ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,462,831, issued on Nov. 4, was assigned to Gracenote Inc. (New York).
"Methods and apparatus to fingerprint an audio signal" was invented by Alexander Topchy (New Port Richey, Fla.), Christen V. Nielsen (Dunedin, Fla.) and Jeremey M. Davis (New Port Richey, Fla.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Methods, apparatus, systems, and articles of manufacture to fingerprint an audio signal. An example apparatus disclosed herein includes an audio segmenter to divide an audio signal into a plurality of audio segments, a bin normalizer to normalize the second audio segment to thereby create a first normalized audio segment, a subfingerprint generator t...