TW200617917A - Optical disk apparatus - Google Patents

Optical disk apparatus

Info

Publication number
TW200617917A
TW200617917A TW094122012A TW94122012A TW200617917A TW 200617917 A TW200617917 A TW 200617917A TW 094122012 A TW094122012 A TW 094122012A TW 94122012 A TW94122012 A TW 94122012A TW 200617917 A TW200617917 A TW 200617917A
Authority
TW
Taiwan
Prior art keywords
observer
output
optical disk
lpf
disk apparatus
Prior art date
Application number
TW094122012A
Other languages
English (en)
Inventor
Akira Yoshikawa
Kenji Kondo
Original Assignee
Matsushita Electric Ind Co 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 Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Publication of TW200617917A publication Critical patent/TW200617917A/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
    • G11B7/08—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
    • G11B7/0946—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 operation during external perturbations not related to the carrier or servo beam, e.g. vibration
    • 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
    • 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
    • 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
    • G11B7/08511—Methods for track change, selection or preliminary positioning by moving the head with focus pull-in 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
    • G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0009—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage
    • G11B2007/0013—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage for carriers having multiple discrete layers
    • 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

  • Optical Recording Or Reproduction (AREA)
TW094122012A 2004-07-05 2005-06-30 Optical disk apparatus TW200617917A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004198455 2004-07-05

Publications (1)

Publication Number Publication Date
TW200617917A true TW200617917A (en) 2006-06-01

Family

ID=34941812

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094122012A TW200617917A (en) 2004-07-05 2005-06-30 Optical disk apparatus

Country Status (6)

Country Link
US (1) US7525883B2 (zh)
EP (1) EP1615209B1 (zh)
KR (1) KR101120782B1 (zh)
CN (1) CN100444255C (zh)
DE (1) DE602005007291D1 (zh)
TW (1) TW200617917A (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200617917A (en) * 2004-07-05 2006-06-01 Matsushita Electric Ind Co Ltd Optical disk apparatus
RU2348083C1 (ru) * 2004-10-25 2009-02-27 Мацусита Электрик Индастриал Ко., Лтд. Устройство для оптического диска
DE102005018461A1 (de) * 2005-04-20 2006-10-26 Deutsche Thomson-Brandt Gmbh Fokusregelung für optischen Abtaster
US7319570B2 (en) * 2005-09-19 2008-01-15 Seagate Technology Llc Random vibration and shock compensator using a disturbance observer

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0736232B2 (ja) 1988-05-31 1995-04-19 三菱電機株式会社 光ディスクのトラッキング制御装置
JPH09259449A (ja) 1996-03-22 1997-10-03 Hitachi Ltd 光学的情報記録再生装置の位置決め装置
JP3700491B2 (ja) * 1999-09-20 2005-09-28 株式会社日立製作所 アクチュエータ制御装置
JP2002304753A (ja) 2001-04-06 2002-10-18 Matsushita Electric Ind Co Ltd 光学的情報記録再生装置
US6934226B2 (en) 2001-04-12 2005-08-23 Matsushita Electric Industrial Co., Ltd. Optical disk apparatus
JP2002323903A (ja) * 2001-04-25 2002-11-08 Nec Corp サーボ装置
JP4257049B2 (ja) * 2001-07-06 2009-04-22 パイオニア株式会社 多層ディスク記録再生装置およびフォーカスジャンプ方法
JP3885639B2 (ja) * 2001-08-27 2007-02-21 三菱電機株式会社 位置制御方法、およびディスク装置
KR100400045B1 (ko) * 2001-09-03 2003-09-29 삼성전자주식회사 외란 제거 장치 및 방법
JP3853635B2 (ja) 2001-10-31 2006-12-06 松下電器産業株式会社 ディスク制御装置
TW200617917A (en) * 2004-07-05 2006-06-01 Matsushita Electric Ind Co Ltd Optical disk apparatus

Also Published As

Publication number Publication date
DE602005007291D1 (de) 2008-07-17
CN100444255C (zh) 2008-12-17
EP1615209B1 (en) 2008-06-04
US20060002251A1 (en) 2006-01-05
EP1615209A1 (en) 2006-01-11
US7525883B2 (en) 2009-04-28
KR20060049810A (ko) 2006-05-19
KR101120782B1 (ko) 2012-03-23
CN1725315A (zh) 2006-01-25

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