Mirror-based audio system for a vehicle

  • US 6,466,136 B2
  • Filed: 07/11/2001
  • Issued: 10/15/2002
  • Est. Priority Date: 08/25/1999
  • Status: Expired due to Term
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First Claim
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1. A mirror-based audio system for a vehicle comprising:

  • an interior rearview mirror system including an interior rearview mirror assembly, said interior rearview mirror assembly including a reflector element;

    said interior rearview mirror system including a plurality of microphones for receiving audio signals 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, said at least two microphones being one of (i) positioned within said interior rearview mirror assembly, (ii) positioned adjacent to said interior rearview mirror assembly, (iii) positioned in an attachment to said interior rearview mirror assembly, and (iv) positioned within a module mounted to a windshield of the vehicle;

    said audio system further comprising a control operable to distinguish the presence of vocal signals versus non-vocal signals and to at least partially filter out said non-vocal signals, said audio system distinguishing said vocal signals received at said at least two microphones from said non-vocal signals by a ratio of at least 2;

    1.

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