Patents Assigned to The United States of America as represented by the Secretary of Commerce
  • Patent number: 10641655
    Abstract: A direct absolute spectrometer includes: a first light source; a second light source; an optical combiner that produces dual light; an optical cell that receives the dual light; an electromagnetically induced transparent medium that is optically transparent to single photon light in a presence of pump light, such that output light is produced; and a filter that filters output light and provides EIT light free from, wherein electromagnetically induced transparent EIT light is a direct and absolute metric of a linewidth and a wavelength of single photon light such that the direct absolute spectrometer provides direct and absolute determination of the linewidth of the single photon light and direct and absolute determination of wavelength at a maximum of intensity of the single photon light.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: May 5, 2020
    Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE
    Inventors: Lijun Ma, Xiao Tang, Oliver Slattery
  • Patent number: 10599007
    Abstract: Various embodiments of the present technology provide a novel architecture for optical frequency conversion in a waveguide which can be applied to any suitable nonlinear waveguide material and any wavelength. In accordance with some embodiments, phase-matched bends can be used to increase the nonlinear interaction length. For example, the device can begin with a straight waveguide section with a width designed for phase-matching. When the straight waveguide section approaches the end of the chip, a bending waveguide section allows the waveguide to meander back in the opposite direction. Various embodiments of the bend can have a wider or narrower width to eliminate phase-matching for second harmonic generation (SHG) and instead provide a 2? phase-shift between the pump and signal light. Therefore, at the end of the bend, the pump and signal light are in-phase and a phase-matched width will continue the SHG process.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: March 24, 2020
    Assignees: The Regents of the University of Colorado, a body corporate, Government of the United States of America, as represented by the Secretary of Commerce National Institute of Standards and Technology
    Inventors: Eric Stanton, Jeffrey Chiles
  • Patent number: 10552300
    Abstract: A process for testing a program includes: receiving a variable comprising a plurality of input values; producing a plurality of equivalence classes for the input values; producing a representative value per equivalence class; producing, by a processor, a primary covering array comprising a plurality of primary vectors; producing a secondary covering array comprising a plurality of secondary vectors; providing the secondary vectors to the program; and producing a result vector comprising a plurality of result entries to test the program. A computer system for testing the program includes: a memory; and a processor, in communication with the memory, wherein the computer system is configured to perform the process for testing the program. A computer program product for testing the program includes: a non-transitory computer readable storage medium readable by a processor and storing program code for execution by the processor to perform the process.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: February 4, 2020
    Assignee: UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE
    Inventors: D. Richard Kuhn, Raghu N. Kacker
  • Patent number: 10553897
    Abstract: A process for making a superionic conducting salt includes: combining a primary salt and an impact member, the primary salt including an ordered phase and being an ionic conductor; impacting the primary salt with the impact member; and converting the primary salt to the superionic conducting salt in response to impacting the primary salt with the impact member at a conversion temperature to make the superionic conducting salt, the conversion temperature optionally being less than a thermally activated transition temperature that thermally converts the primary salt to the superionic conducting salt in an absence of the impacting the primary salt, and the superionic conducting salt including a superionic conductive phase in a solid state at less than the thermally activated transition temperature.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: February 4, 2020
    Assignee: GOVERNEMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE
    Inventor: Terrence John Udovic
  • Patent number: 10545259
    Abstract: An optomechanical gravimeter includes: a first and second accelerometer; and a spacer member interposed between the first accelerometer and the second accelerometer such that the first accelerometer and the second accelerometer independently include: a basal member; a test mass disposed on the basal member; a flexural member interposed between the basal member and the test mass such that the test mass is moveably disposed on the basal member via flexing of the flexural member; an armature disposed on the basal member and opposing the test mass and the flexural member such that: the armature is spaced apart from the test mass; a cavity including: a first mirror disposed on the test mass; a second mirror disposed on the armature, the spacer member providing a substantially constant distance of separation between a first measurement point of the first accelerometer and a second measurement point of the second accelerometer.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: January 28, 2020
    Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE
    Inventors: Felipe Guzman, Lee Michael Kumanchik, Jacob M. Taylor, Jon R. Pratt
  • Patent number: 10513768
    Abstract: A coinage cladding alloy for coinage includes nickel present in an amount from 5 wt. % to 7 wt. %, based on a total weight of the coinage cladding alloy; zinc present in an amount from 21 wt. % to 29 wt. %, based on the total weight of the coinage cladding alloy; manganese present in an amount from 12 wt. % to 16 wt. %, based on a total weight of the coinage cladding alloy; copper; an electrical conductivity from 2% International Annealed Copper Standard (IACS) to 3% IACS; and a color comprising a yellowness vector b* that is from 2 to 10, based on a CIE L*a*b* color space and determined in accordance with ASTM Standard E308-15 (2015).
