Patents Assigned to SAFRAN ELECTRONICS AND DEFENSE
  • Publication number: 20230245819
    Abstract: A connection system for exchanging electrical signals, includes a first symmetrical connector, and a second symmetrical connector. Each symmetrical connector has at least one magnetic core provided with at least one turn. The symmetrical connectors are produced in a substrate made of insulating material so as to form a half of a coupling transformer At least one half of the coupling transformer of each connector is arranged opposite one another so as to be able to exchange a magnetic flux. The electrical signals are emitted by the first connector in the form of a magnetic flux, and the second connector generates the electrical signals on receiving the magnetic flux.
    Type: Application
    Filed: May 20, 2021
    Publication date: August 3, 2023
    Applicant: SAFRAN ELECTRONICS & DEFENSE
    Inventors: François GUILLOT, Patrice CHETANNEAU, Pascal SPOOR
  • Patent number: 11703347
    Abstract: The method of preparing a navigation autonomy map for a vehicle covering a zone including path segments, comprising the following steps: identifying the path segments for which the map needs to be prepared; for each path segment, calculating a primary autonomy index in accordance with at least two distinct functions; and calculating for each path segment a final autonomy index by taking a weighted average of the primary autonomy indices. An autonomy map, an application of the autonomy map, and a vehicle using such an autonomy map.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: July 18, 2023
    Assignees: Safran Electronics & Defense, Valeo Schalter UND Sensoren GMBH
    Inventors: Emmanuel Robert, Jacques Yelloz, Philippe Gougeon
  • Patent number: 11700297
    Abstract: A data loading device for loading data into computer processor units from a data source, the device comprising at least a first connector for connecting to the data source and provided with a PHY component, and a plurality of second connectors for connecting to the computer processor units and each provided with a respective PHY component, the first connector being connected to the second connectors by a first selector module in order to define a single down channel so as to transmit data from the first connector to each of the second connectors individually, and by a second selector module for defining a single up channel so as to transmit data in the opposite direction, the selector modules being arranged to be capable of connecting only one of the second connectors at a time to the first connector and the device including a control unit for controlling the selector modules to select which second connector to connect to the first connector.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: July 11, 2023
    Assignee: SAFRAN ELECTRONICS & DEFENSE
    Inventors: Pascal Regache, Philippe Elie
  • Patent number: 11698317
    Abstract: A measurement device for measuring the pressure of a wheel (3) of a vehicle, the measurement device comprising a stationary portion (5) and a movable portion (14) for being driven in rotation by the wheel, the stationary portion including a first printed circuit (7) having at least one first track formed thereon defining a first winding, the movable portion including a second printed circuit (16) having at least one second track formed thereon defining a second winding, the second printed circuit being arranged to be connected to a pressure sensor (15), the first winding and the second winding being coupled together to form a wireless communication channel, the measurement device being arranged in such a manner that the pressure sensor is electrically powered by the stationary portion via the wireless communication channel, and in such a manner that uplink data comprising pressure measurement data is transmitted to the stationary portion (5) by the movable portion (14) via the wireless communication channel.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: July 11, 2023
    Assignees: SAFRAN LANDING SYSTEMS, SAFRAN ELECTRONICS & DEFENSE
    Inventors: Joel Zabulon, Didier Levavasseur
  • Patent number: 11687190
    Abstract: A multitouch touch device (DIS) employing capacitive detection, including: a touch matrix array and a first voltage-generating source configured to generate, for each row and each column of the matrix array, a first input voltage having a first frequency leading to the generation of a first output voltage. The device also includes a second voltage-generating source for generating, for each intersection between at least two rows and two columns of the matrix array, a second input voltage having a second frequency different from the first frequency leading to the generation of a second output voltage. A processing circuit is configured to determine, depending on first and second reference values, whether the first and second output voltages are representative of a press and of its position.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: June 27, 2023
    Assignee: SAFRAN ELECTRONICS & DEFENSE COCKPIT SOLUTIONS
    Inventor: Laurent Chadirac
  • Patent number: 11664885
    Abstract: The invention relates to a communication network for an aircraft comprising at least one processing member and a first switch which is connected to the first processing member in order to provide data exchange within the first processing member and/or between the first processing member and at least one user terminal remote from the first processing member and connected to the first switch. According to the invention, the first switch comprises local means for observing logical communication channels of the first switch, and the first processing member includes means for controlling said observation means.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: May 30, 2023
    Assignee: SAFRAN ELECTRONICS & DEFENSE
    Inventors: Patrice Toillon, Francois Guillot
  • Patent number: 11662207
