发明名称 |
AUTHENTICITY VALIDATION SUBJECT, AUTHENTICITY VALIDATION CHIP READER, AND AUTHENTICITY JUDGING METHOD |
摘要 |
<p>A structure of a subject such as a card, a bank note, or a stock certificate easily faked and needing authenticity validation and a method for judging the authenticity of the subject. An authenticity validation chip having structural color developers irregularly arranged is attached to a card. An optical sensor detects the arrangement of the structural color developers to individually recognize the card or judge its authenticity. To validate the authenticity, when or after the card is taken in, the information in the authenticity validation chip provided on the card is read.Each of the structural color developers is a transparent resin flake or a transparent resin thin layer. The information is read two-dimensionally with a camera, and the authenticity of the authenticity validation chip is judged by observing the distributed state of the structural color developers. Alternatively, the information can be read linearly. A given straight or curved line can be used by altering the read portion while associating the shape of the read line with the movement of the card in taking in the card.</p> |
申请公布号 |
WO2008143087(A1) |
申请公布日期 |
2008.11.27 |
申请号 |
WO2008JP58849 |
申请日期 |
2008.05.14 |
申请人 |
INTERNATIONAL FRONTIER TECHNOLOGY LABORATORY, INC.;KOMATSU, NOBUAKI;NANJO, SHIN-ICHIRO |
发明人 |
KOMATSU, NOBUAKI;NANJO, SHIN-ICHIRO |
分类号 |
B42D15/10;G06K19/06;G07D7/12;G07D7/20 |
主分类号 |
B42D15/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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