Invention Application
- Patent Title: Optical microphone portable telephone
- Patent Title (中): 光学麦克风便携式电话
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Application No.: US09882616Application Date: 2001-06-15
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Publication No.: US20020048373A1Publication Date: 2002-04-25
- Inventor: Alexander Paritsky , Alexander Kots , Okihiro Kobayashi , Nobuhiro Miyahara , Yutaka Hattori
- Applicant: Phone-OR Ltd.
- Applicant Address: IL Or-Yehuda
- Assignee: Phone-OR Ltd.
- Current Assignee: Phone-OR Ltd.
- Current Assignee Address: IL Or-Yehuda
- Priority: JP11-294219 19991015
- Main IPC: H04B001/38
- IPC: H04B001/38
Abstract:
An optical microphone element comprising a diaphragm (31) vibrating with sound pressure, a case (40) containing the diaphragm (31) and having first and second openings (38, 39) made in symmetric positions and facing the diaphragm (31), a light source (32) for irradiating the diaphragm (31) with a light beam, and a photodetector (35) for receiving the light beam reflected by the diaphragm (31) and outputting a signal corresponding to vibration of the diaphragm (31).
Information query
