CA2054880A1 - Dispositif d'enregistrement et de lecture d'informations - Google Patents

Dispositif d'enregistrement et de lecture d'informations

Info

Publication number
CA2054880A1
CA2054880A1 CA2054880A CA2054880A CA2054880A1 CA 2054880 A1 CA2054880 A1 CA 2054880A1 CA 2054880 A CA2054880 A CA 2054880A CA 2054880 A CA2054880 A CA 2054880A CA 2054880 A1 CA2054880 A1 CA 2054880A1
Authority
CA
Canada
Prior art keywords
clock
recording
reading
information
generation circuit
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.)
Granted
Application number
CA2054880A
Other languages
English (en)
Other versions
CA2054880C (fr
Inventor
Shigemi Maeda
Kunio Kojima
Jun Akiyama
Shigeo Terashima
Tomiyuki Numata
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.)
Sharp Corp
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26564318&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2054880(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from JP2305486A external-priority patent/JP3032568B2/ja
Priority claimed from JP2402487A external-priority patent/JP2585467B2/ja
Application filed by Individual filed Critical Individual
Publication of CA2054880A1 publication Critical patent/CA2054880A1/fr
Application granted granted Critical
Publication of CA2054880C publication Critical patent/CA2054880C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/14Digital recording or reproducing using self-clocking codes
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00Recording 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
    • G11B11/10Recording 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
    • G11B11/105Recording 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
    • G11B11/10502Recording 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 characterised by the transducing operation to be executed
    • G11B11/10504Recording
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00Recording 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
    • G11B11/10Recording 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
    • G11B11/105Recording 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
    • G11B11/10502Recording 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 characterised by the transducing operation to be executed
    • G11B11/10515Reproducing
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00Recording 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
    • G11B11/10Recording 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
    • G11B11/105Recording 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
    • G11B11/1055Disposition or mounting of transducers relative to record carriers
    • G11B11/10556Disposition 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
    • G11B11/10563Access of indexed parts
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00Driving, 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
    • G11B19/02Control of operating function, e.g. switching from recording to reproducing
    • G11B19/12Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00Driving, 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
    • G11B19/20Driving; Starting; Stopping; Control thereof
    • G11B19/24Arrangements for providing constant relative speed between record carrier and head
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/14Digital recording or reproducing using self-clocking codes
    • G11B20/1403Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00Head arrangements not specific to the method of recording or reproducing
    • G11B21/02Driving or moving of heads
    • G11B21/08Track changing or selecting during transducing operation
    • G11B21/081Access to indexed tracks or parts of continuous track
    • G11B21/083Access to indexed tracks or parts of continuous track on discs
    • G11B21/085Access to indexed tracks or parts of continuous track on discs with track following of accessed part
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/32Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
    • G11B27/327Table of contents
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/004Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/085Disposition 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
    • G11B7/08505Methods for track change, selection or preliminary positioning by moving the head
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B2020/1087Digital recording or reproducing wherein a selection is made among at least two alternative ways of processing
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B2020/1087Digital recording or reproducing wherein a selection is made among at least two alternative ways of processing
    • G11B2020/10888Digital recording or reproducing wherein a selection is made among at least two alternative ways of processing the kind of data being the selection criterion
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00Record carriers by type
    • G11B2220/20Disc-shaped record carriers
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00Record carriers by type
    • G11B2220/20Disc-shaped record carriers
    • G11B2220/25Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2525Magneto-optical [MO] discs

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Optical Recording Or Reproduction (AREA)
CA002054880A 1990-11-09 1991-11-04 Dispositif d'enregistrement et de lecture d'informations Expired - Lifetime CA2054880C (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2305486A JP3032568B2 (ja) 1990-11-09 1990-11-09 情報記録装置
JP2-305486 1990-11-09
JP2402487A JP2585467B2 (ja) 1990-12-14 1990-12-14 再生データ処理装置
JP2-402487 1990-12-14

Publications (2)

Publication Number Publication Date
CA2054880A1 true CA2054880A1 (fr) 1992-05-10
CA2054880C CA2054880C (fr) 1997-07-08

