Patents Assigned to Raytheon Company
  • Publication number: 20190158110
    Abstract: An analog-to-digital conversion system includes two quantizers having a least significant bit arranged in a parallel pair. An input circuit coupled to the quantizers provides an analog input signal to the quantizers. A dither generator coupled to the quantizers provides an analog differential dither signal for perturbing quantization of the analog input signal. A combiner coupled to the quantizers adds respective outputs of the quantizers to obtain a linearized digital representation of the analog input signal.
    Type: Application
    Filed: November 21, 2017
    Publication date: May 23, 2019
    Applicant: Raytheon Company
    Inventors: Ian S. Robinson, James Toplicar, John G. Heston
  • Patent number: 10297919
    Abstract: An antenna is provided from a dielectric wedge waveguide having an AMC wall feed structure 15 coupled thereto through a transition which matches the impedance of the AMC feed structure to dielectric wedge so as to ensure efficient transmission of RF signals between the AMC wall feed structure and the dielectric wedge. In some embodiments, the antenna may be implemented as a flush mounted or conformal antenna on an outer surface of a supporting platform.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: May 21, 2019
    Assignee: Raytheon Company
    Inventors: Jackson Ng, Charles G. Gilbert, Sergio A. Pizarro
  • Patent number: 10298212
    Abstract: A hybrid energy storage system is configured to control pulsed power. A first dynamo-electric machine is coupled to an inertial energy storage device and has multiple input stator windings configured to accept input power from a source. A polyphase output stator winding is configured to deliver electric power having a first response time to a DC bus. A secondary energy storage system is coupled to the DC bus and is configured to convert its stored energy to electric power in a bidirectional manner. A second dynamo-electric machine has an input stator winding and at least one polyphase output stator winding coupled to a converter, the converter coupled to a DC output. A polyphase boost exciter is configured to derive energy from the DC bus and excite the second machine input stator winding, wherein the second machine is configured to be excited at a faster rate than the first response time of the first machine.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: May 21, 2019
    Assignee: Raytheon Company
    Inventor: Stephen Kuznetsov
  • Patent number: 10296174
    Abstract: A method, apparatus and computer software for coding for tracks in a system is presented. At least one track of an object is determined on a detection display map, the track having an icon associated therewith. The icon is supplemented with a shape indicating additional information relating to attributes of the track, the shape providing perceptual visual awareness for an operator of said system. The shape includes an indicator of at least one of direction, velocity, path uncertainty, and a level of urgency of the track of the object.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: May 21, 2019
    Assignee: RAYTHEON COMPANY
    Inventors: Richard Steinberg, Daniel T. Donohoo
  • Patent number: 10297968
    Abstract: A system includes a master oscillator configured to generate a low-power optical beam. The system also includes a planar waveguide (PWG) amplifier configured to receive the low-power optical beam and generate a high-power optical beam having a power of at least about ten kilowatts. The PWG amplifier includes a single laser gain medium configured to generate the high-power optical beam. The single laser gain medium can reside within a single amplifier beamline of the system. The master oscillator and the PWG amplifier can be coupled to an optical bench assembly, and the optical bench assembly can include optics configured to route the low-power optical beam to the PWG amplifier and to route the high-power optical beam from the PWG amplifier. The PWG amplifier could include a cartridge that contains the single laser gain medium and a pumphead housing that retains the cartridge.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: May 21, 2019
    Assignee: Raytheon Company
    Inventors: David M. Filgas, Stephen H. McGanty
  • Patent number: 10298256
    Abstract: An analog-to-digital conversion system includes two quantizers having a least significant bit arranged in a parallel pair. An input circuit coupled to the quantizers provides an analog input signal to the quantizers. A dither generator coupled to the quantizers provides an analog differential dither signal for perturbing quantization of the analog input signal. A combiner coupled to the quantizers adds respective outputs of the quantizers to obtain a linearized digital representation of the analog input signal.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: May 21, 2019
    Assignee: Raytheon Company
    Inventors: Ian S. Robinson, James Toplicar, John G. Heston
  • Patent number: 10298164
    Abstract: A system includes a plurality of actuators configured to provide forces to an actuatable member to actuate the member between a first position and a second position during an actuation mode. The actuators are also configured to return the member from the second position to the first position during a retrace mode. The system also includes a controller configured to control the actuators. The controller is configured to identify a back electromotive force (BEMF) of each of the actuators during the retrace mode. The controller is also configured to responsively provide control signals to drive the actuators such that the forces provided by the actuators to the member during the actuation mode are substantially equal.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: May 21, 2019
    Assignee: Raytheon Company
    Inventors: Lawrence E. Savage, II, Patrick J. Sigler, James Robarge, Gary R. Herrington, Mark Gohlke, Steven Palomino
  • Patent number: 10287027
