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PORTABLE ELECTRONIC DEVICE INCLUDING TACTILE TOUCH-SENSITIVE INPUT DEVICE AND METHOD OF PROTECTING SAME

  • US 20120327011A1
  • Filed: 09/11/2012
  • Published: 12/27/2012
  • Est. Priority Date: 06/30/2009
  • Status: Active Grant
First Claim
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1. A portable electronic device comprising:

  • a base;

    a touch-sensitive display spaced from and moveable relative to the base;

    a stopping arrangement to limit movement of the touch-sensitive display in the direction of the base;

    an accelerometer operable to detect a fall;

    an actuating arrangement comprising a piezoelectric actuator disposed between the touch-sensitive display and the base and operable to selectively receive an applied voltage to apply a force to the touch-sensitive display and to receive a reverse voltage, in response to detecting a fall, to cause reverse bending of the piezoelectric actuator to facilitate use of the stopping arrangement to limit movement of the touch-sensitive display.

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