DE69120671T2 - Verfahren zur wiedergabe von signalen in optischem aufzeichnungsmedium - Google Patents

Verfahren zur wiedergabe von signalen in optischem aufzeichnungsmedium

Info

Publication number
DE69120671T2
DE69120671T2 DE69120671T DE69120671T DE69120671T2 DE 69120671 T2 DE69120671 T2 DE 69120671T2 DE 69120671 T DE69120671 T DE 69120671T DE 69120671 T DE69120671 T DE 69120671T DE 69120671 T2 DE69120671 T2 DE 69120671T2
Authority
DE
Germany
Prior art keywords
recording medium
optical recording
replaying
signals
replaying signals
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 - Fee Related
Application number
DE69120671T
Other languages
English (en)
Other versions
DE69120671D1 (de
Inventor
Atsushi Fukumoto
Toshiki Udagawa
Shunji Yoshimura
Masumi Ono
Kouichi Yasuda
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.)
Sony Corp
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 DE69120671D1 publication Critical patent/DE69120671D1/de
Publication of DE69120671T2 publication Critical patent/DE69120671T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • G11B11/10502—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 characterised by the transducing operation to be executed
    • G11B11/10515—Reproducing
    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/005—Reproducing
DE69120671T 1991-02-13 1991-10-19 Verfahren zur wiedergabe von signalen in optischem aufzeichnungsmedium Expired - Fee Related DE69120671T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4113991 1991-02-13
PCT/JP1991/001439 WO1992015093A1 (en) 1991-02-13 1991-10-19 Method for reproducing signal in optically recording medium

Publications (2)

Publication Number Publication Date
DE69120671D1 DE69120671D1 (de) 1996-08-08
DE69120671T2 true DE69120671T2 (de) 1997-02-27

Family

ID=12600101

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69120671T Expired - Fee Related DE69120671T2 (de) 1991-02-13 1991-10-19 Verfahren zur wiedergabe von signalen in optischem aufzeichnungsmedium

Country Status (5)

Country Link
US (1) US5335213A (de)
EP (1) EP0524315B1 (de)
JP (1) JP3057518B2 (de)
DE (1) DE69120671T2 (de)
WO (1) WO1992015093A1 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5729511A (en) 1991-02-15 1998-03-17 Discovision Associates Optical disc system having servo motor and servo error detection assembly operated relative to monitored quad sum signal
US6236625B1 (en) 1991-02-15 2001-05-22 Discovision Associates Optical disc system having current monitoring circuit with controller for laser driver and method for operating same
US5677899A (en) 1991-02-15 1997-10-14 Discovision Associates Method for moving carriage assembly from initial position to target position relative to storage medium
JP2546477B2 (ja) * 1992-12-21 1996-10-23 日本電気株式会社 光磁気記録媒体とその記録再生方法及び記録再生装置
US5495464A (en) * 1993-01-20 1996-02-27 Olympus Optical Co., Ltd. Optical data recording/reproducing apparatus
JPH06259799A (ja) * 1993-03-04 1994-09-16 Nikon Corp 光ディスクの再生方法及び再生装置
CA2128964C (en) * 1993-07-29 1998-11-10 Yoichi Osato Magnetooptical recording medium and recording/reproduction method for medium
DE69428178T2 (de) * 1993-11-17 2002-07-04 Canon Kk Optisches Informationsaufzeichnungs-/wiedergabegerät und -verfahren mit einer Funktion zur Einstellung der Wiedergabeleistung
US6434087B1 (en) 1995-01-25 2002-08-13 Discovision Associates Optical disc system and method for controlling bias coil and light source to process information on a storage medium
US5726954A (en) * 1995-04-10 1998-03-10 Nikon Corporation Optical recording method and apparatus
EP0740296A3 (de) * 1995-04-26 1998-02-25 Sanyo Electric Co. Ltd Magnetooptische Aufzeichnungsmedium
JPH1186328A (ja) * 1997-09-12 1999-03-30 Asahi Optical Co Ltd 光学式情報記録再生装置
US6278667B1 (en) * 1998-01-30 2001-08-21 Seagate Technology, Inc. System and method for light power control in a magneto-optical drive
JP3778399B2 (ja) * 1998-03-16 2006-05-24 富士通株式会社 光学的記憶装置及び光記憶媒体の記録再生方法
KR100366644B1 (ko) * 1998-12-30 2003-02-20 삼성전자 주식회사 지역별시작위치정보를저장하는기록매체와이정보를이용한데이터관리방법
US6658588B1 (en) * 1998-12-30 2003-12-02 Samsung Electronics Co., Ltd. Recording medium for storing start position information for each zone and method and apparatus of managing data using the information
JP2001056939A (ja) 1999-08-19 2001-02-27 Sony Corp 情報再生装置及び方法
AU2003201510A1 (en) * 2002-02-25 2003-09-09 Koninklijke Philips Electronics N.V. Controlling the temperature of a laser diode in a disk drive
US7663087B2 (en) * 2007-02-27 2010-02-16 Intersil Americas Inc. Dynamically configurable multiple wavelength photodetector array for optical storage applications
US8357889B2 (en) 2010-01-21 2013-01-22 Intersil Americas Inc. Circuits, systems and methods for vertical and horizontal light beam alignment

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6159605A (ja) * 1984-08-31 1986-03-27 Canon Inc 情報記録再生装置
JPH0693302B2 (ja) * 1986-10-17 1994-11-16 株式会社日立製作所 光磁気記録再生装置
JPS63187439A (ja) * 1987-01-30 1988-08-03 Hitachi Ltd 光磁気記録方式
US5208792A (en) * 1987-05-29 1993-05-04 Matsushita Electric Industrial Co., Ltd. Recording and reproducing apparatus using opto-magneto media
JP2805746B2 (ja) * 1987-11-30 1998-09-30 ソニー株式会社 光磁気記録媒体の信号再生方法
JP2762445B2 (ja) * 1987-11-30 1998-06-04 ソニー株式会社 光磁気記録媒体の信号再生方法
JP2846342B2 (ja) * 1989-06-07 1999-01-13 株式会社日立製作所 高密度光再生装置
JP2576643B2 (ja) * 1989-11-14 1997-01-29 三菱電機株式会社 光磁気記録装置
JP2910250B2 (ja) * 1990-12-27 1999-06-23 ソニー株式会社 光磁気記録媒体
JPH04255947A (ja) * 1991-02-08 1992-09-10 Sony Corp 光磁気記録方法と光磁気記録再生装置
JPH04255936A (ja) * 1991-02-08 1992-09-10 Sony Corp 高密度光磁気記録媒体の製造方法

Also Published As

Publication number Publication date
EP0524315B1 (de) 1996-07-03
EP0524315A1 (de) 1993-01-27
EP0524315A4 (en) 1993-03-03
DE69120671D1 (de) 1996-08-08
US5335213A (en) 1994-08-02
WO1992015093A1 (en) 1992-09-03
JP3057518B2 (ja) 2000-06-26

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee