发明名称 |
TOKEN HAVING A PREDETERMINED OPTICAL CHARACTERISTIC, AND A TOKEN VALIDATION DEVICE FOR USE THEREWITH |
摘要 |
of the Invention: A token having predetermined optical characteristics can be tested by a token validation device that subjects the token to optical testing to determine the presence or absence of the predetermined optical characteristics. A single token can include a plurality of different predetermined optical characteristics to increase its coding content. |
申请公布号 |
CA1313806(C) |
申请公布日期 |
1993.02.23 |
申请号 |
CA19890613886 |
申请日期 |
1989.09.28 |
申请人 |
JUDS, SCOTT |
发明人 |
JUDS, SCOTT;HALSEY, JOHNNY H.;HALSEY, JAMES H. |
分类号 |
G07D5/00;G06K7/14;G06K19/06;G07F1/06;G07F7/08 |
主分类号 |
G07D5/00 |
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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