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Multipoint, virtual control, and force based touch screen applications

DC
  • US 7,973,773 B2
  • Filed: 10/31/2007
  • Issued: 07/05/2011
  • Est. Priority Date: 06/29/1995
  • Status: Expired due to Fees
First Claim
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1. A touch interface comprising:

  • a display screen including a front surface and a rear surface and adapted to display visually observable data;

    a sensor circuit adapted to identify a characteristic of a touch input on the front surface of the display screen; and

    a force element responsive to the sensor circuit and adapted to excite the display screen rear surface by generating a force feedback signal in response to the characteristic of the touch input.

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