Invention Grant
- Patent Title: Dual microphone noise reduction for headset application
- Patent Title (中): 双麦克风降噪耳机应用
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Application No.: US11502312Application Date: 2006-08-10
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Publication No.: US07773759B2Publication Date: 2010-08-10
- Inventor: Rogerio G. Alves , Kuan-Chieh Yen
- Applicant: Rogerio G. Alves , Kuan-Chieh Yen
- Applicant Address: GB Cambridge
- Assignee: Cambridge Silicon Radio, Ltd.
- Current Assignee: Cambridge Silicon Radio, Ltd.
- Current Assignee Address: GB Cambridge
- Agency: Brooks Kushman P.C.
- Main IPC: A61F11/06
- IPC: A61F11/06

Abstract:
Improved vocal signals are obtained in headsets and similar devices by including a microphone inside a chamber formed at least in part by the wearer's ear. This second microphone provides a reduced noise input signal. The reduced noise signal is corrected by input from another microphone, located outside the chamber. This correction can include echo cancellation, spectral shaping, frequency extension, and the like.
Public/Granted literature
- US20080037801A1 Dual microphone noise reduction for headset application Public/Granted day:2008-02-14
Information query
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