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: December 24, 2019
    Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE
    Inventors: Eric A. Lass, Mark R. Stoudt, Carelyn Campbell, Tsineng Tony Ying
  • Patent number: 10514359
    Abstract: A dual dielectropheretic article for monitoring cell migration includes: a membrane to selectively migrate a plurality of cells across the membrane, the membrane including: a first surface to receive the cells; a second surface opposed to the first surface; and a plurality of communication paths disposed in the membrane to provide the selective migration of the cells across the membrane from the first surface to the second surface; a first electrode disposed on the first surface to: provide an electric field for dielectrophoresis of the cells at the first surface; and provide a first potential for monitoring an impedance at the first surface; and a third electrode disposed on the second surface to: provide an electric field for dielectrophoresis of the cells at the second surface; and provide a third potential for monitoring an impedance at the second surface.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: December 24, 2019
    Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE
    Inventors: Darwin R. Reyes-Hernandez, Brian Nablo
  • Patent number: 10508358
    Abstract: Forming a transition zone terminated superconformal filling in a recess includes: providing an electrodeposition composition including: a metal electrolyte including a plurality of metal ions, solvent, and suppressor; providing the article including: a field surface and the recess that includes a distal position and a proximate position; exposing the recess to the electrodeposition composition; potentiodynamically controlling an electric potential of the recess with a potential wave form; bifurcating the recess into an active metal deposition region and a passive region; forming a transition zone; decreasing the electric potential of the recess by the potential wave form; progressively moving the transition zone closer to the field surface and away from the distal position; and reducing the metal ions and depositing the metal in the active metal deposition region and not in the passive region to form the transition zone terminated superconformal filling in the recess of the substrate.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: December 17, 2019
    Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE
    Inventors: Daniel Josell, Thomas P. Moffat
  • Patent number: 10505095
    Abstract: A neural member includes: an axonal superconducting electrode; a dendritical superconducting electrode disposed opposing the axonal superconducting electrode; a synaptic barrier interposed between the axonal superconducting electrode and the dendritical superconducting electrode and including a plurality of magnetic clusters, the synaptic barrier being a tunable magnetic barrier between an ordered magnetic state and a disordered magnetic state such that: the axonal superconducting electrode, the dendritical superconducting electrode, and the synaptic barrier are arranged as a dynamically reconfigurable Josephson junction.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: December 10, 2019
    Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE
    Inventors: Michael Schneider, Stephen Russek, William Rippard, Matthew Pufall
  • Patent number: 10473818
    Abstract: A system for detecting gas leaks and determining their location and size. A data gathering portion of the system utilizes a hub and spoke configuration to collect path-integrated spectroscopic data over multiple open paths around an area. A processing portion of the system applies a high-resolution transport model together with meteorological data of the area to generate an influence function of possible leak locations on gas detector measurement paths, and applies an inversion model to the influence function and the spectroscopic data to generate gas source size and location.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: November 12, 2019
    Assignees: The Regents of the University of Colorado, a body corporate, Government of the United States of America as represented by the Secretary of Commerce
    Inventors: Gregory B. Rieker, Ian Coddington, Nathan R. Newbury, Kuldeep Prasad, Anna Karion
  • Patent number: 10466363
    Abstract: A disciplined clock provides a disciplined time and a disciplined frequency synchronous with a reference clock. The disciplined clock includes: a time receiver to: receive a common view signal from the common view clock; and produce a receiver timing signal; a local clock to: receive a frequency correction; and produce a local timing signal; a time interval counter to: receive the receiver timing signal from the time receiver; receive the local timing signal from the lock clock; and determine a time difference between the receiver timing signal and the local timing signal; and a controller to: receive the time difference from the time interval counter; and communicate the frequency correction, based on the time difference, to the local clock.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: November 5, 2019
    Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE
    Inventor: Michael A. Lombardi
  • Publication number: 20190309008
    Abstract: This disclosure provides systems and methods for sequencing nucleic acids using nucleotide analogues and translocation of tags from incorporated nucleotide analogues through a nanopore. In aspects, this disclosure is related to composition, method, and system for sequencing a nucleic acid using tag molecules and detection of translocation through a nanopore of tags released from incorporation of the molecule.
