发明名称 |
ENCLOSURE TAMPER DETECTION AND PROTECTION |
摘要 |
<p>A tamper detecting enclosure arrangement for enclosures containing an interior space in which a protected item is positioned having a magnetoresistive sensing memory storage cell positioned in or near the protected item in the enclosure having a two state offset magnetoresistance versus externally applied magnetic field. A magnet is positioned at a selected separation distance from the magnetoresistive sensing memory storage cell to thereby provide a magnetic field about the magnetoresistive sensing memory storage cell if said enclosure has not been opened in such a manner as to result in substantially increasing said separation distance.</p> |
申请公布号 |
EP2016593(A2) |
申请公布日期 |
2009.01.21 |
申请号 |
EP20070755879 |
申请日期 |
2007.04.20 |
申请人 |
NVE CORPORATION |
发明人 |
DAUGHTON, JAMES, W.;DEAK, JAMES, G. |
分类号 |
G08B13/08;G01R33/00;G08B21/00 |
主分类号 |
G08B13/08 |
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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