ALEXANDRIA, Va., July 16 -- United States Patent no. 12,672,222, issued on June 30, was assigned to Roku Inc. (San Jose, Calif.).

"Content system with lighting device calibration feature" was invented by Adil Jagmag (Hollis, N.H.), Johan Gerard Willem Maria Janssen (Morgan Hill, Calif.), Sharada Palasamudram Ashok Kumar (Sunnyvale, Calif.), Sunil Ramesh (Cupertino, Calif.), Michael Cutter (Golden, Colo.), Shashank C. Merchant (Sunnyvale, Calif.) and Yu-Cheng Lin (Golden, Colo.).

According to the abstract* released by the U.S. Patent & Trademark Office: "In one aspect, an example method includes causing a content-presentation device to output reference visual content and causing a lighting device to emit light in accordance with a lighting...