ES2114549T3 - Aparato para grabacion/reproduccion de informacion optica. - Google Patents

Aparato para grabacion/reproduccion de informacion optica.

Info

Publication number
ES2114549T3
ES2114549T3 ES92310364T ES92310364T ES2114549T3 ES 2114549 T3 ES2114549 T3 ES 2114549T3 ES 92310364 T ES92310364 T ES 92310364T ES 92310364 T ES92310364 T ES 92310364T ES 2114549 T3 ES2114549 T3 ES 2114549T3
Authority
ES
Spain
Prior art keywords
registration
points
light
optical information
information
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 - Lifetime
Application number
ES92310364T
Other languages
English (en)
Inventor
Koyama Osamu
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Application granted granted Critical
Publication of ES2114549T3 publication Critical patent/ES2114549T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/1055—Disposition or mounting of transducers relative to record carriers
    • G11B11/10576—Disposition or mounting of transducers relative to record carriers with provision for moving the transducers for maintaining alignment or spacing relative to the carrier
    • 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

Landscapes

  • Optical Recording Or Reproduction (AREA)

Abstract

UN APARATO DE REGISTRO DE INFORMACION OPTICA COMPRENDE UN DISPOSITIVO PARA FORMAR PUNTOS LUMINOSOS PRIMEROS Y SEGUNDOS EN UN MEDIO DE REGISTRO DE INFORMACION OPTICA PARA EJECUTAR EL REGISTRO O REPRODUCCION DE INFORMACION EN EL MEDIO DE REGISTRO Y UN DISPOSITIVO DE CONTROL DE SEGUIMIENTO PARA EFECTUAR UN CONTROL DE SEGUIMIENTO AL MENOS PARA LOS PUNTOS DE LUZ PRIMEROS Y SEGUNDOS. EL APARATO DE INFORMACION OPTICO PUEDE ADEMAS COMPRENDER UN DISPOSITIVO DE DETECCION DE UNA CANTIDAD DE EXCENTRICIDAD DEL MEDIO DE REGISTRO, UN DISPOSITIVO DE CALCULO PARA CALCULAR UNA CANTIDAD DE DESVIO DE SEGUIMIENTO QUE SE ASIGNARA A UNA RELACION PREDETERMINADA A LOS PUNTOS DE LUZ PRIMERO Y SEGUNDO BASADA EN LA CANTIDAD DE EXCENTRICIDAD DETECTADA, INFORMACION DE POSICION DEL PUNTO DE LUZ PRIMERO EN EL MEDIO DE REGISTRO E INFORMACION DE DISTANCIA ENTRE LOS PUNTOS DE LUZ PRIMERO Y SEGUNDO, Y UN DISPOSITIVO DE APLICACION PARA APLICAR LA CANTIDAD DE DESVIACION CALCULADA AL DISPOSITIVO DE CONTROL DE SEGUIMIENTO. EL APARATO DE REGISTRO PUEDE CONTENER UN DISPOSITIVO DE DETECCION PARA DETECTAR UNA CANTIDAD DE DESVIACION DE SEGUIMIENTO RELATIVA DE LOS PUNTOS DE LUZ PRIMERO Y SEGUNDO, Y UN DISPOSITIVO DE CALCULO PARA CALCULAR UNA CANTIDAD DE DESVIACION DE SEGUIMIENTO PARA ASIGNAR LA CANTIDAD DE DESVIACION DE SEGUIMIENTO DETECTADA A UNA RELACION PREDETERMINADA A LOS PUNTOS DE LUZ PRIMERO Y SEGUNDO.
ES92310364T 1991-11-14 1992-11-12 Aparato para grabacion/reproduccion de informacion optica. Expired - Lifetime ES2114549T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32510691A JP3337702B2 (ja) 1991-11-14 1991-11-14 光学的情報記録再生装置

Publications (1)

Publication Number Publication Date
ES2114549T3 true ES2114549T3 (es) 1998-06-01

Family

ID=18173192

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92310364T Expired - Lifetime ES2114549T3 (es) 1991-11-14 1992-11-12 Aparato para grabacion/reproduccion de informacion optica.

