ATE397268T1 - Verfahren und system zur erzeugung von sphärischen aberrationssignalfehlern - Google Patents

Verfahren und system zur erzeugung von sphärischen aberrationssignalfehlern

Info

Publication number
ATE397268T1
ATE397268T1 AT05751695T AT05751695T ATE397268T1 AT E397268 T1 ATE397268 T1 AT E397268T1 AT 05751695 T AT05751695 T AT 05751695T AT 05751695 T AT05751695 T AT 05751695T AT E397268 T1 ATE397268 T1 AT E397268T1
Authority
AT
Austria
Prior art keywords
sub
msub
mrow
fes
error signal
Prior art date
Application number
AT05751695T
Other languages
English (en)
Inventor
Sjoerd Stallinga
Joris Vrehen
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
Application granted granted Critical
Publication of ATE397268T1 publication Critical patent/ATE397268T1/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
    • 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)
AT05751695T 2004-06-29 2005-06-22 Verfahren und system zur erzeugung von sphärischen aberrationssignalfehlern ATE397268T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04300410 2004-06-29

Publications (1)

Publication Number Publication Date
ATE397268T1 true ATE397268T1 (de) 2008-06-15

Family

ID=35004198

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05751695T ATE397268T1 (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
DE69838745T2 (de) * 1997-10-06 2008-10-30 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
US20070223322A1 (en) 2007-09-27
DE602005007229D1 (de) 2008-07-10
EP1763876B1 (de) 2008-05-28
CN1977321A (zh) 2007-06-06
WO2006003549A1 (en) 2006-01-12
TW200613875A (en) 2006-05-01
EP1763876A1 (de) 2007-03-21
KR20070034604A (ko) 2007-03-28
JP2008504643A (ja) 2008-02-14

Similar Documents

Publication Publication Date Title
ATE329345T1 (de) Verfahren und vorrichtung zur grundfrequenzermittlung
WO2006067697A3 (en) Method and apparatus for detecting abnormality in tooth structure
ATE422326T1 (de) System und verfahren zur verarbeitung von signalen von einem interferometer über ein ultraschallpult
ATE500523T1 (de) Signalsuchverfahren für ein positionierungssystem
DK1095270T3 (da) Screeninganordning og fremgangsmåde til screening af en immunpröve-test
DK1323728T3 (da) Fremgangsmåde til diagnosticering af Alzheimers sygdom på basis af et genstransskriptionsmönster
BR0116418A (pt) Método e disposição para sinais de processamento de ruìdo a partir de uma fonte de ruìdo.
RU96122985A (ru) Способ постфильтрации основного тона синтезированной речи и постфильтр основного тона
ATE313086T1 (de) Digitales system und entsprechendes verfahren zur fehlererkennung
EP0374941A3 (de) Sprachübertragungssystem unter Anwendung von Mehrimpulsanregung
DE602005007229D1 (de) Verfahren und system zur erzeugung von sphärischen aberrationssignalfehlern
RU2001110922A (ru) Способ обнаружения нелинейного объекта с распознаванием типа нелинейности
IT1165641B (it) Sintetizzatore numerico multicanale della voce
TW353748B (en) Speech encoding method and apparatus and pitch detection method and apparatus
TW200421324A (en) Method and related apparatus for deriving a tracking error signal
RU96112393A (ru) Способ оперативного прогнозирования землетрясений, тектонических и техногенных подвижек
RU2105301C1 (ru) Многоканальное акустико-эмиссионное устройство для контроля изделий
ATE464673T1 (de) Verfahren zur verbesserung der messgenauigkeit in einer antennengruppe
DE602005024260D1 (de) System und verfahren zur plapper-geräuschdetektion
ATE383441T1 (de) Verfahren zur detektion von nukleinsäure- zielmolekülen bei dem enzym verbundenen sonde einfangtest sowie geeignetes testsystem
DK0646300T3 (da) Fremgangsmåde til konstatering af fejl ved digitaliserede, datareducerede lyd- og datasignaler
ATE338330T1 (de) Verfahren und vorrichtung zur zweiphasen- grundfrequenzdetektion
DE3577006D1 (de) Verfahren und vorrichtung zur detektion und abbildung von messpunkten, die einen bestimmten signalverlauf aufweisen.
ATE492018T1 (de) Fotodioden-ic
EP1225571A3 (de) Gerät zur Detektion von Vorsatzlöchern

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties