ALEXANDRIA, Va., June 9 -- United States Patent no. 12,288,558, issued on April 29, was assigned to Sonos Inc. (Santa Barbara, Calif.).

"Systems and methods of operating media playback systems having multiple voice assistant services" was invented by Ryan Richard Myers (Santa Barbara, Calif.), Luis R. Vega Zayas (Santa Barbara, Calif.) and Sangah Park (Somerville, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods for managing multiple voice assistants are disclosed. Audio input is received via one or more microphones of a playback device. A first activation word is detected in the audio input via the playback device. After detecting the first activation word, the playback device transm...