ES2168289T3 - Aparato de disco magneto-optico con microprocesador unico. - Google Patents

Aparato de disco magneto-optico con microprocesador unico.

Info

Publication number
ES2168289T3
ES2168289T3 ES94307427T ES94307427T ES2168289T3 ES 2168289 T3 ES2168289 T3 ES 2168289T3 ES 94307427 T ES94307427 T ES 94307427T ES 94307427 T ES94307427 T ES 94307427T ES 2168289 T3 ES2168289 T3 ES 2168289T3
Authority
ES
Spain
Prior art keywords
servocontrol
information
parameter
established
magneto
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
ES94307427T
Other languages
English (en)
Inventor
Ogino Tsukasa
Baba Hisatoshi
Ando Hirotake
Saga Yoshihiro
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
Priority claimed from JP25580393A external-priority patent/JP3610082B2/ja
Priority claimed from JP16680494A external-priority patent/JPH0830988A/ja
Priority claimed from JP20982694A external-priority patent/JP3154898B2/ja
Priority claimed from JP21875094A external-priority patent/JPH0883448A/ja
Priority claimed from JP21983594A external-priority patent/JPH0887752A/ja
Priority claimed from JP21983694A external-priority patent/JPH0887819A/ja
Application filed by Canon Inc filed Critical Canon Inc
Application granted granted Critical
Publication of ES2168289T3 publication Critical patent/ES2168289T3/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
    • 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
    • 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
    • G11B11/10595—Control of operating function
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head

Landscapes

  • Optical Recording Or Reproduction (AREA)

Abstract

EL PROCESAMIENTO DE ENTRADA/SALIDA DE INFORMACION SE CONTROLA EN UN APARATO DE DISCO MAGNETOOPTICO PARA REGISTRAR Y/O REPRODUCIR LA INFORMACION DE UN SOPORTE DE REGISTRO MAGNETOOPTICO A BASE DE IRRADIAR UNA PISTA DESEADA DEL SOPORTE DE REGISTRO CON UN HAZ LUMINOSO A TRAVES DE UN SISTEMA OPTICO. EL SERVOCONTROL DEL HAZ LUMINOSO TAL COMO UN SERVOCONTROL DE RASTREO, SERVOCONTROL DE ENFOQUE O SIMILAR SE LLEVA A CABO PROVOCANDO UNA INTERRUPCION DEL CONTROL DE PROCESAMIENTO DE ENTRADA/SALIDA. CUANDO SE ACTIVA EL APARATO, SE ESTABLECE UN PARAMETRO PARA EL SERVOCONTROL EN BASE A UNA AMPLITUD DE UNA SEÑAL DE REPRODUCCION DE LA INFORMACION CON UN CAMBIO DE ESTADO DEL SERVOCONTROL Y SE ESTABLECE UN PARAMETRO PARA EL PROCESAMIENTO DE SEÑALES DE LA INFORMACION SEGUN UNA AMPLITUD DE LA SEÑAL DE REPRODUCCION DE LA INFORMACION CORRESPONDIENTE AL PARAMETRO ESTABLECIDO PARA EL SERVOCONTROL.
ES94307427T 1993-10-13 1994-10-11 Aparato de disco magneto-optico con microprocesador unico. Expired - Lifetime ES2168289T3 (es)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP25580393A JP3610082B2 (ja) 1993-10-13 1993-10-13 光磁気ディスク装置
JP16680494A JPH0830988A (ja) 1994-07-19 1994-07-19 光学的情報記録再生装置
JP20982694A JP3154898B2 (ja) 1994-09-02 1994-09-02 光学的情報記録再生装置
JP21875094A JPH0883448A (ja) 1994-09-13 1994-09-13 光学的情報記録再生装置
JP21983594A JPH0887752A (ja) 1994-09-14 1994-09-14 光学的情報記録再生装置
JP21983694A JPH0887819A (ja) 1994-09-14 1994-09-14 情報記録再生装置

Publications (1)

Publication Number Publication Date
ES2168289T3 true ES2168289T3 (es) 2002-06-16

Family

ID=27553322

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94307427T Expired - Lifetime ES2168289T3 (es) 1993-10-13 1994-10-11 Aparato de disco magneto-optico con microprocesador unico.

