ALEXANDRIA, Va., March 19 -- United States Patent no. 12,251,843, issued on March 18, was assigned to ABB Schweiz AG (Baden, Switzerland).

"Method and electronic device, system and computer readable medium for calibration" was invented by Xinyu Fang (Shanghai), Yichao Mao (Shanghai), Qi Lu (Shanghai) and Jiafan Zhang (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems, devices, and methods for time calibration. The method can include, in responses to receiving sensing data which indicates a deviation of a tool from an object to be operated by a robot with the tool, triggering the robot to perform a plurality of transformations. Each transformation causing the tool to contact the object at a refe...