ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,552,639, issued on Feb. 17, was assigned to Kone Corp. (Helsinki).
"Movement evaluation method for an elevator car" was invented by Arttu Leppakoski (Helsinki) and Atso Koskinen (Helsinki).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention is about a system and method for evaluating the movement of an elevator car within a hoistway. The same is based on gathering movement data of the car by means of a rotation encoder or acceleration sensor. Since these data are counted pulses there is a need to convert them into real movement data. This conversion is calibrated automatically by comparing the movement data with a length distance being p...