ALEXANDRIA, Va., March 19 -- United States Patent no. 12,256,114, issued on March 18, was assigned to Charter Communications Operating LLC (St. Louis).

"Method and apparatus for providing programmatic guaranteed content insertion for supporting delivery using quadrature amplitude modulation and/or other delivery techniques" was invented by Alexander Groysman (Passaic, N.J.) and Marc Forman (Princeton Junction, N.J.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A single piece of content, e.g., a creative, is delivered to multiple devices through a QAM or multicast communications technique, with each receiving device corresponding to an impression opportunity in some cases. Bidders are provided the opportunit...