发明名称 |
A TOKEN HAVING A PREDETERMINED OPTICAL CHARACTERISTIC, AND A TOKEN VALIDATION DEVICE FOR USE THEREWITH |
摘要 |
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 |
AU4788290(A) |
申请公布日期 |
1990.07.26 |
申请号 |
AU19900047882 |
申请日期 |
1990.01.11 |
申请人 |
IDX, INC. |
发明人 |
NAME NOT GIVEN |
分类号 |
G07D5/00;G06K7/14;G06K19/06;G07F1/06;G07F7/08 |
主分类号 |
G07D5/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|