ATE260508T1 - Verfahren zur verbesserten wiedergabe einer digitalen datenplatte - Google Patents

Verfahren zur verbesserten wiedergabe einer digitalen datenplatte

Info

Publication number
ATE260508T1
ATE260508T1 AT01951453T AT01951453T ATE260508T1 AT E260508 T1 ATE260508 T1 AT E260508T1 AT 01951453 T AT01951453 T AT 01951453T AT 01951453 T AT01951453 T AT 01951453T AT E260508 T1 ATE260508 T1 AT E260508T1
Authority
AT
Austria
Prior art keywords
digital data
data disk
control signal
improved reproduction
regulated
Prior art date
Application number
AT01951453T
Other languages
English (en)
Inventor
Palle Andersen
Tom Sondergaard Pedersen
Jakob Stoustrup
Sanchez Enrique Vidal
Original Assignee
Disccontrol Aps
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 Disccontrol Aps filed Critical Disccontrol Aps
Application granted granted Critical
Publication of ATE260508T1 publication Critical patent/ATE260508T1/de

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
    • G11B7/0948—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
    • G11B7/0901—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
    • G11B7/0903—Multi-beam tracking systems
    • 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
    • G11B7/095—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 discs, e.g. for compensation of eccentricity or wobble
    • G11B7/0953—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 discs, e.g. for compensation of eccentricity or wobble to compensate for eccentricity of the disc or disc tracks
    • 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
    • G11B7/0909—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 by astigmatic methods

Landscapes

  • Optical Recording Or Reproduction (AREA)
AT01951453T 2000-07-12 2001-07-11 Verfahren zur verbesserten wiedergabe einer digitalen datenplatte ATE260508T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA200001080 2000-07-12
PCT/DK2001/000485 WO2002005271A1 (en) 2000-07-12 2001-07-11 Method for improved reading of a digital data disc

Publications (1)

Publication Number Publication Date
ATE260508T1 true ATE260508T1 (de) 2004-03-15

Family

ID=8159614

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01951453T ATE260508T1 (de) 2000-07-12 2001-07-11 Verfahren zur verbesserten wiedergabe einer digitalen datenplatte

Country Status (7)

Country Link
US (1) US20040037193A1 (de)
EP (1) EP1301925B1 (de)
JP (1) JP2004503044A (de)
AT (1) ATE260508T1 (de)
AU (1) AU2001272372A1 (de)
DE (1) DE60102162D1 (de)
WO (1) WO2002005271A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070053258A1 (en) * 2002-12-19 2007-03-08 Koninklijke Philips Electronics N.V. Disc drive with improved resistance against mechanical shocks
US6982821B2 (en) * 2003-05-22 2006-01-03 Palo Alto Research Center Incorporated Optical beam position active sensing using satellite beams
US7116613B2 (en) * 2003-05-22 2006-10-03 Palo Alto Research Center Incorporated Optical beam position active sensing and control using satellite beams
WO2005081235A1 (en) * 2004-01-26 2005-09-01 Koninklijke Philips Electronics N.V. Anti-shock optical recording and reproducing device
JP2007520025A (ja) * 2004-01-28 2007-07-19 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ ディスクチルト検出装置
TWI276061B (en) * 2004-05-06 2007-03-11 Lite On It Corp Method for detecting the error information of an optical disc
KR20070106730A (ko) * 2005-01-21 2007-11-05 코닌클리케 필립스 일렉트로닉스 엔.브이. 비선형 관측기를 갖는 디스크 드라이브 장치
JP2009501401A (ja) * 2005-07-15 2009-01-15 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ エラーを訂正するための方法及びシステム
JP2008108373A (ja) * 2006-10-26 2008-05-08 Funai Electric Co Ltd ディスク装置
US8538328B2 (en) * 2008-09-11 2013-09-17 Viasat, Inc. Antenna and satellite alignment using beam projections

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7901721A (nl) * 1979-03-05 1980-09-09 Philips Nv Regelsysteem.
JPS6074129A (ja) * 1983-09-30 1985-04-26 Sony Corp 光学式デイスクのトラツキングサ−ボ回路
JPS6159635A (ja) * 1984-08-29 1986-03-27 Pioneer Electronic Corp 情報読取装置におけるサ−ボ装置
US4764860A (en) * 1985-06-26 1988-08-16 Nippon Gakki Seizo Kabushiki Kaisha Servo circuit for an information recording and/or reproducing apparatus
US4894599A (en) * 1988-03-31 1990-01-16 International Business Machines Corporation deadbeat control of disk drive actuator
DE68923670T2 (de) * 1988-10-05 1996-02-22 Pioneer Electronic Corp Plattenspieler mit Servokreis von variabler Übertragungsfunktion.
DE4104017A1 (de) * 1991-02-09 1992-08-13 Thomson Brandt Gmbh Verfahren zum lesen von daten von einem rotierenden plattenfoermigen aufzeichnungstraeger
US5325247A (en) * 1992-11-12 1994-06-28 Quantum Corporation Digital multi-rate notch filter for sampled servo digital control system
US5642341A (en) * 1994-09-20 1997-06-24 Ricoh Corporation CD ROM apparatus for improved tracking and signal sensing
JPH08203108A (ja) * 1995-01-30 1996-08-09 Toshiba Corp 光ディスク再生装置
JP3559209B2 (ja) * 1998-12-24 2004-08-25 富士通株式会社 記憶装置

Also Published As

Publication number Publication date
EP1301925B1 (de) 2004-02-25
EP1301925A1 (de) 2003-04-16
JP2004503044A (ja) 2004-01-29
WO2002005271A1 (en) 2002-01-17
US20040037193A1 (en) 2004-02-26
AU2001272372A1 (en) 2002-01-21
DE60102162D1 (de) 2004-04-01

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Legal Events

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