WO2005034103A3 - Appareil du type unite de disque - Google Patents

Appareil du type unite de disque Download PDF

Info

Publication number
WO2005034103A3
WO2005034103A3 PCT/IB2004/051891 IB2004051891W WO2005034103A3 WO 2005034103 A3 WO2005034103 A3 WO 2005034103A3 IB 2004051891 W IB2004051891 W IB 2004051891W WO 2005034103 A3 WO2005034103 A3 WO 2005034103A3
Authority
WO
WIPO (PCT)
Prior art keywords
read signal
signal
read
drive apparatus
disc
Prior art date
Application number
PCT/IB2004/051891
Other languages
English (en)
Other versions
WO2005034103A2 (fr
Inventor
Marcel F Heertjes
Franciscus L M Cremers
Frank B Sperling
George A L Leenknegt
Horst Rumpf
Original Assignee
Koninkl Philips Electronics Nv
Marcel F Heertjes
Franciscus L M Cremers
Frank B Sperling
George A L Leenknegt
Horst Rumpf
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, Marcel F Heertjes, Franciscus L M Cremers, Frank B Sperling, George A L Leenknegt, Horst Rumpf filed Critical Koninkl Philips Electronics Nv
Priority to EP04770107A priority Critical patent/EP1671320A2/fr
Priority to JP2006530936A priority patent/JP2007507822A/ja
Publication of WO2005034103A2 publication Critical patent/WO2005034103A2/fr
Publication of WO2005034103A3 publication Critical patent/WO2005034103A3/fr

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
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • 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
    • G11B7/0946—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

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)

Abstract

L'invention concerne un procédé pour commander une unité de disque optique (1) d'un type comprenant: des moyens d'exploration (30) permettant d'explorer une piste d'enregistrement d'un disque optique (2) et de générer un signal de lecture (SR); des moyens formant actionneur (50) permettant de commander le positionnement d'au moins un élément de lecture/écriture (34) desdits moyens d'exploration (30) par rapport au disque (2); un circuit de commande (90) permettant de recevoir ledit signal de lecture (SR) et de générer au moins un signal de commande d'actionneur (SCR) sur la base d'au moins une composante dudit signal de lecture (SR), ce circuit de commande (90) présentant au moins un paramètre de commande variable. Ledit procédé comporte les étapes consistant à: dériver dudit signal de lecture (SR) au moins deux signaux (REn; MIRn) de types mutuellement différents; et modifier le réglage d'au moins un paramètre de commande variable en fonction desdits au moins deux signaux.
PCT/IB2004/051891 2003-10-02 2004-09-28 Appareil du type unite de disque WO2005034103A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP04770107A EP1671320A2 (fr) 2003-10-02 2004-09-28 Appareil du type unite de disque
JP2006530936A JP2007507822A (ja) 2003-10-02 2004-09-28 ディスクドライブ装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP03103662 2003-10-02
EP03103662.7 2003-10-02

Publications (2)

Publication Number Publication Date
WO2005034103A2 WO2005034103A2 (fr) 2005-04-14
WO2005034103A3 true WO2005034103A3 (fr) 2005-08-25

Family

ID=34400546

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2004/051891 WO2005034103A2 (fr) 2003-10-02 2004-09-28 Appareil du type unite de disque

Country Status (6)

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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0834873A1 (fr) * 1996-10-04 1998-04-08 Deutsche Thomson-Brandt Gmbh Dispositif d'enregistrement ou de reproduction pour des supports d'enregistrement optiques avec circuit d'asservissement, et méthode de traitement de signaux d'erreur dans un tel dispositif
DE19931835A1 (de) * 1999-07-09 2001-01-11 Thomson Brandt Gmbh Gerät zum Lesen oder Beschreiben optischer Aufzeichnungsträger
US20020185585A1 (en) * 2001-05-03 2002-12-12 Jutte Petrus Theodorus Optical scanning device
US20030142599A1 (en) * 2002-01-31 2003-07-31 Kabushiki Kaisha Toshiba Optical disk apparatus and tracking error signal generating method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0834873A1 (fr) * 1996-10-04 1998-04-08 Deutsche Thomson-Brandt Gmbh Dispositif d'enregistrement ou de reproduction pour des supports d'enregistrement optiques avec circuit d'asservissement, et méthode de traitement de signaux d'erreur dans un tel dispositif
DE19931835A1 (de) * 1999-07-09 2001-01-11 Thomson Brandt Gmbh Gerät zum Lesen oder Beschreiben optischer Aufzeichnungsträger
US20020185585A1 (en) * 2001-05-03 2002-12-12 Jutte Petrus Theodorus Optical scanning device
US20030142599A1 (en) * 2002-01-31 2003-07-31 Kabushiki Kaisha Toshiba Optical disk apparatus and tracking error signal generating method

Also Published As

Publication number Publication date
KR20060088890A (ko) 2006-08-07
CN1860533A (zh) 2006-11-08
EP1671320A2 (fr) 2006-06-21
JP2007507822A (ja) 2007-03-29
TW200516572A (en) 2005-05-16
WO2005034103A2 (fr) 2005-04-14

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