Invention Grant
- Patent Title: Method and arrangement for driving a microphone
- Patent Title (中): 用于驱动麦克风的方法和装置
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Application No.: US13577105Application Date: 2010-09-13
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Publication No.: US09257944B2Publication Date: 2016-02-09
- Inventor: Sven-Åke Eriksson
- Applicant: Sven-Åke Eriksson
- Applicant Address: SE Siljansnas
- Assignee: Research Electronics Leksand AB
- Current Assignee: Research Electronics Leksand AB
- Current Assignee Address: SE Siljansnas
- Agency: Browdy and Neimark, PLLC
- Priority: SE1050120 20100205
- International Application: PCT/SE2010/050974 WO 20100913
- International Announcement: WO2011/096868 WO 20110811
- Main IPC: H03F99/00
- IPC: H03F99/00 ; H03F3/183 ; H03F3/45
Abstract:
Disclosed is a differential microphone pre-amplifier circuit (120) for providing an amplified differential signal at a first (A) and a second (B) output terminal of the microphone pre-amplifier (120), including a first voltage controlled current generator (101), a second voltage controlled current generator (102) and a third voltage controlled current generator (103) all being configured to receive, amplify and convert a voltage signal generated by an associated microphone (110) to a current signal output.
Public/Granted literature
- US20120308051A1 METHOD AND ARRANGEMENT FOR DRIVING A MICROPHONE Public/Granted day:2012-12-06
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