Invention Grant
US08416964B2 Vehicular automatic gain control (AGC) microphone system and method for post processing optimization of a microphone signal
有权
车载自动增益控制（AGC）麦克风系统和麦克风信号后处理优化方法
- Patent Title: Vehicular automatic gain control (AGC) microphone system and method for post processing optimization of a microphone signal
- Patent Title (中): 车载自动增益控制（AGC）麦克风系统和麦克风信号后处理优化方法
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Application No.: US12570615Application Date: 2009-09-30
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Publication No.: US08416964B2Publication Date: 2013-04-09
- Inventor: Michael A. Bryson , Robert R. Turnbull
- Applicant: Michael A. Bryson , Robert R. Turnbull
- Applicant Address: US MI Zeeland
- Assignee: Gentex Corporation
- Current Assignee: Gentex Corporation
- Current Assignee Address: US MI Zeeland
- Agency: Price Heneveld LLP
- Agent Scott P. Ryan
- Main IPC: H04B15/00
- IPC: H04B15/00
Abstract:
A method for processing signals for reducing noise components in a vehicular microphone system (500A) compares (517) a plurality of noise component values (511, 513, 515) for at least one frequency band of plurality of frequency bands. At least one frequency band is then downwardly expanded (521) by a predetermined expansion ratio (523) for providing a noise reduced signal (535) when determining a value is below a predetermined threshold (519).
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