Patents Assigned to HRL Laboratories
-
Patent number: 11988727Abstract: A magnetic gradiometer sensor comprising a substrate with at least a pair of resonators disposed thereon, wherein each of the at least a pair of resonators is coated with a magnetostrictive film. The resonators are preferably connected to sustaining circuits to form oscillators and the oscillators are preferably used within a phase lock loop to detect a difference in the magnetic field between the at least a pair of resonators.Type: GrantFiled: July 17, 2020Date of Patent: May 21, 2024Assignee: HRL LABORATORIES, LLCInventors: Randall L. Kubena, Walter S. Wall
-
Patent number: 11988907Abstract: An electric field-controlled refractive index tunable device includes a phase change correlated transition metal oxide layer, and E-field responsive charge dopants. The E-field responsive charge dopants either accumulate in the phase change correlated transition metal oxide layer or are depleted from the phase change correlated transition metal oxide layer in response to an E-field applied to the phase change correlated transition metal oxide layer.Type: GrantFiled: March 25, 2021Date of Patent: May 21, 2024Assignee: HRL LABORATORIES, LLCInventors: Kyung-Ah Son, Jeong-Sun Moon, Hwa Chang Seo, Richard M. Kremer, Ryan G. Quarfoth
-
Patent number: 11978789Abstract: Presented is a lateral fin static induction transistor including a semi conductive substrate, source and drain regions extending from an optional buffer layer of same or varied thickness supported by the semi conductive substrate, a semi conductive channel electrically coupling the source region to the drain region of the transistor, a portion of the semi conductive channel being a fin and having a face covered by a gated structure, thereby defining a gated channel within the semi conductive channel, the semi conductive channel further including a drift region electrically coupling the gated channel to the drain region of the transistor.Type: GrantFiled: October 1, 2020Date of Patent: May 7, 2024Assignee: HRL LABORATORIES, LLCInventor: Biqin Huang
-
Patent number: 11972970Abstract: An array of III-V material transistors singulated from a Si or SiC wafer disposed on a stretchable tape compatible with pick and place tools and a method of forming same.Type: GrantFiled: June 28, 2021Date of Patent: April 30, 2024Assignee: HRL LABORATORIES, LLCInventors: Florian G. Herrault, Joel Wong
-
Publication number: 20240136429Abstract: A transition metal dichalcogenide (TMD) transistor includes a substrate, an n-type two-dimensional (2D) TMD layer, a metal source electrode, a metal drain electrode, and a gate dielectric. The substrate has a top portion that is an insulating layer, and the n-type 2D TMD layer is on the insulating layer. The metal source electrode, the metal drain electrode, and the gate dielectric are on the n-type 2D TMD layer. The metal gate electrode is on top of the gate dielectric and is between the metal source electrode and the metal drain electrode.Type: ApplicationFiled: October 18, 2022Publication date: April 25, 2024Applicant: HRL Laboratories, LLCInventors: Kyung-Ah SON, Jeong-Sun MOON, Hwa Chang SEO
-
Publication number: 20240128367Abstract: A HEMT comprising a channel layer of a first III-Nitride semiconductor material, grown on a N-polar surface of a back barrier layer of a second III-Nitride semiconductor material; the second III-Nitride semiconductor material having a larger band gap than the first III-Nitride semiconductor material, such that a positively charged polarization interface and two-dimensional electron gas is obtained in the channel layer; a passivation, capping layer, of said first III-Nitride semiconductor material, formed on top of and in contact with a first portion of a N-polar surface of said channel layer; a gate trench traversing the passivation, capping layer, and ending at said N-polar surface of said channel layer; and a gate conductor filling said gate trench.Type: ApplicationFiled: December 22, 2023Publication date: April 18, 2024Applicant: HRL Laboratories, LLCInventors: Daniel DENNINGHOFF, Andrea CORRION, Fevzi ARKUN, Micha FIREMAN
-
Patent number: 11958088Abstract: Some variations provide an atomic instrument configured with an optically transparent and electrochemically cleanable window, comprising: a transparent first electrode; a second electrode with an atom reservoir for first metal ions; an ion conductor interposed between the first electrode and a second electrode, wherein the ion conductor is capable of transporting second metal ions, wherein the ion conductor is in contact with the first electrode and with the second electrode, and wherein the ion conductor is optically transparent; and a transparent window support in contact with the ion conductor, wherein the electrochemically cleanable window is optically transparent, wherein the transparent window support, the ion conductor, and the first electrode collectively form a transparent and electrochemically cleanable window.Type: GrantFiled: April 29, 2022Date of Patent: April 16, 2024Assignee: HRL Laboratories, LLCInventor: Christopher S. Roper
-
Patent number: 11953801Abstract: A solid state optical beam steering device including a body of electro-optical material wherein the body of electro-optical material comprises any material of a class of hydrogen-doped phase-change metal oxide and wherein the body has a first face and a second face opposite the first face, a first transparent resistive sheet on the first face of the body of electro optic material, wherein the first transparent resistive sheet has a first side and a second side, and a transparent conductor on the second face of the body of electro optic material, wherein the transparent conductor is coupled to the second side of the first transparent resistive sheet.Type: GrantFiled: March 19, 2021Date of Patent: April 9, 2024Assignee: HRL LABORATORIES, LLCInventors: Richard Kremer, Kyung-Ah Son, Jeong-Sun Moon, Ryan Quarfoth
