Invention Grant
- Patent Title: Motor noise reduction circuit
- Patent Title (中): 电机降噪电路
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Application No.: US13316902Application Date: 2011-12-12
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Publication No.: US08971548B2Publication Date: 2015-03-03
- Inventor: Kamran Rahbar , Dean Morgan
- Applicant: Kamran Rahbar , Dean Morgan
- Applicant Address: CA Kanata, ON
- Assignee: Microsemi Semiconductor ULC
- Current Assignee: Microsemi Semiconductor ULC
- Current Assignee Address: CA Kanata, ON
- Agency: Marks & Clerk
- Main IPC: H04B15/00
- IPC: H04B15/00 ; G03B31/00 ; H04R3/00 ; G10L21/0264 ; G10L21/0224 ; G10L21/0216

Abstract:
A method of reducing noise in an environment where the noise source is in a fixed location relative to a pair of microphones, such as in a camera with a zoom motor, involves receiving signals x1(t), x2(t) from the respective microphones, and filtering each of the signals x1(t), x2(t) with respective first and second linear filters having filter coefficients obtained by computing eigenfilters corresponding to data samples from the respective microphones for noise only and signal only conditions.
Public/Granted literature
- US20120154610A1 MOTOR NOISE REDUCTION CIRCUIT Public/Granted day:2012-06-21
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