ALEXANDRIA, Va., July 15 -- United States Patent no. 12,663,959, issued on June 23, was assigned to Sonos Inc. (Goleta, Calif.).

"Playlist generation based on a desired mental state" was invented by Phoebe K. Piercy (Cambridge, Mass.) and Nicholas D'Amato (Santa Barbara, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "In some embodiments, a method comprises receiving a first signal indicative of a current emotional state of a user, receiving a second signal corresponding to a desired emotional state of the user, and based on the first and second signals, generating a playlist of media content including a first item and an nth item. The first signal can be received from a wearable sensor. Generating the...