Patents Assigned to Lawrence Livermore National Security, LLC
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Patent number: 11809161Abstract: A system for determining a light intensity field for use in manufacturing a 3D object from a volume of material. The system receives a 3D specification of a 3D geometry for the 3D object that specifies voxels within the volume that contain material that is to be part of the 3D object. The system employs a cost function for effectiveness of a light intensity field in manufacturing the 3D object. The cost function may be an adjoint of an Attenuated Radon Transform that models an energy dose that each voxel would receive during manufacture of the 3D object using the light intensity field. The system applies an optimization technique that employs the cost function to generate a measure of the effectiveness of possible light intensity fields and outputs an indication of a light intensity field that will be effective in manufacturing the 3D object.Type: GrantFiled: July 13, 2020Date of Patent: November 7, 2023Assignees: Lawrence Livermore National Security, LLC, The Regents of the University of CaliforniaInventors: Maxim Shusteff, Kyle Champley, Erika Jo Fong, Hayden Taylor, Chi Chung Li, Trevor Rongey, Jr., Sui Man Luk, Heting Fu, Samira Feili, Joseph Toombs, Hossein Heidari
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Patent number: 11807946Abstract: A method of controlling macroscopic strain of a porous structure includes contacting a porous structure with a modifying agent which chemically adsorbs to a surface of the porous structure and modifies an existing surface stress of the porous structure. Additional methods and systems are also presented.Type: GrantFiled: August 30, 2018Date of Patent: November 7, 2023Assignee: Lawrence Livermore National Security, LLCInventors: Juergen Biener, Monika M. Biener, Alex V. Hamza, Marcus Baeumer, Arne Wittstock, Joerg Weissmueller, Dominik Kramer, Raghavan Nadar Viswanath
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Patent number: 11805715Abstract: A photoconductive switch that uses materials that support negative differential mobility, whose operation leverages the pulse compression of a charge could to generate the “on” time of the pulse in combination with the speed of light to generate the “off” time of the pulse, is described. In one example, a method of operating a photoconductive switch, which includes two electrodes and a light absorbing material positioned therebetween, includes selecting a value for one or more parameters comprising a voltage for generation of an electric field, a spot size of a laser pulse, a temporal pulse width of the laser pulse, or an intensity of the laser pulse, wherein the selected value(s) for the one or more parameters enable the switch to operate in a region where the light absorbing material exhibits negative differential mobility, and illuminating the light absorbing material with the laser pulse to generate a charge cloud within the light absorbing material.Type: GrantFiled: October 15, 2021Date of Patent: October 31, 2023Assignees: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC, THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOISInventors: Lars F. Voss, Adam Conway, Karen Marie Dowling, David Lawrence Hall, Shaloo Rakheja, Kexin Li
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Patent number: 11801381Abstract: The present disclosure relates to a modular system for deep brain stimulation (DBS) and electrocorticography (ECoG). The system may have an implantable neuromodulator for generating electrical stimulation signals adapted to be applied to a desired region of a brain via an attached electrode array. An aggregator module may be used for collecting and aggregating electrical signals and transmitting the electrical signals to the neuromodulator. A control module may be used which is in communication with the aggregator module for controlling generation of the electrical signals and transmitting the electrical signals to the aggregator.Type: GrantFiled: December 9, 2016Date of Patent: October 31, 2023Assignee: Lawrence Livermore National Security, LLCInventors: Satinderpall S. Pannu, Kedar G. Shah, Supin Chen, Marissa Crosetti, Timir B. Datta-Chaudhuri, Sarah H. Felix, Anna N. Ivanovskaya, Jason Jones, Kye Young Lee, Susant Patra, Vanessa Tolosa, Angela C. Tooker
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Patent number: 11801635Abstract: The present disclosure relates to an apparatus for additively manufacturing a product in a layer-by-layer sequence, wherein the product is formed using powder particles deposited on an interface layer of a substrate. A laser generates first and second beam components. The second beam component has a higher power level and a shorter duration than the first beam component. A mask creates a 2D optical pattern in which only select portions of the second beam components can irradiate the powder particles. The first beam component heats the powder particles close to a melting point, where the particles experience surface tension forces relative to the interface layer. While the particles are heated, the second beam component further heats the particles and also melts the interface layer before the surface tension forces can act on and distort the particles, enabling the particles and the interface layer are able to bond together.Type: GrantFiled: November 10, 2022Date of Patent: October 31, 2023Assignee: Lawrence Livermore National Security, LLCInventors: James A. Demuth, Andrew J. Bayramian, Eric B. Duoss, Joshua D. Kuntz, Christopher Spadaccini
