ALEXANDRIA, Va., June 16 -- United States Patent no. 12,306,871, issued on May 20, was assigned to Gracenote Inc. (New York).
"Audio identification during performance" was invented by Dale T. Roberts (San Anselmo, Calif.), Bob Coover (Orinda, Calif.), Nicola Marcantonio (San Francisco) and Markus K. Cremer (Orinda, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and apparatus for audio identification during a performance are disclosed herein. An example apparatus includes at least one memory and at least one processor to transform a segment of audio into a log-frequency spectrogram based on a constant Q transform using a logarithmic frequency resolution, transform the log-frequency spectrogram ...