ALEXANDRIA, Va., July 3 -- United States Patent no. 12,347,173, issued on July 1, was assigned to Tobii AB (Danderyd, Sweden).
"Eye openness" was invented by Clement Morin (Danderyd, Sweden), Joakim Zachrisson (Danderyd, Sweden), Jonas Sjostrand (Danderyd, Sweden), Shanker Keshavdas (Danderyd, Sweden) and Ylva Bjork (Danderyd, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "A controller configured to: receive first and second curve data respectively defining first and second curves respectively representative of first and second eyelid edges in an eye image; determine an eye-openness-indicator-line extending from a first intersection point on the first curve to a second intersection point on the second...