ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,775,084, issued on Oct. 27, was assigned to SIGNIFY HOLDING B.V. (Eindhoven, Netherlands).

"Radio frequency sensing system" was invented by Hugo Jose Krajnc (Eindhoven, Netherlands), Paul Henricus Johannes Maria Van Voorthuisen (Sint Oedenrode, Netherlands) and Peter Deixler (Arlington, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A radio frequency (RF) sensing system (10) is provided and comprises RF sensing nodes (200) having a RF node transceiver (210), and a node controller (220) with a RF sensing controller (223) sensing RF signals from other RF nodes (200). A controller (100) comprises a mode controller (120) having a calibration mode cont...