ALEXANDRIA, Va., April 21 -- United States Patent no. 12,605,641, issued on April 21, was assigned to KOKOZI Co. LTD (Seoul, South Korea).
"Audio output system and method for changing sound content thereof" was invented by Ji Hee Park (Seoul, South Korea) and Ki Un Choi (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "An audio output system comprising: an audio output device configured to output sound content for auditory stimulation of infants and young children; a user device configured to control the audio output device; and a server connected to the user device and the audio output device through communication networks, respectively, and configured to provide a service environment for c...