    Abstract: Inertial measurement apparatus arranged to be carried by a carrier vehicle include a chassis, a turntable mounted on the chassis, a first inertial measurement unit mounted on the turntable and connected to an electronic control unit connected to a motor for controlling turning of the turntable, and a second inertial measurement unit secured to the chassis. The control unit turns the turntable through one revolution with periodic alternating motion from a fixed initial angular position of the turntable. The control unit calculates the acceleration of the carrier vehicle from measuring the first inertial measurement unit while the turntable is stationary and from measuring the second inertial measurement unit while the turntable is moving. The control unit reconstitutes an inertial reference frame for each inertial measurement unit and compares the two inertial reference frames to determine a difference and takes account of this difference when calculating the acceleration.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: May 30, 2023
    Assignee: SAFRAN ELECTRONICS & DEFENSE
    Inventors: Christian Lignon, Philippe Elie, Sylvain Faure
  • Patent number: 11655053
    Abstract: A method determines an inflation pressure expected in an aircraft tire provided with a pressure and temperature sensor. Also disclosed is a method for assistance in the maintenance for an aircraft tire and also a portable electronic device intended for assistance in the maintenance.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: May 23, 2023
    Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, SAFRAN, SAFRAN LANDING SYSTEMS, SAFRAN ELECTRONICS & DEFENSE
    Inventors: Michael Arnoux, Eric Carin Neba
  • Patent number: 11648949
    Abstract: A method of controlling a vehicle having wheels provided with tires resting on a surface, the method using a model of the physical behavior of each tire as a function of a sideslip angle (?ij) for each tire relative to the surface. The model is obtained by implementing an adaptive algorithm that selectively applies an affABREGEine model (Z1), a DUGOFF model (Z2), or a constant model (Z3).
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: May 16, 2023
    Assignees: SAFRAN ELECTRONICS & DEFENSE, ARMINES—Association Pour La Recherche Et Le Developpement Des Methodes Et Processus Industriels
    Inventors: Laëtitia Li, Brigitte D'Andrea-Novel, Sylvain Thorel, Aurélien Richard
  • Patent number: 11643718
    Abstract: A module for operating a carrier of one or more substrates to be treated in a vacuum deposition method includes a frame provided with a plate receiving, on a first side, an electronic assembly comprising radio transmitter/receiver electronics, a processor card, motor controller electronics and a battery for supplying power to the module. The processor card has a program memory with a program for controlling the motor controller electronics according to data received from a remote apparatus provided with a radio transmitting/receiving device for communicating with the module's radio transmitter/receiver electronics and, on a second side, a device for operating the carrier, which device is provided with a first motor for rotating the carrier about a first axis parallel to the plate and with a second motor for rotating the carrier about a second axis perpendicular to the plate.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: May 9, 2023
    Assignee: SAFRAN ELECTRONICS & DEFENSE
    Inventors: Maxime Parailloux, Joël Fleury, Cyril Dupeyrat
  • Publication number: 20230127673
    Abstract: A method for processing flight data having been recorded during three or more flights of an aircraft by a flight data recorder including obtaining two signature vectors with respective sizes, the two signature vectors corresponding to two different flights among the three or more flights, determining a similarity matrix, the components of which quantify the proximity between the two flight signature vectors, each component allowing identifying, for each element of a first signature, an element of the other signature which is closest, the proximity between two components of the signature vectors being a distance weighted by a mean value of the neighboring components of the similarity matrix, repeating the obtaining and determining in order to compare, two by two, all the flight signatures so as to obtain three or more similarity matrices, and processing said similarity matrices in order to evaluate the similarity between two flights.
    Type: Application
    Filed: March 23, 2021
    Publication date: April 27, 2023
    Applicants: SAFRAN ELECTRONICS & DEFENSE, UNIVERSITE DE TECHNOLOGIE DE TROYES
    Inventors: Nicolas CHRYSANTOS, Fabrice FERRAND, Pierre BEAUSEROY
  • Patent number: 11635524
    Abstract: A method of detecting an operation to spoof a first positioning device carried by a first vehicle moving in a zone in which at least one second vehicle carrying a second positioning device is also moving, the method comprising the step of causing at least one first positioning value to be calculated for each vehicle from initial satellite signals received by each device; the method being characterized in that it further comprises the steps of: causing the second device to initiate a latching stage in order to make a new search for satellite signals and using the new satellite signals received by the second device to calculate a second positioning value for the second vehicle at the same instant as the first value; comparing the first and second values relating to the second vehicle; and issuing a warning when the two values do not coincide.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: April 25, 2023
    Assignee: SAFRAN ELECTRONICS & DEFENSE
    Inventor: Yves Becheret
  • Publication number: 20230121125
    Abstract: A method for dating images obtained by at least one camera equipping a vehicle includes acquiring a reference signal including time information and generating a modulated signal in response to the reference signal. The modulated signal has at least one retiming pulse with a retiming period which that is different from a base period of the modulated signal. The method further includes, for each camera acquiring images at a frequency depending on the frequency of the modulated signal, each image being associated with a timestamp provided by the camera, and determining the time difference between the timestamps of two successive images of the camera. If the time difference determined between said timestamps is different from the base period of the modulated signal, the method assigns a reference date to said images depending on the time information of the reference signal.
