DE3852281D1 - Verfahren und Gerät zur Datenaufnahme/Wiedergabe. - Google Patents

Verfahren und Gerät zur Datenaufnahme/Wiedergabe.

Info

Publication number
DE3852281D1
DE3852281D1 DE3852281T DE3852281T DE3852281D1 DE 3852281 D1 DE3852281 D1 DE 3852281D1 DE 3852281 T DE3852281 T DE 3852281T DE 3852281 T DE3852281 T DE 3852281T DE 3852281 D1 DE3852281 D1 DE 3852281D1
Authority
DE
Germany
Prior art keywords
playback
data recording
recording
data
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
DE3852281T
Other languages
English (en)
Other versions
DE3852281T2 (de
Inventor
Takeshi Maeda
Yoshito Tsunoda
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 JP62318820A external-priority patent/JP2641468B2/ja
Priority claimed from JP63054851A external-priority patent/JP2776822B2/ja
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Application granted granted Critical
Publication of DE3852281D1 publication Critical patent/DE3852281D1/de
Publication of DE3852281T2 publication Critical patent/DE3852281T2/de
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
    • G11B7/0938—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
    • 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
    • G11B11/10556—Disposition or mounting of transducers relative to record carriers with provision for moving or switching or masking the transducers in or out of their operative position
    • G11B11/10563—Access of indexed parts
    • G11B11/10565—Marks for track change, e.g. prepits, gray codes
    • 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
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/10—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following
    • G11B21/106—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following on disks
DE3852281T 1987-12-18 1988-12-16 Verfahren und Gerät zur Datenaufnahme/Wiedergabe. Expired - Lifetime DE3852281T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP62318820A JP2641468B2 (ja) 1987-12-18 1987-12-18 トラッキング装置
JP63054851A JP2776822B2 (ja) 1988-03-10 1988-03-10 光ディスクの記録再生方法及びその装置

Publications (2)

Publication Number Publication Date
DE3852281D1 true DE3852281D1 (de) 1995-01-12
DE3852281T2 DE3852281T2 (de) 1995-07-20

Family

ID=26395667

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3852281T Expired - Lifetime DE3852281T2 (de) 1987-12-18 1988-12-16 Verfahren und Gerät zur Datenaufnahme/Wiedergabe.

Country Status (3)

