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

IPC: G06K9/00 ,  H01L23/00

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。

公开(公告)号：US20170004352A1

公开(公告)日：2017-01-05

申请号：US15189055

申请日：2016-06-22

Applicant: Fingerprint Cards AB

Inventor： Kenneth Jonsson ,  Eric Setterberg ,  David Tingdahl

IPC: G06K9/00

CPC classification number: G06K9/00114 ,  G06K9/00013 ,  G06K9/0008 ,  G06K9/001 ,  G06K2009/00966

Abstract: A computer-implemented method of performing fingerprint based authentication from matching local features represented by binary features which can be matched in an efficient implementation in one or both of software and hardware by computing Hamming distances between the binary features. A local feature in a verification image is said to be matching with a local feature in an enrolment image if the Hamming distance between the binary features falls below a pre-determined threshold. The computer-implemented method retains information about the similarity of local features in the two images and utilities it in an efficient way with the objective of improving fingerprint recognition rates and enabling finger liveness detection. In an aspect a normalized feature similarity distribution is generated as part of the representation in recognition and liveness detection.

Abstract translation: 一种计算机实现的方法，其通过匹配由二进制特征表示的局部特征来执行基于指纹的认证，所述二进制特征可以通过计算二进制特征之间的汉明距离来在软件和硬件的一个或两个中的有效实施中匹配。 如果二进制特征之间的汉明距离低于预定阈值，则验证图像中的本地特征被称为与注册图像中的本地特征匹配。 计算机实现的方法保留关于两个图像中的局部特征的相似性的信息，并以有效的方式实现它，目的是改善指纹识别率并实现手指活动检测。 在一方面，归一化特征相似性分布被生成为识别和活性检测中的表示的一部分。

公开(公告)号：US09524416B1

公开(公告)日：2016-12-20

申请号：US15045379

申请日：2016-02-17

Applicant: Fingerprint Cards AB

Inventor： Sonja Rommel

IPC: G06K9/00

CPC classification number: G06K9/0002 ,  G06K9/00053 ,  G06K9/00087

Abstract: There is provided a fingerprint sensing device comprising: a sensing chip comprising an array of sensing elements, the sensing elements being configured to be connected to readout circuitry for detecting a capacitive coupling between each of the sensing elements and a finger placed on a sensing surface of the sensing device; a cover layer arranged vertically above the sensing elements to cover at least a portions of the sensing elements, wherein an outer surface of the cover layer form the sensing surface of the sensing device; wherein the cover layer comprises a three-dimensional pattern configured to reduce the amount of reflected light within a predetermined sub-range of the visible range. There is also provided a method for manufacturing a fingerprint sensing device.

Abstract translation: 提供了一种指纹感测装置，包括：感测芯片，包括感测元件阵列，所述感测元件被配置为连接到读出电路，用于检测每个感测元件之间的电容耦合以及放置在感测表面的感测表面上的手指 传感装置; 覆盖层，其垂直地布置在感测元件上方以覆盖感测元件的至少一部分，其中覆盖层的外表面形成感测装置的感测表面; 其中所述覆盖层包括经配置以减少所述可见范围的预定子范围内的反射光量的三维图案。 还提供了一种用于制造指纹感测装置的方法。

公开(公告)号：US09521314B2

公开(公告)日：2016-12-13

申请号：US14833890

申请日：2015-08-24

Applicant: FINGERPRINT CARDS AB

Inventor： Eric Setterberg

IPC: H04N9/47 ,  H04N7/18 ,  H04N5/232 ,  G06K9/00

CPC classification number: H04N5/23219 ,  G06K9/00013 ,  G06K9/00026 ,  G06K9/00912 ,  G06K9/00926

Abstract: The present invention relates to a method of enrolling a fingerprint of a user's finger, by means of an elongated fingerprint sensor having a sensing area being smaller than the fingerprint. The method comprises the steps of instructing the user to place the finger on the fingerprint sensor with a first finger orientation for achieving a first angle between a longitudinal finger axis and a longitudinal sensor axis; acquiring a partial fingerprint image for the first orientation; instructing the user to place the finger on the fingerprint sensor with a second finger orientation for achieving a second angle; acquiring a partial fingerprint image for the second finger orientation; and forming a fingerprint enrollment representation for the finger based on the partial fingerprint images for the first and second finger orientations and a relation between the first angle and the second angle.

Abstract translation: 本发明涉及通过具有小于指纹的感测区域的细长指纹传感器来登记用户手指的指纹的方法。 该方法包括以下步骤：指示用户将手指放置在指纹传感器上，具有第一手指取向，以实现纵向指状轴线和纵向传感器轴线之间的第一角度; 获取用于所述第一取向的部分指纹图像; 指示用户以第二手指方向将手指放置在指纹传感器上以实现第二角度; 获取用于所述第二手指取向的部分指纹图像; 以及基于所述第一和第二手指取向的部分指纹图像以及所述第一角度和所述第二角度之间的关系，形成所述手指的指纹注册表示。

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

Inventor： Morten Rolle Hansen ,  Lars Puggaard Bøgild Christensen ,  Hans Thörnblom

IPC: G06K9/00 ,  G06T5/00 ,  G06K9/40

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。

公开(公告)号：US09514352B2

公开(公告)日：2016-12-06

申请号：US14833809

申请日：2015-08-24

Applicant: FINGERPRINT CARDS AB

Inventor： Eric Setterberg ,  Hamid Sarvé ,  David Tingdahl

IPC: G06K9/00 ,  G06F3/041 ,  G06F21/32 ,  G06F3/0354

CPC classification number: G06K9/00087 ,  G06F3/03547 ,  G06F21/32 ,  G06K9/00013 ,  G06K9/00026 ,  G06K9/00926

Abstract: The present invention relates to a method of enrolling a fingerprint of a user's finger, by means of an electronic device comprising a touch sensor having an active area corresponding to a first surface portion of the electronic device; and a fingerprint sensor having an active area corresponding to a second surface portion of the electronic device. The comprises the steps of acquiring a touch sensor signal indicative of a sub-area of the touch sensor being touched by the finger; acquiring a partial fingerprint image of a portion of the fingerprint; a positional relationship between the portion of the fingerprint and the finger based on the sub-area and a positional relationship between the first and second surface portions of the electronic device; and forming a fingerprint template based on acquired partial fingerprint images and the determined positional relationships.

Abstract translation: 本发明涉及一种通过包括触摸传感器的电子设备登记用户手指的方法，该触摸传感器具有对应于该电子设备的第一表面部分的有效区域; 以及具有对应于电子设备的第二表面部分的有效区域的指纹传感器。 包括以下步骤：获取指示由手指触摸的触摸传感器的子区域的触摸传感器信号; 获取指纹的一部分的部分指纹图像; 基于子区域的指纹部分和手指之间的位置关系以及电子设备的第一和第二表面部分之间的位置关系; 以及基于所获取的部分指纹图像和确定的位置关系形成指纹模板。

公开(公告)号：US20160253544A1

公开(公告)日：2016-09-01

申请号：US15054179

申请日：2016-02-26

Applicant: Fingerprint Cards AB

Inventor： Sebastian Weber ,  Stefan Printz ,  Olis Olofsson

IPC: G06K9/00 ,  G06F3/0481

CPC classification number: G06K9/00013 ,  G06F1/1626 ,  G06F1/1684 ,  G06F3/0481 ,  G06F3/0484 ,  G06K9/0008 ,  G06K9/00912

Abstract: The present invention relates to a method of guiding a user of a portable electronic device when operating a fingerprint sensor comprised with the portable electronic device. The invention allows for an improved enrollment process as well as for general improvements when using the fingerprint sensor. The invention also relates to a corresponding electronic device and to a computer program product.

Abstract translation: 本发明涉及一种在携带便携式电子设备的指纹传感器的操作时引导便携式电子设备的用户的方法。 本发明允许改进的注册过程以及使用指纹传感器时的一般改进。 本发明还涉及相应的电子设备和计算机程序产品。

公开(公告)号：US20160180619A1

公开(公告)日：2016-06-23

申请号：US14812480

申请日：2015-07-29

Applicant: FINGERPRINT CARDS AB

Inventor： Frank Robert Riedijk

IPC: G07C9/00 ,  G01R27/26

CPC classification number: G07C9/00158 ,  G01R27/2605 ,  G06K9/0002

Abstract: The present invention relates to a capacitive fingerprint sensing system comprising excitation signal providing circuitry and a plurality of sensing elements. Each sensing element includes a protective dielectric top layer, an electrically conductive sensing structure coupled to the excitation signal for providing a sensing signal indicative of a change of a charge carried by the sensing structure resulting from a change in potential difference between the finger and the sensing structure, and demodulation circuitry connected to the sensing circuitry for combining the sensing signal and a demodulation signal being timing-related to the excitation signal to provide a combined signal including a DC signal component indicating the change of the charge carried by the sensing structure. The fingerprint sensing system further comprises readout circuitry connected to each of the sensing elements for providing a representation of the fingerprint pattern based on the DC signal component from each of the sensing elements.

Abstract translation: 本发明涉及包括激励信号提供电路和多个感测元件的电容式指纹感测系统。 每个感测元件包括保护电介质顶层，耦合到激励信号的导电感测结构，用于提供指示感测结构携带的电荷的变化的感测信号，这是由手指和感测之间的电位差的变化引起的 结构和解调电路，其连接到感测电路，用于组合感测信号和与激励信号定时相关的解调信号，以提供包括指示感测结构承载的电荷变化的DC信号分量的组合信号。 指纹感测系统还包括连接到每个感测元件的读出电路，用于基于来自每个感测元件的DC信号分量提供指纹图案的表示。

公开(公告)号：US20160180141A1

公开(公告)日：2016-06-23

申请号：US14952169

申请日：2015-11-25

Applicant: FINGERPRINT CARDS AB

Inventor： Hamid SARVE ,  David TINGDAHL ,  Carsten JUNCKER ,  Niels MØRCH

IPC: G06K9/00 ,  G06T7/00 ,  G06K9/03

CPC classification number: G06K9/00026 ,  G06K9/0008 ,  G06K9/001 ,  G06K9/036

Abstract: In a fingerprint sensing system, a determination is made of a center of attention, COA, point. The COA point is a point on a finger of a user that is likely to be in proximity of the center of a fingerprint image of the finger obtained by a fingerprint sensor. This COA determination is used in guiding the user in a fingerprint enrolment procedure.

Abstract translation: 在指纹感测系统中，确定了注意中心，COA，点。 COA点是用户手指上可能位于由指纹传感器获得的手指的指纹图像的中心附近的点。 这种COA确定用于在指纹注册过程中指导用户。

公开(公告)号：US20160180138A1

公开(公告)日：2016-06-23

申请号：US14812578

申请日：2015-07-29

Applicant: FINGERPRINT CARDS AB

Inventor： Frank Robert Riedijk

IPC: G06K9/00 ,  G01N27/22

CPC classification number: G06K9/0002 ,  A61B2562/0214 ,  G01R27/2605 ,  G06F3/03547 ,  G07C9/00

Abstract: The present invention relates to a capacitive fingerprint sensing device for sensing a fingerprint pattern of a finger, the capacitive fingerprint sensor comprising a plurality of sensing elements, each including: a protective dielectric top layer to be touched by the finger; an electrically conductive sensing structure arranged underneath the top layer; charge measuring circuitry connected to the sensing structure for sequentially transitioning between at least a first measurement state and a second measurement state to perform a measurement sequence resulting in an output signal from the charge measuring circuitry being indicative of a change of a charge carried by the sensing structure resulting from a change in a potential difference between the finger and the sensing structure; and timing circuitry connected to the charge measuring circuitry for controlling a timing of at least one of the measurement states.

Abstract translation: 本发明涉及用于感测手指指纹图案的电容式指纹感测装置，该电容式指纹传感器包括多个感测元件，每个感测元件包括：被手指触摸的保护电介质顶层; 布置在顶层下方的导电感测结构; 电荷测量电路，其连接到所述感测结构，用于在至少第一测量状态和第二测量状态之间顺序转换，以执行测量序列，从而产生来自所述电荷测量电路的输出信号，其指示由所述感测携带的电荷的变化 由手指和感测结构之间的电位差的变化引起的结构; 以及连接到所述电荷测量电路的定时电路，用于控制所述测量状态中的至少一个的定时。