ALEXANDRIA, Va., June 17 -- United States Patent no. 12,316,921, issued on May 27, was assigned to Roku Inc. (San Jose, Calif.).

"Content classifiers for automatic picture and sound modes" was invented by Paul Nangeroni (San Carlos, Calif.), Erwin Ben Bellers (Fremont, Calif.), Robert Caston Curtis (Los Gatos, Calif.) and Mustafa Ozgen (Palo Alto, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein are system, apparatus, article of manufacture, method and/or computer program product embodiments, and/or combinations and sub-combinations thereof, for modifying one or more parameters of a data streaming payload to add optimized display and/or audio settings as metadata. An example embodiment ...