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Generating perceptible touch stimulus

  • US 20110079449A1
  • Filed: 10/05/2009
  • Published: 04/07/2011
  • Est. Priority Date: 10/05/2009
  • Status: Active Grant
First Claim
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1. Apparatus comprising:

  • a body portion having a surface comprising a first surface electrode and a second surface electrode, spaced from the first surface electrode, anda controller configured to apply a time varying potential difference between the first surface electrode and the second surface electrode and configured to control at least the time variation in the potential difference.

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