ALEXANDRIA, Va., June 19 -- United States Patent no. 12,334,851, issued on June 17, was assigned to AAC Technologies (Nanjing) Co. Ltd. (Nanjing, China).

"Direct drive system, control method for the same, electronic device and storage medium" was invented by Lin Qian (Nanjing, China), Shun Guo (Nanjing, China), Xueyuan Zhu (Nanjing, China) and Weiling Shi (Nanjing, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides a direct drive system, a control method for the same, an electronic device and a storage medium. In the direct drive system, the plurality of primary units are designed to have the position mode and the current mode. In the position mode, a position control instru...