Touch detecting method, touch detecting system and touch sensing device

Touch detecting method, touch detecting system and touch sensing device

  • CN 101,727,235 A
  • Filed: 12/01/2009
  • Published: 06/09/2010
  • Est. Priority Date: 12/01/2009
  • Status: Active Application
First Claim
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1. a touch detecting method is characterized in that, said method comprising the steps of:

  • The controlling and driving signal generating unit is to the touch sensor output drive signal, and after controlling one or more induced signals of digitized sampling unit sampling, described induced signal is carried out analog-to-digital conversion process by described digitized sampling unit by the touch sensor feedback with analog-digital conversion function;

    The digitized sampling value that obtains after the analog-to-digital conversion process is stored, and the described digitized sampling value after the storage is carried out numerical integration handle, when integral number of times reaches default integral number of times, Integral Processing integrated value that obtains and the reference value that prestores are carried out difference handle, obtain detected value;

    According to the difference of described detected value and preset reference threshold value, judge that the touch on the described touch sensor detects information, and the output testing result.

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