AU2001287792A1 - Secure optical read data medium - Google Patents

Secure optical read data medium

Info

Publication number
AU2001287792A1
AU2001287792A1 AU2001287792A AU8779201A AU2001287792A1 AU 2001287792 A1 AU2001287792 A1 AU 2001287792A1 AU 2001287792 A AU2001287792 A AU 2001287792A AU 8779201 A AU8779201 A AU 8779201A AU 2001287792 A1 AU2001287792 A1 AU 2001287792A1
Authority
AU
Australia
Prior art keywords
read data
data medium
optical read
secure optical
secure
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
AU2001287792A
Inventor
Jean-Claude Dubois
Maurice Milgram
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.)
DIXET
Original Assignee
DIXET
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
Priority claimed from FR0011230A external-priority patent/FR2813696B1/en
Application filed by DIXET filed Critical DIXET
Publication of AU2001287792A1 publication Critical patent/AU2001287792A1/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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
    • G11B7/245—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing a polymeric component
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/258—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of reflective layers
AU2001287792A 2000-09-04 2001-08-31 Secure optical read data medium Abandoned AU2001287792A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
FR0011230A FR2813696B1 (en) 2000-09-04 2000-09-04 SECURE OPTICAL READ DATA HOLDER
FR0011230 2000-09-04
FR0106004 2001-05-04
FR0106004A FR2813697A1 (en) 2000-09-04 2001-05-04 SECURE OPTICAL READ DATA HOLDER
PCT/FR2001/002711 WO2002021523A1 (en) 2000-09-04 2001-08-31 Secure optical read data medium

Publications (1)

Publication Number Publication Date
AU2001287792A1 true AU2001287792A1 (en) 2002-03-22

Family

ID=26212596

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001287792A Abandoned AU2001287792A1 (en) 2000-09-04 2001-08-31 Secure optical read data medium

Country Status (4)

Country Link
US (1) US20020142248A1 (en)
AU (1) AU2001287792A1 (en)
FR (1) FR2813697A1 (en)
WO (1) WO2002021523A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002082429A2 (en) * 2000-12-14 2002-10-17 Ecd Systems, Inc. Systems and methods for optical media modification
KR100501829B1 (en) * 2001-07-30 2005-07-20 한국화학연구원 Diarylethene derivatives and the photochromic thin film using of them
US7562396B2 (en) * 2001-08-21 2009-07-14 Ecd Systems, Inc. Systems and methods for media authentication
US7716485B2 (en) 2002-02-01 2010-05-11 Sca Ipla Holdings Inc. Systems and methods for media authentication
GB0214989D0 (en) * 2002-06-28 2002-08-07 Qinetiq Ltd Photochromic liquid crystals
AU2003257320A1 (en) * 2002-08-09 2004-02-25 Simon Fraser University Photochromic and electrochromic compounds and methods of synthesizing and using same
CA2609887C (en) * 2005-05-25 2015-12-29 Switch Materials Inc. Photochromic and electrochromic compounds and synthesis and use thereof
US8608988B2 (en) 2010-11-23 2013-12-17 Transitions Optical, Inc. Curable photochromic compositions and optical articles prepared therefrom
JP6208137B2 (en) 2011-09-30 2017-10-04 スイッチ マテリアルズ インコーポレイテッドＳｗｉｔｃｈ Ｍａｔｅｒｉａｌｓ Ｉｎｃ． Diarylethene compounds and their use
WO2017030545A1 (en) 2015-08-17 2017-02-23 Transitions Optical, Inc. Curable photochromic compositions
US10423061B2 (en) 2015-09-03 2019-09-24 Transitions Optical, Inc. Multilayer photochromic articles

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03261947A (en) * 1990-03-13 1991-11-21 Kanebo Ltd Wavelength multiplex recording method
JP2662308B2 (en) * 1990-08-28 1997-10-08 シャープ株式会社 Method for manufacturing optical memory device
JPH04128834A (en) * 1990-09-20 1992-04-30 Toppan Printing Co Ltd Optical recording medium
DE69126407T2 (en) * 1990-11-27 1998-01-15 Sanyo Electric Co Optical recording medium
JP3258423B2 (en) * 1992-04-16 2002-02-18 三洋電機株式会社 Optical recording material, optical recording medium using the same, and recording / reproducing method thereof
JP2676698B2 (en) * 1992-12-02 1997-11-17 鐘紡株式会社 Diarylethene compound and optical recording / reproducing method for optical recording medium using the diarylethene compound
JP2711212B2 (en) * 1992-12-04 1998-02-10 鐘紡株式会社 Diarylethene compound having conjugated double bond chain and optical recording / reproducing method for optical recording medium using this diarylethene compound
FR2768842B1 (en) * 1997-09-19 2000-01-07 Maurice Milgram COPY PROTECTION OF A DIGITAL OPTICAL DISC BY ADDING A ZONE HAVING MODIFIABLE OPTICAL PROPERTIES DURING READING
WO1999061542A1 (en) * 1998-05-28 1999-12-02 Dainippon Ink And Chemicals, Inc. Ultraviolet-curing composition, optical disk, and method of producing optical disk

Also Published As

Publication number Publication date
US20020142248A1 (en) 2002-10-03
FR2813697A1 (en) 2002-03-08
WO2002021523A1 (en) 2002-03-14

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