公开(公告)号：US20080273770A1

公开(公告)日：2008-11-06

申请号：US12112122

申请日：2008-04-30

申请人： Petr Kohout

发明人： Petr Kohout

IPC分类号： G06K9/00

CPC分类号： G06K9/00093 ,  G06K9/00073

摘要： For each minutia in the fingerprint, a set of surrounding “neighborhood” minutiae is identified. In each neighborhood, each minutiae pair of central and neighboring minutiae is described by several features including (but not limited to) the spacing between the two minutiae in a pair, the difference of orientations of two minutiae and the angle between the orientation of the central minutia and a line connecting the two minutiae. From these minutiae pair features, a minutiae pair index is constructed. The minutiae pair indices of enrolled fingerprints are compared to those of a proffered fingerprint. Identification of match can be by way of sufficient matching indices, sufficient matching neighborhoods identified from matching indices, and can be verified by a detailed comparison of corresponding minutiae pairs.

摘要翻译： 对于指纹中的每个细节，确定了一组周围的“邻域”细节。 在每个邻域，每个细节对的中心和相邻细节由几个特征描述，包括（但不限于）一对中的两个细节之间的间隔，两个细节的取向的差异和中心的取向之间的角度 细节，连线两条细节。 从这些细节对特征，构建细节对指数。 将登记的指纹的细节对指数与提供的指纹的指数进行比较。 匹配的识别可以通过足够的匹配索引，从匹配索引识别的足够的匹配邻域，并且可以通过相应细节对的详细比较来验证。

公开(公告)号：US07084642B2

公开(公告)日：2006-08-01

申请号：US11160343

申请日：2005-06-20

申请人： Giovanni Gozzini

发明人： Giovanni Gozzini

IPC分类号： G01R27/26 ,  A61B5/117 ,  G06K9/00

CPC分类号： G06K9/0002

摘要： For each pixel in an array of pixels in a fingerprint sensor, a fingerprint capacitor is defined by the fingerprint-bearing skin of a user's finger proximate to the top exposed surface of a sensing plate of the pixel. First and second plates are embedded in dielectric material beneath the sensing plate, and define therewith first and second capacitors of a sensing element. The capacitance of the fingerprint capacitor is coupled by the sensing element to an amplifier. During a sensing operation, the amplifier generates a pixel output signal that is a function of the variable capacitance of the fingerprint capacitor, which varies according to the presence of a fingerprint ridge or valley appearing directly above the sensing plate when the user's finger is in contact with the fingerprint sensor.

公开(公告)号：US06998855B2

公开(公告)日：2006-02-14

申请号：US10829403

申请日：2004-04-20

申请人： Marco Tartagni

发明人： Marco Tartagni

IPC分类号： G01R27/26

CPC分类号： G01B7/004 ,  G01B7/023 ,  G01B7/34 ,  G06K9/0002

摘要： A distance sensor has a capacitive element in turn having a first plate which is positioned facing a second plate whose distance is to be measured. In the case of fingerprinting, the second plate is defined directly by the skin surface of the finger being printed. The sensor includes an inverting amplifier, between the input and output of which the capacitive element is connected to form a negative feedback branch. By supplying an electric charge step to the input of the inverting amplifier, a voltage step directly proportional to the distance being measured is obtained at the output.

摘要翻译： 距离传感器具有电容元件，其依次具有第一板，该第一板被定位成面对要测量其距离的第二板。 在指纹的情况下，第二个板被被打印的手指的皮肤表面直接限定。 该传感器包括反相放大器，在其输入和输出之间电容元件连接以形成负反馈支路。 通过向反相放大器的输入端提供电荷步骤，在输出端获得与测量距离成正比的电压阶跃。

