METHOD OF RECOGNIZING TOUCH
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United States of America Patent
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Issued Date -
Mar 5, 2015
app pub date -
Jan 8, 2014
filing date -
Aug 29, 2013
priority date (Note) -
Abandoned
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Abstract
A method for recognizing touch on a touch panel is provided. A value T0 is set. First set of sensing and driving electrode pairs are driven and sensed and second set of sensing and driving electrode pairs are driven simultaneously. A number of first signal values C1 are obtained. C1 is compared with T0. When C1 is smaller than the T0, no touch is recognized. When C1 is greater than or equal to T0, following steps are taken. The first set of sensing and driving electrode pairs are driven and sensed and the second set of sensing and driving electrode pairs are connected to ground simultaneously. A number of second signal values C2 are obtained. C1 is compared with C2. When C2 is smaller than or equal to C1, a grounded object touch is recognized. When C2 is greater than C1, a water touch is recognized.
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