ALEXANDRIA, Va., May 19 -- United States Patent no. 12,634,397, issued on May 19, was assigned to Amazon Technologies Inc. (Seattle).

"Clock skew robust acoustic echo cancellation" was invented by Karim Helwani (Mountain View, Calif.), Erfan Soltanmohammadi (Silver Spring, Md.), Michael Mark Goodwin (Scotts Valley, Calif.) and Arvindh Krishnaswamy (Palo Alto, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Far-end audio samples may be received corresponding to far-end audio that is output from one or more audio output components. Near-end audio samples may be received corresponding to near-end audio that is captured by one or more audio input components. A plurality of acoustic path estimates and a plu...