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11.发明授权公开(公告)号：US11288488B2
公开(公告)日：2022-03-29
申请号：US16623203
申请日：2018-06-27
Applicant: FINGERPRINT CARDS AB
Inventor： Klaus S. Andersen , Morten Hansen
Abstract: The invention relates to a fingerprint sensing system and a method of the fingerprint sensing system of enabling authentication of a user based on fingerprint data captured by a fingerprint sensor of the fingerprint sensing system. The method comprises capturing at least one image of a fingerprint of a user's finger contacting the fingerprint sensor, acquiring a stored image comprising impairment data caused by impairments that the fingerprint sensor is subjected to, extracting fingerprint feature data from the captured at least one image, extracting impairment feature data from the acquired image, and comparing at least a subset of the extracted fingerprint feature data to at least a subset of the extracted impairment feature data of the acquired image, and if there is a match the user is not authenticated.
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公开(公告)号：US11288480B2
公开(公告)日：2022-03-29
申请号：US16830871
申请日：2020-03-26
Applicant: Fingerprint Cards AB
Inventor： Kenneth Jonsson , David Tingdahl
IPC: G06K9/00
Abstract: The present invention generally relates to a method for authenticating a finger of a user of an electronic device comprising a fingerprint sensor for sensing a fingerprint pattern, the method comprising the steps of: acquiring a candidate fingerprint image; determining, based on the candidate fingerprint image, a humidity level indication indicative of the humidity level of the finger; performing an authentication pre-process based on the humidity level indication; performing a fingerprint authentication process based on the pre-process to authenticate the user.
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公开(公告)号：US20210365531A1
公开(公告)日：2021-11-25
申请号：US17056042
申请日：2019-06-18
Applicant: Fingerprint Cards AB
Inventor： Mats TUNELD , Christian GEHRMANN , Eric SETTERBERG
IPC: G06F21/32
Abstract: The present disclosure generally relates to a method for authenticating a user using an electronic device, where the electronic device comprises a biometric sensing system as well as a first, a second and a third control unit. The present disclosure also relates to a corresponding electronic device and to a computer program product.
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14.发明申请公开(公告)号：US20210357603A1
公开(公告)日：2021-11-18
申请号：US16757808
申请日：2018-10-23
Applicant: FINGERPRINT CARDS AB
Inventor： Farzan GHAVANINI , Jonas TALLHAGE , Frank RIEDIJK , René NILSSON , Wieslaw BICZ , Agnieszka BICZ
Abstract: A method for controlling a plurality of ultrasonic transducers in a fingerprint sensing system that comprises a cover plate having a sensing surface configured to be touched by a finger, and a plurality of ultrasonic transducers located at the periphery of the cover plate and configured to transmit an acoustic signal propagating in the cover plate, receive an ultrasonic signal having interacted with an object in contact with the sensing surface, and to determine properties of the object based on the received ultrasonic signal. The method comprises: in response to a first input, controlling the plurality of transducers such that at least a portion of the sensing surface has a first feature detection resolution; and in response to a second input, controlling the plurality of transducers such that at least a portion of the sensing surface has a second feature detection resolution, different from the first feature detection resolution.
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公开(公告)号：US11100305B2
公开(公告)日：2021-08-24
申请号：US16772929
申请日：2018-12-11
Applicant: Fingerprint Cards AB
Inventor： Martin Grip , Farzan Ghavanini
IPC: G06K9/00 , G06K9/22 , B06B1/02 , G02F1/1362 , G06F3/044 , G02F1/1333 , H01L27/32 , G06F3/041
Abstract: There is provided a display arrangement comprising an ultrasonic biometric sensing device. The display arrangement comprises: a cover plate having a sensing surface configured to be touched by a finger; a display panel comprising a plurality of sub-layers; a plurality of ultrasonic transducers arranged along the periphery of the display arrangement and outside of an active display area of the display arrangement, each ultrasonic transducer comprising a top and bottom electrode; and ultrasonic transducer control circuitry 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 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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Patent Agency Ranking
公开(公告)号：US20210173908A1
公开(公告)日：2021-06-10
申请号：US16616856
申请日：2018-05-31
Applicant: FINGERPRINT CARDS AB
Inventor： Eric SETTERBERG
Abstract: A method of authenticating a user by means of a fingerprint authentication system comprising a finger sensing arrangement, comprising the following steps for each authentication attempt in a sequence of authentication attempts: receiving a touch by a candidate finger probe on the finger sensing arrangement; acquiring a candidate fingerprint image of the candidate finger probe; determining an authentication representation based on the candidate fingerprint image; retrieving a stored enrollment representation of an enrolled fingerprint of the user; determining a match score based on a comparison between the authentication representation and the enrolment representation; determining a liveness score for the authentication attempt; determining a qualification metric for the authentication attempt based on a relation between the liveness score for the authentication attempt and a liveness score for at least one previous authentication attempt; and determining an authentication result for the authentication attempt based on the match score, and the qualification metric.
