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17 条记录 (耗时 0.012 秒)

    System for optically identifying an object
    11.
    发明公开
    System for optically identifying an object 有权
    选择Gegenstand-Identifizierung系统

    公开(公告)号：EP1003126A3

    公开(公告)日：2004-01-07

    申请号：EP99309101.6

    申请日：1999-11-16

    申请人： NHK SPRING CO.LTD.

    发明人： Hoshino, Hidekazu ,  Takeuchi, Itsuo ,  Shibuya, Seiya

    IPC分类号： G06K19/16 ,  G06K19/18 ,  B42D15/10 ,  G06K7/10

    CPC分类号： B42D25/328 ,  B42D25/00 ,  B42D25/364 ,  B42D2033/26 ,  G06K7/12 ,  G06K19/16 ,  G07D7/121

    摘要： The object (X) to be identified is affixed with an identification medium (1) comprising a reflective layer consisting of a reflective hologram or diffraction grating. The high polymer cholesteric liquid crystal provides an inexpensive identification medium, and the use of the second light receiving unit for providing a reference signal provides a high S/N output signal which is highly distinct and resistant to the contamination of the identification medium. Also, the elimination of the need for expensive optical elements such as beam splitters also contributes to the reduction of cost.

    摘要翻译： 要识别的物体（X）附加有包括由反射全息图或衍射光栅组成的反射层的识别介质（1）。 高分子胆固醇液晶提供便宜的识别介质，并且第二光接收单元用于提供参考信号的使用提供高S / N输出信号，其高度不同，并且对识别介质的污染具有抗性。 此外，消除对诸如分束器的昂贵光学元件的需要也有助于降低成本。

    Authenticity identifying system for information storage cards
    17.
    发明公开
    Authenticity identifying system for information storage cards 失效
    EchtheitserkennungseinrichtungfürInformationsspeicherkarten。

    公开(公告)号：EP0533448A2

    公开(公告)日：1993-03-24

    申请号：EP92308411.5

    申请日：1992-09-16

    申请人： NHK SPRING CO.LTD.

    发明人： Hoshino, Hidekazu ,  Haga, Hidemi

    IPC分类号： G06K19/16 ,  G06K19/14

    CPC分类号： G06K19/16 ,  G03H1/30

    摘要： . To prevent unauthorized duplication of an information storage cards such as magnetic cards, IC cards, and optical cards, the card carries an identification region which may be identified by a simple optical sensor. The identification region may consist of holograph, diffraction grating, a multiplicity of parallel grooves and other processed surfaces having certain reflective or transmissive directivities. In particular, the identification region comprises a plurality of segments having two or more different reflective or transmissive directivities, and these segments are uniformly distributed in the identification region so that all of the segments may be accessed simultaneously by the optical sensor which comprises a light emitter and a light receiver including a plurality of parts each capable of individually detecting light reflected by or transmitted through the identification region.

    摘要翻译： 为了防止诸如磁卡，IC卡和光卡之类的信息存储卡的未经授权的复制，该卡携带可由简单光学传感器识别的识别区域。 识别区域可以由全息图，衍射光栅，多个平行凹槽和具有一定反射或透射方向性的其它处理表面组成。 特别地，识别区域包括具有两个或多个不同的反射或透射方向性的多个区段，并且这些区段均匀地分布在识别区域中，使得可以由包括发光体的光学传感器同时访问所有区段 以及光接收器，其包括多个部件，每个部件能够单独地检测由识别区域反射或透过识别区域的光。