ATE221689T1 - Informationsaufzeichnungs/-wiedergabegerät - Google Patents

Informationsaufzeichnungs/-wiedergabegerät

Info

Publication number
ATE221689T1
ATE221689T1 AT95308327T AT95308327T ATE221689T1 AT E221689 T1 ATE221689 T1 AT E221689T1 AT 95308327 T AT95308327 T AT 95308327T AT 95308327 T AT95308327 T AT 95308327T AT E221689 T1 ATE221689 T1 AT E221689T1
Authority
AT
Austria
Prior art keywords
signal
light beam
disc
control
photo
Prior art date
Application number
AT95308327T
Other languages
English (en)
Inventor
Yuji C O Int Prop Div So Kumai
Kyoko C O Int Prop Div Suzuki
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of ATE221689T1 publication Critical patent/ATE221689T1/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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • 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
    • 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
    • G11B7/0941—Methods and circuits for servo gain or phase compensation during operation
    • 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
    • G11B11/10578—Servo format, e.g. prepits, guide tracks, pilot signals
    • 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
    • G11B7/0904—Dithered 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
    • G11B7/0938—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 servo format, e.g. guide tracks, pilot signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
  • Optical Head (AREA)
AT95308327T 1994-11-22 1995-11-21 Informationsaufzeichnungs/-wiedergabegerät ATE221689T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6287796A JPH08147699A (ja) 1994-11-22 1994-11-22 情報記録再生装置

Publications (1)

Publication Number Publication Date
ATE221689T1 true ATE221689T1 (de) 2002-08-15

Family

ID=17721866

Family Applications (1)

Application Number Title Priority Date Filing Date
AT95308327T ATE221689T1 (de) 1994-11-22 1995-11-21 Informationsaufzeichnungs/-wiedergabegerät

Country Status (10)

Country Link
US (1) US5742578A (de)
EP (1) EP0714092B1 (de)
JP (1) JPH08147699A (de)
KR (1) KR960019138A (de)
CN (1) CN1080917C (de)
AT (1) ATE221689T1 (de)
AU (1) AU692938B2 (de)
CA (1) CA2163176C (de)
DE (1) DE69527599T2 (de)
MY (1) MY114205A (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2856390B2 (ja) 1996-07-26 1999-02-10 株式会社日立製作所 情報記録媒体及びそれを用いた記録再生方法
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
JP3504082B2 (ja) * 1996-09-03 2004-03-08 パイオニア株式会社 収差補正光学装置及び記録媒体再生装置
CN1199490A (zh) * 1996-09-03 1998-11-18 菲利浦电子有限公司 信息载体,用于写和/或读信息块的读/写设备和读设备
EP0930611A4 (de) 1996-09-26 2003-02-12 Sanyo Electric Co Aufzeichnungsträger und wiedergabegerät dafür
JPH10320781A (ja) * 1997-05-20 1998-12-04 Pioneer Electron Corp プリピット信号検出装置及び検出方法
JP4144054B2 (ja) * 1997-07-24 2008-09-03 ソニー株式会社 光ディスクの記録方法
JP2001134943A (ja) 1999-11-05 2001-05-18 Yamaha Corp 光ディスク記録装置のプッシュプル信号処理回路およびウォブル抽出回路ならびにプリピット検出回路
AU2001282561B2 (en) * 2000-09-01 2006-07-20 Matsushita Electric Industrial Co., Ltd. Optical disc medium, optical disc playback and recorder
JP4161716B2 (ja) * 2000-11-20 2008-10-08 ソニー株式会社 光学記録媒体および光ディスク装置
JP4517534B2 (ja) * 2001-05-11 2010-08-04 ソニー株式会社 ディスクドライブ装置
EP1369872A2 (de) 2002-06-05 2003-12-10 Kabushiki Kaisha Toshiba Auswerteverfahren eines wiedergegebenen Signals, Informationsaufzeichnungsmedium, Informationswiedergabegerät, Informationswiedergabeverfahren, und Informationsaufzeichnungsverfahren
CN100513994C (zh) * 2003-12-17 2009-07-15 联发科技股份有限公司 决定物镜位置差与驱动电压间相对关系的方法及装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6446237A (en) * 1987-08-12 1989-02-20 Canon Kk Optical information recording and reproducing device
US5126994A (en) * 1988-11-29 1992-06-30 Sony Corporation Method and apparatus for controlling and detecting recording laser beam
DE3923330A1 (de) * 1989-07-14 1991-01-24 Thomson Brandt Gmbh Optische abtastvorrichtung
JPH06290462A (ja) * 1993-04-05 1994-10-18 Sony Corp 信号検出方法及び信号検出装置

Also Published As

Publication number Publication date
JPH08147699A (ja) 1996-06-07
EP0714092B1 (de) 2002-07-31
CA2163176A1 (en) 1996-05-23
KR960019138A (ko) 1996-06-17
EP0714092A1 (de) 1996-05-29
AU692938B2 (en) 1998-06-18
CN1135637A (zh) 1996-11-13
DE69527599T2 (de) 2003-04-03
CN1080917C (zh) 2002-03-13
DE69527599D1 (de) 2002-09-05
AU3789695A (en) 1996-05-30
MY114205A (en) 2002-08-30
CA2163176C (en) 2005-11-15
US5742578A (en) 1998-04-21

Similar Documents

Publication Publication Date Title
MY113337A (en) Disc apparatus for reproducing information signals recorded on disc-shaped recording medium and reproducing method
ATE221689T1 (de) Informationsaufzeichnungs/-wiedergabegerät
JPS59198537A (ja) 光学的記録再生装置
KR970007885A (ko) 광디스크장치
DE69131086D1 (de) Gerät zum Aufzeichnen und Wiedergeben von optischen Platten
MY130581A (en) Write once optical disc recording apparatus
EP0371880A3 (de) Verfahren und Vorrichtung zum Steuern und Detektieren eines Aufzeichnungslasers
EP0430811A2 (de) Optomagnetisches Signalwiedergabegerät
KR960019143A (ko) 광픽업장치 및 그 광출력 제어방법
MY123361A (en) Method for controlling laser light power, method for data recording into optical disc, and optical disc recording apparatus.
WO2000077780A8 (fr) Dispositif d'entrainement pour support d'enregistrement et procede de detection d'inclinaison
ATE26035T1 (de) Geraet zur wiedergabe von platten.
KR930006661A (ko) 광 디스크 장치
MY125769A (en) Optical disc recording and reproducing apparatus
EP1195749A3 (de) Mehrschichtiges drehbares Aufzeichnungsmedium und Aufzeichnungs-/-Wiedergabeverfahren und -Vorrichtung dafür
ATE96241T1 (de) Wiedergabegeraet fuer magneto-optische speicherplatten.
KR950704783A (ko) 광디스크 기록장치
KR870007486A (ko) 트랙점프 검출장치
KR100693685B1 (ko) 기록매체 고밀도 기록 장치 및 방법
JP3357095B2 (ja) 光磁気ディスクエッジ記録再生装置
KR930016960A (ko) 광 디스크 장치
JPH0312375B2 (de)
JPS5589919A (en) Information recorder
JPH0312376B2 (de)
KR930008742A (ko) 광테이프의 기록 및/또는 재생장치

Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification