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141.发明申请公开(公告)号：US20200004941A1
公开(公告)日：2020-01-02
申请号：US16490166
申请日：2018-03-07
Applicant: Fingerprint Cards AB
Inventor： Sebastian WEBER , David BURNETT
Abstract: The present disclosure generally relates to methods for enrolling a user of an electronic device and authentication the user of the electronic device. The electronic device comprising a biometry sensor for acquiring sensing signals representative of a biometric feature, and a processor for computing a verification representation based on said sensing signals. The electronic device further includes a secure module isolated from said processor for computing an encrypted representation of said enrollment representation.
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公开(公告)号：US20190258882A1
公开(公告)日：2019-08-22
申请号：US16185221
申请日：2018-11-09
Applicant: Fingerprint Cards AB
Inventor： Carsten JUNCKER , Klaus S. ANDERSEN
IPC: G06K9/00
Abstract: The present disclosure relates to an electronic device comprising at least a first and a second biometric sensor arrangement, wherein the second biometric sensor arrangement being different from the first biometric sensor arrangement. The present disclosure also relates to a method for enrolling a user of such an electronic device and to a corresponding computer program product.
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公开(公告)号：US20190197283A1
公开(公告)日：2019-06-27
申请号：US16141368
申请日：2018-09-25
Applicant: Fingerprint Cards AB
Inventor： Frank RIEDIJK , Wouter BREVET
CPC classification number: G06K9/0002 , G06F21/32 , G06K9/00053 , G06K9/28
Abstract: A fingerprint sensing system for sensing a fingerprint pattern of a finger, comprising: a sensor array including a plurality of electrically conductive sensing structures; read-out circuitry connected to each of the sensing structures for providing sensing signals indicative of a capacitive coupling between the sensing structures and the finger; first signal providing circuitry for providing a first time-varying voltage signal to at least a portion of the sensor array; at least one electrically conductive edge-compensating structure arranged outside the sensor array; and second signal providing circuitry for providing a second time-varying voltage signal to the at least one edge-compensating structure.
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144.发明授权公开(公告)号：US10325168B2
公开(公告)日：2019-06-18
申请号：US15807777
申请日：2017-11-09
Applicant: Fingerprint Cards AB
Inventor： Morten Hansen , Morten With Pedersen
Abstract: The invention relates to a method performed by a fingerprint sensing system of determining if a finger contacts a fingerprint sensor of the system, and a fingerprint sensing system performing method. In a first aspect of the invention, a method performed by a fingerprint sensing system is provided for determining if a finger contacts a fingerprint sensor of the fingerprint sensing system. The method comprises capturing an image of an object contacting the fingerprint sensor, determining an intensity for a plurality of pixels of the captured image, estimating local curvatures of pixel intensity variation in the captured image, and determining from the estimated local curvatures if local pixel intensity variation is dominated by a single direction, in which case the object on the sensor is considered to constitute a finger.
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公开(公告)号：US10108840B2
公开(公告)日：2018-10-23
申请号：US15661736
申请日：2017-07-27
Applicant: Fingerprint Cards AB
Inventor： Markus Andersson , Mikael Danielsson
Abstract: There is provided a method of initiating a calibration operation of a fingerprint sensing device comprising an array of sensing elements for sensing a fingerprint pattern, the method comprising acquiring information indicative of a change of an environmental parameter influencing the operation of the fingerprint sensing device; and if the change is larger than a predetermined threshold value, performing a calibration operation of the fingerprint sensing device. There is also provided a method of initiating a calibration operation of a fingerprint sensing device comprising an array of sensing elements for sensing a fingerprint pattern, the method comprising: receiving information indicative of an event in a device in which the fingerprint sensing device is arranged; if the event is one of a group of predetermined events, performing a calibration operation of the fingerprint sensing device.
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Patent Agency Ranking
公开(公告)号：US10108838B2
公开(公告)日：2018-10-23
申请号：US15590393
申请日：2017-05-09
Applicant: Fingerprint Cards AB
Inventor： Jan Nilsson , Markus Andersson
Abstract: The present invention relates to a combined fingerprint sensing and body area network communication system for communication with an electronic unit using the body of a user as communication medium, comprising: a sensing arrangement and a body area network communication circuitry. The system is controllable between: a fingerprint sensing state, in which a first signal corresponding to the finger potential is provided to a connection electrode and a readout circuitry is controlled to provide sensing signals indicative of the capacitive coupling between each sensing structure and the user's finger; and a body area network communication state in which a second signal is provided to the connection electrode by a first of the electronic unit and the body area network communication circuitry to the other one of the electronic unit and the body area network communication circuitry.
