ALEXANDRIA, Va., May 5 -- United States Patent no. 12,621,064, issued on May 5, was assigned to RAFT TECHNOLOGY LTD. (Tel Aviv, Israel).
"Detection of a skywave symbol" was invented by Nir Halay (Tel Aviv, Israel), Tamir Ostfeld (Kfar Saba, Israel) and Elad Segalis (Haifa, Israel).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for detection of a skywave symbol, the method may include receiving, by a skywave propagation receiver, received signals that are within a skywave frequency range that comprises legal subcarriers and illegal subcarriers; and detecting a reception of the skywave symbol based on at least one energy parameter related to at least two out of (a) received signals at the illegal subca...