Mirror-based audio system for vehicle

  • US 6,650,233 B2
  • Filed: 06/24/2002
  • Issued: 11/18/2003
  • Est. Priority Date: 08/25/1999
  • Status: Expired due to Term
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First Claim
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1. An interior rearview mirror audio system for a vehicle, said interior rearview mirror audio system comprising:

  • an electrochromic interior rearview mirror assembly comprising an electrochromic reflector element having electronically adjustable reflectivity, said electrochromic interior rearview mirror assembly comprising electronic circuitry for at least adjusting the reflectivity of said electrochromic reflector element, said electronic circuitry connecting to an electrical power source of the vehicle;

    a plurality of microphones for receiving audio signals from within a cabin of the vehicle, said plurality of microphones comprising at least two microphones which generate output signals indicative of sound generated within the vehicle cabin, at least one of said at least two microphones being one of (i) positioned within said electrochromic interior rearview mirror assembly, (ii) positioned adjacent to said electrochromic interior rearview mirror assembly, (iii) positioned in an attachment to said electrochromic interior rearview mirror assembly, and (iv) positioned within a module mounted to the windshield;

    a communication system of the vehicle, said communication system comprising at least one of a cellular telephone system and an emergency communication system, said communication system comprising at least one communication device;

    at least one manually actuated control for receiving a manual input from an occupant of the vehicle and for at least one of activating and adjusting said communication device of said communication system in response to said manual input; and

    a control receiving said output signals of said at least two microphones, said output signals comprising both vocal signals and non-vocal signals, said control at least partially filtering out said non-vocal signals, said non-vocal signals originating from at least one noise source selected from the group consisting of engine noise, road noise, wind noise, HVAC noise, a radio, and a turn signal.

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