ALEXANDRIA, Va., May 26 -- United States Patent no. 12,640,821, issued on May 26, was assigned to XIAOMI EV TECHNOLOGY Co. LTD. (Beijing).

"Method and device for controlling short-range wireless connection, vehicle, terminal and medium" was invented by Chengping Hua (Beijing) and Yanjiong Wang (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method and a device for controlling short-range wireless connection, a vehicle, a terminal and a medium. The method executed by an electronic control unit on the vehicle includes: controlling a loudspeaker on the vehicle to send an ultrasonic signal, in which the ultrasonic signal is configured for a target terminal to determine position information of the targe...