ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,483,173, issued on Nov. 25, was assigned to AAC Technologies (Nanjing) Co. Ltd. (Nanjing, China).

"Direct drive transmission system and control method" was invented by Shun Guo (Nanjing, China), Weiling Shi (Nanjing, China), Lin Qian (Nanjing, China) and Xueyuan Zhu (Nanjing, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides a direct drive transmission system and a control method. The direct drive transmission system includes: a base plate, guide rails, a plurality of stators, a mover, a first position feedback device, a plurality of second position feedback devices, a plurality of drivers, and a controller. The first ...