Patents Assigned to Rockwell Collins
  • Patent number: 10833772
    Abstract: A system for Nyquist zone disambiguation of a received broadband RF signal is disclosed. The system includes continuous-wave (CW) and pulsed photonic sources whose outputs may be combined into a single input. Both CW and pulsed components of the combined photonic input are modulated by sampling the received RF input signal. The system includes hybrid couplers for IQ demodulation of the modulated combined photonic signal. The system demultiplexes the demodulated inphase and quadrature differential photonic signals into their CW and pulsed component signals. The pulsed component signals may be digitized by narrowband multibit analog-digital converters (ADC) while the CW component signals are digitized by high speed low latency mono-bit ADCs to determine frequency components (e.g., bandwidth information) and other spectrum information of the RF input signal.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: November 10, 2020
    Assignee: Rockwell Collins, Inc.
    Inventor: Wenlu Chen
  • Patent number: 10833757
    Abstract: Systems and methods of mitigating signal interference in communications involving an antenna array can include determining a radiation pattern of the antenna array in communication with a first communication device. The method can include determining that a power level or gain of the antenna array in a direction pointing to a second communication device exceeds a predefined threshold value, using the radiation pattern of the antenna array and a position of the second communication device. The method can include identifying one or more antenna elements among a plurality of antenna elements of the antenna array to be powered off or applying non-uniform weighting to the antenna elements to distort the radiation pattern of the antenna array in a way to reduce the power level or gain of the antenna array in the direction pointing to the second communication device.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: November 10, 2020
    Assignee: Rockwell Collins, Inc.
    Inventors: Roger A. Dana, Lee M. Paulsen, Nahiyan Ali, Connor C. McBryde
  • Patent number: 10833408
    Abstract: Systems and apparatuses include an electronically scanned array system including a power supply system, a radiating element subarray, a plurality of beamformer chips, and a plurality of control buses. The power supply system a first power converter structured to receive and condition mains power, a second power converter arranged in parallel with the first power converter, and a controller structured to monitor the first power converter and the second power converter and to operate one of a first switch or a second switch to provide conditioned power. The radiating element subarray includes active radiating elements, and between about one percent and about twenty percent reserve radiating elements distributed throughout the active radiating elements.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: November 10, 2020
    Assignee: Rockwell Collins, Inc.
    Inventors: Lee M. Paulsen, Thomas B. Campbell, Bryan S. McCoy, Adrian A. Hill, Dana J. Jensen, Roger A. Dana
  • Patent number: 10831947
    Abstract: A method for optimizing the design of backplane and field bus routing for avionics network architectures determines a solution space of valid configurations defined by the intersection of universes corresponding to potential aircraft sensor locations, the data content relationships for each hosted application executing on the aircraft computing center, potential remote data concentrator (RDC) configurations, and potential backplane/field bus configurations for the avionics network architecture. The method includes identifying within the solution space, via an optimization engine, optimal configuration solutions of a desired optimality level based on connectivity constraints, system survivability constraints providing spatial separation of primary and redundant sensor and data collection systems, system robustness constraints associated with minimum functional capabilities for continued safe flight and landing capability, and an objective function characterizing overall desirability.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: November 10, 2020
    Assignee: Rockwell Collins, Inc.
    Inventors: David A. Miller, Richard M. Bradford
  • Patent number: 10824889
    Abstract: Passenger rest compartments may be incorporated into remote areas of an aircraft, either in the overhead crown region or in lower lobe cargo decks. Each passenger rest compartment includes two-way audio communication with the flight deck and non-intrusive non-visual monitoring of the compartments and surrounding environment to determine passenger presence, absence, and general well-being as well as environmental safety. Rest compartments may be integrated into rest cabins in the overhead or lower lobe areas, the rest cabins accessible from the main passenger cabin via an entry vestibule providing dedicated enclosed paths to the overhead and lower cabins. Additional deployable egress hatches may allow passengers to rapidly return to the main deck from the overhead and lower lobe cabins in the event of an emergency. Selected passenger seats (e.g., partitioned or other premium seats) may include private access to passenger rest compartments.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: November 3, 2020
    Assignee: Rockwell Collins, Inc.
