ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,451,924, issued on Oct. 21, was assigned to NOKIA TECHNOLOGIES OY (Espoo, Finland).
"Full duplex" was invented by Johannes Harrebek (Aalborg, Denmark), Benny Vejlgaard (Gistrup, Denmark), Simon Svendsen (Aalborg, Denmark) and Christian Rom (Aalborg, Denmark).
According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus comprising: radio frequency paths for antenna elements of an array of antenna elements; and means for: determining which of a first group of radio frequency paths are transmission radio frequency paths to be used for transmission and which of a second group of radio frequency paths are reception radio frequency paths to be used for reception...