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Acoustic Touch Apparatus And Methods Using Touch Sensitive Lamb Waves

  • US 20140267175A1
  • Filed: 04/29/2013
  • Published: 09/18/2014
  • Est. Priority Date: 03/15/2013
  • Status: Active Grant
First Claim
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1. A touch apparatus, comprising:

  • a substrate having a front surface with a touch region and a back surface, the touch apparatus configured to propagate surface acoustic waves on at least a portion of the back surface and near-longitudinal-resonance Lamb waves in at least a portion of the touch region of the substrate.

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