    Abstract: An expandable liquid tank device is secured to a vehicle to provided externally pressurized fuel to the fuel system of the vehicle. The tank can comprise an outer bladder containing a flexible inner bladder. An end plate can secure the bladders to the vehicle. Upon depositing fuel into the flexible inner bladder, the outer bladder expands and conforms to a tank region of the vehicle. The outer bladder (a pliable material) transitions from a flexible state to a semi-rigid or substantially rigid state upon depositing fuel into the flexible inner bladder. To provide pressurized fuel to the vehicle, pressurized gas is injected between the bladders, which exert pressure against the flexible inner bladder to dispense the fuel through the end plate and to the fuel system. A method of making the tank and dispensing fuel is provided.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: May 14, 2019
    Assignee: Raytheon Company
    Inventors: Clayton B. Melton, Keith A. Elkins, Thomas M. Seach
  • Patent number: 10287218
    Abstract: A method of additively manufacturing propellant elements, such as for rocket motors, includes partially curing a propellant mixture before extruding or otherwise dispensing the material, such that the extruded propellant material is deposited on the element in a partially-cured state. The curing process for the partially-cured extruded material may be completed shortly after the material is put into place, for example by the material being heated at or above its cure temperature, such that it finishes curing before it fully cools. The propellant material may be prepared by first mixing together, a fuel, an oxidizer, and a binder, such as in an acoustic mixer. After that mixing a curative may be added to the mixture. The propellant mixture may then be directed to an extruder (or other dispenser), in which the mixture is heated to or above a cure temperature prior to the deposition, and then deposited.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: May 14, 2019
    Assignee: Raytheon Company
    Inventors: Matthew H. Summers, Jeremy C. Danforth, David G. Garrett, Mark T. Langhenry
  • Patent number: 10292255
    Abstract: Heat transfer devices and systems for thermally coupling electrical components to a heatsink can comprise one or more all-metal heat transfer device(s) thermally coupling at least one electrical component to a heatsink. A heat transfer device can comprise a metal cup attached to a metal heatsink, and a metal piston and a compliant device disposed in the cup. The piston is forcible to a secured first position, upon reflowing solder, while compressing the compliant device. Upon reflowing solder again, the compliant device causes the piston to bias and attach to the electrical component to provide an all-metal thermal path and absorb assembly tolerances to avoid using thermal gap fillers. A method is provided for thermally coupling a heatsink to a plurality of electrical components via a plurality of all-metal, expandable heat transfer devices.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: May 14, 2019
    Assignee: Raytheon Company
    Inventors: Brian W. Johansen, Justin Kasemodel, James M. Elliott
  • Patent number: 10289779
    Abstract: A system for verifying functionality of a circuit design under test (DUT) includes a control station comprising at least one graphical user interface (GUI); and at least one emulator in communication with the control station. The emulator may include a verification component and a register abstraction layer (RAL), wherein the verification component is configured to implement the DUT and the RAL is configured to implement one or more communication interfaces of the DUT. A traffic predictor in communication with the at least one emulator may monitor data traffic over the communication interface between the at least one emulator and the DUT, predict a response to the data traffic by the DUT, monitor a response to the traffic by the DUT, and determine if the response by the DUT matches the predicted response.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: May 14, 2019
    Assignee: Raytheon Company
    Inventors: Luke Wolff, Neel Shah
  • Patent number: 10288393
    Abstract: A flight vehicle, such as a missile, operates both atmospherically and exo-atmospherically. The flight vehicle has control surfaces which are able to rotate relative to a fuselage of the flight vehicle, with the control surfaces extending outside of the fuselage into the airstream (or space) around the fuselage. The control surfaces may be used to control attitude in both atmospheric flight and exo-atmospheric flight. In atmospheric flight the control surfaces operate conventionally, with the aerodynamic forces on the control surfaces creating a torque on the flight vehicle. The control surfaces may be selectively positioned, such as by use of actuators, to achieve the desired torque on the flight vehicle, to achieve the desired attitude. In exo-atmospheric flight the control surfaces can be used as momentum wheels, with the control surfaces selectively rotated to produce a reaction torque on the fuselage.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: May 14, 2019
    Assignee: Raytheon Company
    Inventor: Joseph R. Corrado
  • Patent number: 10290938
    Abstract: A low profile gimbal is disclosed, such as may be used in airborne RADAR applications. The low profile gimbal can include first and second concentric motors disposed in a housing with an antenna or other active element disposed below the housing. The first motor can change the position of the antenna in azimuth. A mechanical linkage between the second motor and the antenna can change the position of the antenna in elevation based on an offset of angular velocity between the first and second motors.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: May 14, 2019
    Assignee: Raytheon Company
    Inventors: Michael S. Henneberry, Heather M. Rahbany
  • Patent number: 10288715