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Patent number: 11798273Abstract: A system is provided for identifying and quantizing a change in a scene having objects based on comparison of features representing a target object derived from a first image and a second image that includes the target object. The system segments, based on a scene model of the scene, a second image that includes the target object to identify a second area representing the target object within the second image. The system extracts, from the second image, second features for the target object based on the second area. The system determines a second effectiveness of the second features indicating effectiveness of the second features in representing the target object. The system detects a change based on a difference between first features and the second features factoring in a first effectiveness and the second effectiveness.Type: GrantFiled: March 12, 2021Date of Patent: October 24, 2023Assignee: LAWRENCE LIVERMORE NATIONAL SECURITY, LLCInventors: Randy S. Roberts, John Goforth
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Patent number: 11796533Abstract: The disclosed technology includes a planar device for performing multiple biochemical assays at the same time, or nearly the same time. Each assay may include a biosample including a biochemical, enzyme, DNA, and/or any other biochemical or biological sample. Each assay may include one or more tags including dyes and/or other chemicals/reagents whose optical characteristics change based on chemical characteristics of the biological sample being tested. Each assay may be optically pumped to cause one or more of luminescence, phosphorescence, or fluorescence of the assay that may be detected by one or more optical detectors. For example, an assay may include two tags and a biosample. Each tag may be pumped by different wavelengths of light and may produce different wavelengths of light that is filtered and detected by one or more detectors. The pump wavelengths may be different from one another and different from the produced wavelengths.Type: GrantFiled: November 17, 2021Date of Patent: October 24, 2023Assignee: LAWRENCE LIVERMORE NATIONAL SECURITY, LLCInventors: N. Reginald Beer, Steven W. Bond
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Patent number: 11796673Abstract: A system for determining a travel path for an autonomous vehicle (“AV”) to travel to a target while avoiding objects (i.e., obstacles) without the use of an imaging system is provided. An object sense and avoid (“OSA”) system detects objects in an object field that is adjacent to the AV and dynamically generates, as the AV travels, a travel path to the target to avoid the objects. The OSA system repeatedly uses sensors to collect sensor data of any objects in the object field. An object detection system then detects the objects and determines their locations based on triangulating ranges to an object as indicated by different sensors. The path planner system then plans a next travel direction for the AV to avoid the detected objects while seeking to minimize the distance traveled. The OSA system then instructs the AV to travel in the travel direction.Type: GrantFiled: July 6, 2016Date of Patent: October 24, 2023Assignee: LAWRENCE LIVERMORE NATIONAL SECURITY, LLCInventor: Reginald N. Beer
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Patent number: 11794406Abstract: A method of forming a three-dimensional structure of liquid crystal (LC) elastomers includes contacting a resin layer of LC oligomers with a layer of photoalignment material, and exposing a portion of photoalignment material to light for aligning the portion of photoalignment material in a first orientation. The LC oligomers adjacent the illuminated portion of photoalignment material align to the first orientation of the illuminated portion. The portion of aligned LC oligomers of the resin layer are cured. Operations for forming additional layers include creating a relative movement of the resin layer away from the photoalignment material, contacting another resin layer with the photoalignment material, and exposing another portion of photoalignment material to light for aligning the photoalignment material in a different orientation.Type: GrantFiled: June 23, 2022Date of Patent: October 24, 2023Assignee: Lawrence Livermore National Security, LLCInventors: Bryan D. Moran, Elaine Lee, Caitlyn Christian Krikorian, Logan Bekker
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Patent number: 11789333Abstract: The present disclosure relates to a system for modifying temporal dispersion in an optical signal. The system makes use of a segmented array including a plurality of independently controllable, reflective optical elements. The optical elements are configured to segment a received input optical signal into a plurality of beamlets, and to reflect and steer selected ones of the plurality of beamlets in predetermined angular orientations therefrom. A variable optical dispersion subsystem is used which has a plurality of optical components configured to receive and impart different predetermined time delays to different ones of the received beamlets, and to output the plurality of beamlets therefrom.Type: GrantFiled: March 1, 2021Date of Patent: October 17, 2023Assignees: Lawrence Livermore National Security, LLC, Bright Silicon Technologies, Inc.Inventors: Robert Matthew Panas, Frank Ravizza, Robert McHenry
