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公开(公告)号：US20180137327A1
公开(公告)日：2018-05-17
申请号：US15623800
申请日：2017-06-15
Applicant: Fingerprint Cards AB
Inventor： Frank Riedijk , Hans THÖRNBLOM
IPC: G06K9/00
CPC classification number: G06K9/0002 , G06K9/00067
Abstract: A method of determining a physical property of a finger using a sensor comprising a two-dimensional measuring arrangement including a plurality of measuring elements, each defining a measuring element position in the measuring arrangement, and each comprising a finger electrode spaced apart from the finger by a dielectric structure. For each measuring element position, the method comprises the steps of performing a first sensing operation using a first capacitive configuration, acquiring a first measurement value for the first capacitive configuration, performing a second sensing operation using a second capacitive configuration, acquiring a second measurement value for the second capacitive configuration. The physical property of the finger is determined based on the first and second measurement values for each measuring element position.
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公开(公告)号：US20170344780A1
公开(公告)日：2017-11-30
申请号：US15484554
申请日：2017-04-11
Applicant: Fingerprint Cards AB
Inventor： Frank RIEDIJK , Hans THÖRNBLOM , Daniel ANDERSSON
IPC: G06K9/00
CPC classification number: G06K9/0002 , G06K9/00053
Abstract: There is provided a capacitive fingerprint sensing device for sensing a fingerprint pattern of a finger, the capacitive fingerprint sensor comprising: a protective dielectric top layer to be touched by the finger; a two-dimensional array of electrically conductive sensing structures arranged underneath the top layer; readout circuitry coupled to each of the electrically conductive sensing structures to receive a sensing signal indicative of a distance between the finger and the sensing structure, the readout circuitry comprising a plurality of signal amplifiers arranged underneath the array of electrically conductive sensing structures, wherein a number of signal amplifiers is lower than a number of sensing structures; and selection circuitry coupling each of the sensing structures to at least one signal amplifier and configured to select a sensing structure to be coupled to a corresponding signal amplifier. There is also provided a method for controlling a fingerprint sensing device.
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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
Applicant: Fingerprint Cards AB
Inventor： Frank RIEDIJK , Wouter BREVET , Hans THÖRNBLOM
Abstract: 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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Patent Agency Ranking
公开(公告)号：US20220075976A1
公开(公告)日：2022-03-10
申请号：US17467633
申请日：2021-09-07
Applicant: Fingerprint Cards AB
Inventor： Frank RIEDIJK , David CARLING , Hans THÖRNBLOM , Wouter BREVET
Abstract: 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：US20160210495A1
公开(公告)日：2016-07-21
申请号：US14911573
申请日：2014-08-22
Applicant: FINGERPRINT CARDS AB
Inventor： Pontus JÄGEMALM , Karl LUNDAHL , Mats SLOTTNER , Hans THÖRNBLOM , Ojie JULIAN
CPC classification number: G06K9/0002 , H01L24/03 , H01L24/05 , H01L24/09 , H01L24/48 , H01L24/49 , H01L2224/033 , H01L2224/0345 , H01L2224/03462 , H01L2224/035 , H01L2224/04042 , H01L2224/05022 , H01L2224/05624 , H01L2224/05647 , H01L2224/06179 , H01L2224/48091 , H01L2224/48148 , H01L2224/48465 , H01L2224/48471 , H01L2224/49175 , H01L2224/85186 , H01L2924/00014 , H01L2924/10155 , H01L2924/10157 , H01L2924/181 , H01L2224/45099 , H01L2924/00 , H01L2924/00012 , H01L2224/4554
Abstract: A fingerprint sensing device comprising sensing circuitry comprising a plurality of sensing elements, each sensing element comprising a sensing structure arranged in a sensing plane and facing a surface of the capacitive fingerprint sensing device, each of the sensing elements being configured to provide a signal indicative of an electromagnetic coupling between the sensing structure and a finger placed on the surface of the fingerprint sensing device; and a plurality of connection pads electrically connected to the sensing circuitry for providing an electrical connection between the sensing circuitry and readout circuitry, wherein each of the connection pads is separately recessed in relation to the sensing plane such that each connection pad has a floor in a floor plane, and wherein each connection pad is separated from an adjacent connection pad through a portion of the sensing device being elevated in relation to the floor plane.
Abstract translation: 一种指纹感测装置，包括感测电路，其包括多个感测元件，每个感测元件包括布置在感测平面中并面向电容式指纹感测装置的表面的感测结构，每个感测元件被配置为提供指示 感测结构和放置在指纹感测装置的表面上的手指之间的电磁耦合; 以及电连接到感测电路的多个连接焊盘，用于在感测电路和读出电路之间提供电连接，其中每个连接焊盘相对于感测平面分别凹陷，使得每个连接焊盘具有位于 底板平面，并且其中每个连接垫通过相对于底板平面升高的感测装置的一部分与相邻的连接垫分离。
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公开(公告)号：US20210124814A1
公开(公告)日：2021-04-29
申请号：US16605416
申请日：2018-04-17
Applicant: FINGERPRINT CARDS AB
Inventor： Markus ANDERSSON , Fredrik RAMBERG , Hans THÖRNBLOM , Gabriel RUNDLÖF , Hamid SARVE , Troels BJERRE
Abstract: The present invention 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, wherein the method comprises: determining the area portion of a finger detecting structure being touched by an object; determining a force applied on the fingerprint sensing device. When the area portion of the finger detecting structure being touched by the object exceeds a predetermined threshold area portion, and the force exceeds a predetermined threshold force value, transitioning, using the pre-processing module, the device controller from the at least partly inactive mode to the at least partly active mode. The invention also relates to such an electronic device.
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7.发明申请公开(公告)号：US20180137324A1
公开(公告)日：2018-05-17
申请号：US15806834
申请日：2017-11-08
Applicant: Fingerprint Cards AB
Inventor： Frank RIEDIJK , Wouter BREVET , Hans THÖRNBLOM , Christer JANSSON
CPC classification number: G06K9/001 , G01D5/24 , G06K9/0002 , G06K9/00067
Abstract: A method of determining a representation of a fingerprint pattern of a finger using a fingerprint sensor comprising a two-dimensional measuring arrangement including a plurality of measuring elements, each comprising a finger electrode spaced apart from the finger by a dielectric structure. For each measurement position, the method comprises the steps of: providing a first measuring element configuration with an elongated first measuring arrangement portion having a first principal direction of extension; and a first peripheral measuring arrangement portion; acquiring a first measurement value for the measurement position; providing a second measuring element configuration having an elongated second measuring arrangement portion having a second principal direction of extension; and a second peripheral measuring arrangement portion; and acquiring a second measurement value for the measurement position. The representation of the fingerprint pattern is determined based on the first measurement value and the second measurement value for each of the measurement positions.
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公开(公告)号：US20170243043A1
公开(公告)日：2017-08-24
申请号：US15439501
申请日：2017-02-22
Applicant: Fingerprint Cards AB
Inventor： Markus Andersson , Eric Setterberg , Hans THÖRNBLOM
IPC: G06K9/00
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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