TW200617918A - Improved tracking error signal calibration method, and disc drive implementing such method - Google Patents

Improved tracking error signal calibration method, and disc drive implementing such method

Info

Publication number
TW200617918A
TW200617918A TW094123379A TW94123379A TW200617918A TW 200617918 A TW200617918 A TW 200617918A TW 094123379 A TW094123379 A TW 094123379A TW 94123379 A TW94123379 A TW 94123379A TW 200617918 A TW200617918 A TW 200617918A
Authority
TW
Taiwan
Prior art keywords
error signal
tracking error
disc drive
signal calibration
improved tracking
Prior art date
Application number
TW094123379A
Other languages
English (en)
Inventor
Der Heijden Hendrikus C M Van
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of TW200617918A publication Critical patent/TW200617918A/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
    • 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
    • G11B7/0948—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 detection and avoidance or compensation of imperfections on the carrier, e.g. dust, scratches, dropouts
    • 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
    • G11B7/0945—Methods for initialising servos, start-up sequences
    • 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
    • G11B7/08517—Methods for track change, selection or preliminary positioning by moving the head with tracking pull-in only

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
TW094123379A 2004-07-14 2005-07-11 Improved tracking error signal calibration method, and disc drive implementing such method TW200617918A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04103371 2004-07-14

Publications (1)

Publication Number Publication Date
TW200617918A true TW200617918A (en) 2006-06-01

Family

ID=35094211

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094123379A TW200617918A (en) 2004-07-14 2005-07-11 Improved tracking error signal calibration method, and disc drive implementing such method

Country Status (7)

Country Link
US (1) US20080094982A1 (zh)
EP (1) EP1769497A1 (zh)
JP (1) JP2008507071A (zh)
KR (1) KR20070026884A (zh)
CN (1) CN1985314A (zh)
TW (1) TW200617918A (zh)
WO (1) WO2006008670A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3079026B1 (fr) * 2018-03-15 2021-01-01 Sysnav Procede de calibration d'un gyrometre equipant un vehicule

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1270559A (en) * 1985-10-30 1990-06-19 Shigeo Terashima Tracking circuit for an optical information recording and reproducing apparatus
US5251194A (en) * 1989-04-17 1993-10-05 Mitsubishi Denki Kabushiki Kaisha Techniques for controlling beam position and focus in optical disk drives
JPH03187027A (ja) * 1989-12-15 1991-08-15 Ricoh Co Ltd トラッキングサーボ方法
US5343454A (en) * 1991-11-22 1994-08-30 Matsushita Electric Industrial Co., Ltd. Tracking control apparatus for correcting tracking error signal according to approximate equation of a function of track address
JP2826252B2 (ja) * 1993-04-23 1998-11-18 インターナショナル・ビジネス・マシーンズ・コーポレイション 光ディスク・ドライブ及びその信号校正方法
JP3846925B2 (ja) * 1995-12-22 2006-11-15 パイオニア株式会社 トラッキングエラー信号の波形制御装置
US5689485A (en) * 1996-04-01 1997-11-18 Discovision Associates Tracking control apparatus and method
JP3447956B2 (ja) * 1998-05-21 2003-09-16 富士通株式会社 光学的記憶装置
US6963520B1 (en) * 1999-05-18 2005-11-08 Lg Electronics Inc. Method of recording and reproducing an optical recording medium
JP3690955B2 (ja) * 2000-03-01 2005-08-31 松下電器産業株式会社 光ディスク装置
KR100359825B1 (ko) * 2000-08-16 2002-11-07 엘지전자 주식회사 광 기록매체의 서보 방법
US6970403B2 (en) * 2001-01-25 2005-11-29 Dphi Acquisition, Inc. Calibration of tracking error signal offset in a tracking servo system

Also Published As

Publication number Publication date
US20080094982A1 (en) 2008-04-24
WO2006008670A1 (en) 2006-01-26
KR20070026884A (ko) 2007-03-08
JP2008507071A (ja) 2008-03-06
CN1985314A (zh) 2007-06-20
EP1769497A1 (en) 2007-04-04

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