ALEXANDRIA, Va., June 5 -- United States Patent no. 12,278,504, issued on April 15, was assigned to Koninklijke Philips N.V. (Eindhoven, Netherlands).
"Communication in a wireless power transfer system" was invented by Aleksei Agafonov (Eindhoven, Netherlands) and Antonius Adriaan Maria Staring (Eindhoven, Netherlands).
According to the abstract* released by the U.S. Patent & Trademark Office: "A power transfer system comprises a power transmitter (101) wirelessly providing power to a power receiver (105) via an inductive power transfer signal. Communication from power receiver (105) to the power transmitter (101) is by load modulation using the power transfer signal. The communication uses load modulation where each symbol is represented...