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METHOD AND APPARATUS FOR GENERATING DRIVER SIGNALS OF SAW TOUCH PANEL

  • US 20100328271A1
  • Filed: 06/26/2009
  • Published: 12/30/2010
  • Est. Priority Date: 06/26/2009
  • Status: Abandoned Application
First Claim
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1. A method for generating driver signals of SAW touch panel, comprising the steps of:

  • sending a trigger signal continuously by referring to an input signal, wherein the trigger signal is sent when the input signal is within a predetermined range;

    generating a surface acoustic wave according to the trigger signal;

    transmitting the surface acoustic wave to at least one transducer via a touch surface; and

    detecting the input signal via at least one transducer,wherein the input signal is kept on a predetermined level when the surface acoustic wave has not been received by the transducer and when a noise signal from circuits outside the transducer has not been added in the input signal, andwherein the predetermined level is within the predetermined range.

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