ALEXANDRIA, Va., June 9 -- United States Patent no. 12,287,419, issued on April 29, was assigned to Guangdong University of Technology (Guangzhou, China).

"UWB NLOS signal recognition method based on the first path of CIR" was invented by Qianqian Cai (Guangzhou, China), Haoqiang Ou (Guangzhou, China), Junwei Li (Guangzhou, China), Xiaopei Chen (Guangzhou, China) and Wentao Zhong (Guangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention discloses an UWB NLOS signal recognition method based on the first path of CIR, including constructing a UWB ranging system comprising tags and anchors. The system controls communication between the anchor and tag, processes the raw CIR data obtained from...