TW200802347A - A method and system for reading/writing an optical disc with a plurality of laser beams - Google Patents

A method and system for reading/writing an optical disc with a plurality of laser beams

Info

Publication number
TW200802347A
TW200802347A TW95124033A TW95124033A TW200802347A TW 200802347 A TW200802347 A TW 200802347A TW 95124033 A TW95124033 A TW 95124033A TW 95124033 A TW95124033 A TW 95124033A TW 200802347 A TW200802347 A TW 200802347A
Authority
TW
Taiwan
Prior art keywords
laser beam
beams
reading
writing
laser
Prior art date
Application number
TW95124033A
Other languages
Chinese (zh)
Inventor
Gongming Wei
Henk Goossens
Original Assignee
Koninkl 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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of TW200802347A publication Critical patent/TW200802347A/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
    • G11B7/14—Heads, e.g. forming of the optical beam spot or modulation of the optical beam specially adapted to record on, or to reproduce from, more than one track simultaneously
    • 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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

A method of reading/writing an optical disc with a plurality of laser beams, wherein the plurality of laser beams comprise a first set of laser beam/beams (a, b), a second set of laser beam//beams (d, e), and a connecting laser beam (c) located between the first set of laser beam/beams and the second set of laser beam/beams, comprises the steps of: - switching on (110) the first set of laser beam//beams and the connecting laser beam to read/write, - switching off (120) the first set of laser beams, if a laser beam of the first set of laser beam/beams arrives at an area previously read/written by the connecting laser beam, - switching on (130) the second set of laser beam /beams to read/write, and - shifting (140) all laser beams to a subsequent reading/writing position, if the connecting laser beam arrives at an area previously read/written by a laser beam of the second set of laser beam /beams.
TW95124033A 2006-06-23 2006-06-30 A method and system for reading/writing an optical disc with a plurality of laser beams TW200802347A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200610093286 2006-06-23

Publications (1)

Publication Number Publication Date
TW200802347A true TW200802347A (en) 2008-01-01

Family

ID=38658500

Family Applications (1)

Application Number Title Priority Date Filing Date
TW95124033A TW200802347A (en) 2006-06-23 2006-06-30 A method and system for reading/writing an optical disc with a plurality of laser beams

Country Status (2)

Country Link
TW (1) TW200802347A (en)
WO (1) WO2007148278A2 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2760882B2 (en) * 1990-05-09 1998-06-04 株式会社日立製作所 Multi-beam optical disk device and recording / reproducing method
JP3476879B2 (en) * 1992-12-09 2003-12-10 パイオニア株式会社 Optical disc information recording apparatus and reproducing apparatus having a plurality of reading or recording beams
KR100224915B1 (en) * 1996-10-29 1999-10-15 윤종용 Track scanning method for optical pickup using multi-beam
TW410335B (en) * 1997-10-14 2000-11-01 Kenwood Corp Method and apparatus of intermittent arrangement multibeam optical disc readout
TW200741675A (en) * 2005-10-20 2007-11-01 Koninkl Philips Electronics Nv A method and system for recording data on an optical disc by a plurality of laser beams
WO2007063456A1 (en) * 2005-11-29 2007-06-07 Koninklijke Philips Electronics N.V. Method and system for reading/writing data by a plurality of spots
CN1979647A (en) * 2005-11-29 2007-06-13 皇家飞利浦电子股份有限公司 System and method for reading/writing data on optical disc using multiple spots

Also Published As

Publication number Publication date
WO2007148278A2 (en) 2007-12-27
WO2007148278A3 (en) 2008-02-21

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