ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,560,304, issued on Feb. 24, was assigned to DRNC HOLDINGS INC. (Wilmington, Del.).

"Digital lampshade system and method" was invented by James Robarts (Redmond, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A light source is provided with a digitally addressable lampshade that includes a plurality of regions of controllable opacity. Systems and methods are described for controlling the digital lampshade. In an exemplary embodiment, an addressable lampshade effects a time-varying pattern of changes to the opacity of the regions to generate a lamp identification pattern. A lamp is identified from the patterns by a camera-equipped mobile device. The...