ALEXANDRIA, Va., July 14 -- United States Patent no. 12,681,691, issued on July 14, was assigned to ALPS ALPINE Co. LTD. (Tokyo).

"Input display device" was invented by Takashi Yoshimura (Fukushima, Japan) and Yasuhiro Ikarashi (Miyagi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An input display device for is provided displaying a floating image by utilizing retroreflection, and includes circuitry configured to detect a first event in which an operating object comes in proximity to the floating image, detect a second event in which the operating object moves away from the floating image, output a first sound signal in response to detection of the first event, and output a second sound signal in res...