ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,420,825, issued on Sept. 23, was assigned to GM Cruise Holdings LLC (San Francisco).

"Periodically mapping calibration scene for calibrating autonomous vehicle sensors" was invented by Daniel Chou (San Diego), Nigel Rodrigues (Palo Alto, Calif.) and Jordan Michael Croom (San Francisco).

According to the abstract* released by the U.S. Patent & Trademark Office: "A sensor calibration system periodically receives scene data from a detector in a calibration scene. The calibration scene includes calibration targets. The sensor calibration system generates a calibration map based on the scene data. The calibration map is a virtual representation of the calibration scene and includes featu...