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CAPACITIVE TOUCH DETECTION SYSTEM AND DETECTION SIGNAL RECEIVING AND WAVEFORM SHAPING MODULE

  • US 20110063246A1
  • Filed: 06/30/2010
  • Published: 03/17/2011
  • Est. Priority Date: 09/14/2009
  • Status: Active Grant
First Claim
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1. A capacitive touch detection system comprising:

  • a capacitive touch panel including a plurality of input terminals and a plurality of output terminals; and

    a detection control circuit including a scanning signal transmitting module and a detection signal receiving and waveform shaping module, the scanning signal transmitting module being electrically coupled to the input terminals for providing a scanning voltage signal to the input terminals, the detection signal receiving and waveform shaping module being electrically coupled to the output terminals for receiving and processing a plurality of detection signals outputted from the respective output terminals to produce a plurality of processed detection signals;

    wherein the detection signal receiving and waveform shaping module comprises a receiver for receiving the detection signals and an impedance-matching network for performing a waveform shaping operation applied to the detection signals thereby producing the plurality of processed detection signals.

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