ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,393,820, issued on Aug. 19, was assigned to SAMSUNG ELECTRONICS Co. Ltd. (Gyeonggi-Do, South Korea).
"Smart card" was invented by Kyeongdo Kim (Suwon-si, South Korea) and Minhyeok Kang (Suwon-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A smart card may include: an antenna configured to receive at least one radio signal; a load circuit that is connected to both ends of the antenna; a rectifier configured to rectify the at least one radio signal received through the antenna, and provide the rectified signal to an output terminal; and a power generator including a voltage regulator, a first diode, and a second diode, the voltage regulato...