Invention Grant
- Patent Title: Method for driving a condenser microphone
- Patent Title (中): 驱动电容麦克风的方法
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Application No.: US13391892Application Date: 2011-03-04
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Publication No.: US08965008B2Publication Date: 2015-02-24
- Inventor: Martin Nyström
- Applicant: Martin Nyström
- Applicant Address: JP Tokyo SE Lund
- Assignee: Sony Corporation,Sony Mobile Communications AB
- Current Assignee: Sony Corporation,Sony Mobile Communications AB
- Current Assignee Address: JP Tokyo SE Lund
- Agency: Synder, Clark, Lesch & Chung, LLP
- International Application: PCT/EP2011/001083 WO 20110304
- International Announcement: WO2012/119610 WO 20120913
- Main IPC: H04R3/00
- IPC: H04R3/00 ; H04R25/00 ; H04R19/04
Abstract:
A method for driving a condenser microphone is provided. The condenser microphone comprises a membrane and an electrode constituting a capacity. A polarization voltage is applied between the membrane and the electrode. According to the method, an electrical signal generated by the condenser microphone based on a received acoustic signal causing a deflection of the membrane) is detected, and the polarization voltage is varied in response to the detected electrical signal.
Public/Granted literature
- US20120224722A1 METHOD FOR DRIVING A CONDENSER MICROPHONE Public/Granted day:2012-09-06
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