ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,707,231, issued on Aug. 11, was assigned to Google LLC (Mountain View, Calif.).
"Ultra-wideband ranging method and device" was invented by Liping Liu (Buffalo Grove, Ill.), Darren David Krahn (Saratoga, Calif.), Xiangjun Zhao (Santa Clara, Calif.), Ning Zhang (Saratoga, Calif.), Jian Wang (Cupertino, Calif.) and Roshan Pius (Milpitas, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An ultra-wideband (UWB) ranging method comprises determining, by a first device, that the first device is within proximity of a second device. Responsive to the determination, the first device negotiates a value to use as a UWB session key for securing UWB communication...