[go: up one dir, main page]

DE60328662D1 - Plattenlaufwerk - Google Patents

Plattenlaufwerk

Info

Publication number
DE60328662D1
DE60328662D1 DE60328662T DE60328662T DE60328662D1 DE 60328662 D1 DE60328662 D1 DE 60328662D1 DE 60328662 T DE60328662 T DE 60328662T DE 60328662 T DE60328662 T DE 60328662T DE 60328662 D1 DE60328662 D1 DE 60328662D1
Authority
DE
Germany
Prior art keywords
drive
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
DE60328662T
Other languages
English (en)
Inventor
Shigekazu Minechika
Tadashi Okajima
Takanobu Hisamitsu
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co 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
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Application granted granted Critical
Publication of DE60328662D1 publication Critical patent/DE60328662D1/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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
    • G11B7/1263—Power control during transducing, e.g. by monitoring
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
    • G11B7/1267—Power calibration
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
  • Rotational Drive Of Disk (AREA)
DE60328662T 2002-01-23 2003-01-17 Plattenlaufwerk Expired - Lifetime DE60328662D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002014049A JP4219108B2 (ja) 2002-01-23 2002-01-23 ディスク装置
PCT/JP2003/000383 WO2003063146A1 (fr) 2002-01-23 2003-01-17 Lecteur de disque

Publications (1)

Publication Number Publication Date
DE60328662D1 true DE60328662D1 (de) 2009-09-17

Family

ID=27606084

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60328662T Expired - Lifetime DE60328662D1 (de) 2002-01-23 2003-01-17 Plattenlaufwerk

Country Status (7)

Country Link
US (1) US20050152247A1 (de)
EP (1) EP1477970B1 (de)
JP (1) JP4219108B2 (de)
KR (1) KR100605079B1 (de)
CN (1) CN1308934C (de)
DE (1) DE60328662D1 (de)
WO (1) WO2003063146A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4253725B2 (ja) * 2003-10-31 2009-04-15 独立行政法人産業技術総合研究所 データ再生方法およびデータ記録再生装置
JP4253724B2 (ja) * 2003-10-31 2009-04-15 独立行政法人産業技術総合研究所 レーザビームの再生パワーの決定方法およびデータ記録再生装置
US7724619B2 (en) * 2005-12-06 2010-05-25 Mediatek Inc. Power adjusting method for pickup head accessing optical disc and optical disc information reproduction device thereof
CA2652519A1 (en) * 2006-06-12 2007-12-21 Panasonic Corporation Reading device and reading method for an optical data recording medium
KR101240993B1 (ko) 2006-07-04 2013-03-08 코닌클리케 필립스 일렉트로닉스 엔.브이. 다양한 판독속도로 광 기록매체에서 정보를 검색하는 방법 및 장치
US8339911B2 (en) 2006-07-04 2012-12-25 Koninklijke Philips Electronics N.V. Method and device for retrieving information from an optical record carrier at various reading speeds
JP2009087437A (ja) * 2007-09-28 2009-04-23 Toshiba Corp 記録装置および記録媒体への記録方法
CN104601921A (zh) * 2015-01-15 2015-05-06 上海小蚁科技有限公司 系统配置方法及装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5475666A (en) * 1992-03-04 1995-12-12 Mitsubishi Denki Kabushiki Kaisha Optically modulated overwritable recording device
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
JPH0863750A (ja) * 1994-08-18 1996-03-08 Hitachi Maxell Ltd 光ディスク装置
US5586099A (en) * 1995-05-22 1996-12-17 International Business Machines Corporation Optimized laser read power based upon scan speed of optical medium and erasure characteristics of the medium
JPH1166726A (ja) * 1997-08-21 1999-03-09 Toshiba Corp 光ディスク装置
JPH11120566A (ja) * 1997-10-14 1999-04-30 Nikon Corp 記録再生装置の立ち上げ方法及び記録再生装置
JPH11126340A (ja) * 1997-10-24 1999-05-11 Nikon Corp 再生方法、記録・再生方法、及び再生装置、記録・再生装置
JP2000187842A (ja) * 1998-12-21 2000-07-04 Taiyo Yuden Co Ltd 光情報記録方法及びその装置
JP3647681B2 (ja) * 1999-08-26 2005-05-18 富士通株式会社 情報記憶装置
JP2002015480A (ja) * 2000-06-29 2002-01-18 Sony Corp 光磁気ディスクに対する再生パワーの設定方法、及び情報再生方法
JP2002197664A (ja) * 2000-12-27 2002-07-12 Sharp Corp 光記録媒体再生装置
US7099251B2 (en) * 2001-10-15 2006-08-29 Shinano Kenshi Kabushiki Kaisha Method of controlling laser power and optical disk player
JP3521141B2 (ja) * 2002-01-08 2004-04-19 株式会社リコー 情報記録装置

Also Published As

Publication number Publication date
JP4219108B2 (ja) 2009-02-04
EP1477970A4 (de) 2008-03-12
WO2003063146A1 (fr) 2003-07-31
CN1623189A (zh) 2005-06-01
KR100605079B1 (ko) 2006-07-28
CN1308934C (zh) 2007-04-04
EP1477970A1 (de) 2004-11-17
JP2003217126A (ja) 2003-07-31
US20050152247A1 (en) 2005-07-14
KR20040071780A (ko) 2004-08-12
EP1477970B1 (de) 2009-08-05

Similar Documents

Publication Publication Date Title
DE60331611D1 (de) Antriebseinheit
DE60321937D1 (de) Antriebseinrichtung
DE10294333D2 (de) Antriebsanordnung
DE602004015225D1 (de) Festplattenlaufwerk
DE60332673D1 (de) Hybridantrieb
DE60330736D1 (de) Hybridantrieb
DE60236005D1 (de) Plattenlaufwerk
BR0313834B1 (pt) dispositivo de acionamento
DE50311231D1 (de) Elektromagnetischer antrieb
DE60319578D1 (de) Laufwerk
DE60328662D1 (de) Plattenlaufwerk
DE50104915D1 (de) Getreibe-antriebseinheit
DE602004031616D1 (de) Antriebsgerät
NO20026035L (no) Drivenhet
DE10342330B4 (de) Antriebsanordnung
DE60227483D1 (de) Antriebs-Umschaltvorrichtung
DE60323418D1 (de) Drehantrieb
DE60316880D1 (de) Plattenlaufwerk
DE10297628T8 (de) Treibeschaltung
DE60119996D1 (de) Plattenlaufwerk
SE0202414L (sv) Drivhjul
DE60123675D1 (de) Plattenlaufwerk
DE60123677D1 (de) Plattenlaufwerk
DE10393999D2 (de) Fahreinrichtung
DE50302511D1 (de) Antriebsanordnung

Legal Events

Date Code Title Description
8364 No opposition during term of opposition