ELECTRONIC DEVICE AND CONTROL METHOD

• US 20170127283A1
• Filed: 10/28/2016
• Published: 05/04/2017
• Est. Priority Date: 10/29/2015
• Status: Active Grant

• Current Assignee: Kyocera Corporation
• Original Assignee: Kyocera Corporation
• Inventors: TANABE, Shigeki, MORITA, Hideki, MASUIKE, Isao, SAITO, Shinya
• Granted Patent: US 9,894,527 B2
• Time in Patent Office: Days
• CPC Class Codes: G06F 21/32 using biometric data, e.g. fingerprints, iris scans or voiceprints
• CPC Class Codes: G06F 21/36 by graphic or iconic representation
• CPC Class Codes: G06F 2221/2111 Location-sensitive, e.g. geographical location, GPS
• CPC Class Codes: G06F 2221/2113 Multi-level security, e.g. mandatory access control
• CPC Class Codes: H04L 63/0861 using biometrical features, e.g. fingerprint, retina-scan cryptographic mechanisms or cryptographic arrangements for entity authentication using biological data H04L9/3231
• CPC Class Codes: H04W 12/06 Authentication
• CPC Class Codes: H04W 12/08 Access security
• CPC Class Codes: H04W 12/67 Risk-dependent, e.g. selecting a security level depending on risk profiles
• CPC Class Codes: H04W 12/68 Gesture-dependent or behaviour-dependent

Abstract

An electronic device includes a controller that changes an authentication level that is used to perform unlocking on locking based on a locking function according to a travel state of a user. The controller acquires first biometric information that is acquired by a biometric information acquisition module in association with an unlocking operation, determines an unlocking condition on the basis of the changed authentication level, calculates a matching rate between the first biometric information and second biometric information that is set and registered in advance, and when it is determined that the matching rate satisfies the determined unlocking condition, performs unlocking on the locking.

Claims

1. An electronic device comprising a controller that changes an authentication level that is used to perform unlocking on locking based on a locking function according to a travel state of a user.

2. The electronic device according to claim 1, wherein the controller

acquires first biometric information that is acquired by a biometric information acquisition module in association with an unlocking operation,

determines an unlocking condition on the basis of the changed authentication level,

calculates a matching rate between the first biometric information and second biometric information that is set and registered in advance, and

when it is determined that the matching rate satisfies the determined unlocking condition, performs unlocking on the locking.

3. The electronic device according to claim 1, wherein the controller

determines the travel state when performing the locking and performing the unlocking on the locking, and

changes the authentication level on the basis of a first travel state that is a result of determination made when the locking is performed and a second travel state that is a result of determination made when the unlocking is performed.

4. The electronic device according to claim 3, wherein the controller

lowers the authentication level to a level lower than a standard level when the first travel state and the second travel state are the same, and

maintains the authentication level at the standard level when the first travel state and the second travel state are different from each other.

5. The electronic device according to claim 4, wherein the controller is capable of determining, as the travel state, a still state in which a subject device is placed on a still object, and

in a case where both the first travel state and the second travel state are the still state, even when both the first travel state and the second travel state are the same, the controller maintains the authentication level at the standard level.

6. The electronic device according to claim 3, wherein the controller is capable of determining, as the travel state, any one of a state where the user travels without using an automobile or a train and a state where the user does not travel and,

when the first travel state is a state where the user travels without using an automobile or a train and the second travel state is a state where the user does not travel, the controller lowers the authentication level to a level lower than a standard level for a given time.

7. The electronic device according to claim 1, wherein the controller

determines whether there is a change in the travel state during a period after the locking is performed until the unlocking is performed on the locking,

maintains the authentication level at a standard level when the result of the determination represents that there is a change in the travel state, and

lowers the authentication level to a level lower than the reference level when the result of the determination represents that there is not a change in the travel state.

8. The electronic device according to claim 1, wherein

the controller calculates a travel speed of a subject device, determines whether there is a change in the travel state during a period after the locking is performed until the unlocking is performed on the locking,

when the result of the determination represents that there is a change in the travel state, the controller determines whether the travel speed exceeds a threshold, the travel speed being obtained when the travel state changes and

when the travel speed exceeds the threshold, the controller increases the authentication level to a level higher than a standard level for a given time.

9. A control method comprising:

performing first control to perform locking based on a locking function;

performing second control to determine a travel state of a user according to the performing of the locking;

performing third control to, after the second control, determine the travel state again in response to acceptance of an input of first biometric information,

performing fourth control to change an authentication level that is used to perform unlocking on the locking on the basis of a result of determining the travel state at the second control and a result of determining the travel state at the third control;

performing fifth control to determine an unlocking condition on the basis of the authentication level;

performing sixth control to calculate a matching rate between the first biometric information and second biometric information that is set and registered in advance; and

performing seventh control to perform unlocking on the locking when the matching rate satisfies the unlocking condition.