ALEXANDRIA, Va., May 12 -- United States Patent no. 12,626,511, issued on May 12, was assigned to NEC Corp. (Tokyo).
"Detection method" was invented by Marina Kato (Tokyo), Satoshi Terasawa (Tokyo), Yohei Itou (Tokyo) and Natsuki Yui (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A detection system 100 of the present invention includes a position detection means 121 for detecting position information representing a position of a predetermined part of a person and a position of an accessory in a specific shape held by the person, and a separation detection means 122 for detecting that the accessory is separated from the person based on the position information."
The patent was filed on March 17, 2020,...