公开(公告)号：US11695198B1

公开(公告)日：2023-07-04

申请号：US17864322

申请日：2022-07-13

Applicant: HRL Laboratories, LLC

Inventor： Carson R. White ,  Walter S. Wall

IPC: H01Q1/28 ,  H04B7/15 ,  H01Q1/30 ,  H04B7/185

CPC classification number: H01Q1/30 ,  H04B7/18504

Abstract: 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.

公开(公告)号：US11694120B2

公开(公告)日：2023-07-04

申请号：US17190346

申请日：2021-03-02

Applicant: HRL Laboratories, LLC

Inventor： Amit Agarwal ,  Amir M. Rahimi ,  Hyukseong Kwon ,  Rajan Bhattacharyya

IPC: H04N7/18 ,  G06K9/32 ,  G06N20/00 ,  G06N5/04 ,  G06V20/40 ,  G06V20/10 ,  G06V10/84 ,  G06V20/56

CPC classification number: G06N20/00 ,  G06N5/04 ,  G06V10/85 ,  G06V20/10 ,  G06V20/41 ,  G06V20/56

Abstract: Described is a system for detecting and correcting perception errors in a perception system. In operation, the system generates a list of detected objects from perception data of a scene, which allows for the generation of a list of background classes from backgrounds in the perception data associated with the list of detected objects. For each detected object in the list of detected objects, a closest background class is identified from the list of background classes. Vectors can then be used to determine a semantic feature, which is used to identify axioms. An optimal perception parameter is then generated, which is used to adjust perception parameters in the perception system to minimize perception errors.

公开(公告)号：US11692109B2

公开(公告)日：2023-07-04

申请号：US17564903

申请日：2021-12-29

Applicant: HRL Laboratories, LLC

Inventor： Ashley M. Dustin ,  Andrew P. Nowak ,  Jason A. Graetz ,  John J. Vajo ,  April R. Rodriguez

IPC: C09D171/02 ,  C08G65/00 ,  C08L101/02 ,  C09D201/02 ,  C08G65/22 ,  C08G81/00

CPC classification number: C09D171/02 ,  C08G65/007 ,  C08G65/226 ,  C08G81/00 ,  C08L101/02 ,  C09D201/02 ,  C08G2650/22 ,  C08G2650/48 ,  C08G2650/58

Abstract: Some variations provide a multiphase polymer composition comprising a first polymer material and a second polymer material that are chemically distinct, wherein the first polymer material and the second polymer material are microphase-separated on a microphase-separation length scale from about 0.1 microns to about 500 microns, wherein the multiphase polymer composition comprises first solid functional particles selectively dispersed within the first polymer material, and wherein the first solid functional particles are chemically distinct from the first polymer material and the second polymer material. Some embodiments provide an anti-corrosion composition comprising first corrosion-inhibitor particles or precursors selectively dispersed within the first polymer material, wherein the multiphase polymer composition optionally further comprises second corrosion-inhibitor particles or precursors selectively dispersed within the second polymer material. These multiphase polymer compositions may be used for other applications, such as self-cleaning, self-healing, or flame-retardant coatings. Methods of making and using these multiphase polymer compositions are disclosed.

公开(公告)号：US11663370B2

公开(公告)日：2023-05-30

申请号：US17115770

申请日：2020-12-08

Applicant: HRL Laboratories, LLC

Inventor： Byron N. Heersink ,  Michael A. Warren ,  Christopher Serrano

IPC: G06N3/04 ,  G06F21/88

CPC classification number: G06F21/88 ,  G06N3/04

Abstract: Described is a system and method for generating safety conditions for a cyber-physical system with state space S, action space A and trajectory data labelled as either safe or unsafe. In operation, the system receives inputs and ten minimizes loss functions to cause a neural network to become a barrier function. Based on the barrier function, the system can then determine if the cyber-physical system is entering an usafe state, such that if the cyber-physical system is entering the usafe state, then the cyber-physical system is caused to initiate a maneuver to position the cyber-physical system into a safe state.

公开(公告)号：US20230076629A1

公开(公告)日：2023-03-09

申请号：US17576897

申请日：2022-01-14

Applicant: HRL Laboratories, LLC

Inventor： Travis AUTRY ,  Ian COUNTS ,  Jennifer ELLIS ,  Danny KIM ,  Christopher ROPER

IPC: G21K1/02

Abstract: In some variations, an interferometric frequency-reference apparatus comprises: an atom source configured to supply neutral atoms to be ionized; an ionizer configured to excite the neutral atoms to form ionized atoms; an ion collimator configured to form a collimated beam of the ionized atoms; probe lasers; and a Doppler laser configured to determine a ground-state population of the ionized atoms, wherein the atom source, the ionizer, and the ion collimator are disposed within a vacuum chamber. Other variations provide a method of creating a stable frequency reference, comprising: forming ionized atoms from an atomic vapor; forming a collimated beam of ionized atoms; illuminating ionized atoms with first and second probe lasers; adjusting the frequencies of the first probe and second probe lasers using Ramsey spectroscopy to an S→D transition of ionized atoms; and determining a ground-state population of the ionized atoms with another laser.