Family

ID=26564318

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002054880A Expired - Lifetime CA2054880C (fr) 1990-11-09 1991-11-04 Dispositif d'enregistrement et de lecture d'informations

Country Status (5)

Country Link
US (1) US5315571A (fr)
EP (1) EP0485234B2 (fr)
KR (1) KR970007665B1 (fr)
CA (1) CA2054880C (fr)
DE (1) DE69129834T3 (fr)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK0465053T3 (da) * 1990-06-29 2002-10-07 Sony Corp Plade registrerings/reproduktionsapparatur
EP0559104B1 (fr) * 1992-02-29 1998-05-20 Sony Corporation Appareil d'enregistrement sur disque optique
US5528574A (en) * 1992-03-09 1996-06-18 Hitachi, Ltd. Disk reproducing apparatus capable of increasing speed of access to disks recorded at constant linear velocity
JP3230319B2 (ja) * 1992-07-09 2001-11-19 ソニー株式会社 音響再生装置
JP2849006B2 (ja) * 1992-10-12 1999-01-20 シャープ株式会社 情報再生装置
JPH06162670A (ja) * 1992-11-26 1994-06-10 Sony Corp ディスク記録再生方式
US5369533A (en) * 1992-12-30 1994-11-29 International Business Machines Corporation Data storage device having different storage densities for differing types of data
JP3427410B2 (ja) * 1993-02-24 2003-07-14 ソニー株式会社 光ディスク記録装置および光ディスク再生装置
US5592446A (en) * 1993-06-14 1997-01-07 Sony Corporation Dual mode recording and reproducing apparatus having two recording regions using differing reproduction principles
JP3059860B2 (ja) * 1993-07-07 2000-07-04 三洋電機株式会社 ディスクプレーヤ
EP0638900B1 (fr) * 1993-08-14 2001-01-31 Kabushiki Kaisha Toshiba Appareil de reproduction et circuit de traitement de signaux pour des données enregistrées sur un disque
JP4005150B2 (ja) * 1994-04-28 2007-11-07 ソニー株式会社 デイスク装置
US5729515A (en) * 1994-05-26 1998-03-17 Kabushiki Kaisha Toshiba Disc data reproducing apparatus and signal processing circuit for reproducing and processing disc data having a plurality of type data
TW272280B (fr) * 1994-08-08 1996-03-11 Hitachi Seisakusyo Kk
US5691967A (en) * 1994-09-20 1997-11-25 Sony Corporation Recording or reproducing apparatus having a spindle servo control runaway prevent feature
JPH10510386A (ja) 1994-12-09 1998-10-06 シーゲート テクノロジー,インコーポレイテッド ディスク・ドライブ・システムにデータを書き込むときの周波数を制御する装置及び方法
US5583841A (en) * 1995-01-17 1996-12-10 Discovision Associates Apparatus for improved search on information storage member rotating at constant linear velocity
JP3591028B2 (ja) * 1995-01-25 2004-11-17 ソニー株式会社 再生装置、再生方法
US5978329A (en) 1995-06-07 1999-11-02 Discovision Associates Technique for closed loop servo operation in optical disc tracking control
DE69618722T2 (de) * 1995-08-09 2002-08-22 Sony Corp., Tokio/Tokyo Aufzeichnungsmedium, Aufzeichnungsgerät und Wiedergabegerät
JP3674092B2 (ja) * 1995-08-09 2005-07-20 ソニー株式会社 再生装置
KR100484396B1 (ko) * 1995-11-02 2005-08-10 소니 가부시끼 가이샤 디스크기록방법,디스크재생장치및디스크형기록매체
KR100316135B1 (ko) 1995-12-06 2002-04-24 데니스 피셸 빔 포커스 제어 장치 및 방법
US5689485A (en) 1996-04-01 1997-11-18 Discovision Associates Tracking control apparatus and method
JPH1064244A (ja) * 1996-08-23 1998-03-06 Sony Corp 記録媒体、再生装置
US5808990A (en) * 1996-12-17 1998-09-15 Cinram, Inc. Method and apparatus for controlling the linear velocity between an optical head and a rotation disk
JP3631586B2 (ja) * 1997-04-05 2005-03-23 株式会社リコー ライトパルス幅補正回路、書き込み信号処理装置、及び光ディスクドライブ
JPH10334616A (ja) * 1997-05-30 1998-12-18 Sony Corp 光ディスク装置およびデータ記録方法
US6046968A (en) * 1997-07-24 2000-04-04 Hewlett-Packard Company Re-writable optical disk having reference clock information permanently formed on the disk
US7701836B2 (en) 2001-11-27 2010-04-20 Hewlett-Packard Development Company, L.P. Re-writable optical disk having reference clock information permanently formed on the disk
JP4078696B2 (ja) * 1997-11-28 2008-04-23 松下電器産業株式会社 記録許可判定装置及び情報記録装置
JPH11195270A (ja) * 1997-12-26 1999-07-21 Toshiba Corp 光ディスク装置
JP3163064B2 (ja) 1998-07-22 2001-05-08 三洋電機株式会社 ディスク記録装置
KR100313831B1 (ko) * 1999-06-29 2001-11-15 구자홍 광 디스크의 데이터 고속 억세스장치 및 억세스방법
JP3877479B2 (ja) * 1999-11-29 2007-02-07 三洋電機株式会社 ディスク記録装置
TW467370U (en) * 1999-12-07 2001-12-01 Via Tech Inc Reference clock generation circuit of the disk data pre-recording region
CN101101777B (zh) 2000-07-07 2011-09-07 皇家飞利浦电子股份有限公司 信息系统、在记录载体上记录信息信号的方法和回放装置
JP2002165148A (ja) * 2000-11-29 2002-06-07 Sony Corp データ処理装置および方法、並びに記録媒体
US7406548B2 (en) * 2004-03-26 2008-07-29 Hewlett-Packard Development Company, L.P. Systems and methods for responding to a data transfer
US20050248663A1 (en) * 2004-05-05 2005-11-10 James Owens Systems and methods for responding to a data transfer
US7355939B2 (en) * 2006-08-11 2008-04-08 Mediatek Inc. System and method for switching control modes of spindle motor
US8879185B1 (en) * 2010-11-03 2014-11-04 Marvell International Ltd. Disk synchronous write architecture for bit-patterned recording