-
Patent number: 11949150Abstract: Tethered Unmanned Aircraft Antenna utilizing a Vertical Take Off and Landing (VTOL) Unmanned Aerial System (UAS) which may be provided by quadcopter drone (for example) constrained by a tether connected at one end to a maritime or land-based platform, the tether also being used as a RF antenna. The tether is capable of transmitting DC power to the UAS or drone at a desired antenna height and simultaneously supports RF transmission power with the help of a DC power isolation circuit. The tether is desirously lightweight and corona resistant.Type: GrantFiled: May 20, 2021Date of Patent: April 2, 2024Assignee: HRL LABORATORIES, LLCInventors: Christopher P. Henry, Walter S. Wall, Carson White, Richard Berg
-
Patent number: 11941870Abstract: Described is a system for action recognition error detection and correction using probabilistic signal temporal logic. The system is initiated by training an action recognition system to generate true positive (TP)/false positive (FP) axioms. Thereafter, the system ca be used to classify one or more actions in a video sequence as true action classifications by using the TP/FP axioms to remove false action classifications. With the remaining true classifications, a device can be controlled given the situation and relevant true classification.Type: GrantFiled: March 18, 2022Date of Patent: March 26, 2024Assignee: HRL LABORATORIES, LLCInventors: Hyukseong Kwon, Amit Agarwal, Kevin Lee, Amir M. Rahimi, Alexie Pogue, Rajan Bhattacharyya
-
Patent number: 11939429Abstract: Infrared-transparent polymers, useful for LWIR and/or MWIR transparency, are disclosed. The disclosed infrared-transparent polymers are low-cost, damage-resistant, and economically scalable to commercially relevant substrate areas (1 ft2 and greater). In some disclosed infrared-transparent polymers, the carbon-free polymer backbone contains a plurality of polymer repeat units of the form wherein R1 is selected from the group consisting of alkyls, hydroxyl, amino, urea, thiol, thioether, amino alkyls, carboxylates, metals, metal-containing groups, and deuterated forms or combinations thereof; wherein R2 is (independently from R1) selected from the group consisting of alkyls, hydroxyl, amino, urea, thiol, thioether, amino alkyls, carboxylates, metals, metal-containing groups, and deuterated forms or combinations thereof; wherein n is selected from 2 to about 10,000; and wherein the carbon-free polymer backbone is linear, cyclic, branched, or a combination thereof.Type: GrantFiled: May 30, 2019Date of Patent: March 26, 2024Assignee: HRL Laboratories, LLCInventors: Adam F. Gross, Ashley M. Dustin, Andrew P. Nowak, April R. Rodriguez
-
Patent number: 11942681Abstract: A system for subsurface transmission includes an array of very low frequency (VLF) transmitter nodes supported by semi-autonomous maritime, airborne, or space platforms spaced at regular intervals from their nearest neighbors and phased to localize VLF coverage to some desired area on a body of water.Type: GrantFiled: March 21, 2023Date of Patent: March 26, 2024Assignee: HRL LABORATORIES, LLCInventors: Carson R. White, Walter S. Wall
-
Patent number: 11929186Abstract: In some variations, an interferometric frequency-reference apparatus comprises: an atom source configured to supply neutral atoms; a collimator configured to form a collimated beam of the neutral atoms; one or more probe lasers; and a Doppler laser configured to determine a ground-state population of the neutral atoms. Other variations provide a method of creating a stable frequency reference, comprising: forming a collimated beam of neutral atoms; illuminating the neutral atoms with first and second probe lasers; adjusting the frequencies of the first probe laser and second probe laser using Ramsey spectroscopy to an S?D transition of the neutral atoms; and determining a ground-state population of the neutral atoms with another laser. The interferometric frequency-reference apparatus may provide an optical frequency reference or a microwave frequency reference.Type: GrantFiled: March 13, 2023Date of Patent: March 12, 2024Assignee: HRL Laboratories, LLCInventors: Travis Autry, Ian Counts, Jennifer Ellis, Danny Kim, Christopher Roper
-
Patent number: 11928585Abstract: Described is a system for training a neural network for estimating surface normals for use in operating an autonomous platform. The system uses a parallelizable k-nearest neighbor sorting algorithm to provide a patch of points, sampled from the point cloud data, as input to the neural network model. The points are transformed from Euclidean coordinates in a Euclidean space to spherical coordinates. A polar angle of a surface normal of the point cloud data is estimated in the spherical coordinates. The trained neural network model is utilized on the autonomous platform, and the estimate of the polar angle of the surface normal is used to guide operation of the autonomous platform within the environment.Type: GrantFiled: November 17, 2020Date of Patent: March 12, 2024Assignee: HRL LABORATORIES, LLCInventors: Christopher Serrano, Michael A. Warren, Aleksey Nogin
-
