Electronic device and biometric authentication method using same

Patent metadata

Field	Value
Publication number	US-12586421-B2
Application number	US-202318538523-A
Country	US
Kind code	B2
Filing date	Dec 13, 2023
Priority date	Jun 15, 2021
Publication date	Mar 24, 2026
Grant date	Mar 24, 2026

Abstract

An electronic device is provided. The electronic device includes a fingerprint sensor, a camera, and a processor operatively coupled to the fingerprint sensor and the camera. The processor may be configured to determine whether a plurality of biometric authentications are being performed when an input for performing user authentication is detected through the fingerprint sensor, stop user authentication using the camera if it is determined that the plurality of biometric authentications are being performed, and perform user authentication if a fingerprint image acquired through the fingerprint sensor matches a previously registered fingerprint image.

First claim

What is claimed is:

1 . An electronic device comprising:
a fingerprint sensor; a camera; and a processor operatively connected to the fingerprint sensor and the camera, wherein the processor is configured to:
identify whether a plurality of bio authentications are being performed in case that an input for performing a user authentication using the fingerprint sensor is detected,
suspend a user authentication using the camera in case that it is identified that the plurality of bio authentications are being performed, and
perform the user authentication in case that a fingerprint image obtained by using the fingerprint sensor coincides with a previously registered fingerprint image.

2 . The electronic device of claim 1 , wherein the processor is further configured to:
resume the suspended user authentication using the camera in case that processing of the fingerprint image obtained by using the fingerprint sensor is ended.

3 . The electronic device of claim 1 , further comprising:
a memory, wherein the processor is further configured to:
store, based on a result of performing the user authentication, information related to a bio authentication type used for the user authentication in the memory.

4 . The electronic device of claim 3 , wherein information related to the bio authentication used for the user authentication includes at least one of information about the bio authentication type used for the user authentication or information about a number of user authentications performed using the bio authentication type.

5 . The electronic device of claim 4 , wherein the processor is further configured to:
identify an occupancy rate of the processor allocated to a process that performs each of the plurality of bio authentications in case that it is identified that the plurality of bio authentications are being performed, and perform, based on the occupancy rate of the processor, the user authentication using the fingerprint sensor.

6 . The electronic device of claim 5 , wherein the processor is further configured to:
update, based on the result of performing the user authentication using the fingerprint sensor, the information related to the bio authentication type used for the user authentication, identify whether an adjust of the occupancy rate of the processor allocated to the process that performs each of the plurality of bio authentications is necessary, and adjust the occupancy rate of the processor allocated to the process that performs each of the plurality of bio authentications in case that it is identified that the adjust of the occupancy rate of the processor allocated to the process that performs each of the plurality of bio authentications is necessary.

7 . The electronic device of claim 6 , wherein the processor is further configured to:
identify that the adjust of the occupancy rate of the processor allocated to the process that performs each of the plurality of bio authentications is necessary in case that a usage rate of a specific bio authentication used for a specified period of time among the plurality of bio authentications is higher than a usage rate of at least one other bio authentication based on the updated information related to the bio authentication type used for the user authentication.

8 . The electronic device of claim 6 , wherein the processor is further configured to:
adjust, based on the updated information related to the bio authentication type used for the user authentication, at least one of a run time or an execution occupancy rate of each of the plurality of bio authentications allocated to the processor.

9 . The electronic device of claim 3 , wherein the processor is further configured to:
identify, based on the information related to the bio authentication type used for the user authentication, whether a bio authentication type that is not used for a specified period of time exists, and output a notification notifying of an existence of the bio authentication type that is not used for the specified period of time in case that the bio authentication type that is not used for the specified period of time exists.

10 . The electronic device of claim 1 , wherein the processor is further configured to:
obtain a face image by using the camera in case that the input for performing the user authentication using the fingerprint sensor is not detected, and perform the user authentication in case that the face image obtained by using the camera coincides with a previously registered face image.

11 . A bio authentication method of an electronic device, the method comprising:
identifying whether a plurality of bio authentications are being performed in case that an input for performing a user authentication using a fingerprint sensor is detected; suspending a user authentication using a camera in case that it is identified that the plurality of bio authentications are being performed; and performing the user authentication in case that a fingerprint image obtained by using the fingerprint sensor coincides with a previously registered fingerprint image.

12 . The method of claim 11 , further comprising:
resuming the suspended user authentication using the camera in case that processing of the fingerprint image obtained by using the fingerprint sensor is ended.

13 . The method of claim 11 , further comprising:
storing, based on a result of performing the user authentication, information related to a bio authentication type used for the user authentication in a memory of the electronic device.

14 . The method claim 13 , wherein information related to the bio authentication used for the user authentication includes at least one of information about the bio authentication type used for the user authentication or information about a number of user authentications performed using the bio authentication type.

15 . The method of claim 13 , wherein the performing of the user authentication further comprises:
identifying an occupancy rate of a processor allocated to a process that performs each of the plurality of bio authentications in case that it is identified that the plurality of bio authentications are being performed; and performing, based on an occupancy rate of the processor, the user authentication using the fingerprint sensor.

16 . The method of claim 15 , wherein the performing of the user authentication further comprises:
updating, based on a result of performing the user authentication using the fingerprint sensor, the information related to the bio authentication type used for the user authentication; identifying whether an adjust of the occupancy rate of the processor allocated to the process that performs each of the plurality of bio authentications is necessary; and adjusting the occupancy rate of the processor allocated to the process that performs each of the plurality of bio authentications in case that it is identified that the adjust of the occupancy rate of the processor allocated to the process that performs each of the plurality of bio authentications is necessary.

17 . The method of claim 16 , wherein the identifying of whether the adjust of the occupancy rate of the processor comprises:
identifying that the adjust of the occupancy rate of the processor allocated to the process that performs each of the plurality of bio authentications is necessary in case that a usage rate of a specific bio authentication used for a specified period of time among the plurality of bio authentications is higher than a usage rate of at least one other bio authentication bas

Assignees

• Samsung Electronics Co Ltd

Inventors

• Kim Minchul
• Kim Tanil
• KIM Hyeonho
• Lee Siwoo
• Jang Jaejeong

Classifications

• G06F21/32

  using biometric data, e.g. fingerprints, iris scans or voiceprints · CPC title

• G06V40/13

  Sensors therefor · CPC title

• G06V40/172

  Classification, e.g. identification · CPC title

• G06V40/1365 Primary

  Matching; Classification · CPC title

• G06V40/1318

  using electro-optical elements or layers, e.g. electroluminescent sensing · CPC title