SG44850A1 - Information storage system - Google Patents

Information storage system

Info

Publication number
SG44850A1
SG44850A1 SG1996008813A SG1996008813A SG44850A1 SG 44850 A1 SG44850 A1 SG 44850A1 SG 1996008813 A SG1996008813 A SG 1996008813A SG 1996008813 A SG1996008813 A SG 1996008813A SG 44850 A1 SG44850 A1 SG 44850A1
Authority
SG
Singapore
Prior art keywords
information storage
storage system
information
storage
Prior art date
Application number
SG1996008813A
Other languages
English (en)
Inventor
Antonius Hendricus Ma Holtslag
James Howard Coombs
Van-Spiekman Wilma Es
Original Assignee
Philips Electronics Nv
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 Philips Electronics Nv filed Critical Philips Electronics Nv
Publication of SG44850A1 publication Critical patent/SG44850A1/en

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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0055—Erasing
    • G11B7/00557—Erasing involving phase-change media
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
SG1996008813A 1992-08-19 1993-08-17 Information storage system SG44850A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92202541 1992-08-19

Publications (1)

Publication Number Publication Date
SG44850A1 true SG44850A1 (en) 1997-12-19

Family

ID=8210866

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1996008813A SG44850A1 (en) 1992-08-19 1993-08-17 Information storage system

Country Status (5)

Country Link
US (2) US5383172A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JP3942645B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CN (2) CN1822116A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SG (1) SG44850A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
TW (1) TW272284B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5712833A (en) * 1993-12-28 1998-01-27 Ogihara; Noriyuki Durable magneto-optical disk having a rare earth-transition amorphous magneto-optical layer
JP3231533B2 (ja) * 1994-01-31 2001-11-26 株式会社日立製作所 光学的情報記録方法
TW347899U (en) * 1994-08-31 1998-12-11 Sony Corp Optical recording/reproducing device
JPH08147695A (ja) * 1994-11-17 1996-06-07 Matsushita Electric Ind Co Ltd 書換型光ディスクのデータ記録方法と記録再生装置
JP3441212B2 (ja) * 1995-01-19 2003-08-25 株式会社リコー パワー制御方式
JPH08203134A (ja) * 1995-01-31 1996-08-09 Sony Corp 光ディスク原盤記録装置
TW414892B (en) * 1996-05-28 2000-12-11 Ibm Optical data storage system with multiple rewriteable phase-change recording layers
JPH10172145A (ja) * 1996-12-13 1998-06-26 Nec Corp 相変化光ディスクの初期化装置
JP4272279B2 (ja) * 1998-09-28 2009-06-03 パナソニック株式会社 光学的情報記録装置、光学的情報記録媒体および光学的情報記録方法
US6449239B1 (en) * 1998-11-25 2002-09-10 Matsushita Electric Industrial Co., Ltd. Optical information recording medium with thermal diffusion layer
DK1206772T3 (da) * 2000-05-09 2009-07-20 Koninkl Philips Electronics Nv Fremgangsmåde og indretning til at optage et informationssignal på et informationslag af et optagelsesmedie
TW544670B (en) * 2000-12-22 2003-08-01 Energy Conversion Devices Inc Method of recording memory
WO2002099797A1 (en) * 2001-06-01 2002-12-12 Koninklijke Philips Electronics N.V. Rewritable optical data storage medium and use of such a medium
EP1814112A1 (en) * 2005-12-23 2007-08-01 Thomson Licensing S.A. Method for recording on an optical recording medium
EP1801791A1 (en) * 2005-12-23 2007-06-27 Deutsche Thomson-Brandt Gmbh Method for recording on an optical recording medium

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0243976B1 (en) * 1986-05-02 1996-09-04 Hitachi, Ltd. Method for recording, reproducing and erasing information and thin film for recording information
US4939717A (en) * 1986-10-31 1990-07-03 Matsushita Electric Industrial Co., Ltd. Method and apparatus for erasing and recording information using three power levels
JP2796290B2 (ja) * 1987-04-10 1998-09-10 株式会社日立製作所 可逆相変化を用いた情報記録方法
JP2696858B2 (ja) * 1987-10-28 1998-01-14 松下電器産業株式会社 光学情報記録再生消去部材
DE3888296T2 (de) * 1987-11-25 1994-08-04 Matsushita Electric Ind Co Ltd Optisches Informationsaufzeichnungs- und -löschverfahren.
EP0337806B1 (en) * 1988-04-14 1994-11-30 Fuji Photo Film Co., Ltd. Method of overwriting information on recording material
US5268254A (en) * 1989-02-28 1993-12-07 Fuji Xerox Co., Ltd. Optical recording medium

Also Published As

Publication number Publication date
CN1822116A (zh) 2006-08-23
US5479392A (en) 1995-12-26
US5383172A (en) 1995-01-17
TW272284B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1996-03-11
JP3942645B2 (ja) 2007-07-11
JPH06168446A (ja) 1994-06-14
CN1083615A (zh) 1994-03-09

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