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WO2010126190A1 - Terminal portable équipé d'une caméra et procédé de sécurité consistant à utiliser ce terminal portable - Google Patents

Terminal portable équipé d'une caméra et procédé de sécurité consistant à utiliser ce terminal portable Download PDF

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Publication number
WO2010126190A1
WO2010126190A1 PCT/KR2009/002323 KR2009002323W WO2010126190A1 WO 2010126190 A1 WO2010126190 A1 WO 2010126190A1 KR 2009002323 W KR2009002323 W KR 2009002323W WO 2010126190 A1 WO2010126190 A1 WO 2010126190A1
Authority
WO
WIPO (PCT)
Prior art keywords
fingerprint
camera
image
fingerprint recognition
fingerprint image
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2009/002323
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English (en)
Korean (ko)
Inventor
김광태
김형표
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kyungpook National University Hospital
Industry Academic Cooperation Foundation of KNU
Original Assignee
Kyungpook National University Hospital
Industry Academic Cooperation Foundation of KNU
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kyungpook National University Hospital, Industry Academic Cooperation Foundation of KNU filed Critical Kyungpook National University Hospital
Publication of WO2010126190A1 publication Critical patent/WO2010126190A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/66—Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
    • H04M1/667—Preventing unauthorised calls from a telephone set
    • H04M1/67—Preventing unauthorised calls from a telephone set by electronic means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/66—Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31—User authentication
    • G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/1347—Preprocessing; Feature extraction
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/30—Individual registration on entry or exit not involving the use of a pass
    • G07C9/32—Individual registration on entry or exit not involving the use of a pass in combination with an identity check
    • G07C9/37—Individual registration on entry or exit not involving the use of a pass in combination with an identity check using biometric data, e.g. fingerprints, iris scans or voice recognition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/12—Details of telephonic subscriber devices including a sensor for measuring a physical value, e.g. temperature or motion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/52—Details of telephonic subscriber devices including functional features of a camera

Definitions

  • the present invention relates to a portable terminal such as a mobile phone equipped with a camera, and more particularly, a portable device that recognizes a fingerprint without having a separate fingerprint recognition device by using the mounted camera and thereby enables authentication or use of the mobile phone. It relates to a terminal and a security method using the same.
  • a mobile phone equipped with a camera (hereinafter referred to as a camera phone) is a technology that expresses individual personality well by voice and text message while converging with the needs of young people who want to image through photography often. It can be seen as the most successful type of trend.
  • Mobile phones which have great advantages in portability and convenience, contain the most personal information according to the above-mentioned various functions, and financial services using mobile phones such as mobile banking are also provided, which increases the risk of personal information leakage due to loss and theft.
  • financial services using mobile phones such as mobile banking are also provided, which increases the risk of personal information leakage due to loss and theft.
  • the importance of security is increasing day by day.
  • An object of the present invention is to provide a security method.
  • the present invention provides a portable terminal equipped with a camera, a fingerprint recognition unit for recognizing a user's finger fingerprint, the camera for capturing a fingerprint image of the fingerprint recognition unit, and through the camera An image matching section for performing image matching with the turned on fingerprint image and the already registered fingerprint image; When the image is matched in the image matching unit, the portable terminal is used for authentication or unlocking of the portable terminal, and otherwise, a user lock function is provided.
  • the fingerprint recognition unit is formed on the upper portion of the camera at a predetermined interval to place the user's finger, and the fingerprint recognition window open in the normal camera shooting mode, the fingerprint recognition mode in the fingerprint recognition mode Closing the recognition window is characterized in that it comprises a fingerprint recognition window opening and closing portion for controlling the opening and closing of the fingerprint recognition window.
  • the fingerprint recognition window is characterized in that the tempered glass.
  • the fingerprint recognition window is characterized in that the optical film is formed to prevent light from being dispersed and improve the light condensation.
  • the hologram layer may be formed on a lower surface of the fingerprint recognition window facing the camera.
  • a flash is formed on the camera.
  • a second memory unit for temporarily storing the fingerprint image captured by the camera to display on the display window, and a first memory for converting the fingerprint image captured by the camera into a compression format and compressing and storing the fingerprint image at a predetermined ratio.
  • a third memory unit for storing a fingerprint image of a person having a legitimate authority for the use of the portable terminal.
  • the fingerprint image stored in the third memory unit may be deleted or added.
  • the feature extraction of the stored fingerprint image of the first memory unit may be a method using a ridge or a method using a feature point.
  • a user selects a fingerprint recognition mode, capturing a fingerprint image of the user through the camera, and a fingerprint image turned on through the camera. Performing image matching with an already registered fingerprint image; unlocking the portable terminal if the image is matched in the matching step; otherwise, setting the portable terminal lock function. to provide.
  • a fingerprint recognition window installed on the top of the camera is closed and a user's finger is placed on the closed fingerprint recognition window to enable fingerprint recognition.
  • the method may further include converting a fingerprint image captured by the camera through a first memory unit into a compressed format, compressing the fingerprint image at a predetermined ratio, and storing the fingerprint image captured by the camera through the second memory unit before the storage. Temporarily storing for display.
  • the method may further include extracting a feature of the captured fingerprint image, wherein the fingerprint image feature extraction is characterized by using any one of a method using a ridge of a fingerprint or a method using a feature point of a fingerprint.
  • the method may further include deleting the already registered fingerprint image or adding a new fingerprint image.
  • the image matching step may include comparing and determining a fingerprint image registered in a one-to-one form and a captured fingerprint image, and comparing and determining a plurality of registered fingerprint images and the captured fingerprint image in a one-to-many form. It is characterized by.
  • the mobile phone locking function may be individually set according to each function according to a user selection.
  • the user authentication process may be replaced with the fingerprint matching process without inputting the ID and password.
  • the portable terminal according to the present invention can perform fingerprint recognition using a mounted camera without having a separate fingerprint recognition device, the portable terminal can be provided with an inexpensive fingerprint recognition portable terminal without additional cost.
  • FIG. 1 is a view showing a fingerprint recognition camera phone according to a preferred embodiment of the present invention.
  • FIG. 2 and 3 are views illustrating a fingerprint recognition unit in the camera phone of FIG. 1.
  • FIG. 4 is a flowchart illustrating a fingerprint recognition process using the fingerprint recognition camera phone of FIG. 1.
  • 5 is a diagram showing the morphological features of the fingerprint.
  • 6A to 6F illustrate a process of extracting features of a fingerprint image using ridges.
  • FIG. 7 is a diagram illustrating a process of extracting features of a fingerprint image using feature points.
  • FIG. 8 is a diagram illustrating a fingerprint matching process characterized by a flow of wires.
  • FIG. 9 is a diagram illustrating a fingerprint matching process characterized by feature points.
  • FIG. 1 is a view showing a fingerprint recognition camera phone 170 according to a preferred embodiment of the present invention.
  • the camera phone 170 includes a fingerprint recognition unit 160 for recognizing a user's fingerprint, and a camera for capturing a user fingerprint image of the fingerprint recognition unit 160.