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公开(公告)号：US20210165985A1
公开(公告)日：2021-06-03
申请号：US16772929
申请日：2018-12-11
Applicant: Fingerprint Cards AB
Inventor： Martin GRIP , Farzan GHAVANINI
IPC: G06K9/00 , G06K9/22 , H01L27/32 , G06F3/044 , G02F1/1333 , B06B1/02 , G02F1/1362 , G06F3/041
Abstract: There is provided a display arrangement comprising an ultrasonic biometric sensing device. The display arrangement comprises: a cover plate having a sensing surface configured to be touched by a finger; a display panel comprising a plurality of sub-layers; a plurality of ultrasonic transducers arranged along the periphery of the display arrangement and outside of an active display area of the display arrangement, each ultrasonic transducer comprising a top and bottom electrode; and ultrasonic transducer control circuitry 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 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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公开(公告)号：US10891459B2
公开(公告)日：2021-01-12
申请号：US16621302
申请日：2018-06-11
Applicant: FINGERPRINT CARDS AB
Inventor： Karl Lundahl
IPC: G06K7/08 , G06K9/00 , G06K19/077 , H01L21/48 , H01L21/56 , H01L21/683 , H01L23/31 , H01L23/538 , H01L23/00
Abstract: There is provided a fingerprint sensor module comprising a fingerprint sensor device comprising a sensing array and at least one connection pad for electrically connecting the fingerprint sensor device to external circuitry, the sensing array and connection pad being located on a first side of the fingerprint sensing device; at least one electrically conductive via connection arranged adjacent to the fingerprint sensor device and in electrical contact with the connection pad via at least one conductive trace located in the same plane as the connection pad; a mold layer arranged to cover a backside of the fingerprint sensor device and to fill a volume between the fingerprint sensor device and the via connection, wherein an end portion of the via connection is exposed for connecting the fingerprint sensor module to external circuitry. There is also provided a method for manufacturing such a fingerprint sensor module.
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公开(公告)号：US10796128B2
公开(公告)日：2020-10-06
申请号：US16218284
申请日：2018-12-12
Applicant: FINGERPRINT CARDS AB
Inventor： Arash Akhavan Fomani , Marek Mienko , Richard Klenkler , Patrick Smith , Robert J. Gove , Guozhong Shen , Alvin Jee , Young Seen Lee , Jason Goodelle , Bob Lee Mackey
Abstract: An optical sensor device includes: a display layer, comprising a light source configured to generate light incident on an input surface of the optical sensor device; an image sensor layer, disposed below the display layer, comprising an optical image sensor having a plurality of image sensor pixels; and a first ambient light filter layer, disposed between the display layer and the image sensor layer, configured to block one or more wavelengths of light.
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20.发明授权公开(公告)号：US10782821B2
公开(公告)日：2020-09-22
申请号：US16486744
申请日：2018-02-26
Applicant: Fingerprint Cards AB
Inventor： Troels Bjerre
Abstract: A method of classifying a finger touch in respect of a finger pressure on a surface of a fingerprint sensor, comprising the steps of: receiving, on the surface of the fingerprint sensor, a finger having a fingerprint topography; acquiring a first time-sequence of fingerprint images; determining a reference value of at least one image-related parameter indicative of a compression of the fingerprint topography, based on at least one fingerprint image in the first time-sequence of fingerprint images; acquiring a second time-sequence of fingerprint images; determining a test value of the at least one image-related parameter based on at least one fingerprint image in the second time-sequence of fingerprint images; and classifying the finger touch based on a relation between the test value and the reference value.
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