US Patent Issued to The Nielsen Company (US) on June 3 for "Use of symbol strength and verified watermark detection as basis to improve media-exposure detection" (New Jersey, Florida Inventors)

ALEXANDRIA, Va., June 4 -- United States Patent no. 12,322,401, issued on June 3, was assigned to The Nielsen Co. (US) LLC (New York).

"Use of symbol strength and verified watermark detection as basis to improve media-exposure detection" was invented by David Gish (Riverdale, N.J.) and Jeremey M. Davis (Oldsmar, Fla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "To extract an identifier value from a watermark in media content, a system initially determines the identifier by determining symbol values based on an evaluation of tone strength of each of multiple symbol time segments of the watermark. Further, the system assigns a quality level to the watermark, based on a count of errors in the determined symbo...