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公开(公告)号：US20220176727A1
公开(公告)日：2022-06-09
申请号：US17542406
申请日：2021-12-04
发明人： JAMES HOWARD ELLIS , KEITH BRYAN HARDIN , ROBERT HENRY MUYSKENS , MITCHELL RAY ROWLETTE , CARL EDMOND SULLIVAN
IPC分类号： B42D25/369 , G09F3/00 , B41M7/00 , B41M3/14
摘要： In the invention described, a method of creating a unique tag or labeling system for electronic printed circuit board assemblies (PCBA) that is unique, virtually un-duplicatable, and may be altered when the electronics are tampered with.
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公开(公告)号：US20200302134A1
公开(公告)日：2020-09-24
申请号：US16811418
申请日：2020-03-06
摘要： Unique physical unclonable function objects are created by molding pre-magnetized or post-magnetized particles into a resin. The particles form a unique physical “fingerprint” based on the random particle size, position, polar rotation, magnetization level, particle density, etc. This invention addresses devices for accurately measuring the physical fingerprint of a PUF, specifically including the X, Y, & Z components of the magnetic field at enough discrete points on the PUF to allow a confident recognition of the identification. A handheld wand is described for measuring the magnetic field along an arbitrary path.
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公开(公告)号：US20210334052A1
公开(公告)日：2021-10-28
申请号：US16822365
申请日：2020-03-18
发明人： SCOTT RICHARD CASTLE , GARY ALLEN DENTON , ROBERT HENRY MUYSKENS , SAMUEL LEO RHODUS , BRANT DENNIS NYSTROM , CARL EDMOND SULLIVAN
摘要： A physical unclonable function (“PUF”) object can be used to encode the geography or region in which device to which the PUF is attached may operate. Disclosed are two potential ways to regionalize a device using a PUF disk: placing the magnetic sensor at a different radius depending on the region or geography intended for sale; and altering the magnetic structure of the disk to magnetically encode the region into the sensor data.
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公开(公告)号：US20200300002A1
公开(公告)日：2020-09-24
申请号：US16823621
申请日：2020-03-19
发明人： SCOTT RICHARD CASTLE , GARY ALLEN DENTON , JAMES PAUL DRUMMOND , KEITH BRYAN HARDIN , KELLY ANN KILLEEN , ROBERT HENRY MUYSKENS , BRANT DENNIS NYSTROM
摘要： The invention relates generally a device that authenticates a user, operator, or object using multiple factors, thus decreasing the likelihood of unauthorized use. These factors preferably are independent from each other and difficult to defeat. By combining a mechanical key with a number of physically unclonable functions (PUF), the resulting system may be impossible to duplicate or defeat. The addition of the PUF can be deployed to mechanical keys or RFID's of different types without reducing the functionality of the first factors operation.
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公开(公告)号：US20230031762A1
公开(公告)日：2023-02-02
申请号：US17964479
申请日：2022-10-12
发明人： SCOTT RICHARD CASTLE , TRISTAN SANTOS DALAY , ROBERT HENRY MUYSKENS , NEILSON GUTAY NAVARRETE , BRANT DENNIS NYSTROM , THOMAS EUGENE PANGBURN , SAMUEL LEO RHODUS
摘要： Unique Physical Unclonable (PUF) function objects may be created by molding or extruding specialized particles creating a measurable physical characteristic over a surface. The magnetized particles form a unique measurable magnetic “fingerprint” based on the random size, position, polar rotation, magnetization level, particle density, etc., of the particles. PUF objects may also vary in other physical characteristics by having a mixture of magnetic, conductive (magnetic or nonmagnetic), optically reflective or shaped, varied densities or mechanical properties resulting in random reflection, diffusion, or absorption of acoustical energy particles in a matrix or binder. The present invention envisions sensing any of the characteristics.
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公开(公告)号：US20220271954A1
公开(公告)日：2022-08-25
申请号：US17684294
申请日：2022-03-01
发明人： SCOTT RICHARD CASTLE , GARY ALLEN DENTON , ROBERT HENRY MUYSKENS , SAMUEL LEO RHODUS , BRANT DENNIS NYSTROM
摘要： Magnetic PUFs (Physical Unclonable Function) may utilizes a single 3-axis Hall-effect sensor for enrollment. When a PUF is manufactured, a Hall-effect sensor is used to model the PUF disk and store that data where it may be accessed. This process is called “enrollment.” This invention improves upon the PUF implementation by introducing controlled variability into the enrollment, the reading of the PUF data from the Hall-effect sensors (the number and position of read sensors), the sampling method of the read sensor(s), and the processing of the PUF data.
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公开(公告)号：US20200304323A1
公开(公告)日：2020-09-24
申请号：US16822355
申请日：2020-03-18
发明人： SCOTT RICHARD CASTLE , GARY ALLEN DENTON , ROBERT HENRY MUYSKENS , SAMUEL LEO RHODUS , BRANT DENNIS NYSTROM
IPC分类号： H04L9/32
摘要： Magnetic PUFs (Physical Unclonable Function) may utilizes a single 3-axis Hall-effect sensor for enrollment. When a PUF is manufactured, a Hall-effect sensor is used to model the PUF disk and store that data where it may be accessed. This process is called “enrollment.” This invention improves upon the PUF implementation by introducing controlled variability into the enrollment, the reading of the PUF data from the Hall-effect sensors (the number and position of read sensors), the sampling method of the read sensor(s), and the processing of the PUF data.
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公开(公告)号：US20200304322A1
公开(公告)日：2020-09-24
申请号：US16822347
申请日：2020-03-18
摘要： The use of a magnetic particle based “PUF” (Physically Unclonable Function) disk, when read by magnetic sensor(s), as a positional encoder is described. It is often necessary to include a linear or rotary encoder within a device for tracking motor movements, or to enable a closed-loop control algorithm on the motor system. These randomly dispersed magnetic particle disks can be used as a positional encoder, where the speed of movement and the direction of movement may be monitored.
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公开(公告)号：US20230030797A1
公开(公告)日：2023-02-02
申请号：US17964445
申请日：2022-10-12
发明人： SCOTT RICHARD CASTLE , TRISTAN SANTOS DALAY , ROBERT HENRY MUYSKENS , NEILSON GUTAY NAVARRETE , BRANT DENNIS NYSTROM , THOMAS EUGENE PANGBURN , SAMUEL LEO RHODUS
摘要： Unique Physical Unclonable (PUF) function objects may be created by molding or extruding specialized particles creating a measurable physical characteristic over a surface. The magnetized particles form a unique measurable magnetic “fingerprint” based on the random size, position, polar rotation, magnetization level, particle density, etc., of the particles. PUF objects may also vary in other physical characteristics by having a mixture of magnetic, conductive (magnetic or nonmagnetic), optically reflective or shaped, varied densities or mechanical properties resulting in random reflection, diffusion, or absorption of acoustical energy particles in a matrix or binder. The present invention envisions sensing any of the characteristics.
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公开(公告)号：US20220094562A1
公开(公告)日：2022-03-24
申请号：US17541003
申请日：2021-12-02
摘要： The use of a magnetic particle based “PUF” (Physically Unclonable Function) disk, when read by magnetic sensor(s), as a positional encoder is described. It is often necessary to include a linear or rotary encoder within a device for tracking motor movements, or to enable a closed-loop control algorithm on the motor system. These randomly dispersed magnetic particle disks can be used as a positional encoder, where the speed of movement and the direction of movement may be monitored.
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