    Inventors: Nicolas Behr, Art M. Escobar, Ron Moss, Randall S. Weaver, Thomas P. Munson, David Barrett, Trevor Skelly, Jefferey M. McKee, Daniel N. Moe, Travis J. Vaninetti, R. Klaus Brauer
  • Patent number: 10820160
    Abstract: A system and method for HF positioning characterizes the undulations of the ionosphere in real-time to determine the refraction altitude of a specific HF frequency at a specific time of day at a specific position. The system accounts for the seasonal (summer, winter) and daily (daylight, night, grey-line transition) variations of the ionosphere determining a highly accurate timing error relative to a timing reference. The system employs a novel approach that is capable of passively and accurately determining a position anywhere in the world without use of a GNSS signal receiving known-time transmissions of narrow band HF timing signals refracted via ionospheric skywave.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: October 27, 2020
    Assignee: Rockwell Collins, Inc.
    Inventors: Timothy E. Snodgrass, John V. Thommana
  • Patent number: 10811787
    Abstract: An electronically scanned antenna array (ESA) includes a first band including first antennas and a second band including second antennas. Each first antenna operates over a first frequency bandwidth from a first frequency to a second frequency. At least two adjacent first antennas are spaced from one another by a first value of a wavelength scale parameter that corresponds to the second frequency. Each second antenna operates over a second frequency bandwidth from the first frequency to a third frequency greater than the first and less than the second frequency. At least two adjacent second antennas are spaced from one another by a second value of the wavelength scale parameter that corresponds to the third frequency. A second subset of the plurality of second antennas is adjacent to a first subset of the plurality of first antennas and spaced from the first subset based on the wavelength scale parameter.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: October 20, 2020
    Assignee: Rockwell Collins, Inc.
    Inventors: James B. West, Aimee M. Matland
  • Patent number: 10810967
    Abstract: A federated display system includes multiple head down displays (HDD) driven by two or more display processing computers (DPC). Each DPC includes two or more display nodes independently managing display processing, graphics generation, and I/O functionality (either within a single processing unit or a multiprocessor environment). Each display node is linked to a mezzanine control plane (MCP) independent of the display nodes, which MCP includes dedicated optical channels to each member HDD of the system and a switching fabric to control the routing of graphical signals from the graphics generators of each node to the optical channel connected to the desired target HDD. The switching fabric includes a master selector for designating any node of a DPC as a master node capable of controlling the switching fabric via its processing control or graphics generation functions.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: October 20, 2020
    Assignee: Rockwell Collins, Inc.
    Inventors: Matthew P. Corbett, Anthony J. Kriege, Eric N. Anderson
  • Patent number: 10809743
    Abstract: An airborne platform includes an avionics controller circuit. The avionics controller circuit is configured to receive an ownship orientation from a sensor configured to detect the ownship orientation. The avionics controller circuit is configured to determine an orientation parameter based on the ownship orientation. The avionics controller circuit is configured to compare the orientation parameter to an orientation threshold. The avionics controller circuit is configured to determine the ownship to be in a wake vortex condition based on at least one wake vortex criteria, the at least one wake vortex criteria including the orientation parameter being greater than the orientation threshold for more than a predetermined period of time.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: October 20, 2020
    Assignee: Rockwell Collins, Inc.
    Inventor: Patrick D. McCusker
  • Patent number: 10812133
    Abstract: A communication device may include a communication interface configured to receive signals and a controller configured to: receive an input signal based on the received signals; perform transform operations on the input signal to generate a spectral periodogram of the input signal; calculate spectral vector powers for each bin of a plurality of bins of the spectral periodogram; determine a median spectral power for a selected range of bins of the plurality of bins; generate a median-scaled spectral density vector based on the median spectral power and a reference spectral density of an expected signal; calculate a detection threshold vector based at least in part on the median-scaled spectral density vector; and identify one or more interference-including bins of the plurality of bins of the spectral periodogram by comparing the spectral vector powers for each bin of the plurality of bins to the detection threshold vector.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: October 20, 2020
    Assignee: Rockwell Collins, Inc.
