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Method and apparatus for differentiating touch screen users based on touch event analysis

  • US 9,329,715 B2
  • Filed: 09/11/2014
  • Issued: 05/03/2016
  • Est. Priority Date: 09/11/2014
  • Status: Active Grant
First Claim
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1. An apparatus for differentiating touch screen users based on characterization of features derived from the touch event acoustics and mechanical impact, the apparatus comprising:

  • a touch sensitive surface for detecting a touch event from at least one user;

    at least one sensor generating a vibro-acoustic waveform signal from such touch event;

    a converter for converting the waveform signal into at least a domain signal;

    a feature extractor for extracting distinguishing features from said domain signal; and

    a classification unit which uses the distinguishing features of said extractor to associate the features of the domain signal with a particular user.

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