US 12,271,874 B2
Security key input system and method using one-time keypad
Seungshin Choi, Seoul (KR)
Filed by Seungshin Choi, Seoul (KR)
Filed on Jun. 26, 2023, as Appl. No. 18/341,024.
Application 18/341,024 is a continuation of application No. 15/207,856, filed on Jul. 12, 2016, granted, now 11,727,371.
Claims priority of application No. 10-2015-0122649 (KR), filed on Aug. 31, 2015; application No. 10-2015-0154494 (KR), filed on Nov. 4, 2015; application No. 10-2015-0154496 (KR), filed on Nov. 4, 2015; application No. 10-2015-0176170 (KR), filed on Dec. 10, 2015; application No. 10-2016-0001814 (KR), filed on Jan. 7, 2016; application No. 10-2016-0008115 (KR), filed on Jan. 22, 2016; and application No. 10-2016-0020838 (KR), filed on Feb. 22, 2016.
Prior Publication US 2023/0334452 A1, Oct. 19, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G06Q 20/10 (2012.01); G06Q 20/32 (2012.01); G06Q 20/40 (2012.01)
CPC G06Q 20/1085 (2013.01) [G06Q 20/3278 (2013.01); G06Q 20/4014 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A security key input system using a one-time keypad, comprising:
an input terminal; and
an output terminal,
wherein the output terminal is configured to:
provide the one-time keypad to the input terminal; and
generate the one-time keypad based on a synchronization between the input terminal and the output terminal, and
wherein the input terminal is configured to:
output an input window including one or more null keys, each of the one or more null keys having no identification mark written thereon;
receive a security key inputted by a user through the input window;
receive the one-time keypad through near field communication (NFC) with the output terminal in contact with the input terminal; and
determine whether the security key coincides with a preset code, and approve whether to disable security, based on the determination.