Patent ID: 9092086
Filing Date: 2015-07-28
Classification: G06F

Abstract:
1. A method for obtaining a plurality of values used to generate one or more images of touch from touch sensor circuitry, comprising: selecting one or more first low noise frequencies; simultaneously applying, during a first frame, a plurality of first stimulation signals to a plurality of drive lines of the touch sensor circuitry, wherein the plurality of first stimulation signals include signals having one or more first stimulation frequencies and multiple stimulation phases, wherein the one or more first stimulation frequencies are selected from the one or more first low noise frequencies; receiving, during the first frame, a first sense signal from each of a plurality of sense lines of the touch sensor circuitry into one of a plurality of sense channels, wherein the drive lines are different from the sense lines; and demodulating the first sense signals with a plurality of first demodulation signals, wherein the plurality of first demodulation signals has one or more first demodulation frequencies, wherein the one or more first demodulation frequencies are based on at least one of the one or more first stimulation frequencies, and wherein the plurality of first demodulation signals has multiple demodulation phases that are based on the multiple first stimulation phases.