发明名称 |
Anti-theft security sensor assembly has level output circuit which outputs amount of infrared beam received by beam receiving unit, corresponding to physical opening of projector cover of projection unit |
摘要 |
<p>A projection unit (1) includes a generating circuit (8) which transmits a request to a receiving unit (2), to output the level of received infrared beam corresponding to the detection of the physical opening of the projector cover, by a detector switch (7). An output circuit (52) of the receiving unit, outputs the amount of received beam, accordingly.</p> |
申请公布号 |
FR2852718(A1) |
申请公布日期 |
2004.09.24 |
申请号 |
FR20030003296 |
申请日期 |
2003.03.18 |
申请人 |
OPTEX CO LTD |
发明人 |
IWASAWA MASASHI;IKEDA HIROYUKI;HATANO TSUYOSHI;SONE FUMIKATSU |
分类号 |
G08B13/183;(IPC1-7):G08B13/19 |
主分类号 |
G08B13/183 |
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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