ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,413,166, issued on Sept. 9, was assigned to AAC Microtech (Changzhou) Co. Ltd. (Changzhou, China).

"Method for controlling direct drive transmission system and related device" was invented by Lin Qian (Shenzhen, China), Shun Guo (Shenzhen, China), Xueyuan Zhu (Shenzhen, China), Min Chen (Shenzhen, China), Weiling Shi (Shenzhen, China) and Yu Qin (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for controlling a direct drive transmission system and related devices. The method includes: S1: starting direct drive transmission system for overall zero returning; S2: reading a zero signal of the first incremental position feedback mea...