ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,523,781, issued on Jan. 13, was assigned to HITACHI CONSTRUCTION MACHINERY Co. LTD. (Tokyo).
"Electronic control device" was invented by Shinji Ishihara (Tokyo), Shiho Izumi (Tokyo) and Kenta Nakagi (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electronic control device capable of suppressing variations in the position of a work machine calculated based on satellite signals received by a GNSS terminal due to changes in the GNSS communication environment, and eliminating the position error after improvement of the communication environment in a shorter time than before. The electronic control device determines whether the positioning quality i...