ALEXANDRIA, Va., March 19 -- United States Patent no. 12,254,888, issued on March 18, was assigned to GOOGLE LLC (Mountain View, Calif.).
"Multi-factor audio watermarking" was invented by Aleks Kracun (New York) and Matthew Sharifi (Kilchberg, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "Techniques are described herein for multi-factor audio watermarking. A method includes: receiving audio data; processing the audio data to generate predicted output that indicates a probability of one or more hotwords being present in the audio data; determining that the predicted output satisfies a threshold that is indicative of the one or more hotwords being present in the audio data; in response to determin...