ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,456,470, issued on Oct. 28, was assigned to B & W Group Ltd (Worthing, Great Britain).
"Content playback system" was invented by Joe Littlejohn (Bristol, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention provides a content playback system comprising a plurality of playback devices, each of which is configured to detect a voice command from a user and to play content. The system is configured to store an account conversation state associated with an account shared by the plurality of playback devices, and a device conversation state that is associated with a first playback device of the plurality of playback devices. When a voice...