ALEXANDRIA, Va., April 2 -- United States Patent no. 12,267,539, issued on April 1, was assigned to The Nielsen Co. (US) LLC (New York).

"Methods and apparatus to generate reference signatures from streaming media" was invented by Adam Schenker (Tampa, Fla.), Nigel Smith (Richardson, Texas), Shailendra Paranjape (Tampa, Fla.) and Vinay Chauhan (Sunnyvale, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Example apparatus disclosed herein are to receive a log file, compare a first media monitor identification associated with an audio signature, a second media monitor identification associated with media metadata, and a third media monitor identification associated with event metadata. Disclosed example a...