TW200741689A - System and method for reading/writing data on optical disc using multiple spots - Google Patents

System and method for reading/writing data on optical disc using multiple spots

Info

Publication number
TW200741689A
TW200741689A TW095114170A TW95114170A TW200741689A TW 200741689 A TW200741689 A TW 200741689A TW 095114170 A TW095114170 A TW 095114170A TW 95114170 A TW95114170 A TW 95114170A TW 200741689 A TW200741689 A TW 200741689A
Authority
TW
Taiwan
Prior art keywords
reading
tracks
writing data
optical disc
light
Prior art date
Application number
TW095114170A
Other languages
Chinese (zh)
Inventor
Henk Goossens
da-yu Chen
Rong Liu
Der Lee Alexander Marc Van
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 TW200741689A publication Critical patent/TW200741689A/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
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • 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
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1362—Mirrors

Landscapes

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

Abstract

The invention relates to a method and system for reading/writing data on CDs by plural light points located along inner tracks to outer tracks, comprising the steps of: successively detecting whether each light point has reached the original read/written data region; if read/write operation is made from inner tracks to outer tracks, moving the light points to the adjacent position to the current outmost light point and if read/write operation is made from outer tracks to inner tracks, moving the light points to the adjacent position to the current inmost light point.
TW095114170A 2005-11-29 2006-04-20 System and method for reading/writing data on optical disc using multiple spots TW200741689A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2005101285930A CN1979647A (en) 2005-11-29 2005-11-29 System and method for reading/writing data on optical disc using multiple spots

Publications (1)

Publication Number Publication Date
TW200741689A true TW200741689A (en) 2007-11-01

Family

ID=37779335

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095114170A TW200741689A (en) 2005-11-29 2006-04-20 System and method for reading/writing data on optical disc using multiple spots

Country Status (7)

Country Link
EP (1) EP1958192A1 (en)
JP (1) JP2009517793A (en)
KR (1) KR20080078020A (en)
CN (2) CN1979647A (en)
BR (1) BRPI0619048A2 (en)
TW (1) TW200741689A (en)
WO (1) WO2007063458A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200802347A (en) * 2006-06-23 2008-01-01 Koninkl Philips Electronics Nv A method and system for reading/writing an optical disc with a plurality of laser beams
FR3006068B1 (en) * 2013-05-24 2015-04-24 Saint Gobain PROCESS FOR OBTAINING A SUBSTRATE

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6061323A (en) * 1996-07-30 2000-05-09 Seagate Technology, Inc. Data storage system having an improved surface micro-machined mirror
KR100224915B1 (en) * 1996-10-29 1999-10-15 윤종용 Track scanning method for optical pickup using multi-beam

Also Published As

Publication number Publication date
CN1979647A (en) 2007-06-13
EP1958192A1 (en) 2008-08-20
WO2007063458A1 (en) 2007-06-07
BRPI0619048A2 (en) 2016-11-29
KR20080078020A (en) 2008-08-26
JP2009517793A (en) 2009-04-30
CN101317223A (en) 2008-12-03

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