Low power gesture detection

Abstract

Embodiments are disclosed for low power gesture detection using FMCW signals. In some embodiments, a method comprises: emitting, by a frequency modulated continuous wave (FMCW) sensor, an FMCW signal into an environment; receiving, by the FMCW sensor, a reflected FMCW signal from a target in the environment; processing, by the FMCW sensor, the reflected FMCW signal by: generating a time-frequency representation of the reflected FMCW signal; detecting at least one tap gesture from the time-frequency representation; and controlling, with at least one processor, a first operation of a device in response to the detected at least one tap gesture. In some embodiments, the FMCW sensor is further configured to detect a twist gesture from the time-frequency representation and control a second operation of the device in response to the detected twist gesture.

Dependencies are inferred from the claim text.