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Directional microphone assembly for mounting behind a surface

  • US 7,110,553 B1
  • Filed: 02/03/1998
  • Issued: 09/19/2006
  • Est. Priority Date: 02/03/1998
  • Status: Expired due to Fees
First Claim
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1. A microphone assembly comprising:

  • at least two microphones, each of said at least two microphones receiving sound energy and generating electrical signals corresponding to the sound energy received;

    signal processing circuitry, said signal processing circuitry processing the electrical signals into an assembly output signal;

    said at least two microphones and said signal processing circuitry being configured to limit adverse effects on the assembly output signal from amplitude and phase mismatches between the at least two microphones; and

    a case for housing said at least two microphones and said signal processing circuitry, wherein said case is mounted on a mounting side of an acoustical barrier, the acoustical barrier comprising an interior surface of a passenger vehicle.

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