ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,439,217, issued on Oct. 7, was assigned to Sonos Inc. (Goleta, Calif.).
"Intelligent amplifier activation" was invented by Jonathon Reilly (Cambridge, Mass.) and Jonathan Lang (Santa Barbara, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments are provided for intelligently activating an amplifier in a playback device based on proximity detection. The playback device may be in a quasi-idle state when the playback device is not rendering media content. The quasi-idle state of the playback device may involve an amplifier in the playback device being inactive, while some other components or modules of the playback devices remain active. The pl...