Patents by Inventor Keith Bryan
Keith Bryan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20250046297Abstract: Sound or video systems are used to deliver predetermined content to a customer audience. It is important to validate that the intended material is being received and understood by the targeted audience. Sound or video system service providers prove their value by providing feedback metrics that the system is working as expected. The present invention automates and enhances this process and makes the validation continuous for constant validation at a much lower cost. Enhancements creates metrics beyond a human's ability to discern the quality of the service. The also includes features that can automatically determine the cause and recommended solution if the system's performance is not as expected. The metrics are then aggregated for full system wide operation in a graphical and tabular analytic interface.Type: ApplicationFiled: August 2, 2024Publication date: February 6, 2025Inventors: PETER STEWART DAVIDSON, JR., KEITH BRYAN HARDIN, MICHAEL JAMES HAROLD HOLMES, ROBERT HENRY MUYSKENS
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Patent number: 11951759Abstract: 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.Type: GrantFiled: September 2, 2022Date of Patent: April 9, 2024Assignee: LEXMARK INTERNATIONAL, INC.Inventor: Keith Bryan Hardin
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Patent number: 11856059Abstract: A lighting fixture includes a solid-state light source, communications circuitry, a memory, and processing circuitry. The memory stores common security credentials, wherein the common security credentials are pre-installed during a factory calibration process. The processing circuitry is coupled to the solid-state light source, the communications circuitry, and the memory. The processing circuitry is configured to cause the solid-state light source to provide a desired light output. Further, the processing circuitry is configured to join a common network using the common security credentials, wherein only devices with the common security credentials are permitted to join the network.Type: GrantFiled: July 20, 2020Date of Patent: December 26, 2023Assignee: IDEAL Industries Lighting LLCInventors: John Barile, Keith Bryan, Matthew Brian Deese
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Patent number: 11849512Abstract: A lighting fixture having a light source, a light sensor, a communication interface, and circuitry is described. In addition to controlling the light source, the circuitry is adapted to monitor for a light signal provided from a handheld device via the light sensor; upon receiving the light signal, measure a signal level associated with the light signal; and effect transmission of the signal level to the handheld device via the communication interface. In one embodiment, the circuitry is further configured to receive an instruction to monitor for the light signal from the handheld device via the communication interface such that the circuitry begins monitoring for the light signal upon receiving the instruction.Type: GrantFiled: August 14, 2020Date of Patent: December 19, 2023Assignee: IDEAL Industries Lighting LLCInventors: Brian Carrigan, John J. Trainor, Joseph P. Chobot, Matthew Deese, Keith Bryan
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Patent number: 11792898Abstract: An area lamp includes an emitter array and driver circuitry. The emitter array includes a number of solid-state light emitters. Each one of the solid-state light emitters is configured to provide light suitable for general illumination within a field of view such that light emitted from a first subset of the number of solid-state light emitters is provided to a different portion of the field of view than light emitted from a second subset of the number of solid-state light emitters. The driver circuitry is coupled to the emitter array and configured to provide drive signals to the emitter array such that the light provided from each one of the solid-state light emitters is independently controllable and a number of drive signals is less than the number of solid-state light emitters.Type: GrantFiled: October 14, 2021Date of Patent: October 17, 2023Assignee: IDEAL Industries Lighting LLCInventors: Christopher P. Hussell, Brian Carrigan, John J. Trainor, Joseph P. Chobot, Matthew Deese, Keith Bryan
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Patent number: 11686754Abstract: Described is an invention that adds capacitive sensing ability with a single magnetic field sensor location or distributed within an array of surfaces of the sensor. The capacitive sensing can be achieved by modifying a classic Hall effect sensor or putting separate capacitive sensor plates in close proximity to the hall effect sensor.Type: GrantFiled: September 2, 2021Date of Patent: June 27, 2023Assignee: Lexmark International, Inc.Inventors: James Howard Ellis, Jr., Keith Bryan Hardin
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Publication number: 20230110624Abstract: 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.Type: ApplicationFiled: December 14, 2022Publication date: April 13, 2023Inventors: John Douglas Anderson, Scott Richard Castle, Keith Bryan Hardin, Robert Henry Muyskens
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Publication number: 20230114075Abstract: 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.Type: ApplicationFiled: December 14, 2022Publication date: April 13, 2023Inventors: John Douglas Anderson, Scott Richard Castle, Keith Bryan Hardin, Robert Henry Muyskens
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Patent number: 11543472Abstract: A magnetic sensor array device is comprised of an array of magnetic sensors arranged on a common semiconductor substrate to measure the multi-axis magnetic field of an arbitrary sized region at high speed with high spatial resolution and high magnetic resolution. This invention further improves a multi-axis magnetic sensor array device fabricated on a common semiconductor substrate with additional optimizations to provide for variable spatial resolution, variable magnetic resolution, and a novel secret key derivation.Type: GrantFiled: September 2, 2021Date of Patent: January 3, 2023Assignee: LEXMARK INTERNATIONAL, INC.Inventors: James Howard Ellis, Jr., Keith Bryan Hardin
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Publication number: 20220410612Abstract: 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.Type: ApplicationFiled: September 2, 2022Publication date: December 29, 2022Inventor: Keith Bryan Hardin
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Patent number: 11522694Abstract: 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.Type: GrantFiled: February 24, 2021Date of Patent: December 6, 2022Assignee: Lexmark International, Inc.Inventors: Scott Richard Castle, Alexander Lloyd Chapman, Keith Bryan Hardin
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Patent number: 11442122Abstract: 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.Type: GrantFiled: September 4, 2020Date of Patent: September 13, 2022Assignee: Lexmark International, Inc.Inventors: James Howard Ellis, Jr., Keith Bryan Hardin
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Publication number: 20220244323Abstract: A magnetic sensor device with an array of magnetic sensors arranged on a common semiconductor substrate to measure the multi-axis magnetic field of an arbitrary region with high spatial resolution, reduced sensing distance, higher measurement throughput, motion tolerance, temperature tolerance, and improved manufacturing yield. A multi-axis magnetic sensor array device fabricated on a common semiconductor substrate is optimized offering additional improvements to reduce measurement time, increase spatial resolution uniformity, and lower thermal compensation cost. Further, the central area of a surface is utilized to measure the normal magnetic field. A perimeter of Hall effect plates measuring the components of the magnetic field in the plane of the measuring surface, which allows for a very high density of normal field measurements allows calculation of the in-plane field components. Error along the edges can be mitigated with the in-plane measured components.Type: ApplicationFiled: March 5, 2021Publication date: August 4, 2022Inventors: JAMES HOWARD ELLIS, JR., KEITH BRYAN HARDIN
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Patent number: 11390005Abstract: 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.Type: GrantFiled: November 13, 2018Date of Patent: July 19, 2022Assignee: Lexmark International, Inc.Inventors: Keith Bryan Hardin, Zachary Charles Nathan Kratzer, Qing Zhang
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Publication number: 20220176727Abstract: 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.Type: ApplicationFiled: December 4, 2021Publication date: June 9, 2022Inventors: JAMES HOWARD ELLIS, KEITH BRYAN HARDIN, ROBERT HENRY MUYSKENS, MITCHELL RAY ROWLETTE, CARL EDMOND SULLIVAN
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Patent number: 11346903Abstract: A magnetic sensor array device is described that is constructed with multiple single sensor die, diced out of a wafer as a group 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.Type: GrantFiled: September 4, 2020Date of Patent: May 31, 2022Assignee: Lexmark International, Inc.Inventors: James Howard Ellis, Keith Bryan Hardin, William Pohl Corbett, Jr.
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Patent number: 11340312Abstract: 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.Type: GrantFiled: September 4, 2020Date of Patent: May 24, 2022Assignee: Lexmark International, Inc.Inventors: James Howard Ellis, Keith Bryan Hardin, William Pohl Corbett, Jr.
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Publication number: 20220120828Abstract: A magnetic sensor device with an array of magnetic sensors arranged on a common semiconductor substrate to measure the multi-axis magnetic field of an arbitrary region with high spatial resolution, reduced sensing distance, higher measurement throughput, motion tolerance, temperature tolerance, and improved manufacturing yield. A multi-axis magnetic sensor array device fabricated on a common semiconductor substrate is optimized offering additional improvements to reduce measurement time, increase spatial resolution uniformity, and lower thermal compensation cost. Further, the central area of a surface is utilized to measure the normal magnetic field. A perimeter of Hall effect plates measuring the components of the magnetic field in the plane of the measuring surface, which allows for a very high density of normal field measurements allows calculation of the in-plane field components. Error along the edges can be mitigated with the in-plane measured components.Type: ApplicationFiled: December 30, 2021Publication date: April 21, 2022Inventors: JAMES HOWARD ELLIS, JR., KEITH BRYAN HARDIN
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Publication number: 20220065910Abstract: Described is an invention that adds capacitive sensing ability with a single magnetic field sensor location or distributed within an array of surfaces of the sensor. The capacitive sensing can be achieved by modifying a classic Hall effect sensor or putting separate capacitive sensor plates in close proximity to the hall effect sensor.Type: ApplicationFiled: September 2, 2021Publication date: March 3, 2022Inventors: James Howard Ellis, JR., Keith Bryan Hardin
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Publication number: 20220070982Abstract: An area lamp includes an emitter array and driver circuitry. The emitter array includes a number of solid-state light emitters. Each one of the solid-state light emitters is configured to provide light suitable for general illumination within a field of view such that light emitted from a first subset of the number of solid-state light emitters is provided to a different portion of the field of view than light emitted from a second subset of the number of solid-state light emitters. The driver circuitry is coupled to the emitter array and configured to provide drive signals to the emitter array such that the light provided from each one of the solid-state light emitters is independently controllable and a number of drive signals is less than the number of solid-state light emitters.Type: ApplicationFiled: October 14, 2021Publication date: March 3, 2022Inventors: Christopher P. Hussell, Brian Carrigan, John J. Trainor, Joseph P. Chobot, Matthew Deese, Keith Bryan