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Patent number: 11786883Abstract: A highly adsorptive structure includes: a substrate; and a metal-organic framework (MOF) comprising a plurality of metal atoms coordinated to a plurality of organic spacer molecules; wherein the MOF is coupled to at least one surface of the substrate, wherein the MOF is configured to adsorb and desorb a refrigerant under predetermined thermodynamic conditions. The refrigerant includes one or more materials selected from the group consisting of: acid halides, alcohols, aldehydes, amines, chlorofluorocarbons, esters, ethers, fluorocarbons, perfluorocarbons, halocarbons, halogenated aldehydes, halogenated amines, halogenated hydrocarbons, halomethanes, hydrocarbons, hydrochlorofluorocarbons, hydrofluoroethers, hydrofluoroolefins, inorganic gases, ketones, nitrocarbon compounds, noble gases, organochlorine compounds, organofluorine compounds, organophosphorous compounds, organosilicon compounds, oxide gases, refrigerant blends and thiols.Type: GrantFiled: March 11, 2021Date of Patent: October 17, 2023Assignee: Lawrence Livermore National Security, LLCInventors: Theodore F. Baumann, Joe H. Satcher, Jr., Joseph C. Farmer, Todd Bandhauer
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Patent number: 11787727Abstract: The fabrication of sleeveless canes utilizes a preform with an array of glass canes in the preform. At least one tube-sleeve encircles the array of glass canes and is secured to the array of glass canes. The array of glass canes is moved into a furnace wherein the array of glass canes is heated. The furnace is maintained at a furnace temperature within the range of 2000° C. to 1700° C. and the array of glass canes is drawn from the furnace. The drawing of the array of glass canes both scales down the glass canes and elongates the glass canes. Maintaining the furnace at a furnace temperature within the range of 2000° C. to 1700° C. assures that the array of glass canes and the glass canes maintain their original shape.Type: GrantFiled: April 18, 2018Date of Patent: October 17, 2023Assignee: Lawrence Livermore National Security, LLCInventors: Derrek Reginald Drachenberg, Michael J. Messerly, Paul H. Pax, John B. Tassano, Jr.
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Patent number: 11783464Abstract: An extended reality (“XR”) inspection system for inspecting a target is provided. The XR inspection system includes an inspection system and an XR device. The inspection system includes an inspection main unit and an inspection probe. The inspection main unit collects inspection data from the inspection probe, receives commands input by an inspector using the XR device, performs functions associated with the commands, and sends display data to the XR device. The XR device provides an augmented reality display and sensors. The XR device displays display data received from the inspection main unit, receives commands via the sensors from the inspector, and sends the commands to the inspection main unit.Type: GrantFiled: May 18, 2018Date of Patent: October 10, 2023Assignee: LAWRENCE LIVERMORE NATIONAL SECURITY, LLCInventor: Lionel Keene
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Patent number: 11783847Abstract: Various embodiments of a system and associated method for audio source separation based on generative priors trained on individual sources. Through the use of projected gradient descent optimization, the present approach simultaneously searches in the source-specific latent spaces to effectively recover the constituent sources. Though the generative priors can be defined in the time domain directly, it was found that using spectral domain loss functions leads to good-quality source estimates.Type: GrantFiled: December 29, 2021Date of Patent: October 10, 2023Assignees: Lawrence Livermore National Security, LLC, Arizona Board of Regents on Behalf of Arizona State UniversityInventors: Vivek Sivaraman Narayanaswamy, Jayaraman Thiagarajan, Rushil Anirudh, Andreas Spanias
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Patent number: 11784616Abstract: Power amplifier apparatuses and techniques for optimizing the design of power amplifiers are disclosed. In one aspect, a method for optimizing a power amplifier includes selecting a circuit topology for the power amplifier. The circuit topology includes one or more photoconductive switches and an impedance matching network including one or more parameter values representative of the impedance matching network or the photoconductive switches that can be adjusted. The method further includes selecting one or more optimization goals for the impedance matching network and the one or more photoconductive switches, and adjusting the one or more parameter values according to the one or more optimization goals. The one or more optimization goals include an efficiency at a particular power output.Type: GrantFiled: March 16, 2021Date of Patent: October 10, 2023Assignees: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC, SOCAL SIMULATIONS, LLCInventors: Tammy Chang, Adam Conway, Victor Valeryevich Khitrov, Lars Voss, Benjamin Fasenfest, Peter Asbeck
