# US 2019/0318073 A1 · Method for registering and authenticating biometric data and electronic device thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0318073 A1 - Document ID: US20190318073A1 - Status: Published application - Kind: A1 - Application number: 16/469,002 - Filed: 2017-11-20 - Published: 2019-10-17 - Earliest claimed: 2016-12-12 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Haechang LEE; Jaehyung PARK; Jiwoong Oh; Pil-Joo YOON - Web page: https://patentgrep.com/patent/US20190318073A1 ## CPC - G06F 21/32: using biometric data, e.g. fingerprints, iris scans or voiceprints - G06F 3/041: Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means - G06F 21/45: Structures or tools for the administration of authentication - G06V 30/242: Division of the character sequences into groups prior to recognition; Selection of dictionaries - G06V 40/1365: {Matching; Classification} - G06V 40/1376: {Matching features related to ridge properties or fingerprint texture} - G06V 40/50: Maintenance of biometric data or enrolment thereof - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING ## Abstract The present invention is for registering and authenticating biometric data in an electronic device, the electronic device including: a display including a touch sensor; a fingerprint sensor for acquiring fingerprint data through at least a partial region of the display region of the display; and a processor. Here, the processor can be set to: acquire first touch information from a first user input using the touch sensor, in response to the first user input for registering a fingerprint of a user; acquire first fingerprint data using the fingerprint sensor; register the first fingerprint data as fingerprint information based on the first touch information, the registering operation including an operation for classifying the first fingerprint data based on the first touch information; acquire second touch information from a second user input using the touch sensor, in response to the second user input for authenticating the fingerprint of the user; acquire second fingerprint data using the fingerprint sensor; select a candidate group for comparison from among the fingerprint information based on the second touch information; and compare fingerprint data included in the candidate group with the second fingerprint data. ## Claims ### Claim 1 An electronic device comprising: a display comprising a touch sensor; a fingerprint sensor configured to acquire fingerprint data through at least a partial region of a display region of the display; and a processor, wherein the processor is configured to: in response to a first user input for registering a user's fingerprint, acquire first touch information from the first user input by using the touch sensor and acquire first fingerprint data by using the fingerprint sensor; register the first fingerprint data as fingerprint information based on the first touch information, the registering comprising classifying the first fingerprint data based on the first touch information; in response to a second user input for authenticating the user's fingerprint, acquire second touch information from the second user input by using the touch sensor and acquire second fingerprint data by using the fingerprint sensor; select a candidate group for comparison from among the fingerprint information based on the second touch information; and compare fingerprint data included in the candidate group with the second fingerprint data. ### Claim 2 (depends on 1) The electronic device of claim 1, wherein the processor is configured to: identify a hand holding the electronic device at the time of generation of the first fingerprint data by using the first touch information, and classify the first fingerprint data, based on the hand. ### Claim 3 (depends on 1) The electronic device of claim 1, wherein the processor is configured to distinguish a normal touch and a tip touch, based on a curvature included in the first touch information. ### Claim 4 (depends on 1) The electronic device of claim 1, wherein the processor is configured to classify fingerprint data regarding the same finger into multiple groups, based on an area included in the first touch information. ### Claim 5 An electronic device comprising: a display comprising a touch sensor; a fingerprint sensor configured to acquire fingerprint data through at least a partial region of a display region of the display; and a processor, wherein the processor is configured to: store information on a touch input occurring for fingerprint registration; and determine, using the information on the touch input, a candidate group for checking of matching of a fingerprint for fingerprint authentication. ### Claim 6 (depends on 5) The electronic device of claim 5, wherein the processor is configured to classify the fingerprint data acquired for the fingerprint registration, based on the information on the touch input. ### Claim 7 (depends on 5) The electronic device of claim 5, wherein the processor is configured to: acquire a first fingerprint data for the fingerprint authentication; and determine another candidate group when there is no fingerprint data matching the first fingerprint data in the candidate group. ### Claim 8 An electronic device comprising: a display comprising a touch sensor in a display region for displaying a content; a fingerprint sensor disposed in at least a partial region of the display region; and a processor, wherein the processor is configured to: acquire one or more user inputs through the at least partial region of the display region, the acquiring operation comprising an operation of acquiring one or more fingerprint data corresponding to the one or more user inputs and one or more touch information corresponding to the user inputs by using the fingerprint sensor; and register the one or more touch information and the one or more fingerprint data as one or more pieces of fingerprint information corresponding to the user. ### Claim 9 (depends on 8) The electronic device of claim 8, wherein the processor is configured to acquire a user input for performing authentication of the user through the at least partial region of the display region, the acquiring of the user input comprising acquiring fingerprint data corresponding to the user input and touch information corresponding to the user input. ### Claim 10 (depends on 9) The electronic device of claim 9, wherein the processor is configured to: select at least one piece of corresponding touch information, which corresponds to the acquired touch information, from among the one or more pieces of corresponding touch information, at least based on the acquired touch information; and designate at least one piece of fingerprint information, corresponding to the fingerprint data, among the one or more pieces of fingerprint information, as at least one candidate fingerprint for authentication of the user. ### Claim 11 (depends on 8) The electronic device of claim 8, wherein the touch information comprises at least one among an area, a major axis length, a minor axis length, an orientation, an angle, a curvature, a pressure, and a position of the user input. ### Claim 12 (depends on 8) The electronic device of claim 8, wherein the processor is configured to store the one or more pieces of fingerprint information in a security memory having a security level different from that of a normal memory. ### Claim 13 (depends on 8) The electronic device of claim 8, wherein the processor is configured to acquire the one or more touch information through a first region, in which the fingerprint sensor is disposed, and a second region near the first region. ### Claim at position 14 14-15. (canceled) ### Claim 16 (depends on 10) The electronic device of claim 10, wherein the processor is configured to compare the at least one candidate fingerprint and the fingerprint data. ### Claim 17 (depends on 8) The electronic device of claim 8, wherein the display includes a region through which light can pass, and wherein the processor is configured to acquire the fingerprint data through the region through which light can pass. ### Claim 18 (depends on 8) The electronic device of claim 8, wherein the fingerprint sensor is disposed in an active region of the display. ### Claim 19 (depends on 8) The electronic device of claim 8, wherein the processor is configured to store the at least one touch information as attribute information of the at least one fingerprint data. ### Claim 20 (depends on 13) The electronic device of claim 13, wherein the processor is configured to compare at least one among an area, a position, a width, a curvature, an orientation, and an angle with touch information of a user input acquired for authentication.