DE60221333D1 - Treibereinheit einer Lichtquelle und optische Speichervorrichtung - Google Patents

Treibereinheit einer Lichtquelle und optische Speichervorrichtung

Info

Publication number
DE60221333D1
DE60221333D1 DE60221333T DE60221333T DE60221333D1 DE 60221333 D1 DE60221333 D1 DE 60221333D1 DE 60221333 T DE60221333 T DE 60221333T DE 60221333 T DE60221333 T DE 60221333T DE 60221333 D1 DE60221333 D1 DE 60221333D1
Authority
DE
Germany
Prior art keywords
light source
storage device
optical storage
driver unit
driver
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
DE60221333T
Other languages
English (en)
Other versions
DE60221333T2 (de
Inventor
Masui Naruhiro
Ema Hidetoshi
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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
Priority claimed from JP2001323544A external-priority patent/JP3875533B2/ja
Priority claimed from JP2001323582A external-priority patent/JP4187958B2/ja
Priority claimed from JP2001334257A external-priority patent/JP3839300B2/ja
Priority claimed from JP2001334303A external-priority patent/JP3839301B2/ja
Priority claimed from JP2001334282A external-priority patent/JP4145519B2/ja
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Application granted granted Critical
Publication of DE60221333D1 publication Critical patent/DE60221333D1/de
Publication of DE60221333T2 publication Critical patent/DE60221333T2/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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/006—Overwriting
    • G11B7/0062—Overwriting strategies, e.g. recording pulse sequences with erasing level used for phase-change media
    • 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
    • G11B11/1053—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 to compensate for the magnetic domain drift or time shift
DE60221333T 2001-10-22 2002-10-18 Treibereinheit einer Lichtquelle und optische Speichervorrichtung Expired - Lifetime DE60221333T2 (de)

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
JP2001323544A JP3875533B2 (ja) 2001-10-22 2001-10-22 光源駆動装置
JP2001323582 2001-10-22
JP2001323582A JP4187958B2 (ja) 2001-10-22 2001-10-22 光源駆動装置とその光源駆動装置を備えた光情報記録再生装置
JP2001323544 2001-10-22
JP2001334257 2001-10-31
JP2001334257A JP3839300B2 (ja) 2001-10-31 2001-10-31 光情報記録装置
JP2001334303A JP3839301B2 (ja) 2001-10-31 2001-10-31 光情報記録装置
JP2001334282 2001-10-31
JP2001334282A JP4145519B2 (ja) 2001-10-31 2001-10-31 光源駆動装置
JP2001334303 2001-10-31
JP2002126941 2002-04-26
JP2002126941 2002-04-26

Publications (2)

Publication Number Publication Date
DE60221333D1 true DE60221333D1 (de) 2007-09-06
DE60221333T2 DE60221333T2 (de) 2008-04-17

Family

ID=27555006

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60221333T Expired - Lifetime DE60221333T2 (de) 2001-10-22 2002-10-18 Treibereinheit einer Lichtquelle und optische Speichervorrichtung

Country Status (4)

Country Link
US (3) US7200091B2 (de)
EP (2) EP1808854B8 (de)
DE (1) DE60221333T2 (de)
ES (1) ES2290251T3 (de)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6954415B2 (en) * 2002-07-03 2005-10-11 Ricoh Company, Ltd. Light source drive, optical information recording apparatus, and optical information recording method
US7492682B2 (en) * 2002-07-25 2009-02-17 Yamaha Corporation Optical disk recording apparatus controllable by table of multi-pulse patterns
US7260044B2 (en) 2002-09-06 2007-08-21 Ricoh Company, Ltd. Recording method for a phase-change optical recording medium
JP4145713B2 (ja) * 2003-05-19 2008-09-03 株式会社リコー レーザパワー制御装置と情報記録装置と光ディスク装置とレーザ光源駆動電流値決定方法と情報記録方法と光ディスク記録方法
ATE364224T1 (de) * 2003-06-19 2007-06-15 Koninkl Philips Electronics Nv Mittel/verfahren zur erzeugung eines laseransteuersignals
JP4019280B2 (ja) * 2003-10-30 2007-12-12 ソニー株式会社 光ディスク装置
US7366080B2 (en) * 2003-11-14 2008-04-29 Matsushita Electric Industrial Co., Ltd. Laser control unit, laser control circuit, and laser-power adjustment method
JP4188220B2 (ja) * 2003-12-05 2008-11-26 東芝マイクロエレクトロニクス株式会社 レーザ制御装置
KR101030768B1 (ko) * 2004-08-26 2011-04-27 삼성전자주식회사 소비전력이 적고 고주파 동작이 가능한 광범위 지연동기루프 회로 및 이를 구비하는 광학 구동 시스템
US7394747B2 (en) * 2004-11-02 2008-07-01 Mediatek Incorporation Optical storage system having integrated laser driver signal processor
JP4423671B2 (ja) * 2004-12-15 2010-03-03 セイコーエプソン株式会社 露光ヘッドの制御装置、露光ヘッド、画像形成装置
TWI286684B (en) * 2005-01-26 2007-09-11 Via Tech Inc Operating current modifying device and method thereof
US8369199B2 (en) * 2005-02-17 2013-02-05 Mediatek Inc. Methods and systems for tuning at least one write strategy parameter of an optical storage device
US7636377B2 (en) * 2005-03-25 2009-12-22 Lsi Corporation Optical disc recorder laser power control
KR100932253B1 (ko) * 2005-07-26 2009-12-16 가부시키가이샤 어드밴티스트 신호 송신 장치, 신호 수신 장치, 시험 장치, 테스트 모듈,및 반도체 칩
US7961584B2 (en) 2006-01-26 2011-06-14 Tian Holdings, Llc Operating current modifying device and method
JP2007213680A (ja) * 2006-02-08 2007-08-23 Toshiba Corp 自動パワー制御フィルタ回路および光ディスク装置
US8467473B2 (en) * 2006-03-31 2013-06-18 Broadcom Corporation Power control techniques for wireless transmitters
RU2434311C2 (ru) * 2006-06-12 2011-11-20 Панасоник Корпорэйшн Считывающее устройство и способ чтения оптического носителя информации
US7808872B2 (en) * 2006-07-06 2010-10-05 Intersil Americas Inc. Hybrid laser diode drivers that include a state machine
US8159913B2 (en) * 2006-10-17 2012-04-17 Hitachi, Ltd. Optical disc recording apparatus and recording power control method
US8018809B2 (en) * 2007-05-16 2011-09-13 Intersil Americas Inc. Hybrid laser diode drivers
US8730772B1 (en) * 2007-08-10 2014-05-20 Marvell International Ltd. Minimization of VCM-resolution switching induced position error transients
DE102008018602B4 (de) * 2008-04-11 2010-11-25 Atmel Automotive Gmbh Lasertreiberschaltung und Verwendung
CN102113049B (zh) * 2008-10-06 2012-11-21 三菱电机株式会社 信号接收装置及信号传输系统
US8174953B2 (en) * 2009-06-11 2012-05-08 Texas Instruments Incorporated Input current channel device
US8437232B2 (en) * 2009-06-11 2013-05-07 Texas Instruments Incorporated High frequency modulator
US8787415B1 (en) * 2010-06-11 2014-07-22 Ixys Corporation Bias current control of laser diode instrument to reduce power consumption of the instrument
JP5393821B2 (ja) * 2012-02-27 2014-01-22 京セラドキュメントソリューションズ株式会社 画像形成装置
JP6477242B2 (ja) * 2015-05-22 2019-03-06 セイコーエプソン株式会社 液体吐出装置
US9742411B1 (en) * 2015-08-24 2017-08-22 University Of South Florida Simultaneous economic dispatch and frequency regulation of power systems
FR3122308B1 (fr) * 2021-04-27 2023-04-21 Speedinnov Dispositif de contrôle d’un dispositif d’éclairage, système d’éclairage et procédé de contrôle associés

