ALEXANDRIA, Va., June 25 -- United States Patent no. 12,342,152, issued on June 24, was assigned to Sonos Inc. (Goleta, Calif.).
"Playback device calibration" was invented by Neil Griffiths (Lexington, Mass.) and Mike Chamness (Gloucester, Mass.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A first subwoofer may be configured to output multimedia content in synchrony with at least one other playback device and a second subwoofer. The first subwoofer may, based on a received indication of an acoustic characteristic of the at least one other playback device, determine a crossover frequency of (i) the first subwoofer and the second subwoofer and (ii) the at least one other playback device. After determining th...