ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,526,528, issued on Jan. 13, was assigned to Tobii AB (Danderyd, Sweden).
"Exposure time control" was invented by Erik Linden (Danderyd, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of controlling exposure time is disclosed comprising receiving an image of an eye from an image sensor, the image resulting from the image sensor detecting light during a first exposure time. A pupil intensity is determined as an intensity of a representation of a pupil of the eye in the image and an iris intensity is determined as an intensity of a representation of an iris of the eye in the image. Furthermore, a pupil-iris contrast is determined as a contr...