US Patent Issued to Wacom on May 27 for "Pen state detection circuit and method inhibiting unexpecterd results from periphery of touch sensor" (Japanese Inventor)

ALEXANDRIA, Va., June 17 -- United States Patent no. 12,314,516, issued on May 27, was assigned to Wacom Co. Ltd. (Saitama, Japan).

"Pen state detection circuit and method inhibiting unexpecterd results from periphery of touch sensor" was invented by Yoshio Nomura (Saitama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A pen state detection circuit that is connected to a touch sensor of a capacitance type and adapted to detect a state of an electronic pen in accordance with an output signal from the touch sensor. The touch sensor includes sensor electrodes disposed in a planar manner, and the electronic pen includes a first electrode and a second electrode. The pen state detection circuit includes a p...