US Patent Issued to Alps Alpine on June 9 for "Capacitive detection device" (Japanese Inventor)

ALEXANDRIA, Va., June 9 -- United States Patent no. 12,650,750, issued on June 9, was assigned to Alps Alpine Co. Ltd. (Tokyo).

"Capacitive detection device" was invented by Tomoki Yamada (Miyagi-ken, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A capacitive detection device includes a sensor electrode, a shield electrode, a first voltage output unit configured to output a first alternating current voltage, a second voltage output unit configured to apply, to the shield electrode, a second alternating current voltage having a same frequency and phase as the first alternating current voltage and amplitude larger than that of the first alternating current voltage, a detection unit, an adjustment electr...