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公开(公告)号：US11951759B2
公开(公告)日：2024-04-09
申请号：US17902779
申请日：2022-09-02
发明人： Keith Bryan Hardin
IPC分类号： B42D25/45 , B42D25/369 , B42D25/373 , G06K19/06 , G06K19/08
CPC分类号： B42D25/369 , B42D25/373 , B42D25/45
摘要： The invention adds a Physical Information Layer (“PIL”) to the magnetic particles within a matrix that creates an unclonable physical unclonable function “object.” The PIL assists in searching to find the combination that matches a pre-determined enrolled combination with additional information that includes a search index, which limits the range of data required to search in order to find a match in the enrolled database. The index could be a predetermined value that associates the random magnetic profile values to a list of enrolled values in a database. The additional information may include product or general information that needs to be easily communicated to a user of the PUF.
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公开(公告)号：US11340312B2
公开(公告)日：2022-05-24
申请号：US17012483
申请日：2020-09-04
摘要： A magnetic sensor array device is described that is constructed with multiple sensors integrated on a common silicon die, diced and packaged in a wafer level package (WLP). The device comprises an array of multi-axis magnetic sensors that can measure the multi-dimensional magnetic field of an arbitrary sized two-dimensional region with high spatial resolution, reduced sensing distance, higher measurement throughput, tolerance to motion, improved temperature measurement, and improved yield when placed on a circuit card comprises part of an authentication system including a physical unclonable function (“PUF”), a substrate, a plurality of magnetized particles randomly dispersed in the substrate, and a PUF reader constructed using one or more of the magnetic sensor array devices wherein the PUF reader measures the magnetic field at multiple locations in close proximity to the magnetized particles. The measured magnetic field data may be compared to previously enrolled data to assess authenticity.
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公开(公告)号：US20180167526A1
公开(公告)日：2018-06-14
申请号：US15373967
申请日：2016-12-09
CPC分类号： H04N1/00875 , B41J27/00 , G06F3/1222 , G06F3/1238 , H04N1/4426 , H04N2201/0094
摘要： Magnetic keys having a plurality of magnetic plates are disclosed. The location and orientation of the magnetic plates are controlled to generate magnetic fields that are of sufficient strength to be reliably read and sufficient complexity to be difficult to counterfeit. The magnetic keys are located on imaging-device supply items along with non-volatile memory devices containing measurements of the magnetic fields that are digitally signed. These supply items are difficult to counterfeit. Other devices are disclosed.
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公开(公告)号：US20180165558A1
公开(公告)日：2018-06-14
申请号：US15378917
申请日：2016-12-14
CPC分类号： G06K19/06187 , G06K7/087 , H04L9/00
摘要： Magnetic keys having a plurality of magnetic layers having holes are disclosed. The location and orientation of the holes are controlled to generate magnetic fields that are of sufficient strength to be reliably read and sufficient complexity to be difficult to counterfeit. The magnetic keys are located on imaging-device supply items along with non-volatile memory devices containing measurements of the magnetic fields that are digitally signed. These supply items are difficult to counterfeit. Other devices are disclosed.
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5.发明申请Continuous Extrusion Process for Manufacturing a Z-Directed Component for a Printed Circuit Board 有权用于制造用于印刷电路板的Z定向部件的连续挤压工艺公开(公告)号：US20150101742A1
公开(公告)日：2015-04-16
申请号：US14574903
申请日：2014-12-18
CPC分类号： B29C47/0066 , B28B3/20 , B28B11/16 , B29C47/0004 , B29C47/0035 , B29K2995/0005 , B29K2995/0007 , B29L2031/3425 , H01G4/33 , H01G4/35 , H05K1/0221 , H05K1/0231 , H05K1/0251 , H05K1/0298 , H05K1/184 , H05K3/30 , H05K3/306 , H05K3/4046 , H05K2201/10015 , H05K2201/10053 , H05K2201/10984 , Y10T29/4913 , Y10T29/49135
摘要： A method for manufacturing a Z-directed component for insertion into a mounting hole in a printed circuit board according to one example embodiment includes simultaneously extruding a plurality of materials according to the structure of the Z-directed component to form an extruded object and forming the Z-directed component from the extruded object. In one embodiment, the extruded object is divided into individual Z-directed components. In one embodiment, the timing of extrusion between predetermined sections of one of the materials is varied in order to stagger the sections in the extruded object.
摘要翻译： 根据一个示例性实施例的用于制造用于插入到印刷电路板的安装孔中的Z定向部件的方法包括根据Z定向部件的结构同时挤压多种材料以形成挤出物体并形成 来自挤压物体的Z向分量。 在一个实施例中，将挤出的物体分成单独的Z向分量。 在一个实施例中，改变其中一个材料的预定部分之间的挤压定时，以便交错挤出物体中的部分。
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公开(公告)号：US20140202753A1
公开(公告)日：2014-07-24
申请号：US14248685
申请日：2014-04-09
发明人： Keith Bryan Hardin , John Thomas Fessler , Paul Kevin Hall , Brian Lee Nally , Robert Lee Oglesbee
IPC分类号： H05K1/11
CPC分类号： H05K1/115 , H01B7/0009 , H05K1/0248 , H05K1/0286 , H05K1/0298 , H05K1/184 , H05K2201/10984
摘要： A Z-directed signal delay line component for insertion into a printed circuit board while allowing electrical connection to internal conductive planes contained with the PCB. In one embodiment the Z-directed delay line component is housed within the thickness of the PCB allowing other components to be mounted over it. The delay line embodiments include a W-like line and a plurality of spaced apart, semi-circular line segment connected such that current flow direction alternates in direction between adjacent semi-circular line segments, each of which in other embodiments can be varied by use of shorting bars. Several Z-directed delay line components may be mounted into a PCB and serially connected to provide for longer delays. The body may contain one or more conductors and may include one or more surface channels or wells extending along at least a portion of the length of the body.
