Patent ID: 9575560
Date: 2017-02-21
CPC Classifications: G01S,G06F

Claim:
1. A radar-based gesture-recognition system comprising: a microwave radio element in a wearable device configured to provide a planar localized radar field adjacent a user appendage on which the wearable device resides, the planar localized radar field corresponding to a planar surface through which a gesture interaction is sensed; an antenna element configured to sense the gesture interaction through the planar localized radar field, the gesture interaction having multiple targets on the planar surface in the planar localized radar field, the gesture interaction passing through the planar localized radar field; and a signal processor configured to process the sensed gesture interaction having the multiple targets in the planar localized radar field sufficient to provide gesture data usable to determine a two-dimensional gesture or a three-dimensional gesture from the sensed gesture interaction having the multiple targets.