ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,726,281, issued on Sept. 1, was assigned to QUALCOMM Inc. (San Diego).
"In-device characterization of antenna coupling" was invented by Erwin Spits (Utrecht, Netherlands), Francesco Gatta (San Diego), Adrianus Van Bezooijen (Molenhoek, Netherlands), Leon Metreaud (Pepperell, Mass.) and Hakan Inanoglu (Acton, Mass.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A wireless communication device is provided with an in-device capability of characterizing the coupling between a pair of antennas. The wireless communication device determines the coupling through an operating gain measurement and through calibration gain measurements obtained through test ports....