TW200516572A - Disc drive apparatus - Google Patents

Disc drive apparatus

Info

Publication number
TW200516572A
TW200516572A TW093129437A TW93129437A TW200516572A TW 200516572 A TW200516572 A TW 200516572A TW 093129437 A TW093129437 A TW 093129437A TW 93129437 A TW93129437 A TW 93129437A TW 200516572 A TW200516572 A TW 200516572A
Authority
TW
Taiwan
Prior art keywords
read signal
signal
drive apparatus
read
disc drive
Prior art date
Application number
TW093129437A
Other languages
English (en)
Chinese (zh)
Inventor
Marcel Francois Heertjes
Franciscus Lambertus Maria Cremers
Frank Bernhard Sperling
George Alois Leonie Leenknegt
Horst Rumpf
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 TW200516572A publication Critical patent/TW200516572A/zh

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09Disposition 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
    • G11B7/0948Disposition 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
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09Disposition 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
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/18Error detection or correction; Testing, e.g. of drop-outs
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09Disposition 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
    • G11B7/0941Methods and circuits for servo gain or phase compensation during operation
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09Disposition 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
    • G11B7/0946Disposition 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
TW093129437A 2003-10-02 2004-09-29 Disc drive apparatus TW200516572A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03103662 2003-10-02

Publications (1)

Publication Number Publication Date
TW200516572A true TW200516572A (en) 2005-05-16

Family

ID=34400546

Family Applications (1)

Application Number Title Priority Date Filing Date
TW093129437A TW200516572A (en) 2003-10-02 2004-09-29 Disc drive apparatus

Country Status (6)

Country Link
EP (1) EP1671320A2 (ko)
JP (1) JP2007507822A (ko)
KR (1) KR20060088890A (ko)
CN (1) CN1860533A (ko)
TW (1) TW200516572A (ko)
WO (1) WO2005034103A2 (ko)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19640870A1 (de) * 1996-10-04 1998-04-09 Thomson Brandt Gmbh Aufzeichnungs- oder Wiedergabegerät für optische Informationsträger mit einem Servo-Regelkreis und Verfahren zur Fehlersignalbehandlung in einem solchen
DE19931835A1 (de) * 1999-07-09 2001-01-11 Thomson Brandt Gmbh Gerät zum Lesen oder Beschreiben optischer Aufzeichnungsträger
KR20030019948A (ko) * 2001-05-03 2003-03-07 코닌클리케 필립스 일렉트로닉스 엔.브이. 광학 주사장치
JP3566701B2 (ja) * 2002-01-31 2004-09-15 株式会社東芝 光ディスク記録再生装置

Also Published As

Publication number Publication date
CN1860533A (zh) 2006-11-08
WO2005034103A3 (en) 2005-08-25
KR20060088890A (ko) 2006-08-07
JP2007507822A (ja) 2007-03-29
WO2005034103A2 (en) 2005-04-14
EP1671320A2 (en) 2006-06-21

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