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ELECTRONIC STYLUS, CAPACITIVE TOUCHPAD MODULE, AND APPARATUS FOR TOUCH INPUT

  • US 20100170726A1
  • Filed: 01/04/2010
  • Published: 07/08/2010
  • Est. Priority Date: 01/06/2009
  • Status: Active Grant
First Claim
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1. An apparatus for touch input, comprising:

  • a capacitive touchpad module; and

    an electronic stylus for emitting an excitation signal to apply to a trace of the capacitive touchpad module near a touch point when the electronic stylus touches the capacitive touchpad module, so as to change a waveform of a charging/discharging signal in the trace.

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