ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,560,671, issued on Feb. 24, was assigned to DeLaval Holding AB (Tumba, Sweden).
"System, computer-implemented positioning method, computer program and non-volatile data carrier" was invented by Goran Eriksson (Tumba, Sweden) and Anders Umegard (Tumba, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "Each of multiple entities has a respective attached mobile unit that transmits, periodically, a first radio message with identity information of the corresponding entity. At least three base stations receive the first radio message; and based thereon, forward, via a transmission line, the identity information and timing information indicating when the f...