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL187413C (nl) 1978-03-16 1991-09-16 Philips Nv Registratiedragerlichaam, ingeschreven registratiedrager, werkwijze voor het inschrijven van het registratiedragerlichaam en inrichting voor het uitvoeren van de werkwijze en voor het uitlezen van een ingeschreven registratiedrager.
NL8000121A (nl) 1980-01-09 1981-08-03 Philips Nv Schijfvormige, optische uitleesbare registratiedrager als opslagmedium voor datainformatie, inrichting voor het vervaardigen van zo'n registratiedrager, inrichting voor het optekenen van datainformatie in zo'n registratiedrager en inrichting voor het uitlezen van zo'n registratiedrager.
JPS5764371A (en) * 1980-09-30 1982-04-19 Toshiba Corp Rotation control system of disk recording medium
NL8102621A (nl) 1981-05-29 1982-12-16 Philips Nv Inrichting voor het beschrijven en/of uitlezen van een registratiedrager.
DE3348177C2 (fr) * 1982-10-15 1989-07-20 Pioneer Electronic Corp., Tokio/Tokyo, Jp
JPH0828054B2 (ja) * 1983-11-30 1996-03-21 ソニー株式会社 デイスク状記録媒体
WO1985002707A1 (fr) * 1983-12-16 1985-06-20 Sony Corporation Dispositif de reproduction de disques
JPS6171472A (ja) * 1984-09-14 1986-04-12 Pioneer Electronic Corp 記録デイスク演奏装置
EP0228646A3 (en) * 1985-12-20 1987-10-14 Hitachi, Ltd. A signal processing apparatus for disc memory devices
US4819218A (en) 1986-12-19 1989-04-04 Eastman Kodak Company Quasi-constant linear-velocity disk having corresponding radii of adjacent annular zones related by a rational number for distributing prerecorded indicia to form a coherent write clock signal
US4949325A (en) 1987-03-18 1990-08-14 Hitachi, Ltd. Method and associated apparatus and medium for optical recording and reproducing information
US4811317A (en) 1987-06-25 1989-03-07 Eastman Kodak Company Clock resynchronization after a track jump
NL8701632A (nl) * 1987-07-10 1989-02-01 Philips Nv Systeem voor het optekenen en/of uitlezen van een informatiesignaal, een registratiedrager, een opteken en/of uitleesinrichting voor toepassing in een dergelijk systeem, en een inrichting en werkwijze voor het vervaardigen van een dergelijke registratiedrager.
NL8702904A (nl) 1987-12-03 1989-07-03 Philips Nv Werkwijze en inrichting voor het optekenen van informatie op een registratiedrager, alsmede een inrichting voor het lezen van de opgetekende informatie.
CA2022192C (fr) * 1989-08-04 1995-03-21 Shigemi Maeda Dispositif d'enregistrement-lecture a disque optique
US5182741A (en) * 1989-08-25 1993-01-26 Sharp Kabushiki Kaisha Optical disk recording/reproducing device utilizing a constant angular velocity method with a constant linear velocity formatted optical disk

