| 发明名称 |
Intrusion detection system |
| 摘要 |
An intrusion detection system utilizes a radio frequency radiative system whose near electromagnetic field is monitored by receiving devices which respond, in a measurable way, to any disturbance of the near electromagnetic field by physical intrusion.
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| 申请公布号 |
US4213122(A) |
申请公布日期 |
1980.07.15 |
| 申请号 |
US19780936159 |
申请日期 |
1978.08.23 |
| 申请人 |
U S OF AMERICA AIR FORCE SECRETARY |
发明人 |
FANTE, RONALD L;FRANCHI, PETER R;KARAS, NICHOLAS V;ROTMAN, WALTER |
| 分类号 |
G08B13/24;(IPC1-7):G08B13/18 |
主分类号 |
G08B13/24 |
| 代理机构 |
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