AU2001247923A1 - Analog recording on phase-change optical disks - Google Patents

Analog recording on phase-change optical disks

Info

Publication number
AU2001247923A1
AU2001247923A1 AU2001247923A AU4792301A AU2001247923A1 AU 2001247923 A1 AU2001247923 A1 AU 2001247923A1 AU 2001247923 A AU2001247923 A AU 2001247923A AU 4792301 A AU4792301 A AU 4792301A AU 2001247923 A1 AU2001247923 A1 AU 2001247923A1
Authority
AU
Australia
Prior art keywords
phase
optical disks
change optical
analog recording
analog
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.)
Abandoned
Application number
AU2001247923A
Inventor
Masud Mansuripur
Naoyasu Miyagawa
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.)
Calimetrics Inc
Original Assignee
Calimetrics Inc
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 Calimetrics Inc filed Critical Calimetrics Inc
Publication of AU2001247923A1 publication Critical patent/AU2001247923A1/en
Abandoned 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
    • G11B7/1267—Power calibration
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/02—Analogue recording or 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
    • G11B7/0045—Recording
    • 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
    • G11B7/00454—Recording involving phase-change effects
    • 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
    • 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
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • 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
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • G11B7/013—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track for discrete information, i.e. where each information unit is stored in a distinct discrete location, e.g. digital information formats within a data block or sector
    • 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24085—Pits
    • G11B7/24088—Pits for storing more than two values, i.e. multi-valued recording for data or prepits
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
AU2001247923A 2000-03-29 2001-03-29 Analog recording on phase-change optical disks Abandoned AU2001247923A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US19305900P 2000-03-29 2000-03-29
US60193059 2000-03-29
US24481900P 2000-10-31 2000-10-31
US60244819 2000-10-31
PCT/US2001/010522 WO2001073768A1 (en) 2000-03-29 2001-03-29 Analog recording on phase-change optical disks

Publications (1)

Publication Number Publication Date
AU2001247923A1 true AU2001247923A1 (en) 2001-10-08

Family

ID=26888641

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001247923A Abandoned AU2001247923A1 (en) 2000-03-29 2001-03-29 Analog recording on phase-change optical disks

Country Status (3)

Country Link
US (1) US7002890B2 (en)
AU (1) AU2001247923A1 (en)
WO (1) WO2001073768A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60321414D1 (en) 2002-02-27 2008-07-17 Ricoh Kk Optical scanning head for different wavelengths
TWI255452B (en) * 2002-03-18 2006-05-21 Ricoh Kk Multi-level information recording apparatus, multi-level information recording method, multi-level information recording medium and multi-level information recording-reproducing apparatus
CN100370261C (en) * 2002-10-18 2008-02-20 勒克罗伊公司 Method and apparatus for determining inter-symbol interference for estimating data dependent jitter
US6819512B2 (en) * 2003-02-18 2004-11-16 Protoscience, Inc. Triple-attribute method of encoding and decoding magnetic data
WO2005038787A1 (en) * 2003-10-17 2005-04-28 Ricoh Company, Ltd. Information recording method, information recording device, optical disc, program, and computer-readable recording medium
CN1922680A (en) * 2003-12-22 2007-02-28 皇家飞利浦电子股份有限公司 Data recording write strategy optimisation
US20080285399A1 (en) * 2004-10-20 2008-11-20 Yoshiharu Kobayashi Recorder, Player, and Recorder/Player
DE602006021784D1 (en) * 2005-11-28 2011-06-16 Koninkl Philips Electronics Nv DEVICE AND METHOD FOR RECORDING DATA ON A RE-WRITTEN OPTICAL RECORDING CARRIER
US20080031097A1 (en) * 2006-08-04 2008-02-07 Leehter Yao Method and System for Automatically Locating the Optimal Controller Parameters of Optical Drive
US9373349B1 (en) * 2015-05-29 2016-06-21 Seagate Technology Llc Relaxing media design constraints with two-dimensional magnetic recording

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5126990A (en) * 1982-01-12 1992-06-30 Discovision Associates Method of evaluating a storage medium by recirculating a test sample of a signal
GB8309447D0 (en) * 1983-04-07 1983-05-11 Combined Tech Corp Plc Optical data storage
US5153928A (en) * 1989-06-09 1992-10-06 Casio Computer Co., Ltd. Method and apparatus for recording/reproducing mesh pattern data
US5121260A (en) 1989-06-22 1992-06-09 Digital Equipment Corporation Read channel optimization system
US5537381A (en) * 1993-09-02 1996-07-16 Sharp Kabushiki Kaisha Test-writing recording control method and test-writing recording control apparatus and optical recording medium
WO1995015552A1 (en) * 1993-12-01 1995-06-08 Maxtor Corporation Disk drive employing adaptive read/write channel for optimizing head-media-channel performance
US5576906A (en) * 1994-10-11 1996-11-19 Quantum Corporation Synchronous detection of concurrent servo bursts for fine head position in disk drive
JP3046515B2 (en) * 1994-12-16 2000-05-29 シャープ株式会社 Reproducing circuit of optical information recording / reproducing device
US5802112A (en) * 1996-01-16 1998-09-01 Transcendat Inc. Multi-level, multi-frequency interference pattern analog waveform encoding of digital data for transmission
JPH09237421A (en) * 1996-03-01 1997-09-09 Sony Corp Recording and reproducing device and method
JP3731949B2 (en) * 1996-09-17 2006-01-05 インターナショナル・ビジネス・マシーンズ・コーポレーション Read device for recording medium
US6201839B1 (en) * 1997-05-09 2001-03-13 Carnegie Mellon University Method and apparatus for correlation-sensitive adaptive sequence detection
JPH1153701A (en) * 1997-08-05 1999-02-26 Hewlett Packard Japan Ltd Measuring device for recorder

Also Published As

Publication number Publication date
US20010038583A1 (en) 2001-11-08
WO2001073768A1 (en) 2001-10-04
US7002890B2 (en) 2006-02-21

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