    Inventor: Carlos J. Chavez
  • Patent number: 10809375
    Abstract: The hazard warning system includes processing system for detecting an HVB condition. The aircraft warning system can use at least two types of radar returns and can measure decorrelation time to detect the HVB condition. Warnings of HVB conditions can allow an aircraft to avoid threats posed by such conditions including damage to aircraft equipment and engines.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: October 20, 2020
    Assignee: Rockwell Collins, Inc.
    Inventors: Roger A. Dana, James B. West, Kevin M. Kronfeld, Jeffery A. Finley
  • Patent number: 10793286
    Abstract: An on-board computer system includes a first neural network trained to receive a video stream of a landing approach, runway data, and aircraft state data and identify environmental landmarks corresponding to components of the runway and environmental obstacles that might interfere with autonomous landing. The on-board computer system also includes a second neural network that receives a flight path vector and a flight director corresponding to vectors based on the aircraft energy state and a desired aircraft flight path respectively. The second neural network determines flight control inputs to bring the flight path vector into conformity with the flight director.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: October 6, 2020
    Assignee: Rockwell Collins, Inc.
    Inventors: Matthew J. Carrico, Carlo L. Tiana
  • Patent number: 10797920
    Abstract: System for generating a constant envelope and suppressed cyclic feature signal may include a transmission security (TRANSEC) function, a spread spectrum chip, an M-ary continuous phase modulator, and a pulse-shaped filter. The TRANSEC may generate a pseudorandom symbol by M-ary symbol generation selects a symbol with a signal phase, and the spread spectrum chip corresponding to the generated pseudorandom symbol or a phase rotation of the pseudorandom symbol. The M-ary continuous phase modulator with a delta-phase mapper maps the signal phase based at least in part on the selected symbol. The pulse-shaped filter of the M-ary modulator introduces inter-symbol interference from a previous and a subsequent symbol into a current symbol; the inter-symbol interference may be introduced by the main lobe of the signal phase being contained within a bandwidth of a chip rate of the spread spectrum chip for frequency modulation signal transmission of information by the generated signal.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: October 6, 2020
    Assignee: Rockwell Collins, Inc.
    Inventor: Carlos J. Chavez
  • Patent number: 10795160
    Abstract: A near eye optical display includes a waveguide comprising a first surface and a second surface, an input coupler, a fold grating, and an output grating. The input coupler is configured to receive collimated light from a display source and to cause the light to travel within the waveguide via total internal reflection between the first surface and the second surface to the fold grating; the fold grating is configured to provide pupil expansion in a first direction and to direct the light to the output grating via total internal reflection between the first surface and the second surface; and the output grating is configured to provide pupil expansion in a second direction different than the first direction and to cause the light to exit the waveguide from the first surface or the second surface.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: October 6, 2020
    Assignees: Rockwell Collins, Inc., Digilens Inc.
    Inventors: James H. Stanley, Jonathan David Waldern, Milan Momcilo Popovich, Alastair John Grant, Steven J. Robbins
  • Patent number: 10788325
    Abstract: A navigation system is configured to identify a current location and a destination location of an airborne platform, identify a current cell in which the current location is located; identify a plurality of current neighbors associated with the current cell; calculate, for a first path from the current location to the destination location through a first current neighbor of the plurality of current neighbors, a first value of an objective function, the first value depending on whether the first path includes a predetermined navigational node; calculate, for a second path from the current location to the destination location through a second current neighbor of the plurality of current neighbors, a second value of the objective function depending on whether the second path includes a predetermined navigational node; and output the current neighbor and/or path that satisfies an objective condition based on the values.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: September 29, 2020
    Assignee: Rockwell Collins, Inc.
