AU2001279817A1 - Method for generating a corrected error signal, and corresponding apparatus - Google Patents

Method for generating a corrected error signal, and corresponding apparatus

Info

Publication number
AU2001279817A1
AU2001279817A1 AU2001279817A AU7981701A AU2001279817A1 AU 2001279817 A1 AU2001279817 A1 AU 2001279817A1 AU 2001279817 A AU2001279817 A AU 2001279817A AU 7981701 A AU7981701 A AU 7981701A AU 2001279817 A1 AU2001279817 A1 AU 2001279817A1
Authority
AU
Australia
Prior art keywords
generating
error signal
corresponding apparatus
corrected error
corrected
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
AU2001279817A
Inventor
Christian Buchler
Friedhelm Zucker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thomson Licensing SAS
Original Assignee
Thomson Licensing SAS
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
Priority claimed from DE2000141569 external-priority patent/DE10041569A1/en
Application filed by Thomson Licensing SAS filed Critical Thomson Licensing SAS
Publication of AU2001279817A1 publication Critical patent/AU2001279817A1/en
Abandoned legal-status Critical Current

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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/13—Optical detectors therefor
    • G11B7/131—Arrangement of detectors in a multiple array
    • 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
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • G11B7/00718—Groove and land recording, i.e. user data recorded both in the grooves and on the lands
    • 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
    • G11B7/0908—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
    • 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
    • G11B7/0943—Methods and circuits for performing mathematical operations on individual detector segment outputs
AU2001279817A 2000-08-24 2001-08-14 Method for generating a corrected error signal, and corresponding apparatus Abandoned AU2001279817A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE10041569 2000-08-24
DE2000141569 DE10041569A1 (en) 2000-08-24 2000-08-24 Corrected error method for optical recording system can normalize signals
DE10062080 2000-12-13
DE10062080 2000-12-13
PCT/EP2001/009360 WO2002017311A1 (en) 2000-08-24 2001-08-14 Method for generating a corrected error signal, and corresponding apparatus

Publications (1)

Publication Number Publication Date
AU2001279817A1 true AU2001279817A1 (en) 2002-03-04

Family

ID=26006802

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001279817A Abandoned AU2001279817A1 (en) 2000-08-24 2001-08-14 Method for generating a corrected error signal, and corresponding apparatus

Country Status (7)

Country Link
US (1) US7466636B2 (en)
EP (1) EP1312082A1 (en)
JP (1) JP2004523052A (en)
KR (1) KR100806214B1 (en)
CN (1) CN100380466C (en)
AU (1) AU2001279817A1 (en)
WO (1) WO2002017311A1 (en)

Families Citing this family (12)

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EP1516321A1 (en) * 2002-06-12 2005-03-23 Koninklijke Philips Electronics N.V. Optical scanning device
DE502004007145D1 (en) * 2003-05-16 2008-06-26 Thomson Licensing METHOD AND DEVICE FOR ADJUSTING A GAIN TO PRODUCE A FOCUS ERROR SIGNAL
WO2004102547A1 (en) * 2003-05-16 2004-11-25 Thomson Licensing Apparatus for reading and/or writing optical recording media
JP2008518380A (en) * 2004-10-26 2008-05-29 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 Correction gain of optical recording device
JP4321469B2 (en) * 2005-03-24 2009-08-26 ソニー株式会社 Disc recording apparatus and method, and recording control program
US20080192610A1 (en) * 2005-06-06 2008-08-14 Koninklijke Philips Electronics, N.V. Optical System with 3 Spot Radial Tracking
ATE441182T1 (en) * 2005-10-14 2009-09-15 Koninkl Philips Electronics Nv APPARATUS AND METHOD FOR SCANNING AN OPTICAL RECORDING MEDIUM AND OPTICAL RECORDING MEDIUM
JP4572824B2 (en) * 2005-12-01 2010-11-04 船井電機株式会社 Focus error signal adjustment method in optical disk apparatus
ATE509348T1 (en) * 2006-07-05 2011-05-15 Daewoo Electronics Corp DEVICE AND METHOD FOR PROCESSING OPTICAL INFORMATION
US8189436B2 (en) * 2008-08-25 2012-05-29 Tdk Optical drive device and amplification rate determining method
WO2016109355A1 (en) 2014-12-23 2016-07-07 Bribbla Dynamics Llc Optical inspection system and method including accounting for variations of optical path length within a sample
JP2023540573A (en) 2020-09-09 2023-09-25 アップル インコーポレイテッド Optical system for noise mitigation

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5993409A (en) * 1982-11-19 1984-05-29 Canon Inc Focusing error detector
US5224082A (en) * 1988-02-26 1993-06-29 Fujitsu Limited Method for detecting tracking error in optical disk system and its optical system devices thereof
JPH0296618U (en) 1989-01-17 1990-08-01
NL9000282A (en) * 1990-02-06 1991-09-02 Philips Nv OPTICAL SCANNING DEVICE WITH MULTIPLE SCANNING SPOTS.
JP2711010B2 (en) * 1990-04-04 1998-02-10 株式会社日本コンラックス Optical head
TW221074B (en) * 1991-05-10 1994-02-11 Philips Nv
US5740141A (en) * 1993-03-09 1998-04-14 Matsushita Electric Industrial Co., Ltd. Signal processing device for an optical information reproducing apparatus
JPH07169070A (en) * 1993-12-15 1995-07-04 Canon Inc Optical information recorder/reproducer
US5642341A (en) * 1994-09-20 1997-06-24 Ricoh Corporation CD ROM apparatus for improved tracking and signal sensing
JPH0896387A (en) * 1994-09-27 1996-04-12 Canon Inc Optical information recording and reproducing device
DE19536396A1 (en) * 1995-09-29 1997-04-03 Thomson Brandt Gmbh Playback and / or recording device for optical recording media of different storage densities
JPH11501444A (en) * 1995-12-27 1999-02-02 フィリップス エレクトロニクス ネムローゼ フェンノートシャップ Apparatus for scanning an optically readable recording medium
US5828634A (en) * 1996-02-22 1998-10-27 Ricoh Company, Ltd. Optical disk tracking method and device for producing a tracking error signal and a track crossing signal
JP2874663B2 (en) 1996-09-06 1999-03-24 日本電気株式会社 Optical head focus error detection method
JP2845224B2 (en) * 1996-11-15 1999-01-13 日本電気株式会社 Land / groove detector
JPH1166579A (en) * 1997-08-13 1999-03-09 Sony Corp Tracking control apparatus and method
JP2000003525A (en) * 1998-06-12 2000-01-07 Sony Corp Signal generation method, signal generation method used for optical disk recording/reproducing device, optical pickup using the method, and optical disk recording/ reproducing device having this optical pickup
US6229771B1 (en) * 1998-10-09 2001-05-08 Zen Research (Ireland), Ltd. Method and apparatus for generating focus error signals in a multi-beam optical disk drive
JP2000187857A (en) 1998-12-18 2000-07-04 Sharp Corp Information recording and reproducing device
JP3617439B2 (en) * 1999-11-02 2005-02-02 ティアック株式会社 Optical disk device
US6567355B2 (en) * 1999-12-03 2003-05-20 Hitachi, Ltd. Optical detector, optical pickup and optical information reproducing apparatus using optical pickup

Also Published As

Publication number Publication date
EP1312082A1 (en) 2003-05-21
CN1471706A (en) 2004-01-28
CN100380466C (en) 2008-04-09
US20040100841A1 (en) 2004-05-27
KR100806214B1 (en) 2008-02-22
US7466636B2 (en) 2008-12-16
KR20040010518A (en) 2004-01-31
JP2004523052A (en) 2004-07-29
WO2002017311A1 (en) 2002-02-28

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