US Patent Issued to Sonos on Sept. 15 for "Systems and methods for acoustic echo cancellation for audio playback devices" (California Inventors)

ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,738,290, issued on Sept. 15, was assigned to Sonos Inc. (Goleta, Calif.).

"Systems and methods for acoustic echo cancellation for audio playback devices" was invented by Aaron Jones (Santa Barbara, Calif.) and Saeed Bagheri Sereshki (Goleta, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods for improved acoustic echo cancellation and convergence state detection are disclosed. An adaptive filter of a network microphone device (NMD) can be used to generate a filter output to be applied to microphone input signals for echo cancellation. The filter output can be generated using a reference signal corresponding to source audio conten...