ALEXANDRIA, Va., July 28 -- United States Patent no. 12,695,990, issued on July 28, was assigned to SONY INTERACTIVE ENTERTAINMENT INC. (Tokyo).

"Eye tracking validation using robot eye system" was invented by Koichi Obana (San Mateo, Calif.), Yuichiro Nakamura (San Mateo, Calif.), Andrew Young (San Mateo, Calif.) and Frank Zhao (San Mateo, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A robot eye and two different eye tracking systems may be used in tandem to determine the accuracy of eye tracking software that is used as part of one of the eye tracking systems. If inaccurate, the eye tracking software may then be adjusted in response. In various example embodiments, a camera may be used in one of t...