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Selective shaping of communication signals

  • US 8,275,147 B2
  • Filed: 05/05/2005
  • Issued: 09/25/2012
  • Est. Priority Date: 05/05/2004
  • Status: Active Grant
First Claim
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1. A method of angular discrimination between signals, the method comprising:

  • sampling a plurality of signals with at least three non-coliinear microphones spatially separated from each other;

    determining respective transform signals representative of each sampled signal;

    if a phase difference between the transform signals within a transform kernel bin is greater than a phase difference threshold, modifying a first transform signal by altering the kernel bin; and

    inverse transforming the modified transform signal.

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