ALEXANDRIA, Va., July 3 -- United States Patent no. 12,347,251, issued on July 1, was assigned to MOCA SYSTEM INC. (Seongnam-si, South Korea).

"Access control system and access control method using the same" was invented by Dong Mok Shin (Seoul, South Korea), In Sik Baek (Seoul, South Korea), Jong Keun Lee (Seongnam-si, South Korea), Jung Young Kim (Yongin-si, South Korea), Seong Bin Choi (Seongnam-si, South Korea) and Jae Won Lee (Seongnam-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A sub-reader and a method of controlling the sub-reader are provided. The method of controlling the sub-reader which is connected to a door reader provided in an existing installed door operating device to pro...