (en) 2002-04-11
CN1155952C (zh) 2004-06-30

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20080827