ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,524,890, issued on Jan. 13, was assigned to 7-Eleven Inc. (Irving, Texas).

"System and method for detecting a trigger event for identification of an item" was invented by Xinan Wang (McKinney, Texas), Kyle J Dalal (Coppell, Texas), Fahad Mirza (Arlington, Texas) and Jon Andrew Crain (Mechanicsburg, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A reference depth image of a platform is captured using a three-dimensional (3D) sensor. A plurality of secondary depth images are captured, wherein for each secondary depth image, a depth difference parameter is determined by comparing the secondary depth image and the reference depth image. In response to d...