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公开(公告)号：WO2021211036A1
公开(公告)日：2021-10-21
申请号：PCT/SE2021/050326
申请日：2021-04-09
申请人： FINGERPRINT CARDS AB
发明人： SÖDERBERG, Per , NYGREN, Daniel
摘要： The present disclosure relates to a method of a fingerprint sensing system (110) arranged in a smartcard (100) configured to acquire fingerprint data of a user with a fingerprint sensor (102) for biometric authentication, and a fingerprint sensing system performing the method. In an aspect, a method of a fingerprint sensing system (110) arranged in a smartcard (100) is provided, the fingerprint sensing system (110) being configured to acquire fingerprint data of a user with a fingerprint sensor (102) for biometric authentication. The method comprises detecting (S501) a finger of the user contacting a sensing area of the fingerprint sensor (102), initializing (S502) the fingerprint sensor (102) with a predetermined sensor setting, acquiring (S503), for the finger being detected to contact the sensing area of the fingerprint sensor (102), a calibration sub-image which is confined in size to a subarea of the sensing area, determining (S504) whether or not a quality criterion is met for the acquired calibration sub-image, and if so acquiring (S505) one or more further sub-images confined in size to a subarea of the sensing area, and combining (S506) a plurality of the acquired further sub-images into a representation of a fingerprint of the user, wherein the further sub-images are acquired during a time period when the smartcard (100) is not engaged in waiting time extension, WTX, request signalling with a card reader (200) with which the smartcard (100) performs contactless communication.
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公开(公告)号：WO2021201745A1
公开(公告)日：2021-10-07
申请号：PCT/SE2021/050249
申请日：2021-03-23
申请人： FINGERPRINT CARDS AB
发明人： LARSSON, Andreas , CARLING, David
摘要： A fingerprint sensing system comprising a plurality of conductive selection lines; a plurality of conductive read-out lines crossing the selection lines; selection circuitry controllable to provide a selection signal on at least one selected selection line in the plurality of selection lines; a plurality of pixel elements formed at intersections between the selection lines and the read-out lines; read-out circuitry coupled to each read-out line in the plurality of read- out lines, the read-out circuitry being configured to acquire a read-out signal via a read-out line connected to a selected pixel element, and calibration circuitry having an input for receiving a calibration input signal and an output for providing a calibration output signal, the calibration output signal being formed through interaction between the calibration input signal and the calibration circuitry.
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公开(公告)号：WO2021126058A1
公开(公告)日：2021-06-24
申请号：PCT/SE2020/051215
申请日：2020-12-15
申请人： FINGERPRINT CARDS AB
发明人： MARTINSSON, Hans , ÖSTLUND, Petter , LIU, Jun
摘要： A biometric imaging device (100) characterized by comprising: an image sensor (102) comprising a plurality of pixels (104) forming a photodetector pixel array; a first aperture layer (106) comprising openings (108) in locations aligned with pixels of the pixel array; a first filter layer comprising a transparent material (110) configured to block light within a predetermined first wavelength range; a transparent spacer layer (112) arranged on the first filter layer, wherein the transparent spacer layer is configured to absorb light within a predetermined second wavelength range; and an array of microlenses (114) arranged on the transparent spacer layer, wherein the microlenses are aligned with the openings in the aperture layer.
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公开(公告)号：WO2021112742A1
公开(公告)日：2021-06-10
申请号：PCT/SE2020/051126
申请日：2020-11-25
申请人： FINGERPRINT CARDS AB
发明人： LARSSON, Andreas , RIEDIJK, Frank
摘要： A fingerprint sensing system comprising a plurality of conductive selection lines; a plurality of conductive read-out lines crossing the selection lines; selection circuitry controllable to provide a selection signal on at least one selected selection line in the plurality of selection lines; a plurality of pixel elements formed at intersections between the selection lines and the read-out lines; a reference signal source configured to provide a reference signal; and read-out circuitry coupled to each read-out line in the plurality of read-out lines and to the reference signal source, the read-out circuitry being configured to acquire a read-out signal via a read-out line connected to a selected pixel element, when the selected pixel element provides the sensing signal; acquire a reference signal from the reference signal source; form a corrected read-out signal for the selected pixel element based on the read-out signal and the reference signal; and provide corrected read-out signals.
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公开(公告)号：WO2020162805A1
公开(公告)日：2020-08-13
申请号：PCT/SE2019/051265
申请日：2019-12-11
申请人： FINGERPRINT CARDS AB
发明人： MARTINSSON, Hans
摘要： The present invention relates to a method of configuring an optical biometric imaging device comprising a photodetector pixel array, the method comprising: acquiring a biometric image of a biometric object using a first binning setting for binning of detection signals from subarrays of the photodetector pixels into a single pixel value;determining a measure indicative of the feature resolution of the biometric image; and determining, when the measure indicates that the feature resolution is below a feature resolution threshold, a second binning setting adapted to provide a higher feature resolution compared to the feature resolution of the biometric image.