公开(公告)号：US20110257546A1

公开(公告)日：2011-10-20

申请号：US12763135

申请日：2010-04-19

申请人： Giovanni Gozzini ,  Michele Borgatti

发明人： Giovanni Gozzini ,  Michele Borgatti

IPC分类号： A61B5/0404 ,  A61B5/117 ,  G06K9/00

CPC分类号： A61B5/0404 ,  A61B5/1172 ,  A61B2560/0468

摘要： A heartbeat monitoring circuit shares one electrode with another device, such as a biometric sensor, and a second electrode that may be a dedicated element or form a part of the case of the apparatus in which the circuit is housed. When operated as an electrode for the heartbeat monitoring circuit, the biometric sensor is contacted by the user's finger while the second electrode is contacted by another part of the user's body, such as a finger on the hand holding the apparatus (e.g., cell phone). Contact may then simply and naturally be made on either side of the user's heart, and ideal arrangement for parametric heart data acquisition. A third electrode may optionally be provided. Data analysis may be performed on the apparatus or by a remote optional processing center.

摘要翻译： 心跳监测电路与诸如生物测定传感器的另一装置和可以是专用元件的第二电极共享一个电极，或形成其中容纳电路的装置的壳体的一部分。 当作为心跳监测电路的电极操作时，生物测定传感器被用户的手指接触，而第二电极与用户身体的另一部分接触，例如握住设备（例如手机）的手上的手指， 。 然后，接触可以简单而自然地在用户心脏的任一侧进行，并且用于参数心脏数据采集的理想布置。 可以可选地提供第三电极。 数据分析可以在设备上或由远程可选处理中心执行。

公开(公告)号：US20090169071A1

公开(公告)日：2009-07-02

申请号：US12355673

申请日：2009-01-16

申请人： Robert Bond ,  Alan Kramer ,  Giovanni Gozzini

发明人： Robert Bond ,  Alan Kramer ,  Giovanni Gozzini

IPC分类号： G06K9/00 ,  H01L33/00

CPC分类号： G06K9/00013 ,  A61B5/1172 ,  G06K9/00919 ,  H01L2224/32225 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/48464 ,  H01L2224/73265 ,  H01L2924/12044 ,  H01L2924/1815 ,  H01L2924/00014 ,  H01L2924/00

摘要： An integrated circuit (IC) package includes at least one light source disposed together with an IC structure within an encapsulation structure. The material forming the encapsulation structure is generally opaque. Accordingly, the light source and at least a portion of the IC are not visible to the unaided human eye. The thickness and geometry of the encapsulation are such that when the light source is caused to emit light, the encapsulation structure permits at least a portion of that light to be visible to a user. The IC may be a portion of a fingerprint sensor, exposed for receiving a fingertip of a user. The light source, or a plurality of such light sources, may be functional (e.g., providing visual indication of the of the condition or state of an item of hardware or software, assist the user in operation of a device), be primarily aesthetic, or a combination thereof.

摘要翻译： 集成电路（IC）封装包括与封装结构内的IC结构一起设置的至少一个光源。 形成封装结构的材料通常是不透明的。 因此，光源和IC的至少一部分对于肉眼是不可见的。 封装的厚度和几何形状使得当使光源发光时，封装结构允许该光的至少一部分对用户可见。 IC可以是暴露以接收用户指尖的指纹传感器的一部分。 光源或多个这样的光源可以是功能的（例如，提供对硬件或软件的条件或状态的视觉指示，帮助用户操作设备），主要是美学的， 或其组合。

公开(公告)号：US06927581B2

公开(公告)日：2005-08-09

申请号：US09997549

申请日：2001-11-27

申请人： Giovanni Gozzini

发明人： Giovanni Gozzini

IPC分类号： G01B7/28 ,  A61B5/117 ,  G06K9/00 ,  G06T1/00 ,  G01R27/26

CPC分类号： G06K9/0002

摘要： For each pixel in an array of pixels in a fingerprint sensor, a fingerprint capacitor is defined by the fingerprint-bearing skin of a user's finger proximate to the top exposed surface of a sensing plate of the pixel. First and second plates are embedded in dielectric material beneath the sensing plate, and define therewith first and second capacitors of a sensing element. The capacitance of the fingerprint capacitor is coupled by the sensing element to an amplifier. During a sensing operation, the amplifier generates a pixel output signal that is a function of the variable capacitance of the fingerprint capacitor, which varies according to the presence of a fingerprint ridge or valley appearing directly above the sensing plate when the user's finger is in contact with the fingerprint sensor.

