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Method and device for detecting user input

  • US 8,605,053 B2
  • Filed: 02/19/2010
  • Issued: 12/10/2013
  • Est. Priority Date: 12/02/2009
  • Status: Active Grant
First Claim
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1. A method of detecting a force-producing input from a user and providing a user-customizable haptic output, comprising:

  • receiving the input at an input arrangement of a user interface, the input arrangement having at least one piezoelectric sensor;

    generating, at the at least one piezoelectric sensor, an electric signal in response to the input;

    processing the electric signal to determine a presence of the input, the processing including determining at least one of a voltage difference between a current signal sample and a previous signal sample and a rate of voltage change from the previous signal sample to the current signal sample;

    recording a force and a timing interval of the input;

    receiving a user selection of a haptic output to be generated in response to future instances of receiving the same input with a force and timing equivalent to the recorded force and the timing interval of the input; and

    generating, at an output arrangement of the user interface, the haptic output in response to a processing of an electric signal generated in response to receiving the same input with a force and timing equivalent to the recorded force and the timing interval of the input.

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