Multi-object detection method for capacitance type touch panel

Multi-object detection method for capacitance type touch panel

  • CN 100,419,657 C
  • Filed: 06/20/2005
  • Issued: 09/17/2008
  • Est. Priority Date: 06/20/2005
  • Status: Active Grant
First Claim
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1. the multi-object detection method of a capacitive touch control plate comprises:

  • Detect the induction amount of this Trackpad, obtain one first peak value and one second peak value at least;

    AndDuring all greater than a critical value, calculate the variable quantity of this induction amount and preceding once detected induction amount at this first and second peak value;

    Wherein, if this induction amount is kept the trend of increase in a Preset Time, expression has at least two objects to touch this Trackpad.

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