Also Published As

Publication number Publication date
DE69129834T3 (de) 2005-11-17
EP0485234A3 (en) 1993-03-17
DE69129834D1 (de) 1998-08-27
US5315571A (en) 1994-05-24
DE69129834T2 (de) 1999-02-18
EP0485234B2 (fr) 2005-03-02
KR920010553A (ko) 1992-06-26
KR970007665B1 (ko) 1997-05-15
EP0485234A2 (fr) 1992-05-13
EP0485234B1 (fr) 1998-07-22
CA2054880C (fr) 1997-07-08

Similar Documents

Publication Publication Date Title
CA2054880A1 (fr) Dispositif d'enregistrement et de lecture d'informations
EP0382154A3 (fr) Système pour l'enregistrement de disques optiques
AU5226590A (en) Method of and device for recording data signals on a record carrier of an inscribable type, and device for reading such a record carrier
CA2016558A1 (fr) Appareil de lecture de disques optiques
CA2023963A1 (fr) Support d'enregistrement optique et methode d'enregistrement et de lecture d'informations sur ce support
DE69219400D1 (de) Plattengerät
RU92004307A (ru) Дисковое устройство воспроизведения информации
KR930023939A (ko) 디스크 기록 재생 장치
MY111889A (en) Apparatus and method for recording and reproducing a digital video and audio signal.
EP0402180A3 (fr) Dispositif d'enregistrement d'informations
EP0933761A3 (fr) Unité de stockage, support d'enregistrement optique et méthode d'enregistrement d'information
EP0403224A3 (fr) Méthode de lecture d'information enregistrée à partir d'un support d'enregistrement avec pistes
KR910005241A (ko) 기록매체, 신호기록방법 및 신호재생방법
EP0372420A3 (fr) Appareil d'enregistrement et de reproduction magnétique et tête magnétorésistive à cet usage
JP3061678B2 (ja) ディスク記録再生装置
CA2067654A1 (fr) Appareil d'enregistrement et de lecture optiques d'informations
KR940010021A (ko) 자기기록장치 및 재생 장치
EP0396362A3 (fr) Appareil de reproduction avec balayage hélicoidal pour données d'image enregistrées sur une bande magnétique
CA2073804A1 (fr) Appareil d'enregistrement et de lecture optiques d'informations et support d'enregistrement
KR920018660A (ko) 자기기록 재생장치의 재생유닛
KR930014481A (ko) 자기기록 재생 장치
KR910010402A (ko) 자기기록장치
EP0743637A3 (fr) Appareil d'enregistrement et de reproduction magnétique
JPS5641566A (en) Digital signal recording and reproducing system
JPS6462866A (en) Recording disk reproducing device

Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry