ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,513,643, issued on Dec. 30, was assigned to ZaiNar Inc. (Redwood City, Calif.).

"Method for clock synchronization via differential channel state information" was invented by Tommi Ylamurto (Redwood City, Calif.) and Philip A. Kratz (Redwood City, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method includes: based on a synchronization signal transmitted from a master node and received at a sniffer node, recording a partial channel state information characterizing a communication channel between the master node and the sniffer node for a second time period; in response to a localization signal transmitted from a target device, calculating a tim...