US 12,361,775 B2
Access control device, access control system and access control method using the same
Jong Keun Lee, Seongnam-si (KR); and Seong Bin Choi, Seongnam-si (KR)
Assigned to MOCA SYSTEM INC., Seongnam-si (KR)
Filed by MOCA SYSTEM INC., Seongnam-si (KR)
Filed on Mar. 22, 2021, as Appl. No. 17/208,879.
Application 17/208,879 is a continuation of application No. 16/893,314, filed on Jun. 4, 2020, granted, now 10,984,620.
Claims priority of application No. 10-2019-0066684 (KR), filed on Jun. 5, 2019.
Prior Publication US 2021/0209879 A1, Jul. 8, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. G07C 9/00 (2020.01); G06F 21/32 (2013.01); G07C 9/27 (2020.01)
CPC G07C 9/00563 (2013.01) [G06F 21/32 (2013.01); G07C 9/00309 (2013.01); G07C 9/00571 (2013.01); G07C 9/27 (2020.01); G07C 2209/08 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An access control method performed by a terminal for confirmation of permission to enter first door corresponding to a first access control device, the method comprising:
obtaining access right information from a server, wherein the access right information includes registered identification information, wherein the registered identification information includes identification information for the first access control device and second access control device corresponding to second door to which the terminal is accessible such that the access right information is used not only to determine the access right to the first door but also to determine the access right to the second door;
detecting the first access control device;
establishing a communication channel between the first access control device and the terminal;
receiving identification information of the first access control device through the communication channel;
performing first access authenticating operation,
wherein the first access authenticating operation is performed by comparing the received identification information from the first access control device with the identification information of the first access control device and the second access control device included in the registered identification information of the access right information; and
permitting the terminal to enter the first door when a predetermined condition is satisfied in the first access authenticating operation,
wherein a validity period is set for the access right information independently of location of the terminal,
wherein the access right information is expired when the validity period elapses, and
wherein, the access right to the first door as well as the access right to the second door also expires, when the validity period expires.