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METHOD AND APPARATUS FOR UNLOCKING A PORTABLE TERMINAL USING PIEZOELECTRIC SENSORS

  • US 20100090564A1
  • Filed: 09/14/2009
  • Published: 04/15/2010
  • Est. Priority Date: 10/09/2008
  • Status: Active Grant
First Claim
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1. A portable terminal, comprising:

  • at least one piezoelectric sensor positioned on at least one side of the portable terminal and configured to generate a voltage difference when a pressure is applied on the at least one piezoelectric sensor; and

    a controller to cancel a hold state of the portable terminal in response to a squeeze operation signal, the squeeze operation signal being generated in response to the pressure being greater than or equal to a threshold level.

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