  • the mobile phone unit 102 for transmitting and receiving the voice call or the fingerprint image unique to the mobile phone, the display device 106 for displaying the fingerprint image and the text, and the fingerprint image on the display unit 106.
  • an interface unit 104 for displaying characters.
  • the camera unit 100 includes a lens unit 108, an image sensor 110, an analog digital converter (ADC) 112, a digital signal processor (DSP) 114, an image compressor 116, and a first memory unit ( 118), and a camera control unit 120.
  • ADC analog digital converter
  • DSP digital signal processor
  • the fingerprint image of the user is provided to the image sensor 110 through the lens unit 108.
  • the lens unit 108 may include a zoom lens, a focus lens, an iris, and the like. have.
  • the image sensor 110 converts and outputs an optical signal of a fingerprint image passing through the lens unit 108 into an electrical signal (imaging image signal), and has functions such as exposure, gamma, gain adjustment, white balance, and color matrix of the camera. Do this.
  • the image sensor 110 may be a CMOS (Complementary Metal-Oxide-Semiconductor) sensor or a CCD (Charge Coupled Device) sensor, etc., and uses a high-pixel sensor of more than 8 million pixels to increase the accuracy of fingerprint recognition It is preferable.
  • CMOS Complementary Metal-Oxide-Semiconductor
  • CCD Charge Coupled Device
  • the camera controller 120 is implemented as a central processing unit (CPU) and controls the overall operation of the camera unit 100.
  • CPU central processing unit
  • the second memory unit 124 is a plurality of buffers for temporarily storing a fingerprint image input through the lens unit 108 and may be generally implemented as a dynamic random access memory (DRAM).
  • DRAM dynamic random access memory
  • the image signal output from the DSP 114 is output to the second memory unit 124 through the camera controller 120 for a predetermined time.
  • the fingerprint image is temporarily stored as an image frame having an interval, and then the display unit 150 passes through a path of the camera controller 120, the DSP 114, the multiplexer (MUX) 144, and the driver 148 of the display device 106. Displayed in turn on the image.
  • the fingerprint image entering the lens unit 108 through the display unit 150 can be confirmed by the user, and the non-explained portions 146, 138, and 142 are COMP terminals, OSD (D / A), and encoders, respectively.
  • the ADC 112 converts the gain-adjusted fingerprint image signal from the image sensor 110 into a digital signal and outputs the digital signal to the DSP 114.
  • the DSP 114 enables high-speed processing of the digitally converted fingerprint image signal, and sends the image signal to the image compression unit 116 under the control of the mobile phone controller 128.
  • the image compressor 116 compresses the digitally converted fingerprint image signal provided from the DSP 114 under the control of the camera controller 120. (JPEG format, etc.), the data is compressed at a predetermined rate and stored in the first memory unit 118.
  • the first memory unit 118 is implemented as a flash memory as a memory for storing the compressed image output from the image compression unit 116, and the amount of the captured image is adjusted according to the memory capacity.
  • the compressed fingerprint image stored in the first memory unit 118 is decompressed and provided to the DSP 114 under the control of the camera controller 120.
  • signals corresponding to various keys input from the key input unit 132 of the mobile phone unit 102 are transmitted under the control of the mobile phone control unit 128. If so, various operations are performed accordingly.
  • the non-explained portions 126, 130, and 136 are RF units, audio units, and interfaces, respectively.
  • the camera control unit 120 and the mobile phone control unit 128 is shown as being configured separately, it can be implemented as a single chip using a single CPU.
  • the third memory unit 134 is not only a program for performing various operations for implementing a mobile phone function, but also a person who has a legitimate authority for using a mobile phone (for example, a mobile phone owner or a mobile phone owner is authorized to use a mobile phone). I) to store fingerprint information.
  • the fingerprint information of the owner of the mobile phone is stored in the basic format, but the fingerprint information of the person authorized to use the mobile phone from the owner of the mobile phone can be deleted, changed, and inputted so that the information can be changed.
  • FIG. 2 and 3 are views illustrating the fingerprint recognition unit 160 in the camera phone 170 of FIG. 1.
  • the fingerprint recognition unit 160 is formed on the upper portion of the camera unit 170 at a predetermined interval to recognize the user's fingerprint is a fingerprint recognition window for placing the user's thumb
  • the fingerprint recognition window 161 controls opening and closing of the fingerprint recognition window 161 by opening the fingerprint recognition window 161 in the normal camera photographing mode and closing the fingerprint recognition window 161 in the fingerprint recognition mode.
  • Opening and closing portion 162 is provided.
  • opening and closing of the fingerprint recognition window 161 may be implemented by an electric drive method or a mechanical drive method using a small server motor (not shown) through the battery 138 of the mobile phone.
  • the fingerprint recognition window 161 is a transparent glass that can reflect light is preferably tempered glass in consideration of durability.
  • Unexplained part 111 is a flash.
  • An optical film (not shown) may be applied or deposited on the inner surface of the fingerprint recognition window facing the camera unit 170 to prevent the light from being dispersed and improve light condensation.
  • a polarizing film or the like may be used as the optical film, and when the fingerprint is recognized through the camera unit 170 using the reflection of light, the fingerprint recognition rate may be improved without departing from the influence of the external environment such as external lighting.
  • FIG. 2 is a view showing a case where a fingerprint recognition window 161 is opened for a conventional camera shooting
  • Figure 3 is a fingerprint recognition window 161 is closed and the user's thumb placed on the closed fingerprint recognition window 161 fingerprint recognition It is a figure which shows the state which enabled this.
  • FIG. 4 is a flowchart illustrating a fingerprint recognition process using the fingerprint recognition camera phone 170 of FIG. 1.
  • the fingerprint recognition window 161 is closed (S201), and the user places a finger fingerprint on the fingerprint recognition window 161 to display a fingerprint image. It is input (S202).
