US 12,452,662 B2
Authentication system, and user interface device
Masanori Kosugi, Aichi (JP); and Hideki Kawai, Aichi (JP)
Assigned to KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO, Aichi (JP)
Filed by KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO, Aichi (JP)
Filed on Aug. 11, 2022, as Appl. No. 17/885,808.
Claims priority of application No. 2021-137071 (JP), filed on Aug. 25, 2021.
Prior Publication US 2023/0065436 A1, Mar. 2, 2023
Int. Cl. H04W 12/06 (2021.01)
CPC H04W 12/06 (2013.01) 8 Claims
OG exemplary drawing
 
1. An authentication system, comprising:
an antenna configured to receive authentication information through wireless communication from a mobile device adapted to be carried by a user;
a detector configured to perform detection of approach or contact of a hand of the user with respect to the antenna based on a change in an electrostatic capacitance; and
a control device configured to control an operation of a device to be controlled based on a result of the detection in addition to authentication for authenticating the mobile device with the authentication information,
wherein the control device is configured to switch between a first state that amplitude modulation of a magnetic field emitted from the antenna is performed and a second state that the amplitude modulation is not performed,
wherein the antenna in the first state is configured to be used for both a proximity wireless communication and detection of the change in the electrostatic capacitance, and
wherein the antenna in the second state is configured to be used only for the detection of the change in the electrostatic capacitance.