ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,439,191, issued on Oct. 7, was assigned to Apple Inc. (Cupertino, Calif.).

"Display system having an audio output device" was invented by Neal D. Evans (Sunnyvale, Calif.), James W. VanDyke (Sunnyvale, Calif.), Andrew M. Hulva (San Jose, Calif.), Robert D. Silfvast (Belmont, Calif.) and Christopher T. Eubank (San Francisco).

According to the abstract* released by the U.S. Patent & Trademark Office: "A display system includes a head-mounted display unit and a detachable speaker unit. The head-mounted display unit outputs visual content to a user and provides a visual pass-through of a real environment to the user. The detachable speaker unit is detachably coupleable to the head-mounted...