ALEXANDRIA, Va., June 10 -- United States Patent no. 12,291,168, issued on May 6, was assigned to LG INNOTEK Co. LTD. (Seoul, South Korea).
"Vehicle digital key system" was invented by Jae Yeon Choi (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A vehicle digital key system according to an embodiment of the present invention comprises: a first communication module for broadcasting a first signal at a predetermined time interval, calculating, when a second signal corresponding to the first signal is received from a key fob, a distance to the key fob on the basis of the second signal, and switching, when the calculated distance is within a preconfigured first threshold, a second communicati...