×

APPARATUS AND METHOD FOR SELECTIVELY DRIVING A PIEZO TRANSDUCER

  • US 20100259402A1
  • Filed: 05/27/2010
  • Published: 10/14/2010
  • Est. Priority Date: 11/29/2007
  • Status: Active Grant
First Claim
Patent Images

1. An apparatus for controlling a device having a touch sensor, comprising:

  • a piezo transducer for detecting a pressure pattern applied to the sensor;

    a comparator coupled to the transducer; and

    a pressure pattern recognition circuit coupled to a comparator output of the comparator, the circuit being configured to;

    determine whether the pressure pattern satisfies a predetermined condition; and

    in response to the pressure pattern satisfying the predetermined condition, generate an output signal.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×