发明名称 |
Perimeter surveillance system. |
摘要 |
<p>An improved perimeter surveillance system comprising a plurality of intrusion sensors (12) distributed in the field, amplifier apparatus (14) associated with the plurality of intrusion sensors and apparatus (16) for inhibiting an alarm indication output of amplifier apparatus associated with an intrusion sensor in response to simultaneously detected electromagnetic interference detected thereat, without necessarily inhibiting the operation of other amplifier apparatus in the system.</p> |
申请公布号 |
EP0240456(A2) |
申请公布日期 |
1987.10.07 |
申请号 |
EP19870630049 |
申请日期 |
1987.03.30 |
申请人 |
LEV ADVANCED DETECTION SYSTEMS LTD. |
发明人 |
SCHECHTER, MORDECHAI;BARKAY, MOSHE |
分类号 |
G08B13/24 |
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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