ATE157796T1 - Optische abtastvorrichtung - Google Patents

Optische abtastvorrichtung

Info

Publication number
ATE157796T1
ATE157796T1 AT92201218T AT92201218T ATE157796T1 AT E157796 T1 ATE157796 T1 AT E157796T1 AT 92201218 T AT92201218 T AT 92201218T AT 92201218 T AT92201218 T AT 92201218T AT E157796 T1 ATE157796 T1 AT E157796T1
Authority
AT
Austria
Prior art keywords
signal
tracks
beams
derived
position signal
Prior art date
Application number
AT92201218T
Other languages
English (en)
Inventor
Johannes Leopoldus Bakx
Original Assignee
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 Philips Electronics Nv filed Critical Philips Electronics Nv
Application granted granted Critical
Publication of ATE157796T1 publication Critical patent/ATE157796T1/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
    • G11B7/0943—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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
    • G11B7/08517—Methods for track change, selection or preliminary positioning by moving the head with tracking pull-in 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
    • G11B7/0901—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
    • G11B7/094—Methods and circuits for servo offset compensation

Landscapes

  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Microscoopes, Condenser (AREA)
  • Holo Graphy (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
AT92201218T 1991-05-10 1992-05-04 Optische abtastvorrichtung ATE157796T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP91201139 1991-05-10

Publications (1)

Publication Number Publication Date
ATE157796T1 true ATE157796T1 (de) 1997-09-15

Family

ID=8207652

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92201218T ATE157796T1 (de) 1991-05-10 1992-05-04 Optische abtastvorrichtung

Country Status (7)

Country Link
US (1) US5173598A (de)
EP (1) EP0512625B1 (de)
JP (1) JP3720851B2 (de)
CN (1) CN1032276C (de)
AT (1) ATE157796T1 (de)
DE (1) DE69221931T2 (de)
TW (1) TW226046B (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1069640A (ja) * 1996-08-27 1998-03-10 Mitsumi Electric Co Ltd Ｃｄ−ｒドライブにおけるウォブル信号生成方法
TW444201B (en) * 1998-02-16 2001-07-01 Hitachi Ltd Optical head
KR100766801B1 (ko) * 1999-12-24 2007-10-17 코닌클리케 필립스 일렉트로닉스 엔.브이. 광학 헤드 및 주사장치
KR100748574B1 (ko) * 1999-12-24 2007-08-10 코닌클리케 필립스 일렉트로닉스 엔.브이. 광학 파면 변형기
DE10041569A1 (de) * 2000-08-24 2002-03-07 Thomson Brandt Gmbh Verfahren zum Erzeugen eines korrigierten Fehlersignals sowie entsprechendes Gerät
DE10062079A1 (de) 2000-12-13 2002-06-27 Thomson Brandt Gmbh Verfahren zum Spurzählen und entsprechendes Gerät zum Lesen und/oder Beschreiben eines optischen Aufzeichnungsträgers
DE10062078A1 (de) 2000-12-13 2002-06-20 Thomson Brandt Gmbh Verfahren zum Erzeugen eines Linsenpositionssignals sowie entsprechendes Gerät zum Lesen und/oder Beschreiben eines optischen Aufzeichnungsträgers
JP2002319151A (ja) 2001-04-24 2002-10-31 Sharp Corp 光ピックアップ装置
JP2005535058A (ja) * 2002-07-30 2005-11-17 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 ディスクドライブ装置
US7140409B2 (en) * 2004-11-01 2006-11-28 Matthew Leberfinger Portable pipe cutting apparatus
CN101069235B (zh) 2004-12-02 2011-01-12 皇家飞利浦电子股份有限公司 用于灵敏度补偿的方法和装置
WO2007000682A1 (en) * 2005-06-27 2007-01-04 Arima Devices Corporation Optical pick-up unit for use in an optical player
EP1938320A2 (de) * 2005-09-19 2008-07-02 Arima Devices Corporation Optischer lesekopf mit irrtumskorrektur
CN104317049B (zh) * 2014-10-15 2017-07-04 合肥工业大学 双偏心调整光路装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4340950A (en) * 1979-10-12 1982-07-20 Universal Pioneer Corporation Video disc player
US4462095A (en) * 1982-03-19 1984-07-24 Magnetic Peripherals Inc. Moving diffraction grating for an information track centering system for optical recording
JPS6194246A (ja) * 1984-10-15 1986-05-13 Sony Corp 光学式ヘッドのトラッキング誤差検出方法
NL8500153A (nl) * 1985-01-22 1986-08-18 Philips Nv Registratiedragerlichaam voorzien van een reliefstruktuur van optisch detekteerbare servospoorgedeelten en sektoradressen en inrichting voor het aanbrengen van deze struktuur.
US4750162A (en) * 1985-07-16 1988-06-07 Victor Company Of Japan, Ltd. Optical tracking system utilizing three photo-detectors
DE3672426D1 (de) * 1985-09-27 1990-08-09 Sharp Kk Spurnachlaufverfahren fuer eine optische speicherplatte.
JPS639034A (ja) * 1986-06-30 1988-01-14 Canon Inc 光学的情報記録再生装置
JPH0834005B2 (ja) * 1986-12-23 1996-03-29 日本コロムビア株式会社 光デイスク装置
JPS63291224A (ja) * 1987-05-22 1988-11-29 Brother Ind Ltd 対物レンズ位置検出装置
US5066138A (en) * 1988-06-16 1991-11-19 Mitsubishi Denki Kabushiki Kaisha Optical head apparatus
JPH035927A (ja) * 1989-06-01 1991-01-11 Sony Corp 光学記録および／または再生装置
JPH0354733A (ja) * 1989-07-21 1991-03-08 Sony Corp 光学記録および／または再生装置

Also Published As

Publication number Publication date
DE69221931D1 (de) 1997-10-09
CN1032276C (zh) 1996-07-10
CN1066733A (zh) 1992-12-02
US5173598A (en) 1992-12-22
JPH05128548A (ja) 1993-05-25
EP0512625A3 (de) 1992-12-02
JP3720851B2 (ja) 2005-11-30
DE69221931T2 (de) 1998-03-05
TW226046B (de) 1994-07-01
EP0512625A2 (de) 1992-11-11
EP0512625B1 (de) 1997-09-03

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee