Patents Assigned to Raytheon Company
  • Publication number: 20210377470
    Abstract: A digital pixel includes a capacitive transimpedence amplifier (CTIA) coupled to a photodiode that receives an electrical charge and output an integration voltage. An integration capacitor coupled to the CTIA accumulates the integration voltage over an integration period. A comparator compares the accumulated integration voltage with a threshold voltage and generates a control signal at a first level each time the accumulated integration voltage is greater than the threshold voltage. A charge subtraction circuit receives the control signal at the first level and discharges the accumulated integration voltage each time the control signal at the first level is received from the comparator. An analog or digital counter receives the control signal at the first level and adjusts a counter value each time the control signal is received from the comparator. An output interface communicates the counter value to an image processing circuit at an end of the integration period.
    Type: Application
    Filed: June 2, 2020
    Publication date: December 2, 2021
    Applicant: Raytheon Company
    Inventors: Neil R. Malone, Micky Harris, Adam M. Kennedy, George Paloczi, John L. Vampola, Christian M. Boemler
  • Publication number: 20210374485
    Abstract: An automatic target recognizer system including: a database that stores target recognition data including multiple reference features associated with each of multiple reference targets; a pre-selector that selects a portion of the target recognition data based on a reference gating feature of the multiple reference features; a preprocessor that processes an image received from an image acquisition system which is associated with an acquired target and determines an acquired gating feature of the acquired target; a feature extractor and processor that discriminates the acquired gating feature with the reference gating feature and, if there is a match, extracts multiple segments of the image and detects the presence, absence, probability or likelihood of one of multiple features of each of the multiple reference targets; a classifier that generates a classification decision report based on a determined classification of the acquired target; and a user interface that displays the classification decision report.
    Type: Application
    Filed: May 29, 2020
    Publication date: December 2, 2021
    Applicant: Raytheon Company
    Inventors: Christopher M. Pilcher, Christopher Harris, John R. Goulding, William D. Weaver
  • Patent number: 11190724
    Abstract: A sensor data processing apparatus can be coupled to multiple image sensors of different types. The apparatus adjusts frame transmission rates based on the number of sensors and type of image data sourced by the sensors to optimize utilization of bandwidth on a number of transport channels. The apparatus can be configured to transport selected frames in the image data that are identified as critical frames at a higher rate than non-selected frames in the image data.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: November 30, 2021
    Assignee: RAYTHEON COMPANY
    Inventors: Carl A. Woody, Tyler Layne Hook
  • Patent number: 11187506
    Abstract: A projectile and method of deploying a projectile includes a gun-launched projectile having a pressure reservoir that is fluidly connected to an ejection piston and fin deployment pistons. The fin deployment pistons are actuatable to engage deployable fins of the projectile to move the fins from a folded position to a deployed position. Gas pressure is generated by an external burning propellant to pressurize the pressure reservoir that retains the gas until a muzzle exit of the projectile. When the projectile exits the barrel, the reservoir gas expands thereby causing movement of the ejection piston. When a trailing end of the piston moves past fin deployment piston ports, the remaining reservoir gas pressure acts on the fin deployment pistons which subsequently push on the fins. The fins rotate toward the deployed position in which the fins are locked before the ejection piston is fully ejected.
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: November 30, 2021
    Assignee: Raytheon Company
    Inventor: Paul A. Merems
  • Patent number: 11189039
    Abstract: A system and method for star tracking includes: capturing an image of stars; detecting and selecting visible stars from the captured image; extracting features from the selected stars by forming a convex hull from the selected stars to generate a spherical polygon; computing the area and higher order moments of the spherical polygon; and pattern matching the extracted feature against a database of star catalog. The pattern matching includes matching the area of the spherical polygon to a plurality of polygon areas stored in the database and when the number of the matching candidates is more than one, matching a next extracted higher order moment with a respective higher order moment in the database, and repeating said matching of the next extracted higher order moment until the number of the matching candidates is equal to one.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: November 30, 2021
    Assignee: Raytheon Company
    Inventors: Huy P. Nguyen, Dieter G. Krausser, Pradyumna Kannan
  • Patent number: 11189558
    Abstract: An integrated circuit includes a first conductive layer and a first insulation layer formed on the first conductive layer. The integrated circuit also includes a second insulation layer formed on the first insulation layer and a second conductive layer formed on the second insulation layer. The first insulation layer may include a first defect, and the second insulation layer may include a second defect. The integrated circuit may also include a third insulation layer formed on the second conductive layer, a fourth insulation layer formed on the third insulation layer, and a third conductive layer formed on the fourth insulation layer. The third insulation layer may include a third defect, and the fourth insulation layer may include a fourth defect.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: November 30, 2021
    Assignee: Raytheon Company
    Inventor: David Madajian
  • Patent number: 11187871
    Abstract: A bipod flexure mount couples an optic to a base while isolating the optic from strain to resist wavefront error. The bipod flexure mount has a distal attachment pad to be coupled to the optic and a proximal attachment pad to be coupled to the base. A pair of beams extend between and couple the distal and proximal attachment pads. The distal attachment pad, the proximal attachment pad and the pair of beams are disposed in and define a planar layer with opposite planar surfaces that are substantially parallel. The bipod flexure mount is relatively flexible about four degrees of freedom and is relatively stiff about two degrees of freedom.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: November 30, 2021
    Assignee: Raytheon Company
    Inventor: Kirk A. Miller
  • Patent number: 11187296
    Abstract: A tuned mass absorber assembly comprises a mass structure, and a flexure system comprising first and second flexure sections (e.g., cross bar flexures) supported by, and extending in opposing directions from, the mass structure. The flexure system can comprise flexure section mounts situated at distal ends of the first and second flexure sections, respectively, and that are operable to mount the tuned mass absorber assembly to a structure subject to induced vibrations therein. A mass of the mass structure and a stiffness of the flexure system can be tuned to attenuate vibrations at a specific input frequency generated in response to induced vibrations of the structure. A system can comprise a vibration isolator attached to a chassis (e.g., of an airplane), and supporting a payload (sensors(s)) and isolating the payload from vibrations. A tuned mass absorber assembly can be mounted to the vibration isolator for attenuating vibrations at a specific input frequency that may affect the payload.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: November 30, 2021
    Assignee: Raytheon Company
    Inventors: Brett A. Miller, Michael Martinez
  • Patent number: 11187786
    Abstract: An apparatus and method for enhanced calibration of radar at the module level supports dual polarization and array calibration and alignment without the use of external test equipment. Utilizing a delay line, loop back capability at the module level allows existing receiver exciter subsystem to be used for calibration. This approach eliminates the need for manual array calibration using external RF monitor subsystem or external test antennas.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: November 30, 2021
    Assignee: Raytheon Company
    Inventors: Debra J. Tonks, Stephen M. Sparagna, William Kennedy, David A. Ringheiser, Jack Lee
  • Publication number: 20210367055
    Abstract: A semiconductor device having a substrate, a pair of Group III-Nitride layers on the substrate forming: a heterojunction with a 2 Dimensional Electron Gas (2DEG) channel in a lower one of the pair of Group III-Nitride layers, a cap beryllium doped Group III-Nitride layer on the upper one of the pair of Group III-Nitride layers; and an electrical contact in Schottky contact with a portion of the cap beryllium doped, Group III-Nitride layer.
    Type: Application
    Filed: May 22, 2020
    Publication date: November 25, 2021
    Applicant: Raytheon Company
    Inventors: Kiuchul Hwang, Brian D. Schultz, John Logan, Robert E. Leoni, Nicholas J. Kolias
  • Patent number: 11181607
    Abstract: In a geolocation system, ancillary parameter values, i.e., those produced during the geolocation process but not directly related to the calculation of the geolocation, are recorded and stored. These “ancillary” parameter values include signal characterization data and secondary measurements produced in the calculation of the geolocation. These parameter values are processed, in one approach, with respect to a weighted matrix in order to determine a confidence or fidelity value of the determined geolocation. Confidence is an indication of the likelihood that the geolocation result produced is in fact the desired target and that the identified location has a reasonable degree of quality so as to be practical or accurate.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: November 23, 2021
    Assignee: Raytheon Company
    Inventors: Shawn Henderson, Jerry Hosterman, Steven Eslinger, Megan J. Roberts
  • Patent number: 11182126
    Abstract: Computationally efficient mixed precision floating point waveform generation takes advantage of the high-speed generation of waveforms with single-precision floating point numbers while reducing the generally unacceptable loss of precision of pure single-precision floating point to generate any waveform that repeats in 2?. This approaches computes a reference phase in double precision as the modulus of the phase with 2? and then computes offsets to that value in single precision. The double precision reference phase is recomputed as needed depending on how quickly the phase grows and how large a machine epsilon is desired.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: November 23, 2021
    Assignee: Raytheon Company
    Inventors: Ender Barillas, Brian Filarsky
  • Patent number: 11183846
    Abstract: A system includes multiple hybrid energy storage modules (HESMs) configured to accept constant-current DC input power from a main power source. Each HESM has a plurality of outputs configured to sequentially or simultaneously provide both constant-current and constant-voltage output power to multiple loads, the loads comprising steady state, pulsating, or intermittent loads. Each HESM comprises a combined rotating electrical machine-inertial storage module and electro-chemical storage module configured to generate second power that augments or induces first power derived from the main power source, so as to permit constant power draw or constant current draw from the main power source, wherein the output power comprises the first power and the second power.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: November 23, 2021
    Assignee: Raytheon Company
    Inventor: Stephen Kuznetsov
  • Patent number: 11181580
    Abstract: A non-volatile computer data storage programming system includes a scan chain modification configured to receive a default model defining a scan chain of an industry standardized device. A controller is in signal communication with the scan chain modification system, and is configured to program an industry standardized device. A non-volatile computer data storage device is configured to receive data from the industry standardized device. The scan chain modification system modifies the default model to generate a new model including a reduced scan chain, and the controller programs the industry standardized device based on the new model such that the industry standardized device is programmed with the reduced scan chain.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: November 23, 2021
    Assignee: RAYTHEON COMPANY
    Inventors: Matthew S. Zobel, Brian R. Gonzales, Jose A. Becerra, Javier Munoz
  • Patent number: 11183746
    Abstract: A reflective microstrip tuning circuit that operatively couples to another circuit to be tuned, in which tuning circuit receives an incident signal from the other circuit and enables adjustment of the amplitude and/or phase of the return signal reflected by the tuning circuit for use in the other circuit. The tuning circuit includes one or more cascaded couplers that divide power from the incident signal unequally among a plurality of adjustable tuning arms, in which the tuning arms may be individually adjusted to change the phase of the signal that is reflected by each arm so that both the amplitude and phase of the signal returned by the tuning circuit is adjusted to achieve the desired tuning result. The difference in the power that is divided among the tuning arms provides a progressive weighting to the adjustment effect of each tuning arm, which provides for a series of coarse through fine adjustments that enables a greater degree of resolution when tuning.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: November 23, 2021
    Assignee: Raytheon Company
    Inventor: Gary Ian Moore
  • Patent number: 11183770
    Abstract: An RF antenna feed module uses an optical feed network and photo-detectors to generate RF feed signals to drive a dual polarization RF antenna to produce an RF beam with a variable polarization state. The optical feed network and suitably the photo-detectors are monolithically fabricated PIC. Multiple modules may be configured to drive a dual polarization RF phased array. A single feed module can produce RF feed signals over a frequency range of at least 300 GHz.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: November 23, 2021
    Assignee: Raytheon Company
    Inventors: Benn Gleason, Sean D. Keller, Gerald P. Uyeno, John P. Gianvittorio, Larry C. Martin
  • Publication number: 20210359429
    Abstract: Methods and apparatus for providing a radiator having an antenna comprising a patch antenna layer and a first ground plane layer, wherein the antenna has a reactive field region of the radiator between the patch antenna layer and the first ground plane layer, and an integrated circuit located in the active region.
    Type: Application
    Filed: May 15, 2020
    Publication date: November 18, 2021
    Applicant: Raytheon Company
    Inventors: Thomas V. Sikina, John P. Haven, Channing P. Favreau
  • Publication number: 20210360772
    Abstract: Methods and apparatus for providing a cavity defined by conductive walls, a printed circuit board (PCB) within the cavity, and shorting posts extending into the cavity to suppress higher order modes generated by operation of the PCB.
    Type: Application
    Filed: May 15, 2020
    Publication date: November 18, 2021
    Applicant: Raytheon Company
    Inventors: Thomas V. Sikina, John P. Haven, James E. Benedict, William J. Clark, Channing P. Favreau, Erika Klek, Mikhail Pevzner, Donald G. Hersey, Gregory G. Beninati, Thomas J. Tellinghuisen
  • Publication number: 20210359737
    Abstract: Methods and apparatus for providing a generic beamforming system. A first processing layer can process digitized array data to form subarrays and output subarray data for the formed subarrays. A second processing layer can process the subarray data to form beams and output beamforming data for a plurality of modules. A third processing layer can process the beamforming data to process the beamforming data and generate formed beams for the array.
    Type: Application
    Filed: May 15, 2020
    Publication date: November 18, 2021
    Applicant: Raytheon Company
    Inventors: Kenneth Ho, Jenet Peng, Bennett Naden, Alyse C. Bowers
  • Patent number: 11174048
    Abstract: A satellite has thrusters that are integral parts of its frame. The frame defines cavities therein where thrusters are located. The thrusters may include an electrically-operated propellant and electrodes to activate combustion in the electrically-operated propellant. The frame may be additively manufactured, and the propellant and/or the electrodes may also be additively manufactured, with the frame and the propellant and/or the electrodes also being manufactured in a single process. In addition the thrusters may have nozzle portions through which combustion gases exit the thrusters. The thrusters may be located at corners and/or along edges of the frame, and may be used to accomplish any of a variety of maneuvers for the satellite. The satellite may be a small satellite, such as a CubeSat satellite, for instance having a volume of about 1 liter, and a mass of no more than about 1.33 kg.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: November 16, 2021
    Assignee: Raytheon Company
    Inventors: Frederick B. Koehler, Jeremy C. Danforth, Ward D. Lyman, Mark T. Langhenry, Matt H. Summers, Paul E. Pontius, Brian M. Pape, Jared D. Stallings, James K. Villarreal, Thomas Villarreal