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公开(公告)号：US20210020039A1
公开(公告)日：2021-01-21
申请号：US17041576
申请日：2019-03-28
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Justin M. Johnson , James W. Howard , Subhalakshmi M. Falknor
Abstract: In some examples, a computing device may store a temporary traffic control zone compliance set (TTCZCS) comprising a set of indications of traffic control features for a temporary traffic control zone, wherein the set of indications of traffic control features represent that the temporary traffic control zone is compliant with at least one criterion; receive a set of indications of infrastructure articles from a set of sensors that detect the infrastructure articles in the traffic control zone; detect non-compliance of the at least one criterion based on an indication at least one infrastructure article in the temporary traffic control zone and at least one indication of a traffic control feature that corresponds to the infrastructure article; and perform at least one operation based on detection of the non-compliance of the at least one criterion for the temporary traffic control zone.
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公开(公告)号：US10816495B2
公开(公告)日：2020-10-27
申请号：US16470064
申请日：2017-12-15
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Christopher R. Yungers , Subhalakshmi M. Falknor , David H. Redinger
Abstract: An armor piece may include a tested material. The armor piece also may include a plurality of electrical contacts distributed about and electrically connected to the tested material. The armor piece further may include a non-volatile memory (NVM) device. The NVM device may be hardened against exposure to x-ray radiation. The NVM device may be configured to store control voltages associated with respective electrical contacts of the plurality of electrical contacts.
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公开(公告)号：US20250001221A1
公开(公告)日：2025-01-02
申请号：US18578748
申请日：2022-07-05
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Muhammad J. Afridi , Subhalakshmi M. Falknor , Wei Zhao , Ambuj Sharma , Vahid Mirjalili , Caroline M. Ylitalo , Philip D. Eitzman , Marie D. Manner
IPC: A62B27/00
Abstract: A fit detection system for a respiratory protection device is presented. The system includes a camera that captures an image sequence of a user wearing the respiratory protection device. The system also includes a feature extractor that analyzes the image sequence and extracts features from the image sequence. The system also includes a fit score calculator that analyzes the extracted features and calculates a fit score indicative of how well the respiratory protection device fits the user. The system also includes a communication component that communicates the fit score.
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公开(公告)号：US11255807B2
公开(公告)日：2022-02-22
申请号：US16461423
申请日：2017-11-15
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Abstract: A measurement system may include control electronics; an electrical signal source; a plurality of measurement system electrical contacts; at least one feature for repeatably electrically connecting the plurality of measurement system electrical contacts to selected locations of a tested material. The control electronics may be configured to cause the electrical signal source to output an electrical signal; determine a measured voltage in response to the electrical signal using a measurement electrical contact from the plurality of measurement system electrical contacts. The measurement electrical contact is electrically coupled to the tested material. The control electronics also may be configured to determine whether the tested material includes a crack or other defect based on the measured voltage.
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公开(公告)号：US11105762B2
公开(公告)日：2021-08-31
申请号：US16469955
申请日：2017-12-15
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Christopher R. Yungers , Subhalakshmi M. Falknor , David H. Redinger
Abstract: A measurement system may include a set of drive electrical contacts including a force electrical contact and a return electrical contact electrically coupled to a tested material, a measurement electrical contact electrically coupled to the tested material, a return node, a voltage source, and a control module. A circuit path between the voltage source and the return node may include a fixed resistor and the tested material. The control module may be configured to cause the voltage source to apply a voltage signal to the force electrical contact, cause a voltage drop across the fixed resistor to be measured, cause a measured voltage to be measured using the measurement electrical contact, determine a measured equivalent impedance of the tested material associated with the measurement electrical contact based on the voltage drop across the fixed resistor and the measured voltage, and determine whether the tested material includes a crack or other defect based on the measured equivalent impedance.
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Patent Agency Ranking
公开(公告)号：US12026862B2
公开(公告)日：2024-07-02
申请号：US17640440
申请日：2020-10-08
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Christopher R. Yungers , Nathan A. Christopherson , Jonathan D. Gandrud , Justin M. Johnson , Subhalakshmi M. Falknor
CPC classification number: G06T5/92 , G06K7/1413 , G06T7/11 , G06T7/136 , G06T7/90 , G06T2207/10016 , G06T2207/10024 , G06T2207/30204 , G06V10/28
Abstract: At least some embodiments of the present disclosure directs to a method for processing an input image having an embedded element, comprising the steps of: computing one or more histograms of the input image; identifying a range of interest in one of the one or more histograms; and determining, by the processor, a threshold based on the range of interest. In some embodiments, a computing device processes the input image using the threshold to generate an output image.
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公开(公告)号：US20220343092A1
公开(公告)日：2022-10-27
申请号：US17640440
申请日：2020-10-08
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Christopher R. Yungers , Nathan A. Christopherson , Jonathan D. Gandrud , Justin M. Johnson , Subhalakshmi M. Falknor
Abstract: At least some embodiments of the present disclosure directs to a method for processing an input image having an embedded element, comprising the steps of: computing one or more histograms of the input image; identifying a range of interest in one of the one or more histograms; and determining, by the processor, a threshold based on the range of interest. In some embodiments, a computing device processes the input image using the threshold to generate an output image.
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公开(公告)号：US11112374B2
公开(公告)日：2021-09-07
申请号：US16469900
申请日：2017-12-15
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Christopher R. Yungers , Subhalakshmi M. Falknor , David H. Redinger , Ronald D. Jesme , Eric M. Chinnock
IPC: G01N27/20
Abstract: A method may include coupling a first electrical connector of an article to a second electrical connector of a measurement device. The article may include a tested material, the first electrical connector, and a plurality of electrical contacts electrically connected to the first electrical connector. The measurement device may include a power source and a user interface. The method also may include causing, by a controller, an electrical signal to be applied to a pair of drive electrical contacts from the plurality of electrical contacts. The method further may include receiving, by the controller, from an analog-to-digital converter, a measured voltage measured using a measurement electrical contact from the plurality of electrical contacts. The method also may include determining, by the controller, whether the tested material includes a crack or other defect based on the measured voltage.
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公开(公告)号：US20190323980A1
公开(公告)日：2019-10-24
申请号：US16469900
申请日：2017-12-15
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Christopher R. Yungers , Subhalakshmi M. Falknor , David H. Redinger , Ronald D. Jesme , Eric M. Chinnock
IPC: G01N27/20
Abstract: A method may include coupling a first electrical connector of an article to a second electrical connector of a measurement device. The article may include a tested material, the first electrical connector, and a plurality of electrical contacts electrically connected to the first electrical connector. The measurement device may include a power source and a user interface. The method also may include causing, by a controller, an electrical signal to be applied to a pair of drive electrical contacts from the plurality of electrical contacts. The method further may include receiving, by the controller, from an analog-to-digital converter, a measured voltage measured using a measurement electrical contact from the plurality of electrical contacts. The method also may include determining, by the controller, whether the tested material includes a crack or other defect based on the measured voltage.
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公开(公告)号：US11371952B2
公开(公告)日：2022-06-28
申请号：US16949169
申请日：2020-10-16
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Christopher R. Yungers , Subhalakshmi M. Falknor , David H. Redinger
Abstract: An armor piece may include a tested material. The armor piece also may include a plurality of electrical contacts distributed about and electrically connected to the tested material. The armor piece further may include a non-volatile memory (NVM) device. The NVM device may be hardened against exposure to x-ray radiation. The NVM device may be configured to store control voltages associated with respective electrical contacts of the plurality of electrical contacts.
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