ALEXANDRIA, Va., July 21 -- United States Patent no. 12,687,564, issued on July 21, was assigned to Apple Inc. (Cupertino, Calif.).

"Capacitance measurement circuitry for a resonant tank" was invented by Timo W Gossmann (Munich).

According to the abstract* released by the U.S. Patent & Trademark Office: "Wireless circuitry is provided that includes a transformer having a primary coil and a secondary coil, a first group of switchable capacitors coupled to a first terminal of the primary coil, a second group of switchable capacitors coupled to a second terminal of the primary coil, and capacitance measurement circuitry selectively coupled to a center tap of the primary coil during a measurement mode. The capacitance measurement circuitry ca...