Patent number: 11926334Abstract: Described is a system for human-machine teaching for vehicle operation. The system determines currently enabled status reporting modes on a vehicle interface of a vehicle. The currently enabled status reporting modes are compared to a set of preferred status reporting modes of previous users. Based on the comparison, a status reporting mode is selected. A current operational status of the vehicle is reported to a current user, via the vehicle interface, using the selected status reporting mode. The system then determines preferred solutions of previous users to address the current operational status of the vehicle. Suggestions to address the current operational status of the vehicle based on the preferred solutions are reported to the user via the vehicle interface. A vehicle action corresponding to a solution selected by the current user is implemented via a vehicle component.Type: GrantFiled: April 27, 2021Date of Patent: March 12, 2024Assignee: HRL LABORATORIES, LLCInventors: Tiffany Hwu, David J. Huber, Steven W. Skorheim, Jaehoon Choe
-
Patent number: 11919085Abstract: Some variations provide a process for additive manufacturing of a nanofunctionalized metal alloy, comprising: providing a nanofunctionalized metal precursor containing metals and grain-refining nanoparticles; exposing a first amount of the nanofunctionalized metal precursor to an energy source for melting the precursor, thereby generating a first melt layer; solidifying the first melt layer, thereby generating a first solid layer; and repeating many times to generate a plurality of solid layers in an additive-manufacturing build direction. The additively manufactured, nanofunctionalized metal alloy has a microstructure with equiaxed grains.Type: GrantFiled: May 27, 2021Date of Patent: March 5, 2024Assignee: HRL Laboratories, LLCInventors: John H. Martin, Brennan Yahata, Tobias A. Schaedler, Jacob M. Hundley
-
Patent number: 11907815Abstract: Described is a system for improving generalization of an agent, such as an autonomous vehicle, to unanticipated environmental changes. A set of concepts from the agent's experiences of an environment are extracted and consolidated into an episodic world model. Using the episodic world model, a dream sequence of prospective simulations, based on a selected set of concepts and constrained by the environment's semantics and dynamics, is generated. The dream sequence is converted into a sensor data format, which is used for augmented training of the agent to operate in the environment with improved generalization to unanticipated changes in the environment.Type: GrantFiled: February 1, 2022Date of Patent: February 20, 2024Assignee: HRL LABORATORIES, LLCInventors: Praveen K. Pilly, Nicholas A. Ketz, Michael D. Howard
-
Patent number: 11907307Abstract: Described is a system for producing a causal map from a body of text. The system receives multiple textual documents as input. Pairs of cause-effect phrases are extracted from the textual documents and embedded into a vector space. The embedded data is clustered into clusters using a probabilistic technique. A causal map having nodes and edges is generated from the clusters. Using the causal map, causal connections between clusters are obtained, where each node represents an event and each edge represents a causal relationship between events. The causal map is provided as an interactive graph.Type: GrantFiled: July 7, 2022Date of Patent: February 20, 2024Assignee: HRL LABORATORIES, LLCInventors: Sasha Strelnikoff, Aruna Jammalamadaka, Dana M. Warmsley
-
Patent number: 11899839Abstract: Described is a system for multimodal machine-aided comprehension analysis. The system can be implemented in an augmented reality headset that, in conjunction with a processor, generates an initial scene graph of a scene proximate the user. Items and labels are presented, with the headset tracking eye movements of the user as the user gazes upon the subject labels, item labels, and relationship labels. A resulting scene graph (having relationship triplets) is generated based on the eye movements of the user and an amount of time the user spends gazing upon each of the display components. A comprehension model is generated by estimating a user's comprehension of the relationship triplets, with a knowledge model being generated based on a known knowledge graph and the comprehension model. Cues are then presented to the user based on the comprehension and knowledge models to assist the user in their comprehension of the scene.Type: GrantFiled: October 13, 2022Date of Patent: February 13, 2024Assignee: HRL LABORATORIES, LLCInventors: Steven W. Skorheim, Tiffany Hwu
-
Patent number: 11891341Abstract: This disclosure provides resin formulations which may be used for 3D printing and thermally treating to produce a ceramic material. The disclosure provides direct, free-form 3D printing of a preceramic polymer, followed by converting the preceramic polymer to a 3D-printed ceramic composite with potentially complex 3D shapes. A wide variety of chemical compositions is disclosed, and several experimental examples are included to demonstrate reduction to practice. For example, preceramic resin formulations may contain a carbosilane in which there is at least one functional group selected from vinyl, allyl, ethynyl, unsubstituted or substituted alkyl, ester group, amine, hydroxyl, vinyl ether, vinyl ester, glycidyl, glycidyl ether, vinyl glycidyl ether, vinyl amide, vinyl triazine, vinyl isocyanurate, acrylate, methacrylate, alkacrylate, alkyl alkacrylate, phenyl, halide, thiol, cyano, cyanate, or thiocyanate.Type: GrantFiled: May 30, 2020Date of Patent: February 6, 2024Assignee: HRL Laboratories, LLCInventors: Zak C. Eckel, Andrew P. Nowak, Ashley M. Dustin, April R. Rodriguez, Phuong Bui, Tobias A. Schaedler