×

Reduction of standing waves and intermodulation distortion in electro-acoustic transducer

  • US 5,304,746 A
  • Filed: 11/14/1991
  • Issued: 04/19/1994
  • Est. Priority Date: 06/19/1990
  • Status: Expired due to Term
First Claim
Patent Images

1. In combination with an electro-acoustic transducer having an active surface for radiating or reflecting acoustic energy, said active surface having a discontinuity, the improvement comprising a plurality of features positioned in a pattern on the active surface, each feature comprising a portion of the active surface having a height different than the height of the portions of the active surface surrounding the feature, the features being grouped into pairs, each feature being separated from each adjacent feature by a gap, the width of said gap being approximately one half the width of the adjacent features, and the features in the pattern extending along and adjacent to at least a substantial portion of said discontinuity

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×