Patent ID: 9163981
Filing Date: 2015-10-20
Classification: G01J,G01S,G06F

Abstract:
1. A device for detecting a gesture by a target comprising: a plurality of light sensors that each output a sensor signal corresponding to ambient light sensed by the sensors; a processor coupled with the plurality of light sensors, wherein the processor determines a motion of the target based on the ambient light received by the plurality of sensors as the target moves proximate the plurality of light sensors; a light source coupled with the processor that outputs source light; and a detector coupled with the processor, wherein the detector determines an ambient light value based on the ambient light, wherein the processor determines the motion of the target based on the ambient light only when the ambient light value exceeds an ambient light threshold value, and wherein the processor determines the motion of the target based on the ambient light only when a distance value corresponding to the distance from the sensors to the target is within a target distance threshold value.