Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yi He0
Bo Pi0
Date of Patent
May 16, 2017
0Patent Application Number
144840990
Date Filed
September 11, 2014
0Patent Citations Received
Patent Primary Examiner
Patent abstract
Methods, systems, and devices are disclosed for optical sensing and tracking of eye movement. In one aspect, a method for tracking the movement of an eye includes emitting light toward an eye of a user using multiple light sources substantially equally spaced from a photodetector module of a device, receiving at the photodetector module at least a partial retroreflection of the light emitted by each of the multiple light sources retroreflected from the eye, and determining a positional parameter of the eye based on differential values of the at least partial retroreflections corresponding to the multiple light sources.
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