VIDEO - Touche: a new way of looking at touch input

Smartphones and tablet computers screens sense interaction by measuring changing capacitance. When your fingers touch the transparent conductor on the surface of your screen, the capacitance of the screen changes and the input signal can be measured. Previously, devices have measured a single frequency response to detect capacitance changes, but new technology from the Disney Research Lab at Carnegie Melon University detects a wide variety of touch signals from various frequencies, allowing devices to get a lot more information from a single touch.