Wednesday, October 10, 2012

A new capacitive touchscreen technology that recognizes users through their "capacitive fingerprint"

Disney Research labs are developing a new technology designed to recognize users thanks to their "capacitive fingerprint". This new technology measures the impedance of a user to the environment by sweeping across a range of AC frequencies.
Different people have different bone densities and muscle mass, they wear different clothes and footwear, and so on. This, in turn, yields different impedance profiles, which allows attribute touch events and multitouch gestures to a particular user.