Vehicle accessory microphone

  • US 7,447,320 B2
  • Filed: 04/09/2004
  • Issued: 11/04/2008
  • Est. Priority Date: 02/14/2001
  • Status: Active Grant
First Claim
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1. An interior rearview mirror assembly for a vehicle comprising:

  • a mirror housing adapted for attachment to the interior of the vehicle, said mirror housing having a top surface, a bottom surface, a back surface extending between said top and bottom surfaces and generally facing the front of the vehicle, and an opening generally facing the rear of the vehicle;

    a mirror disposed in said opening of said mirror housing;

    a first microphone transducer carried by said mirror housing along said back surface;

    a first microphone housing mounted on said back surface such that said first microphone transducer is mounted within said first microphone housing; and

    wherein said first microphone housing includes at least one first port covered by a windscreen having an acoustic resistivity of at least 1 acoustic Ω

    /cm2 that is acoustically coupled to a front surface of said first microphone transducer.

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