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公开(公告)号：US20180173922A1
公开(公告)日：2018-06-21
申请号：US15807139
申请日：2017-11-08
Applicant: Fingerprint Cards AB
Inventor： Farzan GHAVANINI , Pontus JÄGEMALM
CPC classification number: G06K9/0002 , G06F3/0412 , G06F3/0416 , G06F3/044 , G06F2203/04112 , H01L27/323
Abstract: A capacitive fingerprint sensing device for sensing a fingerprint pattern of a finger can comprise a plurality of sensing elements. Each sensing element comprises a protective dielectric top layer to be touched by the finger; a first electrode comprising an optically transparent electrically conductive sensing structure arranged underneath the top layer; fingerprint sensing circuitry connected to the first electrode and configured to provide an analog sensing signal indicative of a distance between the finger and the sensing structure, a second electrode arranged underneath the first electrode; an organic light emitting layer arranged between the first and second electrodes; display element control circuitry connected to the second electrode and configured to control a display element comprising the first and second electrodes and the organic light emitting layer; and a switching mechanism configured to switch the sensing element between a fingerprint sensing mode and a display mode.
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公开(公告)号：US20180173921A1
公开(公告)日：2018-06-21
申请号：US15724603
申请日：2017-10-04
Applicant: Fingerprint Cards AB
Inventor： Fredrik Ramberg , Hans Thörnblom
CPC classification number: G06K9/0002 , G06F3/0416 , G06F3/044 , G06K9/00053
Abstract: There is provided a method for controlling a capacitive fingerprint sensing device for sensing a fingerprint pattern of a finger, the capacitive fingerprint sensor comprising a plurality of sensing elements. Each sensing element comprises a protective dielectric top layer to be touched by the finger, an electrically conductive sensing structure arranged underneath the top layer, sensing circuitry for providing an analog sensing signal indicative of a distance between the finger and the sensing structure. The fingerprint sensing device further comprises timing circuitry configured to control a timing of a drive signal, the drive signal being configured to provide a change in potential difference between the finger and the sensing structure. The method comprises forming a drive signal comprising a sequence of pulses, wherein a delay between consecutive pulses is controllable by said timing circuitry. There is also provided a sensing device configured to perform the above described method.
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公开(公告)号：US20180173920A1
公开(公告)日：2018-06-21
申请号：US15689496
申请日：2017-08-29
Applicant: Fingerprint Cards AB
Inventor： Kenneth Jonsson , David Tingdahl
CPC classification number: G06K9/0002 , G06F21/32 , G06K9/001
Abstract: The present invention generally relates to a method for forming a candidate fingerprint representation of a fingerprint of a finger of a user of an electronic device comprising a capacitive fingerprint sensor for sensing a fingerprint pattern, the method comprising acquiring a sequence of candidate fingerprint images each acquired at different imaging acquisition settings. Further, a fingerprint feature set is extracted from each of the candidate fingerprint images, the fingerprint features of each fingerprint set being extracted according to a first selection criterion. A feature representation set is determined for each of the fingerprint feature sets. A candidate fingerprint representation is formed from a combination of the fingerprint feature representation sets. The invention further relates to a fingerprint sensing system and an electronic device.
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公开(公告)号：US09971930B2
公开(公告)日：2018-05-15
申请号：US15725331
申请日：2017-10-05
Applicant: Fingerprint Cards AB
Inventor： Petter Östlund
CPC classification number: G06K9/0012 , A61B2562/0233 , G01R35/007 , G06K9/00013 , G06K9/0002 , G06K9/03
Abstract: There is provided a test module for testing a fingerprint sensing device comprising: an electrically conductive bottom element comprising an exterior surface portion configured to contact a sensing surface of the fingerprint sensing device; an electrically conductive intermediate element, connected to the bottom element on a side opposing the exterior surface, the intermediate element comprising a flexible material enabling the bottom element to change alignment in response to an applied force occurring when the exterior surface is pressed against a surface being tilted with respect to the exterior surface of the bottom element; and a top element configured connect the test module to a test fixture. There is also provided a method for testing a fingerprint sensing device using the described test module.
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