摘要翻译： 对于指纹传感器中的像素阵列中的每个像素，指纹电容器由靠近像素的感测板的顶部暴露表面的用户手指的皮肤指纹定义。 第一和第二板被嵌入在感测板下面的电介质材料中，并且与传感元件的第一和第二电容器一起限定。 指纹电容器的电容由感测元件耦合到放大器。 在感测操作期间，放大器产生作为指纹电容器的可变电容的函数的像素输出信号，该指纹电容器根据当用户的手指接触时在感测板正上方出现的指纹脊或谷的存在而变化 与指纹传感器。

公开(公告)号：US07809211B2

公开(公告)日：2010-10-05

申请号：US11561239

申请日：2006-11-17

申请人： Peter Taraba ,  Giovanni Corradini ,  Martin Subert

发明人： Peter Taraba ,  Giovanni Corradini ,  Martin Subert

IPC分类号： G06K9/36

CPC分类号： G06K9/00026

摘要： Image normalization examines the pixels of two frames, most commonly sequentially obtained sub-images, and mathematically determines the displacement of those pixels from the first frame to the second based on pixel data. The pixel data is obtained from a scanning device, and may be for example grayscale value. The image may be for example that of a user's fingerprint, and the image normalization used to form a computed image of the fingerprint from a plurality of sub-images obtained from a fingerprint scanner. The computed image may be stored, compared to a reference frame or otherwise processed, for example for identifying the user.

摘要翻译： 图像归一化检查两帧的像素，最常见的是顺序获得的子图像，并且基于像素数据在数学上确定这些像素从第一帧到第二帧的位移。 从扫描装置获得像素数据，并且可以是例如灰度值。 图像可以是例如用户指纹的图像，以及用于从从指纹扫描器获得的多个子图像中形成计算的指纹图像的图像归一化。 所计算的图像可以与参考帧相比较，或者以其它方式被处理，例如用于识别用户。

公开(公告)号：US20100127366A1

公开(公告)日：2010-05-27

申请号：US12324869

申请日：2008-11-27

申请人： Robert Bond ,  Alan Kramer ,  Giovanni Gozzini

发明人： Robert Bond ,  Alan Kramer ,  Giovanni Gozzini

IPC分类号： H01L23/495 ,  H01L21/71

CPC分类号： G06K9/00026 ,  H01L23/49541 ,  H01L23/49548 ,  H01L23/49551 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/49171 ,  H01L2924/10253 ,  H01L2924/00014 ,  H01L2924/00

摘要： An integrated leadframe and bezel structure includes a planar carrier frame, a plurality of bonding leads, a die pad region, and a bezel structure. The bezel structure includes a bending portion shaped and disposed to facilitate a portion of said bezel structure being bent out of the plane of said carrier frame. A sensor IC may be secured to the die pad region, and wire bonds made to permit external connection to the sensor IC. The bezel structure includes portions which are bent such that their upper extent is in or above a sensing surface. The assembly is encapsulated, exposing on the top surface part of the bezel portions and the upper surface of the sensor IC, and on the bottom surface the contact pads. Two or more bezel portions may be provided, one or more on each side of the sensor IC.