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Patent number: 11783952Abstract: Application of axial seed magnetic fields in the range 20-100 T that compress to greater than 10,000 T (100 MG) under typical NIF implosion conditions may significantly relax the conditions required for ignition and propagating burn in NIF ignition targets that are degraded by hydrodynamic instabilities. Such magnetic fields can: (a) permit the recovery of ignition, or at least significant alpha particle heating, in submarginal NIF targets that would otherwise fail because of adverse hydrodynamic instability growth, (b) permit the attainment of ignition in conventional cryogenic layered solid-DT targets redesigned to operate under reduced drive conditions, (c) permit the attainment of volumetric ignition in simpler, room-temperature single-shell DT gas capsules, and (d) ameliorate adverse hohlraum plasma conditions during laser drive and capsule compression. In general, an applied magnetic field should always improve the ignition condition for any NIF ignition target design.Type: GrantFiled: December 14, 2021Date of Patent: October 10, 2023Assignee: Lawrence Livermore National Security, LLCInventors: Lindsay John Perkins, Jim H. Hammer, John H. Moody, Max Tabak, Burl Grant Logan
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Patent number: 11783518Abstract: A system for generating 2D slices of a 3D image of a target volume is provided. The system receives a target sinogram collected during a computed tomography scan of the target volume. The system inputs the target sinogram to a convolutional neural network (CNN) to generate predicted 2D slices of the 3D image. The CNN is trained using training 2D slices of training 3D images. The system initializes 2D slices to the predicted 2D slices. The system reconstructs 2D slices of the 3D image from the target sinogram and the initialized 2D slices.Type: GrantFiled: September 30, 2020Date of Patent: October 10, 2023Assignee: LAWRENCE LIVERMORE NATIONAL SECURITY, LLCInventors: Hyojin Kim, Rushil Anirudh, Kyle Champley
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Patent number: 11771435Abstract: An embodiment of the invention includes an expandable implant to endovascularly embolize an anatomical void or malformation, such as an aneurysm. An embodiment is comprised of a chain or linked sequence of expandable polymer foam elements. Another embodiment includes an elongated length of expandable polymer foam coupled to a backbone. Another embodiment includes a system for endovascular delivery of an expandable implant (e.g., shape memory polymer) to embolize an aneurysm. The system may include a microcatheter, a lumen-reducing collar coupled to the distal tip of the microcatheter, a flexible pushing element detachably coupled to an expandable implant, and a flexible tubular sheath inside of which the compressed implant and pushing element are pre-loaded. Other embodiments are described herein.Type: GrantFiled: January 22, 2021Date of Patent: October 3, 2023Assignees: Lawrence Livermore National Security, LLC, The Texas A&M University SystemInventors: Thomas S. Wilson, Ward Small, IV, William J. Benett, Jason M. Ortega, Duncan J. Maitland, Jonathan Hartman
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Patent number: 11773627Abstract: A lockout padlock controls access to a hazardous energy source control box. The control box has a box body and a door that closes the box body. The door has an aperture. A staple is connected to the box body and the staple extends through the aperture in the door of the control box. A first lockout hinge part has a first lockout hinge part padlock hole. A second lockout hinge part has a second lockout hinge part padlock hole. The first lockout hinge part and the second lockout hinge part are position together to form a padlock pocket. A first padlock is positioned and locked in the staple. The first padlock is positioned in said padlock pocket and covered by said first lockout hinge part and said second lockout hinge part. A second padlock is positioned in the first lockout hinge part padlock hole and in said second lockout hinge part padlock hole.Type: GrantFiled: December 26, 2019Date of Patent: October 3, 2023Assignee: Lawrence Livermore National Security, LLCInventors: Dione Ancheta, Raymond A. Swan
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Patent number: 11772087Abstract: A membrane includes a first layer, and a second layer coupled to the first layer. The second layer includes a network of catalytic sites, each catalytic site having a catalytic center characterized by promoting a chemical reaction of a target material. A method of forming a chemically reactive membrane includes applying a first solution to a structure, the first solution includes a macrocyclic ligand having electron-donating ligands and a side functional group for crosslinking, crosslinking a plurality of the macrocyclic ligand to form a first network of crosslinked macrocyclic ligands, and applying a second solution to the structure, the second solution comprising a catalytic center. Each catalytic center complexes with the electron-donating ligands of each macrocyclic ligand to form catalytic sites in the first network of crosslinked macrocyclic ligands.Type: GrantFiled: September 1, 2020Date of Patent: October 3, 2023Assignee: Lawrence Livermore National Security, LLCInventors: Francesco Fornasiero, Edmond Y. Lau, Carlos A. Valdez