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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
申请人： Fingerprint Cards AB
摘要： 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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公开(公告)号：US10108838B2
公开(公告)日：2018-10-23
申请号：US15590393
申请日：2017-05-09
申请人： Fingerprint Cards AB
发明人： Jan Nilsson , Markus Andersson
摘要： 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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3.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
申请人： FINGERPRINT CARDS AB
IPC分类号： G06K9/00
CPC分类号： G06K9/0002 , G06K9/0008 , G06K9/001
摘要： 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.
摘要翻译： 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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公开(公告)号：US11176234B2
公开(公告)日：2021-11-16
申请号：US16605416
申请日：2018-04-17
申请人： FINGERPRINT CARDS AB
发明人： Markus Andersson , Fredrik Ramberg , Hans Thörnblom , Gabriel Rundlöf , Hamid Sarve , Troels Bjerre
摘要： 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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5.发明授权公开(公告)号：US09489559B2
公开(公告)日：2016-11-08
申请号：US14718776
申请日：2015-05-21
申请人： FINGERPRINT CARDS AB
IPC分类号： G06K9/00
CPC分类号： G06K9/0002 , G06K9/0008 , G06K9/001
摘要： 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.
摘要翻译： 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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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：US20180005001A1
公开(公告)日：2018-01-04
申请号：US15590393
申请日：2017-05-09
申请人： Fingerprint Cards AB
发明人： Jan Nilsson , Markus Andersson
CPC分类号： G06K9/0002 , G01D5/24 , H04B13/005 , H04L63/0861
摘要： 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：US20170344782A1
公开(公告)日：2017-11-30
申请号：US15596254
申请日：2017-05-16
申请人： Fingerprint Cards AB
发明人： Markus Andersson
CPC分类号： G06K9/0002 , G06F21/32 , G06K9/00087
摘要： The present invention generally relates to a method for authenticating a user of an electronic device comprising a fingerprint sensor and a force sensor, the method comprising: retrieving a stored plurality of fingerprint enrolment templates comprising an enrolment representation of at least part of a user's finger and a corresponding enrolment force parameter, acquiring a first verification image of an object and determining a first verification representation, determining a first verification force parameter, performing a fingerprint authentication procedure based on the first verification template and the plurality of fingerprint enrolment templates, wherein when the first verification representation and the first verification force parameter comprised in the first verification template matches each of the enrolment representation and the enrolment force parameter comprised in the same fingerprint enrolment template providing a signal indicating successful authentication of the user. The invention also relates to a fingerprint sensing system and an electronic device.
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公开(公告)号：US20170323137A1
公开(公告)日：2017-11-09
申请号：US15661680
申请日：2017-07-27
申请人： Fingerprint Cards AB
CPC分类号： G06K9/0002 , G06K9/209
摘要： 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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公开(公告)号：US11308190B2
公开(公告)日：2022-04-19
申请号：US16763620
申请日：2018-11-09
申请人： Fingerprint Cards AB
发明人： Markus Andersson , Jan Nilsson , Anders Khullar
摘要： A method for handling biometric templates is disclosed for an authenticating device applying biometric authentication. The method comprises acquiring a set of biometric data associated with a prospect user, and acquiring a decryption key (associated with an encrypted biometric template associated with an enrolled user of the authenticating device) from a key carrying device external to the authenticating device responsive to the key carrying device being in a vicinity of the authenticating device. The method also comprises retrieving, from a storage medium, at least a part of the encrypted biometric template associated with the enrolled user, decrypting the retrieved part of the biometric template using the acquired decryption key and performing an attempt to authenticate the prospect user as the enrolled user based on a comparison between the acquired set of biometric data and the decrypted part of the biometric template.
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