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公开(公告)号：US20190050620A1
公开(公告)日：2019-02-14
申请号：US16159029
申请日：2018-10-12
Applicant: Fingerprint Cards AB
Inventor： Markus Andersson , Mikael Danielsson , René Nilsson , Hans Martinsson
Abstract: A method of initiating a calibration operation of an optical fingerprint sensing device comprising an array of photosensitive elements for capturing 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 fingerprint sensing device configured to perform the method, and a consumer electronic device comprising such a fingerprint sensing device.
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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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公开(公告)号：US20170140233A1
公开(公告)日：2017-05-18
申请号：US15193913
申请日：2016-06-27
Applicant: Fingerprint Cards AB
Inventor： Markus Andersson , Mikael Danielsson
CPC classification number: G06K9/0002 , G06K9/209
Abstract: 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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Patent Agency Ranking
公开(公告)号：US11308190B2
公开(公告)日：2022-04-19
申请号：US16763620
申请日：2018-11-09
Applicant: Fingerprint Cards AB
Inventor： Markus Andersson , Jan Nilsson , Anders Khullar
Abstract: 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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公开(公告)号：US10586031B2
公开(公告)日：2020-03-10
申请号：US15807812
申请日：2017-11-09
Applicant: Fingerprint Cards AB
Inventor： Markus Andersson , Olis Olofsson
IPC: G06F21/32 , G06K9/00 , G06F3/0346
Abstract: The present invention relates to an electronic device. In particular, the present invention relates to an electronic device comprising a first and a second biometric sensor and processing circuitry arranged to authenticate the user of the electronic device. The present invention also relates to a corresponding method and computer program for authenticating the user of an electronic device.
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公开(公告)号：US10325134B2
公开(公告)日：2019-06-18
申请号：US16159029
申请日：2018-10-12
Applicant: Fingerprint Cards AB
Inventor： Markus Andersson , Mikael Danielsson , René Nilsson , Hans Martinsson
Abstract: A method of initiating a calibration operation of an optical fingerprint sensing device comprising an array of photosensitive elements for capturing 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 fingerprint sensing device configured to perform the method, and a consumer electronic device comprising such a fingerprint sensing device.
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公开(公告)号：US20170323138A1
公开(公告)日：2017-11-09
申请号：US15661736
申请日：2017-07-27
Applicant: Fingerprint Cards AB
Inventor： Markus Andersson , Mikael Danielsson
CPC classification number: G06K9/0002 , G06K9/209
Abstract: 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：US09471765B1
公开(公告)日：2016-10-18
申请号：US15066219
申请日：2016-03-10
Applicant: Fingerprint Cards AB
Inventor： Eric Setterberg , Morten Jensen , Markus Andersson
CPC classification number: G06K9/00026 , G06K9/00087 , G06K9/00926 , G06K9/6255
Abstract: A method of authenticating a finger against a stored template and expanding the stored template. The method comprises acquiring a present fingerprint image; retrieving a stored enrollment representation, comprising said stored template, and a representation of at least a first previous fingerprint image acquired in connection with a previous failed authentication attempt; and determining if the stored template should be expanded. When it is determined that a first match between a present fingerprint image representation and the stored template fulfills a first template updating requirement and a second match between the present fingerprint image representation and said at least first previous fingerprint image representation fulfills said second template updating requirement, a signal indicating a successful authentication is provided; and a first expanded template is formed based on said stored template, said present fingerprint image and said at least first previous fingerprint image.
Abstract translation: 一种针对存储的模板认证手指并扩展存储的模板的方法。 该方法包括获取当前指纹图像; 检索存储的登记表示，包括所述存储的模板，以及与先前失败的认证尝试相关联地获取的至少第一先前指纹图像的表示; 并确定是否应扩展存储的模板。 当确定当前指纹图像表示与所存储的模板之间的第一匹配满足第一模板更新要求，并且当前指纹图像表示与所述至少第一先前指纹图像表示之间的第二匹配满足所述第二模板更新要求时， 提供表示成功认证的信号; 并且基于所述存储的模板，所述当前指纹图像和所述至少第一先前指纹图像形成第一扩展模板。
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