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公开(公告)号：US09582704B2
公开(公告)日：2017-02-28
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：US09519819B2
公开(公告)日：2016-12-13
申请号：US14698930
申请日：2015-04-29
Applicant: FINGERPRINT CARDS AB
CPC classification number: G06K9/00087 , G06K9/0002 , G06K9/00067 , G06K9/40 , G06K2009/00939 , G06K2209/00 , G06T5/00 , G06T5/002 , G06T2207/10004 , G06T2207/30196
Abstract: The present invention generally relates to a method for removing disturbances in an image captured by a fingerprint sensor, and specifically to reduction of noise in an acquired fingerprint image by incorporating the sensing principle into the applied method for noise reduction, wherein the noise reduced image is used for determining a representation of a fingerprint pattern. Advantages with the invention include enhanced determination of fingerprint patterns from fingerprint images captured using a fingerprint sensor. The invention also relates to a corresponding electronic device and to a computer program product.
Abstract translation: 本发明总体上涉及一种去除由指纹传感器捕获的图像中的干扰的方法，特别是通过将感测原理并入应用于噪声降低的方法中来减少获取的指纹图像中的噪声，其中降噪图像是 用于确定指纹图案的表示。 本发明的优点包括使用指纹传感器捕获的指纹图像增强了指纹图案的确定。 本发明还涉及相应的电子设备和计算机程序产品。
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公开(公告)号：US20160078269A1
公开(公告)日：2016-03-17
申请号：US14710134
申请日：2015-05-12
Applicant: FINGERPRINT CARDS AB
Inventor： Hans Thörnblom
IPC: G06K9/00
CPC classification number: G06K9/0002 , G06K9/00053
Abstract: The present invention relates to a fingerprint sensor comprising a voltage supply interface for receiving a supply voltage; a sensor communication interface for providing the fingerprint pattern signal to external circuitry; a synchronization input for receiving a sync signal interpreted to correspond to a first logical state when the sensor ground potential is at the first potential and to a second logical state, different from the first logical state, when the sensor ground potential is at the second potential, and a plurality of sensing elements, each comprising a sensing structure. The sensing elements are configured such that the potential of the sensing structures follows the potential of the modulated fingerprint sensor ground potential, and the timing of the sampling of sensing signals from the sensing elements is based on perceived state transitions of the sync signal.
Abstract translation: 本发明涉及一种指纹传感器，包括用于接收电源电压的电压供应接口; 用于将指纹图案信号提供给外部电路的传感器通信接口; 当传感器接地电位处于第二电位时，同步输入用于接收被解释为对应于传感器接地电位处于第一电位的第一逻辑状态的同步信号和与第一逻辑状态不同的第二逻辑状态 ，以及多个感测元件，每个都包括感测结构。 感测元件被配置为使得感测结构的电位跟随调制的指纹传感器接地电位的电位，并且来自感测元件的感测信号的采样的定时基于同步信号的感知状态转换。
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公开(公告)号：US20160012271A1
公开(公告)日：2016-01-14
申请号：US14698930
申请日：2015-04-29
Applicant: FINGERPRINT CARDS AB
CPC classification number: G06K9/00087 , G06K9/0002 , G06K9/00067 , G06K9/40 , G06K2009/00939 , G06K2209/00 , G06T5/00 , G06T5/002 , G06T2207/10004 , G06T2207/30196
Abstract: The present invention generally relates to a method for removing disturbances in an image captured by a fingerprint sensor, and specifically to reduction of noise in an acquired fingerprint image by incorporating the sensing principle into the applied method for noise reduction, wherein the noise reduced image is used for determining a representation of a fingerprint pattern. Advantages with the invention include enhanced determination of fingerprint patterns from fingerprint images captured using a fingerprint sensor.The invention also relates to a corresponding electronic device and to a computer program product.
Abstract translation: 本发明总体上涉及一种去除由指纹传感器捕获的图像中的干扰的方法，特别是通过将感测原理并入应用于噪声降低的方法中来减少获取的指纹图像中的噪声，其中降噪图像是 用于确定指纹图案的表示。 本发明的优点包括使用指纹传感器捕获的指纹图像增强了指纹图案的确定。 本发明还涉及相应的电子设备和计算机程序产品。
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25.发明申请公开(公告)号：US20150347807A1
公开(公告)日：2015-12-03
申请号：US14718776
申请日：2015-05-21
Applicant: FINGERPRINT CARDS AB
Inventor： Sebastian Weber , Markus Andersson , Hans Thörnblom , Frank Robert Riedijk
IPC: G06K9/00
CPC classification number: G06K9/0002 , G06K9/0008 , G06K9/001
Abstract: The present invention relates to an electronic device comprising a fingerprint sensing system including a plurality of sensing elements, each being configured to capacitively couple to a finger arranged adjacent to the sensing element and to provide a sensing signal indicative of a response to a time-varying finger excitation signal provided to the finger; and an electrically conducting housing at least partly enclosing an interior of the electronic device. The electronic device further comprises housing connection circuitry connected to the electrically conducting housing, and arranged and configured to at least intermittently allow a potential of the electrically conducting housing to follow the finger excitation signal. Hereby the housing can be used to enhance the functionality of the fingerprint sensing system.
Abstract translation: 电子设备技术领域本发明涉及一种电子设备，其包括指纹感测系统，其包括多个感测元件，每个感测元件被配置为电容耦合到与感测元件相邻布置的手指，并提供指示对时变的响应的感测信号 手指激励信号提供给手指; 以及至少部分地包围所述电子设备的内部的导电外壳。 电子设备还包括连接到导电壳体的壳体连接电路，并且被布置和配置为至少间歇地允许导电壳体的电位跟随手指激励信号。 因此，壳体可用于增强指纹感测系统的功能。
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Patent Agency Ranking
公开(公告)号：US11538267B2
公开(公告)日：2022-12-27
申请号：US17467745
申请日：2021-09-07
Applicant: Fingerprint Cards AB
Inventor： Frank Riedijk , Wouter Brevet , Hans Thörnblom
IPC: G06V40/13 , G06V10/147 , H04M1/02
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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公开(公告)号：US11216633B2
公开(公告)日：2022-01-04
申请号：US16979300
申请日：2019-03-04
Applicant: Fingerprint Cards AB
Inventor： Lars Christensen , Hans Thörnblom , Frank Riedijk , Søren Skovgaard Christensen
Abstract: The present invention relates to providing a filtered fingerprint pattern signal indicative of a fingerprint pattern with a fingerprint sensing device comprising an array of sensing elements for sensing the fingerprint pattern. Each sensing element is configured to provide a sensing signal indicative of a local fingerprint pattern feature. The method comprises: receiving analog sensing signals from each of a set of sensing elements comprising at least four sensing elements, filtering the set of sensing signals to provide a set of filtered output signals each comprising a linear combination of the set of sensing signals in which each sensing signal has a respective coefficient. The coefficients in each linear combination sum up to zero, and wherein the linear combinations are different from each other. The set of filtered output signals are converted to a filtered digital sensing signal indicative of the user's fingerprint pattern.
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公开(公告)号：US11176234B2
公开(公告)日：2021-11-16
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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公开(公告)号：US20200184056A1
公开(公告)日：2020-06-11
申请号：US16613326
申请日：2018-05-23
Applicant: FINGERPRINT CARDS AB
Inventor： Hans Thörnblom , Eric Setterberg , Lars Puggaard Bøgild Christensen , Søren Skovgaard Christensen , Anders Ø. Nielsen
Abstract: The present disclosure generally relates to a method for authenticating a user using an electronic device, where the electronic device comprises a fingerprint sensor as well as a first and a second control unit. Preferably, the first control unit comprises a secure element and/or a secure block adapted to provide a secure processing environment. The present disclosure also relates to a corresponding electronic device and to a computer program product.
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公开(公告)号：US10002280B1
公开(公告)日：2018-06-19
申请号：US15724603
申请日：2017-10-04
Applicant: Fingerprint Cards AB
Inventor： Fredrik Ramberg , Hans Thörnblom
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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