Patent ID: 9569016
Date: 2017-02-14
CPC Classifications: G06F

Claim:
1. A method comprising: initiating an acquisition of a first signal from an electrode of a touch sensor according to an acquisition frequency of the touch sensor, wherein the first signal is driven at least in part by one or more objects within proximity of the touch sensor; reversing, with a controller, a polarity of the first signal to produce a second signal; storing a first modulated signal at an end of the acquisition of the first signal, wherein the first modulated signal comprises the second signal as modulated by one or more third-party signals during the acquisition of the first signal; initiating an acquisition of a third signal from the electrode of the touch sensor, wherein: storing a second modulated signal at an end of the acquisition of the third signal, wherein the second modulated signal comprises the third signal as modulated by the one or more third-party signals during the acquisition of the third signal; and subtracting the first modulated signal from the second modulated signal to: