Patents Assigned to The United States of America as represented by Secretary of the Navy
  • Hybrid unequal error protection (UEP) for heterogeneous multi-service provisioning
    Patent number: 11044049
    Abstract: A method and system are discussed for providing Unequal Error Protection (UEP) for heterogeneous multi-service provisioning. A transmitter in a network may determine a current status of the network. The transmitter may adaptively adjust a current asymmetric signal constellation and a current channel Forward Error Correction (FEC) coding rate based on the determined current status of the network, and initiate transmission of multi-service data, using the adaptively adjusted asymmetric signal constellation and the adaptively adjusted FEC coding rate for transmission of the multi-service data, based on hybrid Unequal Error Protection (UEP) transmission.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: June 22, 2021
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: Justin O. James, Michael P. Daly
  • Antenna with integrated balun
    Patent number: 11043747
    Abstract: An antenna comprising first and second antenna elements, a center conductor, and a dielectric. The first antenna element is configured to be electrically connected to an outer conductor of a coaxial cable. The center conductor is electrically connected to the second antenna element and configured to be electrically connected to an inner conductor of the coaxial cable. The dielectric is disposed around the center conductor so as to separate the center conductor from the first antenna element. The first antenna element is shaped to gradually surround the dielectric and the center conductor over a length of the first antenna element so as to form a balun, integrated into the first antenna element, that is configured to gradually transform an unbalanced signal in the coaxial cable to a balanced signal that is characteristic of a two-conductor transmission line.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: June 22, 2021
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: Steven Edward Mancewicz, David Walker Brock, Robert Joseph Motyl
  • METHOD FOR CREATING HIGH-RESOLUTION MICRO- TO NANO-SCALE STRUCTURES ON FLEXIBLE SUBSTRATES
    Publication number: 20210184098
    Abstract: A method includes providing a film of a high-temperature superconductor compound on a flexible substrate, where a portion of the film has a first oxygen state, and exposing a portion of the film to a focused ion beam to create a structure within the film. The structure may result from the portion of the film being partially or completely removed. The structure may be a trench along the length or width of the film. The method may include annealing the exposed portion of the film to a second oxygen state. The oxygen content of the second oxygen state may be greater or less than the oxygen content of the first oxygen state.
    Type: Application
    Filed: December 16, 2019
    Publication date: June 17, 2021
    Applicant: THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY
    Inventors: BENJAMIN J. TAYLOR, TERESA H. EMERY
  • Tunable Spectral Filters
    Publication number: 20210181542
    Abstract: A tunable spectral filter comprising a phase change material is incorporated into a multilayered dielectric structure. The dielectric permittivity, and thus the filter properties, of the structure can be modified by producing a change in the phase change material, e.g., causing a metal-insulator transition. By controllably causing such a change in the dielectric permittivity of the phase change material, the spectral transmittance and reflectance of the structure, and thus its filter properties, can be modified to provide a predetermined transmittance or reflectance of electromagnetic radiation incident on the structure. In preferred embodiments, the phase change material layer is a vanadium dioxide (VO2) film formed by atomic layer deposition (ALD).
    Type: Application
    Filed: December 13, 2019
    Publication date: June 17, 2021
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Marc Currie, Virginia D. Wheeler, Guy Beadie
  • Lens apparatus and methods for an antenna
    Patent number: 11038278
    Abstract: A lens apparatus for improving antenna performance, the apparatus involving a lens configured to at least one of focus, refocus, and refract electromagnetic energy for constructively adding gain in a far-field, the lens configured to operably couple with an antenna, whereby electromagnetic energy is omnidirectionally concentrated, whereby antenna gain and directivity are improved, whereby antenna efficiency and antenna frequency range are maintained, and whereby antenna complexity is minimized.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: June 15, 2021
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: Dennis G. Bermeo, Peter S. Berens, Andy Kho, David V. Arney, Linda I. Hau, Christopher C. Obra
  • Method for precise control of manufacture of non-rigid thin-walled tube products
    Patent number: 11033997
    Abstract: A method for correcting non-rigid thin-walled tubular elements having geometric deficiencies, wherein, following correction, the tubular elements may perform over a wide range of pressure and temperatures, for example as a rocket motor beaker, from about ?70 C to about 1000 C. Correction is required to remove asperities, maximize cylindricity, squaring a forward end wall and a rearward end wall, so that the forward end wall of the tube product may be fitted, bonded and sealed to a circular planar element using a labyrinth-joint closure. The method provides uniformity so that both the tubular elements and the circular planar elements are interchangeably uniform in size, shape and performance, and may be readily assembled into non-rigid thin-walled tube products.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: June 15, 2021
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Tina Jones, John Kelley
  • Device, system, and method for controlling the focus of a laser to induce plasmas that emit signals with high directivity
    Patent number: 11035925
    Abstract: A focus controlling component is configured to control a focus of a laser beam that passes through water and induces plasmas that emit signals. The focus of the laser beam is controlled such that the signals emitted by the induced plasmas interfere to form a combined signal that propagates in a desired direction.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: June 15, 2021
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: Bienvenido Melvin L. Pascoguin, Ryan P. Lu, Ayax D. Ramirez
  • Anti-reflective surface structures formed using three-dimensional etch mask
    Patent number: 11035984
    Abstract: The invention relates to methods for fabricating antireflective surface structures (ARSS) on an optical element using a three-dimensional film layer applied to the surface of the optical element. The methods beneficially permit materials that do not exhibit local variation in physical and chemical properties to be provided with ARSS. Optical elements having ARSS on at least one surface are also provided.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: June 15, 2021
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Jesse A. Frantz, Lynda E. Busse, L. Brandon Shaw, Jasbinder S. Sanghera, Ishwar D. Aggarwal, Menelaos K. Poutous
  • Apparatus for determining swollen-polymer cross-link density
    Patent number: 11035767
    Abstract: An apparatus to determine the swollen cross-link density of a polymeric specimen. The apparatus includes a support structure, a fluid-holding structure to hold a solvent, a first gripping assembly engaged with a weight scale and adapted to grip a specimen and a second gripping assembly adapted to grip the specimen. The fluid-holding structure is attached to a multi-stage device attached to the support structure and displaceable upward or downward. A mechanism supported by the support structure and engaged with the multi-stage device and configured to displace the multi-stage device in fine gradations. When a specimen is gripped by the gripping assemblies and submerged in the solvent and the mechanism displaces the multi-stage device downward, a tensile force is exerted on the specimen. The tensile force is measured by a displacement gauge.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: June 15, 2021
    Assignee: The United States of Americas as represented by the Secretary of the Navy
    Inventors: William F. Bryant, Jr., John N. Kelley
  • Bicone antenna with logarithmically extending conical surfaces
    Patent number: 11038275
    Abstract: A bicone antenna and methods for manufacture therefor can include a feed portion, a top section and a bottom section that can be centered on a vertical axis. The top section and bottom sections can each have a respective conical surface, which can extend radially outward from the vertical axis at an inner portion at a constant angle ?1 with respect to a horizontal antenna axis of the antenna. For both sections, the inner portion can merge into an outer portion that can have a curved surface, with the curved surface extending radially outward from the conical surface so that the curved surface has a logarithmic profile when viewed in side profile. The above structure can allow for a multi-directional antenna with a minimum of moving parts, which can be easily manufactured, including by additive manufacturing techniques.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: June 15, 2021
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: Dennis Bermeo, Peter Berens, David Brock, Yong Kho, Robbi Mangra, Dave Arney, Linda Hau, Brandon Wiedemeier, Jessica Watson, Lu Xu
  • Automated infrared spectrometer liquid transmission cell filling and flushing device
    Patent number: 11035781
    Abstract: The present invention relates to an automated liquid transmission cell system capable of transferring solvents and samples to clean and fill the transmission cells. Three valves allow a plurality of system configurations to perform a variety of flushing and filling processes by changing the position of each valve. A plurality of tubes are connected to two of the valves such that changing the valve positions will redirect fluid transmission paths.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: June 15, 2021
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Michael L. Bishop, Christopher H. Clark, Gary G. Yeakley
  • Powder sieving capsule
    Patent number: 11033917
    Abstract: Disclosed is a closable container of a mesh material having openings. When the container is closed, the openings are the only gaps in the container. The openings are no more than 150 microns in diameter.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: June 15, 2021
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventor: Scooter Johnson
  • METAL HYDRIDE NANOPARTICLES
    Publication number: 20210171418
    Abstract: A nanoparticle of a decomposition product of a transition metal aluminum hydride compound, a transition metal borohydride compound, or a transition metal gallium hydride compound. A process of: reacting a transition metal salt with an aluminum hydride compound, a borohydride compound, or a gallium hydride compound to produce one or more of the nanoparticles. The reaction occurs in solution while being sonicated at a temperature at which the metal hydride compound decomposes. A process of: reacting a nanoparticle with a compound containing at least two hydroxyl groups to form a coating having multi-dentate metal-alkoxides.