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公开(公告)号：WO2020085972A1
公开(公告)日：2020-04-30
申请号：PCT/SE2019/050982
申请日：2019-10-08
申请人： FINGERPRINT CARDS AB
发明人： NILSSON, René
摘要： An optical biometric imaging arrangement (100) configured to be arranged under an at least partially transparent display panel (102), and configured to capture an image of an object located on an opposite side of the display panel, comprising:an image sensor (108) comprising a photodetector pixel array (109);an array of light redirecting elements (118;802,803;206), each light redirecting element is configured to redirect light onto the pixel array, a color filter (111) arranged between the array of light redirecting elements and the image sensor, the color filter comprising at least two color filter arrays of respective color filter elements (115, 117) being optically transmissive, a first color array comprising first color filter elements and a second color array comprising second color filter elements, the color filter arrays are arranged such that each photodetector pixelis at least partly covered by at least a first and a second color filter element.
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7.发明申请
公开(公告)号：WO2019235988A1
公开(公告)日：2019-12-12
申请号：PCT/SE2019/050485
申请日：2019-05-27
申请人： FINGERPRINT CARDS AB
发明人： LUNDAHL, Karl , NILSSON, Hanna , BENSON, Adam , GRIP, Martin
IPC分类号： G06K9/24 , A61B5/1172
摘要： An acoustic biometric imaging system (3) comprising:a transparent device member (11) having a first face (12a) to be touched by a finger surface of a user, and a second face (12b) opposite the first face, the transparent device member having a first acoustic impedance (Z 1 ); a first ultrasonic transducer (5) acoustically coupled to the second face (12b) of the transparent device member(11)in a first transducer region(5)for receiving acoustic signals (S In ) conducted by the transparent device member (11) from a finger touch region (14) laterally spaced apart from the first transducer region (5), the first ultrasonic transducer(15)having a second acoustic impedance (Z 2 ); and an opaque masking layer (18) arranged between the transparent device member (11) and the first ultrasonic transducer(15)in the first transducer region, the opaque masking layer (18) having a third acoustic impedance (Z 3 ) between the first acoustic impedance (Z 1 ) and the second acoustic impedance(Z 2 ).
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公开(公告)号：WO2019160478A1
公开(公告)日：2019-08-22
申请号：PCT/SE2019/050113
申请日：2019-02-11
申请人： FINGERPRINT CARDS AB
摘要： The present disclosure relates to a method of authenticating a user by means of an electronic device comprising a user output interface. The present disclosure also relates to a corresponding electronic device and to a computer program product.
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公开(公告)号：WO2019160472A1
公开(公告)日：2019-08-22
申请号：PCT/SE2019/050107
申请日：2019-02-08
申请人： FINGERPRINT CARDS AB
发明人： GEHRMANN, Christian , POPE, Steven
摘要： The invention relates to methods and devices for updating biometric template protection keys. In an aspect of the invention, a method performed by a network node (300) is provided of updating at least one stored feature transformation key with which a set of biometric data of a user (200) initially has been transformed at a first client device (100) at which the biometric data of the user was captured and enrolled with the network node (300), which set of transformed biometric data of the user is stored at a biometric data verification node (400) without the biometric data verification node (400) having access to the feature transformation key. The method comprises determining (S302) that said at least one stored transformation key is to be updated, generating (S303) random data, computing (S304) at least one new feature transformation key based on said random data, replacing (S305) the at least one stored feature transformation key with the computed at least one new feature transformation key, and transmitting (S306) the generated random data to the biometric data verification node (400), wherein the biometric data verification node (400) uses the generated random data to update the at least one set of transformed biometric data which initially was transformed using the replaced at least one feature transformation key.
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10.发明申请
公开(公告)号：WO2019125273A1
公开(公告)日：2019-06-27
申请号：PCT/SE2018/051289
申请日：2018-12-11
申请人： FINGERPRINT CARDS AB
发明人： GRIP, Martin , GHAVANINI, Farzan
摘要： There is provided a display arrangement comprising an ultrasonic biometric sensing device. The display arrangement comprises: a cover plate (103) having a sensing surface configured to be touched by a finger; a display panel (102) comprising a plurality of sub-layers; a plurality of ultrasonic transducers (106) arranged along the periphery of the display arrangement and outside of an active display area of the display arrangement, each ultrasonic transducer comprising an top and bottom electrode;and ultrasonic transducer control circuitry (114) to control the ultrasonic transducers to determine properties of an object in contact with the sensing surface. One of the sub-layers in the display panel comprises a protruding portion (206) extending outside of an area of any other sub-layer located between the sub- layer comprising the protruding portion and the cover plate, and the plurality of ultrasonic transducers are arranged on the protruding portion between the protruding portion and the cover plate.
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