摘要翻译： 集成的引线框架和边框结构包括平面载体框架，多个键合引线，芯片焊盘区域和边框结构。 边框结构包括弯曲部分，该弯曲部分成形并设置成便于所述边框结构的一部分从所述载体框架的平面弯曲出来。 传感器IC可以固定到管芯焊盘区域，并且引线接合以允许外部连接到传感器IC。 边框结构包括弯曲的部分，使得它们的上部范围在感测表面中或上方。 组件被封装，暴露在边框部分的顶表面部分和传感器IC的上表面上，并且在底表面上暴露于接触垫。 可以提供两个或更多个边框部分，在传感器IC的每一侧上设置一个或多个边框部分。

公开(公告)号：US20060062437A1

公开(公告)日：2006-03-23

申请号：US11162616

申请日：2005-09-16

申请人： Lawrence O'Gorman ,  Wayne Miller

发明人： Lawrence O'Gorman ,  Wayne Miller

IPC分类号： G06K9/00

CPC分类号： G06K9/00026 ,  G06K9/00919

摘要： The enclosure assembly comprises a stationary member including at least two substantially parallel sidewalls, the sidewalls, the sidewalls partially defining a cavity in which the fingerprint sensor is disposed. An access piece, configured to move relative to the stationary member, has a surface area larger than the surface area of the fingerprint sensor and further includes a conductive portion electrically coupled to ground. A movement apparatus is preferably mechanically coupled to the stationary member and the moveable access piece. The movement apparatus is configured to maintain the moveable access piece in a position covering the fingerprint sensor and yet to allow motion of the moveable access piece relative to the stationary member so as to expose the fingerprint sensor. According to another embodiment, a method for enrolling a composite image of an object using a fingerprint sensor is provided. According to an embodiment, the method comprises the steps of receiving a finger disposed over a fingerprint sensor in a first stationary position; capturing a first image of a first portion of the finger with the fingerprint sensor; causing the finger to be repositioned over the fingerprint sensor in a second stationary position; capturing a second image of a second portion of the finger with the fingerprint sensor; and constructing a representative image of the finger from the first and second images.

公开(公告)号：US20060011997A1

公开(公告)日：2006-01-19

申请号：US11162861

申请日：2005-09-27

申请人： Alexander Kalnitsky ,  Alan Kramer

发明人： Alexander Kalnitsky ,  Alan Kramer

IPC分类号： H01L29/82

CPC分类号： G06F3/044 ,  G06F2203/04107 ,  G06K9/00053 ,  H01L27/0248

摘要： A planar fingerprint pattern detecting array includes a large number of individual skin-distance sensing cells that are arranged in a row/column configuration. Each sensing cell includes an amplifier having an ungrounded input mode and an ungrounded output node. Output-to-input negative feedback that is sensitive to the fingerprint pattern is provided for each amplifier by way of (1) a first capacitor plate that is placed vertically under the upper surface of a dielectric layer and is connected to the ungrounded amplifier input node, (2) a second capacitor plate that is placed vertically under the upper surface of the dielectric layer in close horizontal spatial relation to the first capacitor plate and is connected to the ungrounded output node, and (3) an ungrounded fingertip whose fingerprint pattern is to be detected, which ungrounded fingertip is placed on the upper surface of the dielectric layer in close vertical spatial relation with the first and second capacitor plates. Electrostatic discharge protection relative to electrostatic potential that may be carried by the ungrounded fingertip is provided by placing a number of grounded metal paths within the dielectric layer to spatially surround each of the first and second capacitor plates, this being done in a manner that does not disturb the ungrounded state of the fingertip.

摘要翻译： 平面指纹图案检测阵列包括以行/列配置布置的大量单独的皮肤距离感测单元。 每个感测单元包括具有不接地输入模式的放大器和未接地输出节点。 通过以下步骤为每个放大器提供对指纹图案敏感的输出到输入负反馈：（1）第一电容器板，其垂直放置在电介质层的上表面下方并连接到未接地的放大器输入节点 ，（2）第二电容器板，其垂直于电介质层的上表面放置在与第一电容器板紧密的水平空间关系上，并连接到未接地的输出节点，（3）指纹图案为未接地的指尖 要被检测到，哪个未接地的指尖被放置在与第一和第二电容器板紧密垂直空间关系的电介质层的上表面上。 通过在电介质层内放置多个接地的金属路径来空间地围绕第一和第二电容器板中的每一个来提供相对于静电电位的静电放电保护，这是通过不接地的指尖来承载的， 打扰指尖的未接地状态。