ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,407,593, issued on Sept. 2, was assigned to SAMSUNG ELECTRONICS Co. Ltd. (Suwon-si, South Korea).
"Wi-Fi based fine ranging using carrier phase information" was invented by Vishnu Vardhan Ratnam (Plano, Texas), Bilal Sadiq (Plano, Texas), Hao Chen (Allen, Texas), Abhishek Sehgal (Frisco, Texas), Boon Loong Ng (Plano, Texas) and Jianzhong Zhang (Dallas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method includes obtaining Wi-Fi channel state information (CSI) parameters measured at an anchor and a target device from Wi-Fi frames transmitted between the anchor and the target device, the CSI parameters comprising, for each of the anchor and the target ...