ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,212,791, issued on Jan. 28, was assigned to COMCAST CABLE COMMUNICATIONS LLC (Philadelphia).

"Metadata delivery system for rendering supplementary content" was invented by Michael Dalrymple (San Francisco), Zane Vella (San Francisco) and Ken Goudey (San Francisco).

According to the abstract* released by the U.S. Patent & Trademark Office: "A computer system (e.g., such as provided for a network service) operates to determine an inventory of time slots for a given airing. The computer system assigns a supplemental content item to a time slot of the given airing when the given airing is rendered on at least some of a plurality of playback devices. The computer system may structure a ta...