发明名称 |
DEVICE AND METHOD FOR DEACTIVATING MAGNETIC SECURITY STRIPS |
摘要 |
Devices and methods are provided for deactivating magnetic security strips. Helmholtz coils (3) are provided in a quantity and orientation such that the security strips can be deactivated without regard to their orientation simply by exposing the strips to three orthogonal, successively weaker, yet sufficiently powerful, magnetic fields.
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申请公布号 |
WO9508177(A1) |
申请公布日期 |
1995.03.23 |
申请号 |
WO1994US10167 |
申请日期 |
1994.09.13 |
申请人 |
KNOGO CORPORATION |
发明人 |
ZHOU, PETER, Y.;PANG, DEXING |
分类号 |
G08B13/24;H01F13/00;(IPC1-7):H01F7/20;H01H47/00;G08B13/14 |
主分类号 |
G08B13/24 |
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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