ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,541,878, issued on Feb. 3, was assigned to Huawei Technologies'Co.'Ltd.' (Shenzhen, China).

"Methods and systems for gaze tracking and gaze tracking calibration" was invented by Soumil Chugh (Toronto), Juntao Ye (Markham, Canada) and Moshe Eizenman (Toronto).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure allows for accurate and computationally efficient gaze tracking without requiring a corneal reflection. Eye tracking systems and methods are provided. They include obtaining images of the user's face, detecting a head pose, and locating the centre eye rotation, the pupil centre, the optical axis, the cornea centre and finally the vi...