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    MULTI-CHANNEL ENCODER
    2.
    发明公开
    MULTI-CHANNEL ENCODER 审中-公开
    MEHRKANAL-CODIERER

    公开(公告)号：EP1735777A1

    公开(公告)日：2006-12-27

    申请号：EP05718571.2

    申请日：2005-03-25

    申请人： Koninklijke Philips Electronics N.V.

    发明人： HOTHO, Gerard, H. ,  BREEBAART, Dirk, J. ,  VERBITSKIY, Evgeny, A. ,  DEN BRINKER, Albertus, C.

    IPC分类号： G10L19/02 ,  H04S1/00 ,  H04S3/00

    CPC分类号： G10L19/02 ,  G10L19/008 ,  G10L19/0204 ,  H04S3/008

    摘要： There is described a method of encoding input signals (CHI to CH3; 400 to 450) in a multi-channel encoder (5; 15) to generate corresponding output data comprising down-mix output signals (610, 620) together with complementary parametric data (600). The method includes a first step of down-mixing input signals (CHI to CH3; 400 to 450) to generate the corresponding down-mix output signals (610, 620), and a second step of processing the input signals (CHI to CH3; 400 to 450) during down-mixing to generate said parametric data (600) complementary to the down-mix output signals (610, 620). Processing of the input signals (CHI to CH3; 400 to 450) involves including information in the down­-mix signals (610, 620) which is useable during subsequent decoding of the down-mix output signals (610, 620) and the parametric data (600) to determine at least some parameter data and thereby enabling representations of the input signals (CHI to CH3; 400 to 450) to be subsequently regenerated. Coders for use in the encoder (5; 15) for performing essential signal processing operations therein are also elucidated.

    摘要翻译： 描述了在多通道编码器（5; 15）中对输入信号（CH1至CH3; 400至450）进行编码的方法，以生成相应的输出数据，包括下混合输出信号（610,620）以及互补参数数据 （600）。 该方法包括将输入信号（CH1至GH3; 400至450）下变频以产生相应的下混合输出信号（610,620）的第一步骤，以及处理输入信号（CH1至CH3; 400至450），以产生与下混合输出信号（610,620）互补的所述参数数据（600）。 输入信号（CH1至CH3; 400至450）的处理涉及将下变频信号（610,620）中的信息包括在下混合输出信号（610,620）的随后解码期间可用的信息和参数数据 （600）以确定至少一些参数数据，从而使得能够随后再生所述输入信号（CH1至CH3; 400至450）的表示。 还阐明了用于在编码器（5; 15）中进行基本信号处理操作的编码器。

    METHOD AND SYSTEM FOR AUTHENTICATION OF A PHYSICAL OBJECT
    3.
    发明公开
    METHOD AND SYSTEM FOR AUTHENTICATION OF A PHYSICAL OBJECT 有权
    用于物理对象的认证的方法和装置

    公开(公告)号：EP1629628A2

    公开(公告)日：2006-03-01

    申请号：EP04744336.1

    申请日：2004-05-13

    申请人： Koninklijke Philips Electronics N.V.

    发明人： TUYLS, Pim, T. ,  DENTENEER, Theodorus, J., J. ,  LINNARTZ, Johan, P., M., G. ,  VERBITSKIY, Evgeny, A.

    IPC分类号： H04L9/32

    CPC分类号： G07C9/00158 ,  G06K9/00885 ,  G07C9/00087 ,  H04L9/3278

    摘要： A system for authenticating a physical object includes an enrolment device, an authentication device, and a storage for storing authentication data. The enrolment device includes an input for receiving a property set Y of the object measured using a measurement procedure. A processor is used for creating a property set I from the measured property set Y that meet a predetermined robustness criterion. It then creating a property setA from the property set I that includes less information on the actual properties than property set Y, and finally generates a control value Vin dependence on properties of the property set A. An output is used for supplying the control value to the storage as part of the authentication data. The enrolment device operates in an analogous way.