Invention Grant
- Patent Title: Microphone assembly with P-type preamplifier input stage
- Patent Title (中): 带P型前置放大器输入级的麦克风组合
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Application No.: US11481632Application Date: 2006-07-06
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Publication No.: US08259963B2Publication Date: 2012-09-04
- Inventor: Lars Jorn Stenberg , Carsten Fallesen
- Applicant: Lars Jorn Stenberg , Carsten Fallesen
- Applicant Address: DK Roskilde
- Assignee: Sonion A/S
- Current Assignee: Sonion A/S
- Current Assignee Address: DK Roskilde
- Agency: Nixon Peabody LLP
- Main IPC: H04R3/00
- IPC: H04R3/00
Abstract:
A microphone assembly is provided that includes a condenser transducer element having a displaceable diaphragm and a back-plate. The displaceable diaphragm and the back-plate are arranged to form a capacitor in combination. A preamplifier circuit has an input stage, the input stage comprising a P-type field effect transistor. The displaceable diaphragm and the back-plate are operatively connected between a source input and a gate input of the P-type field effect transistor.
Public/Granted literature
- US08229138B2 Microphone assembly with P-type preamplifier input stage Public/Granted day:2012-07-24
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