    Type: Application
    Filed: March 11, 2021
    Publication date: April 20, 2023
    Applicant: SAFRAN ELECTRONICS & DEFENSE
    Inventors: Marc-Emmanuel COUPVENT DES GRAVIERS, Alban MICHELANGELI, Thierry PLANAT
  • Patent number: 11631989
    Abstract: An electrical supply holding circuit includes a primary stage and a secondary stage. The primary stage includes a voltage connector connected to a supply network, and a primary winding connected to a voltage converter. The secondary stage includes a secondary winding facing the primary winding, the primary and secondary windings forming two coupled inductances, and a voltage controller to which the secondary winding is connected, the voltage controller being connected to a load and controlling a voltage across the terminals of the load. Directions of the currents flowing through the primary and secondary windings are the reverse of one another, and the voltage converter stops the supply to the primary winding when the supply voltage is less than a threshold voltage and resumes the supply to the primary winding when the supply voltage is greater than a threshold voltage.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: April 18, 2023
    Assignee: SAFRAN ELECTRONICS & DEFENSE
    Inventor: Louis Grimaud
  • Patent number: 11628925
    Abstract: The present invention relates to a force application device for a control stick of an aircraft comprising a shaft and a control lever configured to rotate the shaft about a first axis, the device comprising: a magnetic brake comprising a braking part configured to be connected to the shaft, and a volume containing a rheological fluid in contact with the braking part, of variable shear resistance as a function of a magnetic field applied to the rheological fluid, a force feedback motor configured to exert a resistive force opposing the rotation of the shaft about the first axis, a motor power source, a movable magnetic element biased towards a position close to the magnetic brake, and distancing means configured to maintain the movable magnetic element in a position away from the magnetic brake, when such distancing means are powered by the power source.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: April 18, 2023
    Assignee: SAFRAN ELECTRONICS & DEFENSE
    Inventors: Remi-Louis Lawniczak, Pascal Coppée, Yannick Attrazic
  • Publication number: 20230116617
    Abstract: A rotating electric machine includes a rotor and a wound stator. The wound stator has a stator shaft, wherein the stator coils are inserted in the rotor, and the stator shaft is inserted in the center of the rotor. At least one angular position sensor of the rotor is inserted in the center of the space delimited by the stator shaft and the rotor.
    Type: Application
    Filed: October 7, 2022
    Publication date: April 13, 2023
    Applicant: SAFRAN ELECTRONICS & DEFENSE
    Inventors: Blaise LAPÔTRE, Julien ARGENTON, Yannick ATTRAZIC, Xavier Marcel Adolphe FERRAUD
  • Publication number: 20230100288
    Abstract: The invention relates to a method for calibrating a receiver comprising a plurality of analog reception channels each including an antenna element of a multi-element antenna, the plurality of analog reception channels comprising a reference channel, the method comprising determining (E1-E4) and correcting (E5), for each analog reception channel other than the reference channel, a phase shift with the reference channel, said determination comprising: calculating (E1) an observed covariance matrix (RZZt,e) representative of the covariance between samples (Zte), collected in parallel on each of the analog reception channels over a period of time, of one or more incident reference radio signals on the multi-element antenna, obtaining (E2) an estimate () of a reference covariance matrix representative of the covariance between samples of said incident radio signal(s) which would be collected in parallel on each of the analog reception channels over the period of time in the absence of phase shift between the an
    Type: Application
    Filed: September 8, 2022
    Publication date: March 30, 2023
    Applicant: SAFRAN ELECTRONICS & DEFENSE
    Inventor: Alain Michel CHIODINI
  • Publication number: 20230096412
    Abstract: A method (100) for characterising processing differences between analog channels, the method comprising injecting (102) three analog signals into a first analog channel and a second analog channel, digitising (104) these signals so as to obtain digital signals xk, xl and yl having N samples, estimating (106) parameters ?k,l and ?k,l from the digital signals, where ?k,l is a ratio between an amplitude of the first analog signal at the output of the first analog channel and an amplitude of the second analog signal at the output of the second analog channel, and where ?k,l is a difference between a phase shift induced by the first analog channel in the first analog signal and a phase shift induced by the second analog channel in the second analog signal, the estimation comprising the application of a least squares method in order to determine values of the parameters ?k,l and ?k,l minimising the following quantity: ? n = 1 N ( x k ( n ) - ? k , l ( cos ? ( ? k , l ) ? x l ( n
    Type: Application
    Filed: September 26, 2022
    Publication date: March 30, 2023
    Applicant: SAFRAN ELECTRONICS & DEFENSE
    Inventor: Alain Michel CHIODINI
  • