DE602005007229D1 - Verfahren und system zur erzeugung von sphärischen aberrationssignalfehlern - Google Patents

Verfahren und system zur erzeugung von sphärischen aberrationssignalfehlern

Info

Publication number
DE602005007229D1
DE602005007229D1 DE602005007229T DE602005007229T DE602005007229D1 DE 602005007229 D1 DE602005007229 D1 DE 602005007229D1 DE 602005007229 T DE602005007229 T DE 602005007229T DE 602005007229 T DE602005007229 T DE 602005007229T DE 602005007229 D1 DE602005007229 D1 DE 602005007229D1
Authority
DE
Germany
Prior art keywords
sub
msub
mrow
fes
error signal
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.)
Expired - Fee Related
Application number
DE602005007229T
Other languages
English (en)
Inventor
Sjoerd Stallinga
Joris Vrehen
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke 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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of DE602005007229D1 publication Critical patent/DE602005007229D1/de
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G11B7/08—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
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
    • G11B7/13925—Means for controlling the beam wavefront, e.g. for correction of aberration active, e.g. controlled by electrical or mechanical means
    • 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
    • G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0009—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage
    • G11B2007/0013—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage for carriers having multiple discrete layers

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
  • Nuclear Medicine (AREA)
  • Automatic Focus Adjustment (AREA)
  • Optical Communication System (AREA)
DE602005007229T 2004-06-29 2005-06-22 Verfahren und system zur erzeugung von sphärischen aberrationssignalfehlern Expired - Fee Related DE602005007229D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP04300410 2004-06-29
PCT/IB2005/052043 WO2006003549A1 (en) 2004-06-29 2005-06-22 Method and system for generating a spherical aberration signal error

Publications (1)

Publication Number Publication Date
DE602005007229D1 true DE602005007229D1 (de) 2008-07-10

Family

ID=35004198

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005007229T Expired - Fee Related DE602005007229D1 (de) 2004-06-29 2005-06-22 Verfahren und system zur erzeugung von sphärischen aberrationssignalfehlern

Country Status (9)

Country Link
US (1) US20070223322A1 (de)
EP (1) EP1763876B1 (de)
JP (1) JP2008504643A (de)
KR (1) KR20070034604A (de)
CN (1) CN1977321A (de)
AT (1) ATE397268T1 (de)
DE (1) DE602005007229D1 (de)
TW (1) TW200613875A (de)
WO (1) WO2006003549A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7859967B2 (en) * 2007-08-30 2010-12-28 Lite-On It Corporation Optical disk drive with spherical aberration measurement and method of measuring spherical aberration in an optical disk drive

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8400674A (nl) * 1984-03-02 1985-10-01 Philips Nv Inrichting voor het inschrijven en/of uitlezen van informatie in een spoor van een reflekterende registratiedrager, met een fokusregeling met verminderde spot offsetgevoeligheid.
KR100200857B1 (ko) * 1995-10-04 1999-06-15 윤종용 광픽업장치
JPH10198985A (ja) * 1997-01-10 1998-07-31 Sony Corp 光ディスク装置
EP0943112B1 (de) * 1997-10-06 2007-11-21 Koninklijke Philips Electronics N.V. Detektionssystem der sphärischen aberration und dieses verwendende optische vorrichtung
JP2000182254A (ja) * 1998-12-15 2000-06-30 Pioneer Electronic Corp ピックアップ装置
JP2002358677A (ja) * 2001-05-28 2002-12-13 Hitachi Ltd 光ヘッド及び光ディスク装置
CN1277252C (zh) * 2002-04-26 2006-09-27 松下电器产业株式会社 光盘装置、光束点的移动方法、在光盘装置中执行的程序
CN1299274C (zh) * 2002-10-02 2007-02-07 松下电器产业株式会社 光盘装置

Also Published As

Publication number Publication date
KR20070034604A (ko) 2007-03-28
WO2006003549A1 (en) 2006-01-12
CN1977321A (zh) 2007-06-06
EP1763876B1 (de) 2008-05-28
ATE397268T1 (de) 2008-06-15
EP1763876A1 (de) 2007-03-21
US20070223322A1 (en) 2007-09-27
JP2008504643A (ja) 2008-02-14
TW200613875A (en) 2006-05-01

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee