ALEXANDRIA, Va., March 19 -- United States Patent no. 12,256,121, issued on March 18, was assigned to The Nielsen Co. (US) LLC (New York).

"Systems, apparatus, and methods to improve watermark detection in acoustic environments" was invented by Wendell D. Lynch (East Lansing, Mich.), Christen V. Nielsen (Dunedin, Fla.), Alexander Topchy (New Port Richey, Fla.), Khaldun Karazoun (Tampa, Fla.) and Jeremey M. Davis (New Port Richey, Fla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An example apparatus includes at least one processor circuitry to execute or instantiate instructions to identify a media file is scheduled to be accessed by a media device within a first time period after a publishing of the media...