Patent ID: 8542202
Filing Date: 2013-09-24
Classification: G06F

Abstract:
1. A method for an electronic device to determine a touch input applied to a capacitive touch panel system of the electronic device, the capacitive touch panel system including a plurality of sensing points, the method comprising: detecting capacitance at each sensing point of the plurality of sensing points to produce a plurality of sensed values; adjusting at least one sensed value of the plurality of sensed values to account for static, spatial-varying noise to produce at least one adjusted value; determining a time-varying noise value corresponding to a time-varying noise based on the at least one adjusted value, the time-varying noise affecting the capacitive touch panel system; adjusting at least one sensed value of the plurality of sensed values based at least on the time-varying noise value to produce at least one noise-adjusted value; and determining the touch input based on the at least one noise-adjusted value.