US 12,261,839 B2
User authentication system and portable terminal
Yasunobu Hashimoto, Kyoto (JP); Osamu Kawamae, Kyoto (JP); Kazuhiko Yoshizawa, Kyoto (JP); Nobuo Masuoka, Kyoto (JP); and Hiroshi Shimizu, Kyoto (JP)
Assigned to MAXELL, LTD., Kyoto (JP)
Filed by MAXELL, LTD., Kyoto (JP)
Filed on May 1, 2023, as Appl. No. 18/310,260.
Application 18/310,260 is a continuation of application No. 16/755,132, granted, now 11,677,744, previously published as PCT/JP2018/001014, filed on Jan. 16, 2018.
Prior Publication US 2023/0269247 A1, Aug. 24, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 9/40 (2022.01); G06F 21/35 (2013.01); H04L 9/32 (2006.01); H04W 12/30 (2021.01); H04W 12/33 (2021.01); H04W 12/63 (2021.01); H04W 12/64 (2021.01)
CPC H04L 63/0853 (2013.01) [G06F 21/35 (2013.01); H04L 9/3234 (2013.01); H04L 63/0492 (2013.01); H04L 63/0884 (2013.01); H04L 63/20 (2013.01); H04W 12/30 (2021.01); H04W 12/33 (2021.01); H04W 12/63 (2021.01); H04W 12/64 (2021.01)] 18 Claims
OG exemplary drawing
 
11. A method for controlling a portable terminal including communication circuitry configured to communicate with a device, the method comprising:
generating a first authentication code transmission request including a first value selected for each instance of transmission;
transmitting the first authentication code transmission request to the device via the communication circuitry;
receiving, via the communication circuitry, a first authentication code, wherein the device transmits the first authentication code to the portable terminal in response to receiving the first authentication code transmission request;
determining that first authentication is successful based on the first authentication code;
executing a predetermined functionality in response to determining that the first authentication is successful;
receiving, via the communication circuitry, a second authentication code transmission request including a second value transmitted from the device;
generating a second authentication code in response to receiving the second value; and
transmitting the second authentication code as a reply to the device via the communication circuitry,
wherein the portable terminal includes a storage; and a position detector,
wherein the method further comprises acquiring a position of the portable terminal through the position detector and store position information on the position into the storage in association with a period,
wherein the first value indicates a first predetermined past period during which the position of the portable terminal has been acquired and stored into the storage; and the first authentication code is the position information of the device, and
wherein the second value indicates a second predetermined past period; and the second authentication code is position information of the portable terminal stored in the storage in association with the second predetermined past period.