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03283021A (ja) 1990-03-30 1991-12-13 Hitachi Ltd 光ディスクの記録方法
JPH05128572A (ja) 1991-11-07 1993-05-25 Nikon Corp レーザ駆動装置
US5438581A (en) * 1994-08-16 1995-08-01 Eastman Kodak Company Laser driver ASIC chip
JPH08147697A (ja) 1994-11-15 1996-06-07 Olympus Optical Co Ltd 半導体レーザ駆動回路
JPH08167160A (ja) 1994-12-08 1996-06-25 Matsushita Electric Ind Co Ltd 光ディスク装置
JP3171103B2 (ja) 1995-03-31 2001-05-28 三菱化学株式会社 光記録方法および光記録媒体
DE19612823C2 (de) * 1995-03-31 2001-03-01 Mitsubishi Chem Corp Optisches Aufzeichnungsverfahren
KR0183759B1 (ko) * 1995-11-24 1999-05-01 김광호 영상복호화기에 있어서 고속재생시 화면떨림 방지장치
EP0957475B1 (de) * 1996-12-20 2009-03-04 Panasonic Corporation Optisches aufzeichnungsverfahren und optisches aufzeichnungsgerät
JPH11213429A (ja) * 1998-01-30 1999-08-06 Sony Corp 相変化型光ディスクの記録装置及び記録方法
JP3528612B2 (ja) 1998-02-02 2004-05-17 株式会社日立製作所 光ディスク装置
JP4252175B2 (ja) * 1998-10-28 2009-04-08 パナソニック株式会社 光ディスクに対する情報記録装置
US6636993B1 (en) 1999-02-12 2003-10-21 Fujitsu Limited System and method for automatic deskew across a high speed, parallel interconnection
JP3409739B2 (ja) 1999-05-25 2003-05-26 日本電気株式会社 自動スキュー調整装置
JP3839213B2 (ja) * 2000-02-08 2006-11-01 株式会社リコー 相変化型光記録媒体の記録方法および記録再生装置
US7012870B2 (en) * 2001-03-30 2006-03-14 Tdk Corporation Optical recording method, optical recording medium and optical irradiating time controlling device
JP2002344293A (ja) 2001-05-11 2002-11-29 Matsushita Electric Ind Co Ltd 波形生成装置、及び波形生成方法

Also Published As

Publication number Publication date
DE60221333T2 (de) 2008-04-17
EP1808854A3 (de) 2007-07-25
US20070030784A1 (en) 2007-02-08
EP1808854B1 (de) 2012-04-11
EP1808854B8 (de) 2012-06-27
US7573790B2 (en) 2009-08-11
US7518969B2 (en) 2009-04-14
EP1808854A2 (de) 2007-07-18
ES2290251T3 (es) 2008-02-16
EP1304686A2 (de) 2003-04-23
US7200091B2 (en) 2007-04-03
US20070030785A1 (en) 2007-02-08
US20030112732A1 (en) 2003-06-19
EP1304686B1 (de) 2007-07-25
EP1304686A3 (de) 2005-03-02

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Legal Events

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