WEARABLE DEVICE PERFORMING USER AUTHENTICATION USING BIO-SIGNALS AND AUTHENTICATION METHOD OF THE SAME

• US 20150074797A1
• Filed: 03/06/2014
• Published: 03/12/2015
• Est. Priority Date: 09/09/2013
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: CHOI, Chang Mok, KIM, Sang Joon, YOON, Seung Keun
• Granted Patent: US 9,811,648 B2
• Time in Patent Office: Days
• US Class Current: 726/19
• CPC Class Codes: G06F 21/31 User authentication
• CPC Class Codes: G06F 21/32 using biometric data, e.g. fingerprints, iris scans or voiceprints
• CPC Class Codes: G06F 3/017 Gesture based interaction, e.g. based on a set of recognized hand gestures interaction based on gestures traced on a digitiser G06F3/04883
• CPC Class Codes: G06Q 20/40145 Biometric identity checks
• 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: H04N 21/44218 Detecting physical presence or behaviour of the user, e.g. using sensors to detect if the user is leaving the room or changes his face expression during a TV program methods or arrangements for recognising human body or animal bodies or body parts G06V40/10; methods or arrangements for acquiring or recognising human faces, facial parts, facial sketches, facial expressions G06V40/16; methods or arrangements for recognising movements or behaviour G06V40/20; arrangements for identifying users in broadcast systems H04H60/45
• CPC Class Codes: H04W 12/065 Continuous authentication
• CPC Class Codes: H04W 12/33 using wearable devices, e.g. using a smartwatch or smart-glasses
• CPC Class Codes: H04W 12/68 Gesture-dependent or behaviour-dependent

Abstract

A wearable device includes a first sensor configured to detect a first biosignal generated in response to a gesture performed by a user, and a second sensor configured to detect a second biosignal of the user. The device further includes a memory configured to store, with respect to at least one user, information of the first biosignal and the second biosignal, and a processor configured to initiate user authentication based on a result of determining whether the detected first biosignal corresponds to the stored information, and authenticate the user by comparing the detected second biosignal to the stored information.

Claims

1. A wearable device, comprising:

a first sensor configured to detect a first biosignal generated in response to a gesture performed by a user;

a second sensor configured to detect a second biosignal of the user;

a memory configured to store, with respect to at least one user, information of the first biosignal and the second biosignal; and

a processor configured to

initiate user authentication based on a result of determining whether the detected first biosignal corresponds to the stored information, and

authenticate the user by comparing the detected second biosignal to the stored information.

2. The device of claim 1, wherein the first biosignal is generated in response to a muscle movement performed by the user to input the gesture.

3. The device of claim 2, wherein the first biosignal is at least one of an electromyogram (EMG) signal generated before and after the muscle movement, a light signal penetrating a muscle of the user, and a force signal generated by the muscle.

4. The device of claim 1, wherein the second biosignal is at least one of an electrocardiogram (ECG) signal, a photoplethysmogram (PPG) signal, a voice of the user, and an impedance signal generated by a body of the user.

5. The device of claim 1, wherein the stored information comprises a piece of feature point information obtained by performing signal processing on the first biosignal and the second biosignal.

6. The device of claim 1, wherein the stored information is encoded.

7. The device of claim 1, wherein the processor is configured to:

determine whether a difference between the detected second biosignal and the stored information is within a predetermined error range; and

authenticate the user based on a result of the determining of whether the difference is within the predetermined error range.

8. The device of claim 1, further comprising:

an initial authenticator configured to

receive the gesture and the second biosignal from the user; and

store, in the memory, the first biosignal corresponding to the gesture, and the second biosignal.

9. The device of claim 1, wherein:

the memory is further configured to store access right information of a function executable in the wearable device; and

in response a command to execute the function being input to the wearable device by the user, the processor is configured to

read, from the memory, the access right information, and

provide, to the user, at least one of a visual feedback, an auditory feedback, and a tactile feedback based on the access right information.

10. The device of claim 9, wherein the feedback is a request for the user authentication.

11. The device of claim 1, further comprising:

a wearing detection sensor configured to detect whether the wearable device is detached from the user,

wherein the processor is configured to control the user authentication to be invalid in response to the wearable device being detected to be detached from the user.

12. The device of claim 11, wherein the wearing detection sensor is configured to:

detect a mechanical movement of a band attached to a portion of a body of the user; and

/or

detect an electrical signal generated by attaching and detaching of the band.

13. The device of claim 1, wherein:

the memory is further configured to store device setting information of the at least one user; and

in response to the user being authenticated, the processor is further configured to

read, from the memory, the device setting information of the authenticated user, and

provide, to the user, a user interface based on the device setting information.

14. The device of claim 1, wherein the wearable device is a watch-type smartphone.

15. A wearable device, comprising:

a first sensor configured to detect a first biosignal generated in response to a muscle movement performed by a user to input a gesture;

a second sensor configured to detect a second biosignal of the user, the second biosignal being at least one of an electrocardiogram (ECG) signal, a photoplethysmogram (PPG) signal, a voice of the user, and an impedance signal generated by a body of the user;

a memory configured to store, with respect to at least one user, information of the first biosignal and the second biosignal; and

a processor configured to

trigger user authentication based on a result of determining whether the detected first biosignal corresponds to the stored information, and

authenticate the user by comparing the detected second biosignal to the stored information.

16. A user authentication method of a wearable device, the method comprising:

detecting a first biosignal generated in response to a gesture performed by a user;

detecting a second biosignal of the user;

storing, with respect to at least one user, information of the first biosignal and the second biosignal;

initiating user authentication based on a result of determining whether the detected first biosignal corresponds to the stored information; and

authenticating the user by comparing the detected second biosignal to the stored information.

17. The method of claim 16, wherein the authenticating comprises:

determining whether a difference between the detected second biosignal and the stored information is within a predetermined error range; and

authenticating the user based on a result of the determining of whether the difference is within the predetermined error range.

18. The method of claim 16, further comprising:

receiving the gesture and the second biosignal from the user; and

storing the first biosignal corresponding to the gesture, and the second biosignal.

19. The method of claim 16, further comprising:

storing access right information of a function executable in the wearable device,

wherein, in response a command to execute the function being input to the wearable device by the user, the initiating comprises reading the access right information, and providing, to the user, at least one of a visual feedback, an auditory feedback, and a tactile feedback based on the access right information.

20. The method of claim 16, further comprising:

detecting whether the wearable device is detached from the user; and

controlling the user authentication to be invalid in response to the wearable device being detected to be detached from the user.

21. The method of claim 20, wherein the detecting comprises:

detecting a mechanical movement of a band attached to a portion of a body of the user; and

/or

detecting an electrical signal generated by attaching and detaching of the band.

22. The method of claim 16, further comprising:

storing device setting information of the at least one user; and

in response to the user being authenticated, reading the device setting information of the authenticated user, and providing, to the user, a user interface based on the device setting information.

23. A non-transitory computer-readable storage medium storing a program comprising instructions to cause a computer to perform the method of claim 16.

24. A wearable device, comprising:

a first sensor configured to detect a first signal of a user;

a second sensor configured to detect a second signal of the user; and

a processor configured to

initiate user authentication in response to the detected first signal corresponding to information of the first signal, and

authenticate the user in response to the detected second signal being within a predetermined range of information of the second signal.

25. The wearable device of claim 24, wherein the information of the first and second signals are predetermined.

26. The wearable device of claim 24, wherein the processor is further configured to:

receive, from the user, a command to execute a function; and

provide, to the user, a feedback based on predetermined access right information corresponding to the function, the predetermined access right information indicating a level of the user authentication needed.