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Method and apparatus for determining and indicating direction and type of sound

  • US 20090052687A1
  • Filed: 08/21/2007
  • Published: 02/26/2009
  • Est. Priority Date: 08/21/2007
  • Status: Active Grant
First Claim
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1. A method of source direction determination a remote sound source, comprising:

  • a. receiving at a plurality of locations sound generated from the remote sound source;

    b. determining time differences of arrival by determining differences in time between the sound received at each pair of the plurality of locations;

    c. associating with each of the time differences of arrival between each pair of the plurality of locations a half-plane from which the sound originated;

    d. determining the source direction by an intersection of the half-planes.

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