ALEXANDRIA, Va., Feb. 12 -- United States Patent no. 12,222,434, issued on Feb. 11, was assigned to Iiwari Tracking Solutions Oy (Vuokatti, Finland).
"Node positioning" was invented by Jukka Kamarainen (Vuokatti, Finland) and Pertti Erkkila (Vuokatti, Finland).
According to the abstract* released by the U.S. Patent & Trademark Office: "According to an example aspect of the present invention, there is provided a method comprising obtaining a first length of time, a second length of time, a third length of time, a fourth length of time and a fifth length of time, and determining a time difference of arrival of a signal from a wireless tag between the first and second non-master base stations based on the determined lengths of time."
The pa...