ALEXANDRIA, Va., March 19 -- United States Patent no. 12,251,352, issued on March 18.

"System, apparatus, and method for controlling a device based on distance" was invented by Dan Liu (Guangdong, China) and Jilin Qiu (Guangdong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system is disclosed. The system includes an accessory control module, comprising computer-executable code stored in non-volatile memory, a processor, an accessory of a user, and a terminal device. The accessory control module, the processor, the accessory, and the terminal device are configured to determine a distance between the terminal device and either the accessory or a user device of the user, and control the accessory to ...