ALEXANDRIA, Va., March 3 -- United States Patent no. 12,568,463, issued on March 3, was assigned to MITSUBISHI ELECTRIC Corp. (Tokyo).

"Positioning system, positioning network device, control circuit, storage medium, and positioning method" was invented by Akinori Taira (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A positioning system includes: an approximate position calculation unit that calculates an approximate position of a mobile station; a database that stores information indicating a zone in which the mobile station is able to be present, information indicating an anchor to be used in each zone, and information on a communication parameter; a zone judgement unit that judges a zone to which t...