ALEXANDRIA, Va., March 31 -- United States Patent no. 12,593,303, issued on March 31, was assigned to BYD Co. Ltd. (Shenzhen, China).

"Positioning system and method" was invented by Hongwen Wu (Shenzhen, China), Longping Jiang (Shenzhen, China), Chengxiong Huang (Shenzhen, China) and Kaikuo Zhuo (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A positioning system includes a target device and multiple base stations connected with the target device. The multiple base stations include a master base station and multiple slave base stations that include a first slave base station and a second slave base station and are serially connected based on a synchronization order. The master base station is...