US 11,790,716 B2
Face authentication apparatus
Taketo Kochi, Tokyo (JP); and Kenji Saito, Tokyo (JP)
Assigned to NEC CORPORATION, Tokyo (JP)
Filed by NEC Corporation, Tokyo (JP)
Filed on Feb. 16, 2022, as Appl. No. 17/672,926.
Application 17/672,926 is a continuation of application No. 16/961,561, previously published as PCT/JP2018/047066, filed on Dec. 20, 2018.
Claims priority of application No. 2018-003233 (JP), filed on Jan. 12, 2018.
Prior Publication US 2022/0172544 A1, Jun. 2, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G07C 9/37 (2020.01); G06F 21/32 (2013.01); G06V 40/16 (2022.01)
CPC G07C 9/37 (2020.01) [G06F 21/32 (2013.01); G06V 40/172 (2022.01); G07C 2209/08 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A biometric authentication apparatus comprising:
a memory containing program instructions; and
a processor coupled to the memory, wherein the processor is configured to execute the program instructions to:
acquire biological information of an authentication target;
perform biometric authentication on the biological information on a basis of a threshold;
measure elapsed time from a time of starting operation of the biometric authentication apparatus;
receive a request for changing the threshold from a user via a threshold change screen shown on a display device and that includes a slide bar for designating the threshold, and restrict changing of the threshold to a value larger than a value determined depending on the measured elapsed time; and
when the threshold designated by the slide bar is a value larger than the value determined depending on the measured elapsed time, display on the display device a message prompting changing of the threshold designated by the slide bar to a value smaller than the value determined depending on the measured elapsed time.