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    OPTICAL DISC AUTHENTICATION BY INTERFEROMETRIC FINGERPRINTING
    2.
    发明公开
    OPTICAL DISC AUTHENTICATION BY INTERFEROMETRIC FINGERPRINTING 审中-公开
    AUTHENTIFIZIERUNG EINER OPTISCHEN PLATTE DURCH INTERFERROMETRISCHE FINGERABDRUCKERZEUGUNG

    公开(公告)号：EP3114685A1

    公开(公告)日：2017-01-11

    申请号：EP15713254.9

    申请日：2015-02-23

    申请人： Thomson Licensing

    发明人： HAMERSLEY, Alan, Bruce ,  TOWN, John, Matthew ,  HOFMANN, Holger

    IPC分类号： G11B20/00

    CPC分类号： G11B20/00123 ,  G11B20/00086

    摘要： Authentication of discs occurs by the use of interferometric authentication data. Such authentication data of a data disc is generated based on an interference pattern associated with thickness variations of a material layer on the disc. The interference pattern represents a unique fingerprint that can be used for authentication of individual discs.

    摘要翻译： 通过使用干涉式认证数据来发生光盘认证。 基于与盘上的材料层的厚度变化相关联的干涉图案来生成数据盘的这种认证数据。 干涉图案表示可以用于各个光盘认证的唯一指纹。

    HIGH DENSITY, HYBRID OPTICAL DISC
    5.
    发明公开
    HIGH DENSITY, HYBRID OPTICAL DISC 审中-公开
    HIGH POET混合光盘

    公开(公告)号：EP1842198A1

    公开(公告)日：2007-10-10

    申请号：EP05824741.2

    申请日：2005-10-31

    申请人： Thomson Licensing

    发明人： TOWN, John, Matthew

    IPC分类号： G11B20/12 ,  G11B7/007 ,  G11B7/24

    CPC分类号： G11B20/1262 ,  G11B7/24038 ,  G11B7/266 ,  G11B20/1217

    摘要： The present invention advantageously provides a high density, hybrid optical disc and method of manufacture, thereof. In one embodiment of the present invention, a high-density, hybrid optical disc includes first and second disc portions adhesively bonded to each other, each of the disc portions containing at least one transparent substrate and a data layer, where at least one of the first and second disc portions comprises a high density format. The data layer of the second disc portion of the hybrid optical disk is coated with a high transmissive/ low reflective layer and is situated opposite a transparent assembling adhesive layer joining the first and second disc portions.

    BLU-RAY DISC MADE FROM DISCARDED CD OR DVD DISCS
    9.
    发明公开
    BLU-RAY DISC MADE FROM DISCARDED CD OR DVD DISCS 审中-公开
    OFF废弃CD或DVD媒体做BLU-RAY DISK

    公开(公告)号：EP2191469A1

    公开(公告)日：2010-06-02

    申请号：EP08724940.5

    申请日：2008-01-30

    申请人： Thomson Licensing

    发明人： TOWN, John, Matthew

    IPC分类号： G11B7/26

    CPC分类号： G11B7/26

    摘要： Briefly, in accordance with one embodiment of the present principles, a Blu-ray disc is described. The Blu-ray disc has a structure including a substrate having one of either a Compact Dics data layer and a DVD data layer along with a Blu-ray data layer. The Blu-ray discs of the present invention advantageously use Compact Discs (or DVDs) that are due to be scrapped or recycled as donor substrates for new Blu-ray discs, thereby saving polycarbonate material and eliminating the need to purchase injection molding equipment to manufacture Blu-ray discs.