Invention Grant
- Patent Title: Microphone and method for calibrating a microphone
- Patent Title (中): 麦克风和校准麦克风的方法
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Application No.: US13305572Application Date: 2011-11-28
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Publication No.: US08995690B2Publication Date: 2015-03-31
- Inventor: Dirk Hammerschmidt , Michael Kropfitsch , Andreas Wiesbauer
- Applicant: Dirk Hammerschmidt , Michael Kropfitsch , Andreas Wiesbauer
- Applicant Address: DE Neubiberg
- Assignee: Infineon Technologies AG
- Current Assignee: Infineon Technologies AG
- Current Assignee Address: DE Neubiberg
- Agency: Slater & Matsil, L.L.P.
- Main IPC: H04R3/00
- IPC: H04R3/00 ; H04R3/06 ; H04R19/00 ; H04R29/00
Abstract:
A microphone and a method for calibrating a microphone are disclosed. In one embodiment the method for calibrating a microphone comprises operating a MEMS device based on a first AC bias voltage, measuring a pull-in voltage, calculating a second AC bias voltage or a DC bias voltage, and operating the MEMS device based the second AC bias voltage or the DC bias voltage.
Public/Granted literature
- US20130136267A1 Microphone and Method for Calibrating a Microphone Public/Granted day:2013-05-30
Information query
