Title:
ELECTRONIC DEVICE INCLUDING PLURALITY OF OPTICAL FINGERPRINT SENSORS, AND METHOD FOR OBTAINING FINGERPRINT INFORMATION AND AUTHENTICATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/063613
Kind Code:
A1
Abstract:
An electronic device according to various embodiments comprises: a display; a first fingerprint sensor disposed below the display and including a first aperture filtering light with a first component; a second fingerprint sensor disposed to have a second sensing area at least partially overlapping a first sensing area of the first fingerprint sensor, and including a second aperture filtering light with a second component complementary to the first component; a memory; and a processor operatively connected to the display, the first fingerprint sensor, the second fingerprint sensor, and the memory. The memory may store instructions configured to succeed in fingerprint authentication of an external object, when the processor: acquires a first fingerprint image corresponding to the external object requesting fingerprint authentication through the first fingerprint sensor; acquires a second fingerprint image corresponding to the external object through the second fingerprint sensor; generates a phase image on the basis of a differential component of a region where the first fingerprint image and the second fingerprint image overlap; checks whether the external object is a solid pattern having a three-dimensional shape through the phase image; checks whether at least one of the first fingerprint image and the second fingerprint image matches registered fingerprint authentication data of a user; and confirms that the external object is a three-dimensional pattern and all the conditions matching the registered fingerprint authentication data are satisfied.
Inventors:
KIM JINHO (KR)
Application Number:
PCT/KR2022/014192
Publication Date:
April 20, 2023
Filing Date:
September 22, 2022
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
G06V40/13; G02B5/00; G06V10/26; G06V40/12
Foreign References:
| KR20200069105A | 2020-06-16 | |||
| KR20210106122A | 2021-08-30 | |||
| US20210124892A1 | 2021-04-29 | |||
| US20200218867A1 | 2020-07-09 | |||
| KR20180086086A | 2018-07-30 |
Attorney, Agent or Firm:
YOON & LEE INTERNATIONAL PATENT & LAW FIRM (KR)
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