This technique attracts noise on the input, so a moving window averager is used to lowpass the noise.

FORBES: Makey Makey Hits $568,106 and 11,124 Consumers Said Yes

High performance touch response: Compared to conventional LCDs, IGZO displays have drastically minimized the noise caused during touch input.

ENGADGET: Sharp AQUOS Ultra HD, 1080p HDTVs eyes-on HD