摘要翻译： 用于插入印刷电路板的Z指向信号延迟线组件，同时允许电连接到与PCB一起包含的内部导电平面。 在一个实施例中，Z向延迟线部件容纳在PCB的厚度内，允许其上的其它部件安装在其上。 延迟线实施例包括W状线和多个间隔开的半圆形线段，其连接成使得电流流动方向在相邻的半圆形线段之间交替方向交替，在其它实施例中，每一个可以通过使用来改变 的短路。 几个Z向延迟线组件可以安装到PCB中并串联连接以提供更长的延迟。 主体可以包含一个或多个导体并且可以包括沿着身体的长度的至少一部分延伸的一个或多个表面通道或孔。
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公开(公告)号：US20130161082A1
公开(公告)日：2013-06-27
申请号：US13717966
申请日：2012-12-18
发明人： Keith Bryan Hardin , John Thomas Fessler , Paul Kevin Hall , Brian Lee Nally , Robert Aaron Oglesbee
CPC分类号： H05K1/115 , H01B7/0009 , H05K1/0248 , H05K1/0286 , H05K1/0298 , H05K1/184 , H05K2201/10984
摘要： A Z-directed signal delay line component for insertion into a printed circuit board while allowing electrical connection to internal conductive planes contained with the PCB. In one embodiment the Z-directed delay line component is housed within the thickness of the PCB allowing other components to be mounted over it. The delay line embodiments include a W-like line and a plurality of spaced apart, semi-circular line segment connected such that current flow direction alternates in direction between adjacent semi-circular line segments, each of which in other embodiments can be varied by use of shorting bars. Several Z-directed delay line components may be mounted into a PCB and serially connected to provide for longer delays. The body may contain one or more conductors and may include one or more surface channels or wells extending along at least a portion of the length of the body. Methods for mounting Z-directed components are also provided.
摘要翻译： 用于插入印刷电路板的Z指向信号延迟线组件，同时允许电连接到与PCB一起包含的内部导电平面。 在一个实施例中，Z向延迟线部件容纳在PCB的厚度内，允许其上的其它部件安装在其上。 延迟线实施例包括W状线和多个间隔开的半圆形线段，其连接成使得电流流动方向在相邻的半圆形线段之间交替方向交替，在其它实施例中，每一个可以通过使用来改变 的短路。 几个Z向延迟线组件可以安装到PCB中并串联连接以提供更长的延迟。 主体可以包含一个或多个导体并且可以包括沿着身体的长度的至少一部分延伸的一个或多个表面通道或孔。 还提供了用于安装Z向定向部件的方法。
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公开(公告)号：US20230114075A1
公开(公告)日：2023-04-13
申请号：US18081626
申请日：2022-12-14
IPC分类号： G01R33/07 , H01L21/302 , H10N52/00
摘要： A physically unclonable function is an object that has characteristics that make it extremely difficult or impossible to copy. An array of randomly dispersed hard (magnetized) and soft (non-magnetized) magnetic particles that may be conducting or nonconducting that are disbursed in a binder create a particular magnetic field or capacitive pattern on the surface. This surface magnetic field and capacitive variations can be considered to be a unique pattern similar to fingerprint. The Hall effect prism is a sensor that measures the effects of these patterns by sensing the deformation of currents or electric potential flowing within or around a resistive substrate material that exhibits a substantial Hall effect coefficient.
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公开(公告)号：US11522694B2
公开(公告)日：2022-12-06
申请号：US17184173
申请日：2021-02-24
摘要： The present invention is a diverse acoustical object containing a range of particles that have acoustical wave impedances that are substantially different from the binder. The particles create a substantially different reflection as an acoustic wave is scattered by the particles. A negative reflection is created when the scattered wave is from a particle that has a wave impedance that is substantially less than the binder impedance. Practically, it may be necessary to encase this material in a thin material that will withstand the fabrication process (e.g., air or silicone elastomer could be encased in glass). If the wavelength is large compared to the encasing material thickness, then the reflection will be more dependent on the interior material. A mixture of materials that generate positive as well as negative reflections within the binder would add to the complexity of the PUF.
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公开(公告)号：US11442122B2
公开(公告)日：2022-09-13
申请号：US17012456
申请日：2020-09-04
摘要： A magnetic sensor array device is described that is constructed with multiple single sensor die, diced out of a wafer individually and packaged in a multi-chip module (MCM). The device comprises an array of multi-axis magnetic sensors that can measure the multi-dimensional magnetic field of an arbitrary sized two-dimensional region with high spatial resolution, reduced sensing distance, higher measurement throughput, tolerance to motion, improved temperature measurement, and improved yield when placed on a circuit card comprises part of an authentication system including a physical unclonable function (“PUF”), a substrate, a plurality of magnetized particles randomly dispersed in the substrate, and a PUF reader constructed using one or more of the magnetic sensor array devices wherein the PUF reader measures the magnetic field at multiple locations in close proximity to the magnetized particles. The measured magnetic field data may be compared to previously enrolled data to assess authenticity.
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