发明名称 |
Optical microphone/sensor |
摘要 |
The invention provides a smart optical microphone/sensor for sensing distances to a membrane or to a light-reflecting surface, including a source of light for illuminating the membrane or light-reflecting surface; a photodetector for receiving light reflected from the membrane or light-reflecting surface and for producing output signals; adjustable means for supplying power to the source of light, and a pre-amplifier for amplifying the output signals, whereby the sensitivity of the microphone/sensor can be adjusted. <IMAGE> |
申请公布号 |
EP1116937(A1) |
申请公布日期 |
2001.07.18 |
申请号 |
EP20010300121 |
申请日期 |
2001.01.08 |
申请人 |
PHONE-OR LIMITED |
发明人 |
PARITSKY, ALEXANDER;SMIRNOV, SERGEY |
分类号 |
G01B11/00;G01C3/06;G01D5/30;G01S17/10;H04R23/00 |
主分类号 |
G01B11/00 |
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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