ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,380,667, issued on Aug. 5, was assigned to NEC Corp. (Tokyo).

"Reference state deciding device, state determination system, reference state deciding method, and non-transitory computer readable medium" was invented by Kenta Ishihara (Tokyo) and Shoji Nishimura (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A reference state deciding device (10) according to the present disclosure includes a feature calculation unit (11) that calculates an object feature related to a target object of state determination included in a real space and an imaged space feature related to the real space on the basis of past image data of the real space imaged in the past...