  • the fingerprint image input through the lens unit 108 is temporarily stored in the second memory unit 124 (S203), and the user sees the temporarily stored fingerprint image displayed on the display unit LCD 150 (S205).
  • the camera shutter S204.
  • the fingerprint image is stored in the first memory unit 118, and a fingerprint image acquisition process is performed (S206).
  • the camera unit 100 acquires an image reflected from the fingerprint of the finger placed on the fingerprint recognition window 161 through the lens unit 108.
  • a hologram is formed below the fingerprint recognition window 161 to obtain an image by projecting the image reflected from the fingerprint of the finger placed on the fingerprint recognition window 161 onto the hologram layer.
  • the fingerprint recognition window 161 may serve as a prism, and the fingerprint recognition window 161 may be implemented using a prism method that acquires a fingerprint by using total reflection of light incident on the prism.
  • the light source may use an external light source such as sunlight or an internal light source such as an LED may be added to the inside as necessary.
  • An internal light source such as the LED may use the flash 111.
  • the camera controller 120 extracts a feature of the stored fingerprint image of the first memory unit 124.
  • the fingerprint image feature extraction may be a method using a ridge and a method using a feature point.
  • the recognition method using the fusion the flow degree according to the direction of the ridge is numerically used, and in the recognition method using the feature point, the end point and the branch point are used as the feature. This will be described with reference to FIGS. 5 to 7.
  • 5 is a diagram showing the morphological features of the fingerprint.
  • the flow of various types of lines appearing in the fingerprint is called a ridge, and the space between the ridges and the ridges is called valleys, furrows.
  • the various shapes between the ridges form various feature points (Minutiae), in which the ridge flows smoothly and breaks, called the ending point. It is called).
  • 6A to 6F illustrate a process of extracting features of a fingerprint image using ridges.
  • the point with the largest curvature is found in the image. This point is referred to as the center point and is represented as shown in FIG. 6B.
  • a large area for calculating the flow of the ridge is set as shown in FIG. 6D, and the large area is divided into small areas as shown in FIG. 6C by dividing the large area by a predetermined distance and a direction interval.
  • the flow rate of the ridge is calculated in several predetermined directions as shown in FIG. 6E, and the size is recorded for each small area in the form as shown in FIG. 6F and used as a feature.
  • FIG. 7 is a diagram illustrating a process of extracting features of a fingerprint image using feature points.
  • the process of improving the quality of the input fingerprint image suitable for ridge extraction the process of finding the direction component of each ridge, and distinguishing the ridges and the valleys to extract the evolving process and finally the feature points
  • the thickness of each ridge is divided into a process of thinning it into a line having a pixel thickness of one pixel.
  • the fingerprint image is subjected to a fingerprint matching process of measuring the similarity between the fingerprint image of the person having the authority to use the mobile phone databased in the third memory unit and the two fingerprints.
  • the fingerprint matching process will be described with reference to FIGS. 8 to 10 (S208).
  • FIG. 8 is a diagram illustrating a fingerprint matching process characterized by a stream of wires.
  • the fingerprint feature image information previously stored in the third memory unit 134 and the first memory unit 134 may be used.
  • the difference of the fingerprint feature image information extracted from the stored fingerprint image is compared and represented as a matching score.
  • FIG. 9 is a diagram illustrating a fingerprint matching process characterized by feature points, and extracted from fingerprint feature image information (here, stored feature point information) stored in the third memory unit 134 and the fingerprint image stored in the first memory unit 134.
  • fingerprint feature image information here, stored feature point information
  • the degree of coincidence of each feature point of the fingerprint feature image information is calculated as a score.
  • FAR False Acceptance Ratio
  • FRR False Rejection Ratio
  • the fingerprint recognition performance can be improved by rejecting the determination of this range.
  • a person who has a legitimate authority for using a mobile phone registered in the third memory unit compares the registered fingerprint information with the input fingerprint information in a one-to-one form. The case of judgment was explained.
  • the fingerprint information of a person who has a legitimate authority for the use of the mobile phone in the third memory unit 134 is newly stored or an existing delegation relationship is established. When it is finished, it can be deleted or changed, and when there are a plurality of authorized persons, fingerprint information with a plurality of legitimate authorities is stored.
  • the fingerprint information of the user is input through the fingerprint recognition unit 160 and the registered fingerprint information of a plurality of legitimate persons stored in the third memory unit 134 is compared with one-to-many.
  • This may be implemented in a form in which a plurality of one-to-one comparisons are sequentially made.
  • the mobile phone lock function is released and enabled (S209), otherwise, a lock function is set to the important use function (S210).
  • the mobile phone lock function may be individually set for each function, such as personal information that the user considers important, text message information, mobile banking related authentication information, call history information, and the like.
  • the fingerprint matching process may be replaced with the fingerprint matching process without going through the user authentication process through the ID and password as well as the mobile phone lock function.
  • the present invention is not limited thereto and may be widely applied to a portable terminal device such as a PDA and a game machine equipped with a high pixel camera capable of fingerprint recognition.
  • the present invention can be very widely used as a security device for a portable terminal with a camera, it is considered that the present invention can be widely used as a security device for an expensive portable terminal such as a game machine and a digital camera as well as a camera phone which is widely used.