公开(公告)号：US11591484B1

公开(公告)日：2023-02-28

申请号：US16672385

申请日：2019-11-01

Applicant: HRL Laboratories, LLC

Inventor： Tobias A. Schaedler ,  Phuong P. Bui ,  Zak C. Eckel ,  Jacob M. Hundley ,  Kayleigh A. Porter ,  John H. Martin

IPC: C09D11/101 ,  C09D4/00 ,  C09D5/33 ,  B33Y70/00 ,  B33Y10/00 ,  B22F3/24 ,  B29C64/106 ,  B22F10/00 ,  B29K505/08

Abstract: Some variations provide a composition for additive manufacturing (3D printing) of metals, comprising: from 10 vol % to 70 vol % of a photocurable liquid resin; from 10 vol % to 70 vol % of metal or metal alloy particles, optionally configured with a photoreflective surface; and from 0.01 vol % to 10 vol % of a photoinitiator. Other variations provide a composition for additive manufacturing of metals, comprising: from 1 vol % to 70 vol % of a photocurable liquid resin; from 0.1 vol % to 98 vol % of an organometallic compound containing a first metal; from 1 vol % to 70 vol % of metal or metal alloy particles containing a second metal (which may be the same as or different than the first metal); and from 0.01 vol % to 10 vol % of a photoinitiator. Many examples of metals, photocurable resins, organometallic compounds, photoinitiators, and optional additives are disclosed, and methods of making and using the composition are described.

公开(公告)号：US11588482B1

公开(公告)日：2023-02-21

申请号：US17516582

申请日：2021-11-01

Applicant: HRL Laboratories, LLC

Inventor： Chan-Tang Tsen ,  Donald Hitko ,  Susan Morton

IPC: H03K17/687 ,  H03K19/20 ,  H03F3/45

Abstract: A signal processing circuit. In some embodiments, the signal processing circuit includes a first sample and hold circuit and a second sample and hold circuit. The first sample and hold circuit may include: a hold capacitor; an input switch connected between a common input node and the hold capacitor; a signal path amplifier having an input connected to the hold capacitor; and an output switch connected between an output of the signal path amplifier and a common output node. An input of a voltage feedback amplifier may be connected to the hold capacitor, and an output of the voltage feedback amplifier may be operatively coupled to an internal node of the input switch.

公开(公告)号：US11569684B1

公开(公告)日：2023-01-31

申请号：US16867411

申请日：2020-05-05

Applicant: HRL Laboratories, LLC

Inventor： Carson R. White ,  Walter S. Wall ,  Christopher P. Henry ,  Christopher S. Roper ,  James H. Schaffner ,  Ignacio Ramos

IPC: H02J50/00 ,  H01F29/14 ,  H02J50/27 ,  H02J7/00 ,  H01Q1/22

Abstract: An energy conversion device disposed in series with an RF driver circuit and an RF antenna, the energy conversion device being arranged to convert a portion of available RF power from the RF driver circuit into a different form of energy (direct current, thermal, or higher frequency electromagnetic waves such as light) which is converted, if needed, to DC and stored in an energy storage device coupled with the RF driver circuit for supplying recycled electrical energy thereto. The RF antenna may be an electrically small antenna and thus a antenna matching network may be provided between the RF driver circuit and the RF antenna. The energy conversion device may comprise, for example, (i) a transformer in combination with a rectifying circuit, (ii) a full wave rectifier, (iii) a half wave rectifier, (iv) a heat and/or light producing device, an energy converter (such as a generator) or a combination of the foregoing.

公开(公告)号：US11569375B2

公开(公告)日：2023-01-31

申请号：US16851378

申请日：2020-04-17

Applicant: HRL Laboratories, LLC

Inventor： Biqin Huang

IPC: H01L29/66 ,  H01L29/78 ,  H01L29/167 ,  H01L29/16

Abstract: A vertical field-effect transistor (FET), comprising a first doped region of a first material, said first doped region having a first doping and being formed on a surface of a substrate, a second doped region of said first material, said second doped region having a second doping and being formed on the first doped region, and a third doped region of said first material, said third doped region having a third doping and being formed on the second doped region, wherein the first doped region has a first width along a first direction parallel to said surface of the substrate, the second doped region has a second width along said first direction, the third doped region has a third width along said first direction, the second width being smaller than the first and third widths.

公开(公告)号：US11563420B1

公开(公告)日：2023-01-24

申请号：US16775242

申请日：2020-01-28

Applicant: HRL Laboratories, LLC

Inventor： Randall L. Kubena ,  Walter S. Wall

IPC: H03H9/22 ,  H01L41/12 ,  H01Q13/10 ,  H03H9/19 ,  H03H9/17

Abstract: A RF antenna or sensor has a substrate, a resonator operable at UHF disposed on the substrate, the resonator preferably having a quartz bar or body with electrodes disposed on opposing major surfaces thereof and with a magnetostrictive material disposed on or covering at least one of the electrodes. A pair of trapezoidal, triangular or wing shaped high permeability pole pieces preferably supported by that substrate are disposed confronting the resonator, one of the pair being disposed one side of the resonator and the other one of the pair being disposed on an opposing side of said resonator, the pair of high permeability pole pieces being spaced apart by a gap G, the resonator being disposed within that gap G. The size of gap G is preferably less than 100 μm.