Country Status (5)

Country Link
US (1) US5745449A (es)
EP (1) EP0542558B1 (es)
JP (1) JP3337702B2 (es)
DE (1) DE69225113T2 (es)
ES (1) ES2114549T3 (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2732701A (en) * 2000-01-07 2001-07-24 Safeship International, Inc. Method for monitoring parcel shipping systems
US6822934B2 (en) * 2000-06-21 2004-11-23 Matsushita Electric Industrial Co., Ltd. Optical disc apparatus for finding a tracking error for an optical disk
US7020054B2 (en) * 2001-01-25 2006-03-28 Dphi Acquisitions, Inc. Digital servo system with biased feed-forward
US7522480B2 (en) 2001-01-25 2009-04-21 Dphi Acquisitions, Inc. Digital tracking servo system with multi-track seek with an acceleration clamp
JP3708077B2 (ja) 2002-12-27 2005-10-19 株式会社東芝 ディスク記憶装置及び同装置におけるヘッド位置決め方法
JP2005166195A (ja) * 2003-12-04 2005-06-23 Canon Inc 光情報記録再生装置及び光情報記録再生方法
JP2006331471A (ja) * 2005-05-23 2006-12-07 Canon Inc 光情報記録再生装置
TW200731247A (en) * 2005-05-31 2007-08-16 Nec Corp Objective lens driving method and optical disk device
US7680013B2 (en) * 2005-11-29 2010-03-16 Canon Kabushiki Kaisha Optical information recording and reproducing apparatus
US7791986B2 (en) * 2006-03-15 2010-09-07 Canon Kabushiki Kaisha Optical information recording/reproducing apparatus

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51107121A (ja) * 1975-03-17 1976-09-22 Yoshifumi Sakurai Hikarijikikirokuhoshiki
DE3503858A1 (de) * 1985-02-05 1986-08-21 Daimler-Benz Ag, 7000 Stuttgart Vorrichtung zur ermittlung von gestaltsfehlern niedriger ordnung
JPS6226644A (ja) * 1985-07-29 1987-02-04 Hitachi Ltd 光学式情報記録再生装置
US5018124A (en) * 1987-03-31 1991-05-21 Canon Kabushiki Kaisha Information recording method and apparatus for recording information on track positioned at least two tracks ahead when abnormality of tracking servo is detected
JPS6437729A (en) * 1987-08-04 1989-02-08 Canon Kk Optical information recording and reproducing device
US4764914A (en) * 1987-09-11 1988-08-16 Eastman Kodak Company Least squares method and apparatus for determining track eccentricity of a disk
NL8702261A (nl) * 1987-09-23 1989-04-17 Philips Nv Informatie opteken en/of uitlees systeem, alsmede een registratiedrager en opteken en/of uitleesinrichting voor toepassing in een dergelijk systeem.
US5105410A (en) * 1987-12-28 1992-04-14 Ricoh Company, Ltd. Multi-beam optical pick-up
JPH0792554B2 (ja) * 1988-01-07 1995-10-09 日本電気株式会社 複数ビーム集光光学装置
US5105407A (en) * 1989-01-11 1992-04-14 Kabushiki Kaisha Toshiba Optical information-processing apparatus
CA2011384C (en) * 1989-03-09 1994-05-03 Shigenori Yanagi Track access control apparatus for optical disk apparatus
JPH03100931A (ja) * 1989-09-14 1991-04-25 Mitsubishi Electric Corp 光学式情報記録再生装置
US5293366A (en) * 1990-07-26 1994-03-08 Canon Kabushiki Kaisha Information recording and reproducing apparatus provided with means for adding to a tracking signal offset corresponding to the positional deviation of a recording spot and a reproducing spot
JP2685637B2 (ja) * 1990-09-05 1997-12-03 キヤノン株式会社 光学的情報記録再生装置

Also Published As

Publication number Publication date
JPH05135389A (ja) 1993-06-01
US5745449A (en) 1998-04-28
EP0542558A3 (en) 1993-08-11
EP0542558B1 (en) 1998-04-15
JP3337702B2 (ja) 2002-10-21
DE69225113D1 (de) 1998-05-20
EP0542558A2 (en) 1993-05-19
DE69225113T2 (de) 1998-08-20

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