ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,456,340, issued on Oct. 28, was assigned to KONE Corp. (Helsinki).

"Access gate device and a method for controlling an access gate device" was invented by Jari Toivanen (Helsinki) and Kimmo Lahdensivu (Helsinki).

According to the abstract* released by the U.S. Patent & Trademark Office: "An access gate device includes one or more 3D cameras arranged at least on an entry side of the access gate device and a control unit. Each of the one or more 3D cameras is configured to provide 3D depth data of a view range of said 3D camera. The control unit is configured to: define at least two consecutive volumetric detection zones in front of the access gate device at least on the entry side, de...