    Inventors: Paul A. Lenhardt, Jason J. Jakusz, Titus N. Thompson, James W. Toothaker, Joseph C. Diner
  • Patent number: 10791477
    Abstract: Embodiments of the inventive concepts disclosed herein are directed to systems and methods for data link acquisition using multichannel transceivers. A first transceiver may scan a first set of frequencies for a first signal at a first frequency from a first ground station. A second transceiver may scan a second set of frequencies for a second signal at a second frequency from a second ground station. The second set may be higher than the first set. A controller of the avionics radio device may be communicatively coupled to the first transceiver and the second transceiver. The controller may compare the first signal quality of the first signal with the second signal quality of the second signal. The controller may commence a data link with the first ground station or the second ground station via one of the first and second transceivers of the avionics radio device based on the comparison.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: September 29, 2020
    Assignee: Rockwell Collins, Inc.
    Inventor: Neil J. Earnhardt, Jr.
  • Patent number: 10791010
    Abstract: In embodiments, a communication node of a multi-node communication network includes a controller communicatively coupled to a communication interface, wherein the controller is configured to: acquire a data payload to be transmitted based on a randomized transmission interval; duplicate a bit sequence of the data payload with a selected spreading pattern; perform bit-to-symbol mapping of the bit sequence based on a selected M-ary number to generate a data payload symbol sequence; randomize a location or value of one or more pilot symbols and one or more data carriers of the data payload symbol sequence; transform frequency-domain symbols of the data payload symbol sequence into time-domain symbols to generate a time-domain data payload signal; remove amplitude fluctuation of the data payload signal to generate a phasor data payload signal; and transmit the phasor data payload signal to at least one additional communication node of the multi-node communication network.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: September 29, 2020
    Assignee: Rockwell Collins, Inc.
    Inventors: Ryan M. Murphy, Carlos J. Chavez, Michael N. Newhouse
  • Patent number: 10789854
    Abstract: A graphical depiction of an exclusion zone on an airport movement surface is disclosed. The graphical depiction may be displayed on a display device of an aircraft. The display device may be further configured to display an aircraft ownship symbol. A location of the aircraft ownship symbol on the display device may be dependent on one or more signals related to the location of the aircraft relative to the airport movement surface. The display device of the aircraft may be configured to exit a taxi mode or enter the taxi mode based on a comparison between the exclusion zone and the one or more received signals.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: September 29, 2020
    Assignee: Rockwell Collins, Inc.
    Inventor: Marcin Kolesinski
  • Patent number: 10784568
    Abstract: An antenna system is disclosed. In embodiments, the antenna system may include a communication sub-system disposed within an aircraft. The communication sub-system may include one or more power supply components configured to generate a direct current (DC) power supply, and a first capacitive coupling device configured to capacitively couple an alternating current (AC) transmit signal to the DC power supply to form an antenna input signal. In embodiments, the antenna system may further include an electrical line configured to transmit the antenna input signal from the communication sub-system to an antenna module. In embodiments, the antenna module may include a second capacitive coupling device configured to de-couple the DC power supply and the AC transmit signal, communication circuitry configured to generate one or more transmission signals based on the AC transmit signal.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: September 22, 2020
    Assignee: Rockwell Collins, Inc.
    Inventors: Theodore J. Hoffmann, Jonathan A. Lovseth
  • Patent number: 10775632
    Abstract: A system and method for augmented reality (AR) visor light security employs an optical shutter to mitigate illumination escaping from a see-through waveguide holographic AR display incorporated with a ballistic visor. Based on a security level of the environment, the user selects an auto or manual mode to command a full transmittance, partial transmittance, or full occlusion automatically set via ambient sensors within the system to remove glare and better view a contrast of AR images presented on the waveguide. In high security, the user relies solely on enhanced vision systems display on the waveguide for situational awareness and desire a full bi-directional occlusion of the optical shutter allowing zero emissions from the visor. An optical shutter sensor continuously measures the current level of occlusion to ensure it matches a commanded occlusion and if not, the system disables the display source and removes the occlusion.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: September 15, 2020
    Assignee: Rockwell Collins, Inc.
    Inventors: Siva K. Chapalamadugu, Wyatt L. Hendrick, Tyrone O'Brien, Robert Civilikas, Luca Rigolin