By Rachel Metz, Technology Review
A 3-D gesture-recognition chip could make it a lot easier to use smart watches and head-mounted computers. Shown on a penny are the ultrasound chip and the electronics chip that make up Chirp, a 3-D gesture-recognition system that uses ultrasonic sound waves to identify motions, as well as a battery that can run the system for 30 hours. If just thinking about using a tiny touch screen on a smart watch has your fingers cramping up, researchers at the University of California at Berkeley and Davis may soon offer some relief: they’re developing a tiny chip that uses ultrasound waves to detect a slew of gestures in three dimensions. The chip could be implanted in wearable gadgets.
http://www.technologyreview.com/news/520841/a-gestural-interface-for-smart-watches/
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