ALEXANDRIA, Va., Aug. 18 -- United States Patent no. 12,711,810, issued on Aug. 18, was assigned to Feitian Technologies Co. Ltd. (Beijing).
"Method, apparatus and system for implementing fingerprint enrollment" was invented by Baohua Ma (Beijing) and Zhou Lu (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for implementing fingerprint enrollment. Upon detecting a level change at a card presence detect pin of a card holder, an MCU controls to supply power to a fourth contact of a card holder after pulling down a fifth I/O pin, controls a second I/O pin and a third I/O pin to output low and high levels respectively. The MCU enables and resets a second timer when the first contact of the card h...