Country Link
US (1) US5073880A (de)
EP (1) EP0320975B1 (de)
DE (1) DE3852281T2 (de)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5253244A (en) * 1980-07-16 1993-10-12 Discovision Associates System for recording digital information in a pulse-length modulation format
JP2669532B2 (ja) * 1988-05-20 1997-10-29 株式会社日立製作所 光ディスク装置
US5396477A (en) * 1988-09-21 1995-03-07 Hitachi, Ltd. Light spot positioning method and optical disc memory apparatus employing the same
US5193081A (en) * 1989-02-28 1993-03-09 Kabushiki Kaisha Toshiba Track-accessing controller for optical disks
JP2589370B2 (ja) * 1989-04-13 1997-03-12 シャープ株式会社 光ディスク装置
DE69023390T2 (de) * 1989-05-16 1996-03-28 Victor Company Of Japan Elektrostatisches Ladungsbildaufzeichnungsmedium und Aufnahme-/Wiedergabegerät.
US5185730A (en) * 1989-06-01 1993-02-09 Pioneer Electronic Corporation Method for reading data from optical disk
US5237554A (en) * 1989-12-27 1993-08-17 Sony Corporation Apparatus for generating clock signals for data reproduction
FR2660461B1 (fr) * 1990-04-03 1994-10-28 Atg Sa Support d'informations pregrave a marques deportees, procede de realisation des marques ainsi que procede d'elaboration d'un signal d'erreur de suivi radial et dispositif de lecture pour la mise en óoeuvre du procede.
US5270991A (en) * 1990-06-29 1993-12-14 North American Philips Corporation Track format for use with an optical record carrier having a varying track pitch
US5537379A (en) * 1991-05-10 1996-07-16 Discovision Associates Optical data storage and retrieval system and method
SG87796A1 (en) * 1991-05-10 2002-04-16 Discovision Ass Optical data storage and retrieval system including method for processing data on erasable optical disc
US5377178A (en) * 1991-10-11 1994-12-27 Hitachi, Ltd. Data recording/reproducing method and apparatus using a recording medium having clock marks recorded in a wobbled track for read/write synchronization
US5265085A (en) * 1992-06-15 1993-11-23 International Business Machines Simultaneous MO and ROM optical disk signal detection
JPH0696524A (ja) * 1992-09-11 1994-04-08 Sony Corp 記録媒体、記録方法、記録再生装置およびカッティング装置
US5790495A (en) * 1994-05-06 1998-08-04 Discovision Associates Data generator assembly for retrieving stored data by comparing threshold signal with preprocessed signal having DC component
US5561655A (en) * 1994-12-02 1996-10-01 Eastman Kodak Company Apparatus and method for differential tracking in a magneto-optic data storage system using mark edge detection
JP2666747B2 (ja) * 1994-12-14 1997-10-22 日本電気株式会社 磁気ディスク装置の磁気ヘッド位置決め回路
JPH09167308A (ja) * 1995-12-19 1997-06-24 Canon Electron Inc 磁気再生方法、磁気検出素子、磁気検出装置、及び磁気記録媒体
ES2198582T3 (es) * 1996-09-03 2004-02-01 Koninklijke Philips Electronics N.V. Soporte de informacion, dispositivo de lectura/escritura y dispositivo de lectura para grabar y/o leer bloques de informacion.
US6747930B1 (en) 1996-12-24 2004-06-08 Hide & Seek Technologies, Inc. Data protection on an optical disk
JP3555055B2 (ja) * 1997-04-07 2004-08-18 パイオニア株式会社 プリピット検出装置及び情報記録装置
JP3699813B2 (ja) * 1997-09-25 2005-09-28 株式会社リコー 光ディスク装置
JP3753517B2 (ja) 1997-10-20 2006-03-08 富士通株式会社 光記録媒体ドライブ装置
WO1999022340A1 (en) * 1997-10-28 1999-05-06 Hide And Seek Technologies, Inc. Optical disc authentication and data storage
JP3732650B2 (ja) * 1998-03-26 2006-01-05 パイオニア株式会社 プリピット検出装置
JP4102483B2 (ja) 1998-06-02 2008-06-18 パイオニア株式会社 情報記録装置
JP2000132835A (ja) * 1998-10-23 2000-05-12 Pioneer Electronic Corp ディスクプレーヤ
JP2001084596A (ja) * 1999-09-10 2001-03-30 Matsushita Electric Ind Co Ltd 光ディスクおよび光ディスク装置
US6538966B1 (en) * 2000-10-06 2003-03-25 Hewlett-Packard Company Accurate positioning of data marks and spaces relative to groove wobble on a rewritable optical disc
US7522480B2 (en) 2001-01-25 2009-04-21 Dphi Acquisitions, Inc. Digital tracking servo system with multi-track seek with an acceleration clamp
JP2004259384A (ja) * 2003-02-26 2004-09-16 Toshiba Corp 光ディスク装置のトラッキング誤差検出装置

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4364118A (en) * 1979-06-25 1982-12-14 Hitachi, Ltd. Optical disk and optical information processor
JPS5766573A (en) * 1980-10-13 1982-04-22 Victor Co Of Japan Ltd Detecting circuit for reference signal for tracking control
FR2511537B1 (fr) * 1981-08-14 1986-09-05 Thomson Csf Dispositif optique de suivi de piste a echantillonnage
JPS5873023A (ja) * 1981-10-27 1983-05-02 Pioneer Electronic Corp 情報読取装置におけるトラツキングサ−ボ信号発生装置
FR2523348A1 (fr) * 1982-03-12 1983-09-16 Thomson Csf Procede et dispositif de regeneration de phase de signaux de synchronisation dans un appareil optique d'ecriture-lecture de support d'information
FR2523349A1 (fr) * 1982-03-12 1983-09-16 Thomson Csf Procede et dispositif optique de generation de signaux d'asservissements de la position d'une tache d'exploration des pistes d'un support d'information
FR2523345A1 (fr) * 1982-03-12 1983-09-16 Thomson Csf Procede et dispositif de generation de signaux de synchronisation dans un appareil optique d'ecriture-lecture de support d'information
JPS58161160A (ja) * 1982-03-19 1983-09-24 Hitachi Ltd 光デイスクおよび装置
JPS59191142A (ja) * 1983-04-13 1984-10-30 Asahi Optical Co Ltd 光デイスクプレ−ヤ用トラツキングサ−ボ回路
JPH0690804B2 (ja) * 1984-01-20 1994-11-14 株式会社日立製作所 光学的情報記録再生装置
FR2567673B1 (fr) * 1984-07-10 1986-11-07 Thomson Alcatel Gigadisc Support d'information inscriptible optiquement selon une piste definie par des motifs de pregravure et dispositif optique de suivi de piste mettant en oeuvre un tel support
US4748609A (en) * 1985-03-29 1988-05-31 Hitachi, Ltd. Method and apparatus for composite tracking servo system with track offset correction and rotary optical disc having at least one correction mark for correcting track offset
US5012460A (en) * 1985-05-31 1991-04-30 Information Storage, Inc. RAM head positioning and tracking system
US4879708A (en) * 1985-07-30 1989-11-07 Laser Magnetic Storage International Company Optical disk tracking and seeking systems specific track formats using wobbled pits
JP2559372B2 (ja) * 1986-07-09 1996-12-04 株式会社日立製作所 光ディスク装置及び光情報記録方法
JP2641491B2 (ja) * 1988-04-15 1997-08-13 パイオニア株式会社 トラッキングエラー信号生成装置

