WO2008032269A3 - Unstructured multilayer optical discs and recording method - Google Patents

Unstructured multilayer optical discs and recording method Download PDF

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Publication number
WO2008032269A3
WO2008032269A3 PCT/IB2007/053666 IB2007053666W WO2008032269A3 WO 2008032269 A3 WO2008032269 A3 WO 2008032269A3 IB 2007053666 W IB2007053666 W IB 2007053666W WO 2008032269 A3 WO2008032269 A3 WO 2008032269A3
Authority
WO
WIPO (PCT)
Prior art keywords
unstructured
optical discs
multilayer optical
recording method
recording
Prior art date
Application number
PCT/IB2007/053666
Other languages
French (fr)
Other versions
WO2008032269A2 (en
Inventor
Jacobus Maria Anton Eerenbeemd
Original Assignee
Koninkl Philips Electronics Nv
Jacobus Maria Anton Eerenbeemd
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, Jacobus Maria Anton Eerenbeemd filed Critical Koninkl Philips Electronics Nv
Publication of WO2008032269A2 publication Critical patent/WO2008032269A2/en
Publication of WO2008032269A3 publication Critical patent/WO2008032269A3/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
    • G11B7/08—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
    • G11B7/0901—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 for track following only
    • G11B7/0903—Multi-beam tracking systems
    • 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
    • G11B7/2403—Layers; Shape, structure or physical properties thereof
    • G11B7/24035—Recording layers
    • G11B7/24038—Multiple laminated recording layers
    • 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
    • G11B7/2403—Layers; Shape, structure or physical properties thereof
    • G11B7/24047—Substrates

Abstract

A record carrier (2) is disclosed comprising a disc substrate (sb) having one or more recording layers (LO, Ll, L2, L3) on at least one side of the record carrier (2), wherein the one or more recording layers (L0,L2,L2,L3) are unstructured for recording data. A method of recording data on the unstructured recording layer is described. The technique is useful for multilayer optical discs.
PCT/IB2007/053666 2006-09-13 2007-09-12 Unstructured multilayer optical discs and recording method WO2008032269A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06120548.0 2006-09-13
EP06120548 2006-09-13

Publications (2)

Publication Number Publication Date
WO2008032269A2 WO2008032269A2 (en) 2008-03-20
WO2008032269A3 true WO2008032269A3 (en) 2008-06-12

Family

ID=38895946

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/053666 WO2008032269A2 (en) 2006-09-13 2007-09-12 Unstructured multilayer optical discs and recording method

Country Status (2)

Country Link
TW (1) TW200834557A (en)
WO (1) WO2008032269A2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986005621A1 (en) * 1985-03-14 1986-09-25 Minnesota Mining And Manufacturing Company Two-sided optical recording medium
US5095478A (en) * 1989-10-23 1992-03-10 Brother Kogyo Kabushiki Kaisha Optical data storage medium having interference and flattening layers each having specific thickness for improved information reading and tracking reliability
EP1324326A1 (en) * 2001-12-18 2003-07-02 Matsushita Electric Industrial Co., Ltd. Information recording medium and method for producing the same
US20040180266A1 (en) * 2003-03-12 2004-09-16 Kabushiki Kaisha Toshiba Optical recording medium and method of manufacturing optical recording medium
US20060077878A1 (en) * 2004-09-29 2006-04-13 Tsukasa Nakai Phase-change optical recording media and optical recording-reproducing apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986005621A1 (en) * 1985-03-14 1986-09-25 Minnesota Mining And Manufacturing Company Two-sided optical recording medium
US5095478A (en) * 1989-10-23 1992-03-10 Brother Kogyo Kabushiki Kaisha Optical data storage medium having interference and flattening layers each having specific thickness for improved information reading and tracking reliability
EP1324326A1 (en) * 2001-12-18 2003-07-02 Matsushita Electric Industrial Co., Ltd. Information recording medium and method for producing the same
US20040180266A1 (en) * 2003-03-12 2004-09-16 Kabushiki Kaisha Toshiba Optical recording medium and method of manufacturing optical recording medium
US20060077878A1 (en) * 2004-09-29 2006-04-13 Tsukasa Nakai Phase-change optical recording media and optical recording-reproducing apparatus

Also Published As

Publication number Publication date
TW200834557A (en) 2008-08-16
WO2008032269A2 (en) 2008-03-20

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