Add Gesture Control To Everything With This Tiny Chip

An ultrasound innovation may enable 3–D gestures on devices from watches to TV remotes.

Gestural control is something with which we're all familiar, thanks to products like the Wii, Apple's multitouch iPhones and iPads, Microsoft's Kinect, and Leap's Motion. But while gestures can be an extraordinarily efficient control mechanism for many pieces of technology, it's more difficult to implement them on smaller devices simply due to the more limited touch–surface real estate offered by, say, a smartwatch. Ultrasound physics and a minuscule device developed by researchers at University of California at Berkeley and Davis may fix this.

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