ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,782,384, issued on Nov. 3, was assigned to HITACHI CONSTRUCTION MACHINERY Co. LTD. (Tokyo).
"Speed measurement device" was invented by Hiroki Ito (Tokyo), Tien Trien Le (Tokyo), Shogo Kunioka (Tokyo), Tomoaki Shinpo (Tokyo) and Hiroshi Tsukui (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "The purpose of the present invention is to provide a speed measurement device with which it is possible to accurately identify the highest travel speed of a work machine using the result of measurement by an acceleration sensor. The speed measurement device according to the present invention: detects, from within a record of the travel acceleration of a work mach...