ALEXANDRIA, Va., June 12 -- United States Patent no. 12,298,397, issued on May 13, was assigned to SUTENG INNOVATION TECHNOLOGY Co. LTD. (Shenzhen, China).

"Range-finding system and method for data communication within the same" was invented by Zhihua Chen (Shenzhen, China), Letian Liu (Shenzhen, China), Chunxin Qiu (Shenzhen, China), Xujun Tan (Shenzhen, China) and Xiaojun Zhou (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A magnetic ring and a magnetic-ring-based system are provided. The magnetic ring includes an inner magnetic ring including an inner coil and an outer magnetic ring corresponding to the inner magnetic ring and including an outer coil facing the inner coil along a circumfe...