US 12,143,379 B2
Biometric authentication system and living body information detection device
Masahiro Tada, Tokyo (JP); Takashi Nakamura, Tokyo (JP); Akio Takimoto, Tokyo (JP); and Tomokatsu Kinugawa, Tokyo (JP)
Assigned to JAPAN DISPLAY INC., Tokyo (JP)
Filed by Japan Display Inc., Tokyo (JP)
Filed on Sep. 29, 2021, as Appl. No. 17/488,295.
Application 17/488,295 is a continuation of application No. PCT/JP2020/004661, filed on Feb. 6, 2020.
Claims priority of application No. 2019-070821 (JP), filed on Apr. 2, 2019.
Prior Publication US 2022/0021669 A1, Jan. 20, 2022
Int. Cl. H04L 9/40 (2022.01); G06F 3/041 (2006.01); G06V 10/141 (2022.01); G06V 40/12 (2022.01); G06V 40/13 (2022.01)
CPC H04L 63/0861 (2013.01) [G06F 3/04164 (2019.05); G06F 3/04166 (2019.05); G06V 10/141 (2022.01); G06V 40/1318 (2022.01); G06V 40/1394 (2022.01)] 11 Claims
OG exemplary drawing
 
1. A biometric authentication system comprising:
a detection device configured to acquire living body information; and
an authentication device coupled to the detection device via a network and configured to perform personal authentication, wherein
the detection device has
a plurality of sensor elements,
a plurality of gate lines and a plurality of signal lines provided in correspondence with the sensor elements, and
a gate line drive circuit scanning the gate lines,
the authentication device has
a memory storing therein a sensor control code controlling the sensor elements and registered living body information as living body information registered in advance,
a sensor control code setter configured to set the sensor control code when receiving, from the detection device, an authentication request signal to start authentication, and
a communicator configured to transmit the sensor control code to the detection device,
the sensor control code includes a plurality of selection modes of the gate lines, and
the gate line drive circuit scans the gate lines based on the selection modes of the gate lines included in the sensor control code received from the authentication device, the selection modes of the gate lines having at least two or more of information out of:
information on a scan direction of the gate lines,
information on a number of the gate lines that are simultaneously selected,
information on a code selecting certain one or more gate lines out of the gate lines, and
information randomly driving the gate lines.