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1.发明授权公开(公告)号：US11580775B2
公开(公告)日：2023-02-14
申请号：US16755904
申请日：2018-10-05
申请人： Fingerprint Cards AB
发明人： Kenneth Jonsson , Alaa Halawani
IPC分类号： G06K9/62 , G06N20/10 , G06N3/08 , G06V10/44 , G06V10/764 , G06V10/774 , G06V40/12 , G06V40/13 , G06V40/40
摘要： The present disclosure relates to a method performed in a fingerprint analysis system for facilitating differentiating between a live finger and a spoof finger. The method comprises acquiring a plurality of time-sequences of images, each of the time-sequences showing a respective finger as it engages a detection surface of a fingerprint sensor. Each of the time-sequences comprises at least a first image and a last image showing a fingerprint topography of the finger, wherein the respective fingers of some of the time-sequences are known to be live fingers and the respective fingers of some other of the time-sequences are known to be spoof fingers. The method also comprises training a machine learning algorithm on the plurality of time-sequences to produce a model of the machine learning algorithm for differentiating between a live finger and a spoof finger.
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公开(公告)号：USD972545S1
公开(公告)日：2022-12-13
申请号：US29754922
申请日：2020-10-15
申请人： Fingerprint Cards AB
设计人： Sofia Runesson , Mats Slottner
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公开(公告)号：US11501554B2
公开(公告)日：2022-11-15
申请号：US17467633
申请日：2021-09-07
申请人： Fingerprint Cards AB
发明人： Frank Riedijk , David Carling , Hans Thörnblom , Wouter Brevet
摘要： A fingerprint sensor comprising a plurality of electrically conductive sensing structures arranged in a sensing plane for capacitively sensing a fingerprint of a finger; and measurement circuitry coupled to the plurality of electrically conductive sensing structures for providing measurement signals indicative of a capacitive coupling between each sensing structure in the plurality of electrically conductive sensing structures and the finger, wherein the measurement circuitry is arranged to: provide, using a first measurement circuitry configuration, a first set of measurement signals from a first set of sensing structures; and provide, using a second measurement circuitry configuration different from the first measurement circuitry configuration, a second set of measurement signals from a second set of sensing structures.
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公开(公告)号：US11501553B2
公开(公告)日：2022-11-15
申请号：US16763671
申请日：2018-11-15
申请人： Fingerprint Cards AB
发明人： Olivier Lignier
摘要： A method of manufacturing a fingerprint sensor component having a component outline for integration into an electronic device, the method comprising the steps of: providing a fingerprint sensor package having a sensing surface, a connection surface opposite the sensing surface, and sides connecting the sensing surface and the connection surface, the connection surface having connectors for allowing electrical connection of the fingerprint sensor component to the electronic device; arranging the fingerprint sensor package on a temporary carrier with the connection surface facing the temporary carrier; and adding material at least around the sides of the fingerprint sensor package, while leaving the connection surface of the fingerprint sensor package uncovered.
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公开(公告)号：US11449589B2
公开(公告)日：2022-09-20
申请号：US16492563
申请日：2018-03-08
申请人： Fingerprint Cards AB
发明人： Christian Gehrmann
摘要： The invention relates to methods and devices for updating encrypted biometric data of a user at a trusted network node. In an aspect of the invention a method performed by a first client device is provided of updating encrypted biometric data of a user, the encrypted biometric data to be updated having been previously captured by the first client device and registered at a trusted network node. The invention relates to methods and devices for updating encrypted biometric data of a user at a trusted network node. In an aspect of the invention a method performed by a first client device is provided of updating encrypted biometric data of a user, the encrypted biometric data to be updated having been previously captured by the first client device and registered at a trusted network node.
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公开(公告)号：US11328166B2
公开(公告)日：2022-05-10
申请号：US16968910
申请日：2019-02-11
申请人： Fingerprint Cards AB
发明人： Carsten Juncker , Klaus S. Andersen
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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7.发明申请公开(公告)号：US20220130167A1
公开(公告)日：2022-04-28
申请号：US17431223
申请日：2019-12-17
申请人： Fingerprint Cards AB
发明人： René NILSSON , Hans MARTINSSON , Arne HUSTH
摘要： Method for determining image reconstruction parameters in an optical biometric imaging device comprising a plurality of microlenses forming a microlens array and an image sensor arranged to receive light having passed through the microlenses, the method comprising: by the image sensor, capturing a plurality of sub-images together representing an image of a biometric object in contact with a sensing surface of the biometric imaging device, each sub-image corresponding to a respective microlens; and determining a demagnification factor based on at least a subset of the plurality of sub-images.
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公开(公告)号：US11315357B2
公开(公告)日：2022-04-26
申请号：US16993386
申请日：2020-08-14
申请人： Fingerprint Cards AB
摘要： The present disclosure relates to methods and devices for fingerprint recognition. In an aspect, a method of a fingerprint sensing system of extracting at least one fingerprint descriptor from an image captured by a fingerprint sensor for enrolment in the fingerprint sensing system is provided. The method comprises capturing images of a finger contacting the fingerprint sensor, detecting at least one fingerprint feature in each captured image, extracting fingerprint data from an area surrounding a location of the detected feature in each captured image, and extracting a fingerprint descriptor by performing a transform of the fingerprint data extracted from the area surrounding the location of the detected feature in each captured image, wherein a size of the area is selected such that the area comprises sufficient information to allow a duplicated descriptor to be discarded for the captured images.
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公开(公告)号：US11308190B2
公开(公告)日：2022-04-19
申请号：US16763620
申请日：2018-11-09
申请人： Fingerprint Cards AB
发明人： Markus Andersson , Jan Nilsson , Anders Khullar
摘要： A method for handling biometric templates is disclosed for an authenticating device applying biometric authentication. The method comprises acquiring a set of biometric data associated with a prospect user, and acquiring a decryption key (associated with an encrypted biometric template associated with an enrolled user of the authenticating device) from a key carrying device external to the authenticating device responsive to the key carrying device being in a vicinity of the authenticating device. The method also comprises retrieving, from a storage medium, at least a part of the encrypted biometric template associated with the enrolled user, decrypting the retrieved part of the biometric template using the acquired decryption key and performing an attempt to authenticate the prospect user as the enrolled user based on a comparison between the acquired set of biometric data and the decrypted part of the biometric template.
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公开(公告)号：US11288678B2
公开(公告)日：2022-03-29
申请号：US16486306
申请日：2018-02-14
申请人： Fingerprint Cards AB
发明人： Peter Almers , Anders Nielsen , Troels Bjerre
摘要： The present invention relates to a method for progressively enrolling a user of a smart card, specifically applying a multi-step activation process for enabling fingerprint authentication for the smart card. The invention also relates to a corresponding smart card and to a computer program product. The present invention provides a solution for seamless fingerprint enrollment for a smart card user.
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