US Patent Issued to Tobii on July 8 for "Method and system for improving perfomance of an eye tracking system" (Swedish Inventors)

ALEXANDRIA, Va., July 9 -- United States Patent no. 12,353,622, issued on July 8, was assigned to Tobii AB (Danderyd, Sweden).

"Method and system for improving perfomance of an eye tracking system" was invented by Rickard Lundahl (Danderyd, Sweden) and Daniel Johansson Torneus (Danderyd, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a system and a method for determining an entrance pupil position of an eye of a user of an eye tracking system. The entrance pupil position is determined using a predetermined entrance pupil displacement model, which at least models the angular dependence of the refractive properties of a cornea of the eye."

The patent was filed on Nov. 2...