ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,729,981, issued on Sept. 8, was assigned to HON HAI PRECISION INDUSTRY Co. LTD. (New Taipei, Taiwan).

"Installation angle calibration method, vehicle-mounted device, and storage medium" was invented by Jhen-Kai Liao (New Taipei, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An installation angle calibration method implemented in a vehicle-mounted device includes defining a first coordinate system corresponding to an IMU of a vehicle according to first IMU data obtained from the IMU, and determining a rotation angle of a first coordinate system relative to a second coordinate system where the vehicle is located; updating the first coordinate syst...