US Patent Issued to AMAZON TECHNOLOGIES on July 15 for "Device control using variable step size of acoustic echo cancellation" (California Inventor)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,361,942, issued on July 15, was assigned to AMAZON TECHNOLOGIES INC. (Seattle).

"Device control using variable step size of acoustic echo cancellation" was invented by Aditya Sharadchandra Joshi (Sunnyvale, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Devices and techniques are generally described for wake word suppression using variable step size of an acoustic echo cancellation (AEC) unit. A reference signal representing an audio stream may be sent to an acoustic echo cancellation (AEC) unit. A microphone may receive an input audio signal and send the input audio signal to the AEC unit. The AEC unit may determine a first set of variable step ...