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公开(公告)号：US11216640B2
公开(公告)日：2022-01-04
申请号：US15439501
申请日：2017-02-22
Applicant: Fingerprint Cards AB
Inventor： Markus Andersson , Eric Setterberg , Hans Thörnblom
Abstract: The present invention generally relates to a method for transitioning a device controller comprised with an electronic device from an at least partly inactive mode to an at least partly active mode, the electronic device further comprising a pre-processing module and a fingerprint sensor configured to acquire image data. The invention also relates to a corresponding electronic device and to a computer program product.
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公开(公告)号：US11170196B2
公开(公告)日：2021-11-09
申请号：US16609274
申请日：2018-04-20
Applicant: FINGERPRINT CARDS AB
Inventor： Morten Hansen , Klaus Andersen , Arne Husth , Michael Hansen
Abstract: The invention relates to a method of a fingerprint sensing system of extracting fingerprint feature data from an image captured by a fingerprint sensor of the fingerprint sensing system, and a fingerprint sensing system performing the method.
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183.发明申请公开(公告)号：US20210312157A1
公开(公告)日：2021-10-07
申请号：US17272577
申请日：2018-09-05
Applicant: Fingerprint Cards AB
Inventor： Jun LIU , Ehsan HASHEMI , Hans MARTINSSON , René NILSSON , Farzan GHAVANINI
Abstract: There is an optical biometric imaging device configured to capture an image of an object in contact with an outer surface of the biometric imaging device, the biometric imaging device comprising: an image sensor comprising a photodetector pixel array and image sensor circuitry configured to capture an image of the object in contact with the outer surface of the imaging device; the image sensor comprising a first electrically conductive structure arranged adjacent to an active sensing area of the photodetector pixel array; a display panel arranged on top of and at a distance from the image sensor, the display panel comprising a second electrically conductive structure on a bottom side of the display panel and arranged to face the first electrically conductive structure of the image sensor; and capacitive readout circuitry arranged and configured to detect a capacitance between the first electrically conductive structure and the second electrically conductive structure.
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184.发明申请公开(公告)号：US20210250867A1
公开(公告)日：2021-08-12
申请号：US16766962
申请日：2018-12-03
Applicant: Fingerprint Cards AB
Inventor： Hamid SARVE , Jimmy BJÖRKLUND
Abstract: The present invention relates to a method for controlling a device controller of an electronic device comprising a fingerprint sensor to transition from an at least partly active mode to an at least partly in-active mode. The fingerprint sensor itself is used for determining a presence of a finger on the fingerprint sensor, wherein a device controller is maintained in an at least partly active mode if a finger is detected on the fingerprint sensor. The present invention also relates to an electronic device comprising a fingerprint sensor and a device controller.
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公开(公告)号：US11080546B2
公开(公告)日：2021-08-03
申请号：US16753762
申请日：2018-10-02
Applicant: Fingerprint Cards AB
Inventor： Søren Skovgaard Christensen , Morten With Pedersen
Abstract: The present disclosure relates a method for fingerprint image enhancement comprising applying a first low pass filter and a first weight to raw fingerprint image data to produce a first filtered fingerprint image data set. Applying a second low pass filter and a second weight to the raw fingerprint image data to produce a second filtered fingerprint image data set. Filter coefficients of the second filter are different from filter coefficients of the first filter. The first filtered fingerprint image data set and the second filtered fingerprint image data set are combined to produce a final enhanced fingerprint image. The disclosure also relates to a fingerprint sensing system and to an electronic device comprising a fingerprint sensing system.
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Patent Agency Ranking
186.发明申请公开(公告)号：US20210232241A1
公开(公告)日：2021-07-29
申请号：US17051177
申请日：2019-04-26
Applicant: Fingerprint Cards AB
Inventor： Troels BJERRE , Klaus S. ANDERSEN
IPC: G06F3/0354 , G06K9/00
Abstract: A method for providing user input on an electronic device comprising a fingerprint sensor comprising an array of sensing elements. Acquiring partial fingerprint images of a finger touching a finger touch surface of the fingerprint sensor from at least two sub-groups of sensing element. Determining a respective force value indicative of a force applied on the finger touch surface at each of the sub-groups of sensing elements when the partial fingerprints were acquired, based on the partial fingerprint images acquired from the respective sub-group of sensing elements. Determining a force value difference between a pair of the determined force values. Determining a user input based on the determined force value difference, and based on the relative location between the sub-groups of sensing elements in the pair associated with the force value difference.
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公开(公告)号：US20210224626A1
公开(公告)日：2021-07-22
申请号：US15733899
申请日：2019-05-27
Applicant: Fingerprint Cards AB
Inventor： Karl LUNDAHL , Olivier LIGNIER
IPC: G06K19/07 , G06K19/077
Abstract: Method for manufacturing a smartcard comprising a fingerprint sensor, the method comprising: arranging a fingerprint sensor module in an opening of a carrier layer of a smartcard body; forming a cavity in the smartcard in an area corresponding to a sensing area of the fingerprint sensor module; forming a plurality of surface structures in the cavity of the smartcard; depositing a liquid hydrophobic material in the cavity to at least partially cover the surface structures and a smartcard manufactured according to the described method.
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公开(公告)号：US11062113B2
公开(公告)日：2021-07-13
申请号：US16605550
申请日：2018-04-19
Applicant: FINGERPRINT CARDS AB
Inventor： Morten With Pedersen , Morten Hansen
Abstract: A fingerprint image is acquired, and it is determined if the finger is still touching the sensing surface. When the finger no longer touches the sensing surface, the user is authenticated based on one or several fingerprint image(s) acquired so far. When the finger still touches the sensing surface, a quality measure is determined for the fingerprint image. When a quality of the fingerprint image fulfills a predefined quality criterion, the user is authenticated based on one or several fingerprint images acquired so far. When the quality of the fingerprint image fails to fulfill the predefined quality criterion, a subsequent fingerprint image is acquired. When the finger still touches the sensing surface, and the quality measure indicates that the quality of the subsequent fingerprint image fulfills the predefined quality criterion, the user is authenticated based on one or several fingerprint images acquired so far including the subsequent fingerprint image.
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公开(公告)号：US20210152360A1
公开(公告)日：2021-05-20
申请号：US16623240
申请日：2018-07-05
Applicant: Fingerprint Cards AB
Inventor： Christian GEHRMANN
Abstract: In an aspect of the invention, a network node configured to enable authentication of a user of a client device based on biometric data captured by the client device is provided, which network node receives a request to authenticate a user of a client device, the authentication request comprising a user identifier, fetch at least one set of enrolled transformed biometric data corresponding to the user identifier and a secret feature transform key with which the biometric data was transformed at enrolment of the transformed biometric data at the network node, and submit the transformed biometric data and the secret feature transform key over a secure communication channel to the client device.
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190.发明申请公开(公告)号：US20210142036A1
公开(公告)日：2021-05-13
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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