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  • Computer Security & Cryptography (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • General Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
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  • Computer Vision & Pattern Recognition (AREA)
  • Computer Networks & Wireless Communication (AREA)
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  • Image Input (AREA)

Abstract

La présente invention concerne la reconnaissance d'empreintes digitales au moyen d'un terminal portable équipé d'une caméra et un procédé de sécurité consistant à utiliser le terminal. A cette fin, l'invention concerne un terminal portable équipé d'une caméra, lequel terminal comprend: une unité de reconnaissance d'empreintes digitales pour reconnaître les empreintes digitales des doigts d'un utilisateur; la caméra pour capturer les images d'empreintes digitales de l'unité de reconnaissance d'empreintes digitales; et une unité d'appariement d'images pour exécuter un processus d'appariement d'images entre les images d'empreintes digitales capturées au moyen de la caméra et les images d'empreintes digitales préalablement enregistrées, une fonction d'authentification pour l'utilisation du terminal portable ou une fonction de déverrouillage est activée si les images sont appariées dans l'unité d'appariement d'images, et une fonction de verrouillage utilisateur est activée si les images ne sont pas appariées.
PCT/KR2009/002323 2009-04-30 2009-05-01 Terminal portable équipé d'une caméra et procédé de sécurité consistant à utiliser ce terminal portable Ceased WO2010126190A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020090038480A KR101053197B1 (ko) 2009-04-30 2009-04-30 카메라가 장착된 휴대용 단말기 및 이를 이용한 보안 방법
KR10-2009-0038480 2009-04-30

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WO2010126190A1 true WO2010126190A1 (fr) 2010-11-04

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WO2015170797A1 (fr) * 2014-05-09 2015-11-12 Lg Electronics Inc. Dispositif d'affichage et son procédé de commande
CN106790808A (zh) * 2016-12-22 2017-05-31 上海摩软通讯技术有限公司 一种具有摄像模组的终端及其指纹识别方法
CN110490038A (zh) * 2019-05-30 2019-11-22 福建知鱼科技有限公司 一种智能屏人像采集系统
CN110930154A (zh) * 2018-09-19 2020-03-27 珠海格力电器股份有限公司 身份验证方法和装置

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WO2016049655A1 (fr) 2014-09-26 2016-03-31 Shenzhen Huiding Technology Co., Ltd. Lecteur d'empreintes digitales
KR20190051409A (ko) * 2017-11-07 2019-05-15 주식회사 엘지화학 시트 및 광학식 지문 인식 장치
CN108681716B (zh) * 2018-05-18 2020-10-13 北京小米移动软件有限公司 指纹解锁方法及装置
CN108595935B (zh) * 2018-05-18 2021-08-31 北京小米移动软件有限公司 指纹解锁方法及装置
CN108334769B (zh) * 2018-05-18 2021-08-31 北京小米移动软件有限公司 指纹解锁方法及装置

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KR20060131544A (ko) * 2005-06-16 2006-12-20 엘지전자 주식회사 지문인식 입력장치를 구비하는 휴대용 정보 단말기 및그의 제어방법
KR20070071848A (ko) * 2005-12-30 2007-07-04 브이케이 주식회사 카메라가 구비된 이동통신 단말기의 보안 방법
KR20080035133A (ko) * 2006-10-18 2008-04-23 삼성전자주식회사 잠금 장치를 구비한 휴대용 단말기의 기능실행 방법

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WO2015170797A1 (fr) * 2014-05-09 2015-11-12 Lg Electronics Inc. Dispositif d'affichage et son procédé de commande
KR20150128344A (ko) * 2014-05-09 2015-11-18 엘지전자 주식회사 디스플레이 장치 및 제어 방법
US9442590B2 (en) 2014-05-09 2016-09-13 Lg Electronics Inc. Display device and method for controlling the same
KR102158696B1 (ko) 2014-05-09 2020-09-22 엘지전자 주식회사 디스플레이 장치 및 제어 방법
CN106790808A (zh) * 2016-12-22 2017-05-31 上海摩软通讯技术有限公司 一种具有摄像模组的终端及其指纹识别方法
CN110930154A (zh) * 2018-09-19 2020-03-27 珠海格力电器股份有限公司 身份验证方法和装置
CN110490038A (zh) * 2019-05-30 2019-11-22 福建知鱼科技有限公司 一种智能屏人像采集系统

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