Invention Grant
- Patent Title: Vehicular microphone assembly using fractional power phase normalization
- Patent Title (中): 车载麦克风组合使用分数电相位归一化
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Application No.: US12274749Application Date: 2008-11-20
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Publication No.: US08081772B2Publication Date: 2011-12-20
- Inventor: Robert R. Turnbull , Alan R. Watson , Michael A. Bryson
- Applicant: Robert R. Turnbull , Alan R. Watson , Michael A. Bryson
- 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: H04B1/00
- IPC: H04B1/00 ; G10L21/02
Abstract:
A triangular microphone assembly (101) for use in a vehicle accessory includes a mirror housing (106) adapted for attachment to the interior of the vehicle. A mirror is disposed in an opening of the mirror housing (106) and a plurality of virtual digital microphones (108a, 108b, 108c) are arranged in a substantially triangular configuration in the mirror housing (106). A digital signal processor (DSP) (537) is used for receiving signals from the plurality of digital microphones (108a, 108b, 108c) such that the digital microphones exhibit directional characteristics for reducing undesirable noise in at least one direction by normalizing the phase of the received signals as a function of signal frequency.
Public/Granted literature
- US20100124339A1 VEHICULAR MICROPHONE ASSEMBLY USING FRACTIONAL POWER PHASE NORMALIZATION Public/Granted day:2010-05-20
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