Invention Grant
- Patent Title: Method and noise suppression circuit incorporating a plurality of noise suppression techniques
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Application No.: US11842305Application Date: 2007-08-21
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Publication No.: US09966085B2Publication Date: 2018-05-08
- Inventor: Jianming J. Song , Joel A. Clark
- Applicant: Jianming J. Song , Joel A. Clark
- Applicant Address: US CA Mountain View
- Assignee: GOOGLE TECHNOLOGY HOLDINGS LLC
- Current Assignee: GOOGLE TECHNOLOGY HOLDINGS LLC
- Current Assignee Address: US CA Mountain View
- Agency: Morris & Kamlay LLP
- Main IPC: H04B15/00
- IPC: H04B15/00 ; G10L15/20 ; H04M1/00 ; G10L21/0208 ; G10L25/78 ; G10L21/02 ; G10L19/02 ; G10L21/00 ; G10L15/14 ; G10L21/0232 ; G10L19/00

Abstract:
A noise suppression circuit for use in an audio signal processing circuit is provided. The noise suppression circuit includes a plurality of different types of noise activity detectors, which are each adapted for detecting the presence of a different type of noise in a received signal. The noise suppression circuit further includes a plurality of different types of noise reduction circuits, which are each adapted for removing a different type of detected noise, where each noise reduction circuit respectively corresponds to one of the plurality of noise activity detectors. The respective noise reduction circuit is then selectively activated to condition the received signal to reduce the amount of the detected types of noise, when each one of the plurality of noise activity detectors detects the presence of a corresponding type of noise in the received signal.
Public/Granted literature
- US20080159560A1 Method and Noise Suppression Circuit Incorporating a Plurality of Noise Suppression Techniques Public/Granted day:2008-07-03
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