Country Status (4)

Country Link
US (1) US5699330A (es)
EP (1) EP0649134B1 (es)
DE (1) DE69429609T2 (es)
ES (1) ES2168289T3 (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5825729A (en) * 1993-12-15 1998-10-20 Canon Kabushiki Kaisha Information recording and/or reproducing method and apparatus in which a servo process of a light beam is interrupted between input/output control of data at predetermined periods
JP3062140B2 (ja) 1997-11-10 2000-07-10 日本電気アイシーマイコンシステム株式会社 光ディスクドライブの制御方法
US6378051B1 (en) 1999-06-14 2002-04-23 Maxtor Corporation Interrupt signal prioritized shared buffer memory access system and method
JP2001023317A (ja) * 1999-07-02 2001-01-26 Nec Corp 光ディスク記録再生方法および装置ならびに光ディスク記録再生プログラムを記録した媒体
JP3968495B2 (ja) * 1999-09-16 2007-08-29 ソニー株式会社 光記録媒体駆動装置、フォーカス設定値補正方法、並びに光記録媒体
US6868050B1 (en) * 2000-08-15 2005-03-15 Promos Technologies Inc. Calibration method for writing to optical media
JP4109919B2 (ja) * 2002-07-19 2008-07-02 キヤノン株式会社 光学的情報再生装置
JP4231759B2 (ja) 2003-09-22 2009-03-04 株式会社日立メディアエレクトロニクス 光情報記録装置
JP2005174419A (ja) * 2003-12-09 2005-06-30 Canon Inc 光学的情報記録再生装置及び光学的情報記録再生方法
US20050180276A1 (en) * 2004-02-17 2005-08-18 Canon Kabushiki Kaisha Optical information recording and reproducing apparatus
JP2006018974A (ja) * 2004-07-05 2006-01-19 Pioneer Electronic Corp 情報記録装置及び情報記録媒体
JP2007087440A (ja) * 2005-09-20 2007-04-05 Hitachi-Lg Data Storage Inc 光ディスク装置及びその制御方法
JP2007184039A (ja) * 2006-01-06 2007-07-19 Canon Inc 情報記録装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0687323B2 (ja) * 1986-04-10 1994-11-02 キヤノン株式会社 光磁気記録再生装置
JPS63140429A (ja) * 1986-12-03 1988-06-13 Canon Inc 光学的情報記録再生装置
US4942563A (en) * 1987-09-30 1990-07-17 Kabushiki Kaisha Toshiba Signal processing apparatus and method capable of providing precise digital data
US5260923A (en) * 1988-02-29 1993-11-09 Canon Kabushiki Kaisha Optical information processing apparatus in which an optical head is moved in accordance with a lens positional signal eliminating an eccentric component therefrom
JP2625476B2 (ja) * 1988-03-02 1997-07-02 キヤノン株式会社 光学的記録再生装置
EP0375342B1 (en) * 1988-12-21 1995-02-15 Matsushita Electric Industrial Co., Ltd. Data recording/reproducing apparatus using a recording disk
DE69028035T2 (de) * 1989-04-28 1997-01-16 Canon Kk Optisches Informationsaufnahme-/-wiedergabegerät mit digitaler Servoeinrichtung zum Fokussieren und/oder zur Spurfolge eines optischen Kopfes, basierend auf digitale Information
US4937440A (en) * 1989-08-29 1990-06-26 Hewlett-Packard Company System and method for beam farfield shift focus compensation
JP2540224B2 (ja) * 1990-05-22 1996-10-02 松下電器産業株式会社 光ディスクのサ―ボ装置
JPH04364231A (ja) * 1991-01-07 1992-12-16 Toshiba Corp 光学ヘッド装置
JP3435703B2 (ja) * 1992-05-20 2003-08-11 ソニー株式会社 再生装置、再生方法
EP0600497A3 (en) * 1992-12-04 1995-08-16 Nec Corp Disk drive controlling microcomputer.
JP3433471B2 (ja) * 1993-05-27 2003-08-04 ソニー株式会社 光ディスク装置における信号処理方法

Also Published As

Publication number Publication date
EP0649134B1 (en) 2002-01-09
DE69429609T2 (de) 2002-08-14
US5699330A (en) 1997-12-16
EP0649134A1 (en) 1995-04-19
DE69429609D1 (de) 2002-02-14

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