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Electrovibration for touch surfaces

  • US 9,501,145 B2
  • Filed: 04/22/2011
  • Issued: 11/22/2016
  • Est. Priority Date: 05/21/2010
  • Status: Active Grant
First Claim
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1. A method for generating a signal, the method comprising:

  • detecting a varying impedance value of a user in contact with a device relative to a ground;

    adjusting the signal based on the varying impedance value; and

    causing the signal to be coupled to the user such that, as the signal is adjusted, the signal is adapted to generate substantially the same tactile sensation in at least one digit that slides on an insulation surface of the device.

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