发明名称 |
Apparatus and method for marker verification |
摘要 |
An apparatus and method are provided for product verification wherein a verification marker attached to the product produces a signal identified by a disguised scanning code and matched to a visible code indicia on the product. The signal from the marker is in response to a known applied interrogation field generated by a scanning unit. The scanning unit is portable and includes a detector for the response signal. An EPROM processes the response signal and generates the scanning code. The programming is such that the code is random and different for each manufacturer/product and corresponds to the visible code indicia. The marker includes an amorphous metal ribbon having a known magnetomechanical vibration characteristic.
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申请公布号 |
US4686515(A) |
申请公布日期 |
1987.08.11 |
申请号 |
US19850727305 |
申请日期 |
1985.04.25 |
申请人 |
ALLIED CORPORATION |
发明人 |
ANDERSON, PHILIP M.;UJAZDOWSKI, RICHARD C.;URBANSKI, JEFFREY C. |
分类号 |
G06K7/08;G06K19/067;(IPC1-7):G08B13/14;G07D7/00 |
主分类号 |
G06K7/08 |
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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