Invention Grant
- Patent Title: Active noise reduction adaptive filter adaptation rate adjusting
- Patent Title (中): 主动降噪自适应滤波器适应率调整
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Application No.: US13479912Application Date: 2012-05-24
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Publication No.: US08571230B2Publication Date: 2013-10-29
- Inventor: Davis Y. Pan , Christopher J. Cheng
- Applicant: Davis Y. Pan , Christopher J. Cheng
- Applicant Address: US MA Framingham
- Assignee: Bose Corporation
- Current Assignee: Bose Corporation
- Current Assignee Address: US MA Framingham
- Agency: Bose Corporation
- Main IPC: H04B15/00
- IPC: H04B15/00

Abstract:
A method for determining leakage factors or adaptation rates, or both, for adaptive filters in an active noise reduction system. The leakage factor or adaptation rate, or both, may vary depending on a parameter of an input reference signal. The parameter may include one or more of reference signal input frequency, rate of change of reference input signal frequency, if a predetermined triggering condition exits, or if a predetermined event has occurred.
Public/Granted literature
- US20120230506A1 ACTIVE NOISE REDUCTION ADAPTIVE FILTER ADAPTATION RATE ADJUSTING Public/Granted day:2012-09-13
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