Planar binary amplitude diffusor

  • US 5,817,992 A
  • Filed: 03/05/1997
  • Issued: 10/06/1998
  • Est. Priority Date: 03/05/1997
  • Status: Expired due to Term
First Claim
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1. An acoustical device, comprising:

  • a) a generally rectangular body having a length, a width and a depth;

    b) said body having a flat generally rectangular forward facing acoustical surface substantially defined by said length and width;

    c) said acoustical surface having a plurality of discrete reflective regions and a plurality of discrete absorptive regions arranged in a pattern, said regions being arranged in accordance with calculation of a binary sequence having a flat power spectrum.

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