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公开(公告)号：US11328537B2
公开(公告)日：2022-05-10
申请号：US17265889
申请日：2019-07-02
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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2.发明授权公开(公告)号：US11307635B2
公开(公告)日：2022-04-19
申请号：US16609573
申请日：2018-04-24
申请人： FINGERPRINT CARDS AB
IPC分类号： G06F1/32 , G06F1/3234 , G06F1/10 , G06F1/26 , G06F1/3206 , G06F11/30 , G06F21/32 , G06F21/60 , G06F21/62 , G06K9/00 , G06K19/07 , H04B5/00
摘要： A method of controlling operation of a field-powered biometric device comprising biometric acquisition circuitry, processing circuitry controllable to transition between a first functional state having a first power consumption and a second functional state having a second power consumption lower than the first power consumption, and power management circuitry. The method comprises the steps of monitoring, by the power management circuitry, a property indicative of a supply voltage to the processing circuitry; controlling, when the monitored property indicates that the supply voltage has fallen to a first threshold voltage, the processing circuitry to transition from the first functional state to the second functional state; and controlling, when the monitored property indicates that the supply voltage has increased to a second threshold voltage higher than the first threshold voltage, the processing circuitry to transition from the second functional state to the first functional state.
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公开(公告)号：US11288476B2
公开(公告)日：2022-03-29
申请号：US16609684
申请日：2018-04-25
申请人： FINGERPRINT CARDS AB
发明人： Hanna Nilsson , Karl Lundahl
摘要： The present invention generally relates to a fingerprint sensor package comprising a substrate having thereon a plurality of electrical connection pads, a fingerprint sensor arranged on the substrate and electrically connected to at least one of the electrical connection pads, a bond wire loop formed from a bond wire having two ends of which at least one end is mechanically and electrically attached to a first one of the electrical connection pads, and a force sensing member in electrical contact with the first electrical connection pad via an upper portion of the bond wire loop, and in electrical contact with a second one of the electrical connection pads different from the first electrical connection pad, wherein an electrical property of the force sensing member is alterable in response to a deformation of the force sensing member.
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公开(公告)号：US20220075977A1
公开(公告)日：2022-03-10
申请号：US17467745
申请日：2021-09-07
申请人： Fingerprint Cards AB
发明人： Frank RIEDIJK , Wouter BREVET , Hans THÖRNBLOM
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 placed on the finger receiving surface of the fingerprint sensor arrangement, the plurality of electrically conductive sensing structures including: a first set of electrically conductive sensing structures, each sensing structure in the first set of electrically conductive sensing structures covering an area in the sensing plane being within a first area range; and a second set of electrically conductive sensing structures, each sensing structure in the second set of electrically conductive sensing structures covering an area in the sensing plane being within a second area range only including areas greater than the areas within the first area range.
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公开(公告)号：US20220075976A1
公开(公告)日：2022-03-10
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：US11216640B2
公开(公告)日：2022-01-04
申请号：US15439501
申请日：2017-02-22
申请人： Fingerprint Cards AB
摘要： 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
申请人： FINGERPRINT CARDS AB
发明人： Morten Hansen , Klaus Andersen , Arne Husth , Michael Hansen
摘要： 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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8.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
申请人： Fingerprint Cards AB
发明人： Jun LIU , Ehsan HASHEMI , Hans MARTINSSON , René NILSSON , Farzan GHAVANINI
摘要： 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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公开(公告)号：US20210250867A1
公开(公告)日：2021-08-12
申请号：US16766962
申请日：2018-12-03
申请人： Fingerprint Cards AB
发明人： Hamid SARVE , Jimmy BJÖRKLUND
摘要： 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
申请人： Fingerprint Cards AB
摘要： 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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