On its surface, the idea behind Soli is similar to Leap Motion and other gesture-based controllers: A sensor tracks the movements of your hands, which control the input into a device. During a demo at the session Friday, Soli's founder, Ivan Poupyrev, showed how the sensor could recognize gestures and allow people to control functions of a smartwatch without touching a display.
But unlike other motion controllers, which depend on cameras, Soli is equipped with radar, which helps it "track sub-millimeter motions at high speed and accuracy," ATAP says. This helps keep Soli tiny — small enough to fit within a tiny chip that can be incorporated into wearables and other devices.
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