ALEXANDRIA, Va., March 12 -- United States Patent no. 12,248,626, issued on March 11, was assigned to Apple Inc. (Cupertino, Calif.).
"Hybrid gaze tracking system" was invented by Walter Nistico (Redwood City, Calif.) and Patrick R. Gill (Victoria, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "Various implementations disclosed herein include devices, systems, and methods that perform gaze tracking using combinations of ultrasound and imaging data. Some implementations detect a first attribute of an eye using imaging measurements in a first image of the eye, and a first location associated with the first attribute is determined in a 3D coordinate system based on depth information. A second attribute o...