    Type: Application
    Filed: April 1, 2019
    Publication date: October 10, 2019
    Applicants: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK, Government of The United States of America, as Represented by The Secretary of Commerce
    Inventors: Jingyue JU, Shiv KUMAR, Chuanjuan TAO, Minchen CHIEN, James J. RUSSO, John J. KASIANOWICZ, Joseph W.F. ROBERTSON
  • Patent number: 10432320
    Abstract: A process for generating an entangled state of a plurality of particles includes: providing the plurality of particles, the plurality of particles interacting via long range interactions; producing a first entangled state in a first particle; entangling the first particle with a second particle to form a second entangled state, wherein particles that are not in the second entangled state are remaining particles; and proceeding, starting with the second entangled state, to propagate entanglement in a logarithmic progression through the remaining particles in a recursive manner, to produce an intermediate entangled state, such that the intermediate entangled state acts as an initial entangled state for a next iteration, until a final entangled state is formed to generate the entangled state of the particles.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: October 1, 2019
    Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE
    Inventors: Alexey V. Gorshkov, Michael Foss-Feig, Zachary Eldredge, Zhe-Xuan Gong, Ali Hamed Moosavian, Jeremy T. Young
  • Patent number: 10424458
    Abstract: An electron reflectometer includes: a sample stage; a source that produces source electrons; a source collimator; and an electron detector that receives collimated reflected electrons.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: September 24, 2019
    Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE
    Inventors: Lawrence H. Friedman, Wen-Li Wu
  • Patent number: 10408672
    Abstract: A protector to protect a photon detector includes: a pulse rate comparator and a latcher, wherein the latcher latches to a set signal from the pulse rate comparator and protects the photon detector from detecting photons when the latch signal includes a latch protect level.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: September 10, 2019
    Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE
    Inventors: David M. Rutter, Alan H. Band
  • Patent number: 10408741
    Abstract: An optical phantom produces a time-resolved diffuse reflectance spectrum and includes: a light source; a spatial light modulator; and an optical delay line including optical fibers of different length that produce different time-of-flight distributions, such that different time-of-flight distributions are combined and produce phantom light having the time-resolved diffuse reflectance spectrum.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: September 10, 2019
    Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE
    Inventors: Jeeseong C. Hwang, Heidrun Wabnitz
  • Patent number: 10389514
    Abstract: An optical time distributor includes: a master clock including: a master comb; a transfer comb; and a free-space optical terminal; and a remote clock in optical communication with the master clock via a free space link and including: a remote comb that produces: a remote clock coherent optical pulse train output; a remote coherent optical pulse train; a free-space optical terminal in optical communication: with the remote comb; and with the free-space optical terminal of the master clock via the free space link, and that: receives the remote coherent optical pulse train from the remote comb; receives the master optical signal from the free-space optical terminal of the master clock; produces the remote optical signal in response to receipt of the remote coherent optical pulse train; and communicates the remote optical signal to the free-space optical terminal of the master clock.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: August 20, 2019
    Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE
    Inventors: Laura C. Sinclair, Nathan R. Newbury, William C. Swann, Hugo Bergeron, Jean-Daniel Deschenes
  • Patent number: 10390364
    Abstract: A process for dynamically controlling spectrum access includes: collecting occupancy data; applying nonparametric estimation to the occupancy data; determining a cumulative hazard function; receiving a service request to occupy the wireless communication channel from a secondary user; accepting the service request from the secondary user if the wireless communication channel is unoccupied by the primary user; calculating a maximum duration for which the secondary user may occupy the wireless communication channel; determining a probability that a remaining idle time of the primary user is greater than an occupation time of the wireless communication channel of the secondary user; granting access to the secondary user for occupation of the wireless communication channel if the probability is greater than a selected probability threshold; and denying access to the secondary user for occupation of the wireless communication channel if the probability is less than the selected probability threshold to dynamically
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: August 20, 2019
    Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE
    Inventors: Timothy A. Hall, Anirudha Sahoo, Charles Hagwood, Sarah Streett
  • Patent number: 10379038
    Abstract: A process for measuring a size distribution of a plurality of nucleic acid molecules, the process comprising: labeling the nucleic acid molecules with a fluorescent dye comprising a plurality of fluorescent dye molecules to form labeled nucleic acid molecules, such that a number of fluorescent dyes molecules attached to each nucleic acid molecule is reliably proportional to the number of base pairs in the nucleic acid molecule, the fluorescent dye molecules having a first florescence spectrum; producing, by the labeled nucleic acid molecules, the first florescence spectrum in response to irradiating the labeled nucleic acid molecules at the first wavelength; and detecting the first florescence spectrum to measure the size distribution of the plurality of nucleic acid molecules.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: August 13, 2019
    Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE
    Inventors: Samuel Martin Stavis, Craig Robert Copeland
  • Patent number: 10382141
    Abstract: A communication linker includes: a classical encoder; an optical transmitter; a receiver; a local oscillator in communication with the receiver and that: receives a feedback signal; and produces a displacement frequency, based on the feedback signal; a single photon detector in communication with the receiver and that: receives an optical signal from the receiver; and produces a single photon detector signal, based on the optical signal; a signal processor in communication with the single photon detector and that: receives the single photon detector signal from the single photon detector; produces the feedback signal, based on the single photon detector signal; and produces a decoded signal, based on the single photon detector signal, the decoded signal comprising a frequency of the feedback signal.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: August 13, 2019
    Assignee: THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE
    Inventors: Sergey V. Polyakov, Ivan Burenkov