    Type: Application
    Filed: December 3, 2020
    Publication date: June 10, 2021
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Albert Epshteyn, Andrew P. Purdy
  • METAL HYDRIDE NANOPARTICLES
    Publication number: 20210171417
    Abstract: A nanoparticle of a decomposition product of a transition metal aluminum hydride compound, a transition metal borohydride compound, or a transition metal gallium hydride compound. A process of: reacting a transition metal salt with an aluminum hydride compound, a borohydride compound, or a gallium hydride compound to produce one or more of the nanoparticles. The reaction occurs in solution while being sonicated at a temperature at which the metal hydride compound decomposes. A process of: reacting a nanoparticle with a compound containing at least two hydroxyl groups to form a coating having multi-dentate metal-alkoxides.
    Type: Application
    Filed: December 3, 2020
    Publication date: June 10, 2021
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Albert Epshteyn, Andrew P. Purdy
  • Millimeter-wave airborne radar for 3-Dimensional imaging of moving and stationary targets
    Patent number: 11029403
    Abstract: Systems and method are provided for three-dimensional (3D) imaging by using Doppler and interferometric processing techniques for general planar phased arrays. Systems and methods according to embodiments of the present disclosure incorporate motion compensation techniques in a way that utilizes the full aperture of a phase array. Embodiments of the present disclosure can be applied to a variety of different radar imaging modalities, including X-band and millimeter wave (MMW) regimes.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: June 8, 2021
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Raghu G. Raj, Christopher T. Rodenbeck
  • Controlled chaotic system for low probability of detection (LPD) communication
    Patent number: 11032058
    Abstract: Systems and method are provided for using chaotic signals for low probability of detection (LPD) communications. Embodiments of the present disclosure provide systems and methods for synchronizing chaotic systems and then encoding information on a signal in a way that produces little or no signature (e.g., using a bit flipping technique or a chaos control encoding technique). Systems and methods in accordance with embodiments of the present disclosure can work with noise larger than the signal, so they are suitable for communication in noisy environments.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: June 8, 2021
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventor: Thomas L. Carroll
  • Asynchronous artificial neural network architecture
    Patent number: 11030518
    Abstract: An asynchronous convolutional neural network (CNN) can interpret a sequence of input data. An input value representing a sample of the sequence of input data is received by a computational unit (CU) in a layer of the asynchronous CNN. The CU calculates a dot product of the input value and a weight assigned to the CU to produce an activation value. A change detector (CD) associated with the CU detects a difference between the activation value and previous activation values. The CD determines whether the detected difference is significant, indicating that the sample of the sequence of input data includes a significant change. If the detected difference is significant, the activation value is supplied to at least one subsequent CU included in a subsequent layer of the asynchronous CNN.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: June 8, 2021
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: Daniel J Gebhardt, Benjamin J Migliori, Michael W Walton, Logan Straatemeier, Maurice R Ayache
  • Laser induced ballistic particle implantation technique
    Patent number: 11027145
    Abstract: A method using a receiving substrate and a target substrate having a photon-transparent support, a photon absorbent interlayer coated on the support, and a tissue-implantable particle on top of the interlayer opposite to the support. A source of photon energy is directed through the transparent support so that the photon energy strikes the interlayer. A portion of the interlayer is energized by absorption of the photon energy. The energized interlayer causes a transfer of the particle across a gap between the target substrate and the receiving substrate and embedding of the particle into the receiving substrate.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: June 8, 2021
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Bradley R. Ringeisen, Peter K. Wu
  • Method for identifying optimal vehicle paths when energy is a key metric or constraint
    Patent number: 11029168
    Abstract: A computer-readable medium storing instructions that, when executed by a computer in a vehicle, cause the computer to carry out a method for determining an energy-optimal path for the vehicle from an initial location to a final location, the vehicle corresponding to a vehicle energy model. Based at least on the initial location, an initial time, the final location, the vehicle energy model, and an environmental forecast a global path is generated. The global path includes a final maximum net energy path and a plurality of waypoints. Based on the global path a local path from the present location to a next waypoint of the plurality of waypoints is generated. Whether a net energy gain is generated by a deviation from the global path to the next waypoint of the plurality of waypoints is determined. Generating a local path is repeated until the vehicle reaches the final location.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: June 8, 2021
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Richard Stroman, Daniel J. Edwards, Daniel S. Newton, John J. Bird, Jacob W. Langelaan, Vladimir Dobrokhodov
  • Electrochemical ZRA test cells for determination of galvanic corrosion rates in atmospheric environments
    Patent number: 11029244
    Abstract: The invention is directed to a real-time, zero resistance ammeter (ZRA) galvanic corrosion detection instrument that is adapted to measure corrosion under atmospheric conditions. The instrument may be used in accordance with methods for selecting materials based on environmental conditions and electrolyte chemistries. The electrochemical ZRA test cell of the invention may further be used to determine galvanic corrosion susceptibility, aid in forecasting corrosion, and determine the extent of corrosion based on environmental factors.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: June 8, 2021
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Carlos M. Hangarter, Steven A. Policastro