Also Published As

Publication number Publication date
DE3852281T2 (de) 1995-07-20
EP0320975B1 (de) 1994-11-30
US5073880A (en) 1991-12-17
EP0320975A2 (de) 1989-06-21
EP0320975A3 (en) 1990-01-17

Similar Documents

Publication Publication Date Title
DE3852281D1 (de) Verfahren und Gerät zur Datenaufnahme/Wiedergabe.
DE69027726D1 (de) Verfahren und Einrichtung zur Datenaufzeichnung und -Wiedergabe
DE68920727D1 (de) Verfahren und Vorrichtung zur Aufzeichnung und Wiedergabe von Information mit mehreren Kanal-Audio Signalen.
DE69322590D1 (de) Verfahren und Vorrichtung zur Aufzeichnung und Wiedergabe von Information
DE3679035D1 (de) Verfahren und geraet zur aufzeichnung von signalen.
DE68920170D1 (de) Verfahren und Einrichtung zur Aufzeichnung und Wiedergabe von Bildinformation.
DE69124817D1 (de) Verfahren und Gerät zur Aufzeichnung von Daten
DE3752242D1 (de) Verfahren und Vorrichtung zur Aufzeichnung und Wiedergabe von Information
DE3850530D1 (de) System und Verfahren zur Aufnahme/Wiedergabe mit Aufnahmebeschränkungsfunktion.
DE3677305D1 (de) Verfahren und geraet zur optischen aufnahme und wiedergabe.
DE68927280D1 (de) Verfahren zur Informationsaufzeichnung und -wiedergabe, Vorrichtung dazu und Aufzeichnungsmedium
DE69326729D1 (de) Gerät und Verfahren zur Aufzeichnung digitaler Daten
DE3380913D1 (de) Verfahren und geraet zur aufzeichnung eines informationssignals.
DE3686010D1 (de) Optisches aufzeichnungsmedium und verfahren zur aufzeichnung.
DE3853206D1 (de) Verfahren und gerät zur byteschreibfehlerkodierung.
DE68920817D1 (de) Gerät und Verfahren für magnetische Quasikontakt-Aufzeichnung.
DE3876133D1 (de) Vorrichtung und aufzeichnungstraeger zur magneto-optischen aufzeichnung.
KR870007500A (ko) 디지탈 정보 기록재생 방법 및 그 장치
DE3885352D1 (de) Einrichtung und Verfahren zur Wiedergabe von magneto-optischen Platten.
DE69030865D1 (de) Aufzeichnungsmedium und Verfahren zur Wiedergabe dafür
DE3584921D1 (de) Verfahren und geraet zur wiedergabe von daten von aufzeichnungsplatten.
DE69126343D1 (de) Verfahren/Gerät zur Informationsaufzeichnung und Informationswiedergabe
DE3784180D1 (de) Verfahren und vorrichtung fuer videosignalaufzeichnung und -wiedergabe.
DE3684440D1 (de) Verfahren und geraet zur magneto-optischen aufnahme und wiedergabe.
DE3871422D1 (de) Geraet und verfahren zur informationsaufzeichnung.

Legal Events

Date Code Title Description
8364 No opposition during term of opposition