ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,437,754, issued on Oct. 7, was assigned to Amazon Technologies Inc. (Seattle).
"Multiple wakeword detection" was invented by Gengshen Fu (Sharon, Mass.), Huitian Lei (Medford, Mass.), Sai Kiran Venkata Subramanya Rupanagudi (Burien, Wash.), Yuriy Mishchenko (Lexington, Mass.) and Cody Jacques (Somerville, Mass.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A device is configured to detect multiple different wakewords. A device may operate a joint encoder that operates on audio data to determine encoded audio data. The device may operate multiple different decoders which process the encoded audio data to determine if a wakeword is detected. Each decoder ...