发明授权
- 专利标题： Composite type crime preventive sensor
- 专利标题（中）： 复合型犯罪预防传感器
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申请号： US331367申请日： 1989-03-31
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公开(公告)号： US4942384A公开(公告)日： 1990-07-17
- 发明人: Kazumasa Yamauchi , Susumu Katayama
- 申请人： Kazumasa Yamauchi , Susumu Katayama
- 申请人地址： JPX Osaka
- 专利权人： Matsushita Electric Works, Ltd.
- 当前专利权人： Matsushita Electric Works, Ltd.
- 当前专利权人地址： JPX Osaka
- 优先权： JPX63-87644 19880408; JPX63-128652 19880526
- 主分类号： G08B13/16
- IPC分类号： G08B13/16
摘要：
A composite type crime preventive sensor processes output detection signals from a plurality of sensor units of mutually different detection systems for ranking the signals into a plurality of grades depending on signal level, and provides an intruder detection signal when a sum of ranked level values is above a preset reference value, whereby any risk of alarm failing and erroneous alarming can be effectively minimized.
公开/授权文献
- US5684642A Optical transmission system and light radiating method 公开/授权日：1997-11-04
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