    Abstract: In an array antenna having a plurality of subarrays, a direction finding system and technique includes receiving signals at an array antenna and capturing data with a plurality of groups of subarrays. Each group of subarrays may capture data during a selected one of a plurality of different dwell times. The method further includes generating a plurality of dwell spatial sample covariance matrices (SCMs) using data corresponding to one or more of the plurality of groups of subarrays and combining the plurality of dwell spatial SCMs in complex form to generate an aggregate covariance matrix (ACM). The ACM may then be used in subsequent processing with MINDIST technique to estimate a direction of a received signal based on the combined data.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: May 14, 2019
    Assignee: Raytheon Company
    Inventor: James M. Bowden
  • Patent number: 10288716
    Abstract: The concepts, systems and method described herein provide direction finding (DF) methods based on a minimum distance (MINDIST) search to principal components. In an embodiment, the method includes capturing samples of data from one or more array elements. The samples may be samples of a signal received at the array elements. The method includes generating a spatial sample covariance matrix (SCM) using the samples of data, extracting principal components from the SCM and generating a principal component table using angle and frequency measurement for each of the principal components. The method further includes determining a distance between a test point and each value in the principal component table and identifying a minimum distance point corresponding to a direction of the received signal. The minimum distance point may correspond to direction of arrival of a signal on the one or more array elements.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: May 14, 2019
    Assignee: Raytheon Company
    Inventor: James M. Bowden
  • Patent number: 10289586
    Abstract: A High Performance Computing (HPC) node comprises a motherboard, a switch comprising eight or more ports integrated on the motherboard, and at least two processors operable to execute an HPC job, with each processor communicably coupled to the integrated switch and integrated on the motherboard.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: May 14, 2019
    Assignee: Raytheon Company
    Inventors: James D. Ballew, Gary R. Early
  • Publication number: 20190138242
    Abstract: A system for sharing data between two processes implements a memory arranged as a two dimensional ping/pong buffer where a writing operation alternately swaps buffers in one dimension and a reading operation swaps buffers in the other dimension. Accordingly, writing is into one or the other of a reading buffer set not currently being read with each write alternating between the write buffers. Data is retrieved from the buffer that is not currently being written. The buffer switching is coordinated by using commonly accessed variables between the reader and the writer and implements a system that is lock-free.
    Type: Application
    Filed: November 8, 2017
    Publication date: May 9, 2019
    Applicant: RAYTHEON COMPANY
    Inventors: Lloyd J. Lewins, Jeremy Edwards
  • Patent number: 10281571
    Abstract: A radar system uses a rotating antenna array having rows that display dispersive properties while feeding multiple radiating elements. In some embodiments, the radiating elements are dual polarized. In at least one embodiment, beam spoiling may be used to generate an unfocused transmit beam that covers an entire elevation range of interest. Digital beam forming may be used during a receive mode to achieve a stack of narrow-width receive beams in elevation. Frequency scanning may also be used to achieve stacked beams in azimuth.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: May 7, 2019
    Assignee: Raytheon Company
    Inventors: Eli Brookner, Thomas V. Sikina, Peter R. Drake, Yuchoi F. Lok, Jacqueline M. Bourgeois, Daniel F. Rypysc, Francis Hartwich, Yueh-Chi Chang, Leon Green
  • Patent number: 10285190
    Abstract: Generally discussed herein are systems, devices, and methods for scheduling node performance of communication and/or function. A method can include receiving, from a plurality of nodes, parameters indicating a trajectory and position of each of the plurality of nodes, creating a directed communication graph, creating a communications conflict graph, creating a function conflict graph indicating which function performed by one node of the plurality of nodes interferes with at least one of a function and communication performed by another node of the plurality of nodes, creating a universal conflict graph based on the communications conflict graph and the function conflict graph, creating a schedule for communication and function performance for each of the nodes based on the universal conflict graph, and providing data indicative of the schedule to nodes of the plurality of nodes.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: May 7, 2019
    Assignees: Raytheon BBN Technologies Corp., Raytheon Company
    Inventors: Joud Khoury, Christopher Paul Vander Valk, Michael Brandon Kremer, Subramanian Ramanathan, Jeffery Jay Logan, Charles Hansen
  • Patent number: 10281694
    Abstract: Aspects and embodiments are generally directed to compact anamorphic refractive objective lens assemblies. In one example, a refractive objective lens assembly includes a passively athermal anamorphic lens group including at least a first cylindrical lens having a surface optically powered in a first dimension, the first anamorphic lens group positioned to receive thermal infrared radiation, a focus cell positioned to receive the radiation from the anamorphic lens group, the focus cell including a first group of lenses each having a rotationally symmetric surface optically powered in the first dimension and a second dimension orthogonal to the first dimension, a relay lens group positioned receive the radiation from the focus cell, the relay lens group including a second group of lenses each having a rotationally symmetric surface optically powered in both the first and second dimensions, and a dewar assembly including a cold stop and an optical detector.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: May 7, 2019
    Assignee: RAYTHEON COMPANY
    Inventors: Marco A. Avila, Mark Noethen, Douglas J. Hartnett