The Bionic Touchscreen

Device Turns Human Arm Into A Touchscreen.

New Scientist (3/2, Marks) reports on Skinput, a system developed by researchers at Carnegie Mellon University and a Microsoft research lab that combines “two technologies: the ability to detect the ultralow-frequency sound produced by tapping the skin with a finger, and the microchip-sized ‘pico’ projectors now found in some cellphones.” The device projects “a keyboard or menu onto the user’s forearm and hand from a projector housed in an armband,” and uses “an acoustic detector, also in the armband,” to determine what part of the arm-display is being indicated based on the “characteristic acoustic patterns” created by tapping on different areas of the forearm.

Reposted from the March 2, 2010 ASEE First Bell

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