Fingerprint authentication device

Patent metadata

Field	Value
Publication number	US-10974697-B2
Application number	US-201916512842-A
Country	US
Kind code	B2
Filing date	Jul 16, 2019
Priority date	Oct 12, 2018
Publication date	Apr 13, 2021
Grant date	Apr 13, 2021

Abstract

A fingerprint authentication device is mounted in a vehicle and includes a fingerprint sensor configured to perform a fingerprint detection process that detects a fingerprint of a finger brought into contact with the fingerprint sensor, a fingerprint authentication unit configured to perform a fingerprint authentication process based on the fingerprint detected through the fingerprint detection process, and a controller configured to control permission and non-permission of execution of the fingerprint detection process, and the controller is configured not to permit the execution of the fingerprint detection process when a speed of the vehicle is equal to or greater than a predetermined value.

First claim

What is claimed is:

1. A fingerprint authentication device mounted in a vehicle, the fingerprint authentication device comprising:
a fingerprint sensor configured to perform a fingerprint detection process that detects a fingerprint of a finger brought into contact with the fingerprint sensor;
a sensor unit configured to perform a fingerprint authentication process based on the fingerprint detected through the fingerprint detection process; and
a controller configured to control permission and non-permission of execution of the fingerprint detection process, wherein
the controller is configured not to permit the execution of the fingerprint detection process when a speed of the vehicle is equal to or greater than a predetermined value.

2. The fingerprint authentication device according to claim 1 , wherein the controller is configured not to permit the execution of the fingerprint detection process when the controller detects a state in which a predetermined first condition has been satisfied, which is assumed to be a state in which the fingerprint detection process is not needed, even in a case in which the speed of the vehicle is smaller than the predetermined value.

3. The fingerprint authentication device according to claim 2 , wherein:
the first condition is that at least one of a second condition and a third condition is satisfied;
the second condition is that a power supply of the vehicle is ON, the fingerprint authentication process is successful, and the fingerprint sensor is a genuine product; and
the third condition is that the power supply of the vehicle is ON, and a predetermined authentication process that is an alternative to the fingerprint authentication process is successful.

4. The fingerprint authentication device according to claim 3 , wherein the controller is configured to determine whether or not the fingerprint sensor is the genuine product by performing predetermined communication with the fingerprint sensor to authenticate the fingerprint sensor.

5. The fingerprint authentication device according to claim 1 , wherein the controller is configured to permit the execution of the fingerprint detection process when the speed of the vehicle is smaller than the predetermined value and the controller detects a state in which a predetermined fourth condition has been satisfied, which is assumed to be a state in which the fingerprint detection process is needed, in a case in which the execution of the fingerprint detection process is not permitted.

6. The fingerprint authentication device according to claim 5 , wherein the fourth condition is that at least one of a brake being in operation, a door of a driver's seat having changed from a closed state to an open state, the door of the driver's seat having changed from the open state to the closed state, a push start switch having changed from an OFF state to an ON state, a fingerprint authentication request having been received from another device, and a power supply of the vehicle having changed from a state other than the OFF state to the OFF state is satisfied.

7. A fingerprint authentication device mounted in a vehicle, the fingerprint authentication device comprising:
a sensor configured to:
detect a fingerprint of a finger brought into contact with a surface of the sensor, and
perform a fingerprint authentication process based on the detected fingerprint; and

a controller configured to control permission and non-permission of execution of the fingerprint detection process, wherein
the controller is configured not to permit the execution of the fingerprint detection process when a speed of the vehicle is equal to or greater than a predetermined value.

8. The fingerprint authentication device according to claim 7 , wherein the controller is configured not to permit the execution of the fingerprint detection process when the controller detects a state in which a predetermined first condition has been satisfied, which is assumed to be a state in which the fingerprint detection process is not needed, even in a case in which the speed of the vehicle is smaller than the predetermined value.

9. The fingerprint authentication device according to claim 8 , wherein:
the first condition is that at least one of a second condition and a third condition is satisfied;
the second condition is that a power supply of the vehicle is ON, the fingerprint authentication process is successful, and the sensor is a genuine product; and
the third condition is that the power supply of the vehicle is ON, and a predetermined authentication process that is an alternative to the fingerprint authentication process is successful.

10. The fingerprint authentication device according to claim 9 , wherein the controller is configured to determine whether or not the sensor is the genuine product by performing predetermined communication with the sensor to authenticate the sensor.

11. The fingerprint authentication device according to claim 7 , wherein the controller is configured to permit the execution of the fingerprint detection process when the speed of the vehicle is smaller than the predetermined value and the controller detects a state in which a predetermined fourth condition has been satisfied, which is assumed to be a state in which the fingerprint detection process is needed, in a case in which the execution of the fingerprint detection process is not permitted.

12. The fingerprint authentication device according to claim 11 , wherein the fourth condition is that at least one of a brake being in operation, a door of a driver's seat having changed from a closed state to an open state, the door of the driver's seat having changed from the open state to the closed state, a push start switch having changed from an OFF state to an ON state, a fingerprint authentication request having been received from another device, and a power supply of the vehicle having changed from a state other than the OFF state to the OFF state is satisfied.

Assignees

• Toyota Motor Co Ltd
• Tokai Rika Co Ltd

Inventors

• Ohta Yasuhisa
• Goto Yuya
• Takada Naoyuki
• Ando Takahiko
• Ohashi Yosuke
• Owaki Rijin
• Ogawa Daisuke

Classifications

• G06V40/13

  Sensors therefor · CPC title

• G06V40/1365

  Matching; Classification · CPC title

• G06V40/12 Primary

  Fingerprints or palmprints · CPC title

• B60R25/32

  of vehicle dynamic parameters, e.g. speed or acceleration · CPC title

• B60R25/252 Primary

  Fingerprint recognition · CPC title