US Patent Issued to GRACENOTE on Aug. 12 for "Methods and apparatus to fingerprint an audio signal via normalization" (California Inventors)

ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,387,733, issued on Aug. 12, was assigned to GRACENOTE INC. (New York).

"Methods and apparatus to fingerprint an audio signal via normalization" was invented by Robert Coover (Orinda, Calif.) and Zafar Rafii (Berkeley, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods, apparatus, systems, and articles of manufacture are disclosed to fingerprint audio via mean normalization. An example apparatus for audio fingerprinting includes a frequency range separator to transform an audio signal into a frequency domain, the transformed audio signal including a plurality of time-frequency bins including a first time-frequency bin, an audio characteristic ...