US 12,424,042 B2
Multi-factor authentication door access control system
Keith W. Hartman, Redwood City, CA (US); Dan Potter, Monterey, CA (US); Sunny Wang, Saratoga, CA (US); and Stephen Daniel Connor, Valley Center, CA (US)
Assigned to ASSA ABLOY Global Solutions AB, Stockholm (SE)
Filed by ASSA ABLOY Global Solutions AB, Stockholm (SE)
Filed on Feb. 27, 2023, as Appl. No. 18/114,862.
Claims priority of provisional application 63/314,337, filed on Feb. 25, 2022.
Prior Publication US 2023/0360457 A1, Nov. 9, 2023
Int. Cl. G07C 9/25 (2020.01); G07C 9/00 (2020.01); G07C 9/28 (2020.01)
CPC G07C 9/25 (2020.01) [G07C 9/00309 (2013.01); G07C 9/00563 (2013.01); G07C 9/28 (2020.01); G07C 2009/00793 (2013.01); G07C 2209/64 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A multi-factor authenticating door access control system for evaluating whether a person approaching a door is an authorized person to unlock the door, the system comprising:
a biometric authenticating reader comprising:
a housing;
at least one camera; and
at least one processor operable to:
receive a sequence of images from the at least one camera of a scene in a vicinity of the reader;
detect a person approaching the reader;
receive a credential from a physical item on the person approaching the reader;
receive an approved biometric template of the authorized person from the physical item on the person approaching the reader;
determine a computed biometric template of the person approaching the reader based on the sequence of images;
determine a level of confidence the person approaching the reader is the authorized person based on comparing the approved biometric template and the computed biometric template;
compute a level of PAD based on emitting multiple wavelengths of light towards a face of the person approaching the reader and detecting reflectance/absorption of all of the multiple wavelengths; and
prohibit activating a door lock for the door based on the level of PAD.