ALEXANDRIA, Va., June 4 -- United States Patent no. 12,320,887, issued on June 3, was assigned to Plato Systems Inc. (San Carlos, Calif.).

"Spatial sensor system with background scene subtraction" was invented by Mohammad Amin Arbabian (San Francisco), Alex Gilbert (Los Gatos, Calif.), Hao Nan (San Mateo, Calif.) and Mashhour Solh (San Jose, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system is provided that learns a radar scene's background and that filters radar tracks determined to be in the radar scene background; The system including processing circuitry configured with executable instructions to accesses radar tracks that include radar measurements; to use the measurements to determine a pe...