ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,744,581, issued on Sept. 22, was assigned to Nokia Technologies Oy (Espoo, Finland).
"Method, apparatus and computer program" was invented by Oana-Elena Barbu (Aalborg, Denmark), Benny Vejlgaard (Gistrup, Denmark) and Johannes Harrebek (Aalborg, Denmark).
According to the abstract* released by the U.S. Patent & Trademark Office: "There is provided an apparatus including receiving, at a second node, a signal including contributions of at least one backscatter signal and at least one further signal, the at least one backscatter signal being transmitted by a respective at least one passive device in response to a first node transmitting a first signal to the at least one passive device...