ID25700A - Unit penggerak piringan - Google Patents

Unit penggerak piringan

Info

Publication number
ID25700A
ID25700A IDP20000351D ID20000351D ID25700A ID 25700 A ID25700 A ID 25700A ID P20000351 D IDP20000351 D ID P20000351D ID 20000351 D ID20000351 D ID 20000351D ID 25700 A ID25700 A ID 25700A
Authority
ID
Indonesia
Prior art keywords
movement unit
plate movement
plate
unit
movement
Prior art date
Application number
IDP20000351D
Other languages
English (en)
Inventor
Masamichi Kondo
Tetsuo Mikami
Norio Nishida
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
Publication of ID25700A publication Critical patent/ID25700A/id

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
    • 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
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/0037—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with discs
    • G11B7/00375—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with discs arrangements for detection of physical defects, e.g. of recording layer
    • 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
    • G11B7/0045—Recording

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
IDP20000351D 1999-04-28 2000-04-27 Unit penggerak piringan ID25700A (id)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11122874A JP2000311373A (ja) 1999-04-28 1999-04-28 ディスクドライブ装置

Publications (1)

Publication Number Publication Date
ID25700A true ID25700A (id) 2000-11-02

Family

ID=14846774

Family Applications (1)

Application Number Title Priority Date Filing Date
IDP20000351D ID25700A (id) 1999-04-28 2000-04-27 Unit penggerak piringan

Country Status (8)

Country Link
US (1) US6654329B1 (id)
EP (1) EP1049081A3 (id)
JP (1) JP2000311373A (id)
KR (1) KR100733530B1 (id)
CN (1) CN1147840C (id)
ID (1) ID25700A (id)
MY (1) MY125383A (id)
TW (1) TW514889B (id)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6950378B1 (en) 1999-07-28 2005-09-27 Matsushita Electric Industrial Co., Ltd. Laser power control method and optical disk device
CN1828743A (zh) * 2001-09-06 2006-09-06 皇家飞利浦电子股份有限公司 运行最优功率控制的设备
US6862088B2 (en) * 2001-12-07 2005-03-01 Zoran Corporation Method and apparatus for providing adaptive control of track servo
US7054240B2 (en) * 2002-03-04 2006-05-30 Zoran Corporation Method and apparatus for providing focus control on a multi layer disc
JP3931774B2 (ja) * 2002-09-20 2007-06-20 松下電器産業株式会社 欠陥検出装置
US7301871B2 (en) * 2004-03-03 2007-11-27 Via Technologies, Inc Method and device for detecting the signal on a disc having a defect by utilizing an RF signal and its derivatives
JPWO2005096276A1 (ja) * 2004-03-31 2008-02-21 パイオニア株式会社 読取装置及びディスク劣化検出方法
JP2007066484A (ja) * 2005-09-02 2007-03-15 Matsushita Electric Ind Co Ltd 光ディスク装置の制御方法および光ディスク装置
KR20080024746A (ko) * 2006-09-14 2008-03-19 삼성전자주식회사 광정보저장매체 재생/기록 장치의 결함 검출 신호의 처리방법
TW200912909A (en) * 2007-05-11 2009-03-16 Koninkl Philips Electronics Nv Method of recording over defects

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2574765B2 (ja) * 1986-07-09 1997-01-22 株式会社日立製作所 光磁気デイスク装置
JPS63188834A (ja) * 1987-01-30 1988-08-04 Sony Corp 光ディスク装置のレ−ザ光量制御回路
JP2926909B2 (ja) 1990-06-26 1999-07-28 ソニー株式会社 デイスクドライブ装置
US5184343A (en) 1991-05-06 1993-02-02 Johann Donald F Compensation for dust on an optical disk by increasing laser writing power
JPH05234082A (ja) * 1992-02-21 1993-09-10 Pioneer Electron Corp 光ディスクプレーヤ
WO1994019800A1 (en) 1993-02-22 1994-09-01 Sony Corporation Optical disc apparatus
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
JPH06309610A (ja) 1993-04-28 1994-11-04 Sony Corp 磁気ヘッド
JPH07272275A (ja) 1994-03-29 1995-10-20 Sony Corp 光ディスク装置
US5568461A (en) * 1994-04-20 1996-10-22 Matsushita Electric Industrial Co., Ltd. Optical information recording and reproducing apparatus
KR970067153A (ko) * 1996-03-13 1997-10-13 김광호 컴팩트 디스크 드라이브 내의 레이저 다이오드 제어 방법
JP3451834B2 (ja) 1996-04-23 2003-09-29 ソニー株式会社 欠陥検出回路及び再生装置
IL126369A (en) 1997-01-29 2002-11-10 Koninkl Philips Electronics Nv Method and system for recording and / or recovering information
US6377528B1 (en) * 1997-03-25 2002-04-23 Sanyo Electric Co., Ltd. Information reproducer, information recorder and reference mark detection circuit
JPH10320809A (ja) * 1997-05-16 1998-12-04 Sony Corp ディスクドライブ装置
KR100285315B1 (ko) * 1997-09-24 2001-04-02 구자홍 광디스크 품질검사 방법 및 장치
JP4036515B2 (ja) * 1997-12-22 2008-01-23 松下電器産業株式会社 光ディスク装置

Also Published As

Publication number Publication date
JP2000311373A (ja) 2000-11-07
EP1049081A2 (en) 2000-11-02
US6654329B1 (en) 2003-11-25
TW514889B (en) 2002-12-21
CN1147840C (zh) 2004-04-28
KR100733530B1 (ko) 2007-06-29
MY125383A (en) 2006-07-31
EP1049081A3 (en) 2003-03-19
KR20000071854A (ko) 2000-11-25
CN1271929A (zh) 2000-11-01

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