AU1286801A - Method and device for initialising digital optical discs - Google Patents

Method and device for initialising digital optical discs

Info

Publication number
AU1286801A
AU1286801A AU12868/01A AU1286801A AU1286801A AU 1286801 A AU1286801 A AU 1286801A AU 12868/01 A AU12868/01 A AU 12868/01A AU 1286801 A AU1286801 A AU 1286801A AU 1286801 A AU1286801 A AU 1286801A
Authority
AU
Australia
Prior art keywords
hot spot
optical discs
digital optical
initialising
state
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
AU12868/01A
Inventor
Bohdan Antouard
Daniel Bec
Laurence Bouet
Stephane Le Brun
Jean-Pierre Le Merer
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.)
Innopsys SA
Original Assignee
Innopsys SA
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 Innopsys SA filed Critical Innopsys SA
Publication of AU1286801A publication Critical patent/AU1286801A/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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Optical Head (AREA)

Abstract

The invention concerns rewritable digital optical discs (2) comprising a layer sensitive to two stable states and such that when locally heated by projection of a hot spot reversibly passes from one state to the other. The local heating is provided by a device having high luminous intensity. The hot spot has great field depth and great width, the dimensions of the hot spot corresponding to an optical luminous density for enabling the passage of the sensitive layer from one state to the other. The hot spot passes on the disc (2) sensitive layer at high speed.
AU12868/01A 1999-11-04 2000-11-03 Method and device for initialising digital optical discs Abandoned AU1286801A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9913775 1999-11-04
FR9913775A FR2800902B1 (en) 1999-11-04 1999-11-04 METHOD AND DEVICE FOR INITIALIZING DIGITAL OPTICAL DISCS
PCT/FR2000/003063 WO2001033564A1 (en) 1999-11-04 2000-11-03 Method and device for initialising digital optical discs

Publications (1)

Publication Number Publication Date
AU1286801A true AU1286801A (en) 2001-05-14

Family

ID=9551688

Family Applications (1)

Application Number Title Priority Date Filing Date
AU12868/01A Abandoned AU1286801A (en) 1999-11-04 2000-11-03 Method and device for initialising digital optical discs

Country Status (8)

Country Link
EP (1) EP1226581B1 (en)
JP (1) JP2003523591A (en)
AT (1) ATE259534T1 (en)
AU (1) AU1286801A (en)
DE (1) DE60008280D1 (en)
FR (1) FR2800902B1 (en)
TW (1) TW579508B (en)
WO (1) WO2001033564A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6120236A (en) * 1984-07-09 1986-01-29 Hitachi Ltd Initializing system of reversible optical disk
JPH03216816A (en) * 1990-01-22 1991-09-24 Fuji Electric Co Ltd Initializing method for optical recording medium
JPH04113519A (en) * 1990-08-31 1992-04-15 Toray Ind Inc Method for initializing optical recording medium
US5875160A (en) * 1996-12-14 1999-02-23 Ricoh Company, Ltd. Method and device for initializing optical recording medium of phase change type, and optical recording medium

Also Published As

Publication number Publication date
FR2800902A1 (en) 2001-05-11
TW579508B (en) 2004-03-11
ATE259534T1 (en) 2004-02-15
EP1226581B1 (en) 2004-02-11
JP2003523591A (en) 2003-08-05
WO2001033564A1 (en) 2001-05-10
FR2800902B1 (en) 2003-01-24
EP1226581A1 (en) 2002-07-31
DE60008280D1 (en) 2004-03-18

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase
TH Corrigenda

Free format text: IN VOL 15, NO 35, PAGE(S) 7527-7530 UNDER THE HEADING APPLICATIONS LAPSED, REFUSED OR WITHDRAWN PLEASE DELETE ALL REFERENCE TO APPLICATION NO. 59963/00, 77978/00, 10286/01, 10391/01, 10423/01, 11276/01, 11598/01, 11600/01, 11605/01, 11619/01, 11643/01, 12747/01, 12868/01, 12870/01, 12873/01, 12880/01, 12882/01, 12920/01, 12922/01, 12943/01, 12963/01, 13933/01 AND 17215/01

MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase