CONTROL CIRCUIT OF TOUCH SCREEN AND NOISE REMOVING METHOD
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United States of America Patent
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Issued Date -
Nov 14, 2013
app pub date -
Apr 24, 2013
filing date -
Apr 25, 2012
priority date (Note) -
Abandoned
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Abstract
The present invention discloses a control circuit of a touch screen and a noise removing method. The present invention provides a technique for performing differential sensing on two adjacent detection lines of a touch screen panel and integrating a differential sensing signal to filter noise. The control circuit and the noise removing method may remove display noise having an effect on two adjacent detection lines, three-wavelength lamp noise having a predetermined frequency, 60 Hz noise, and charger noise caused by battery charging.
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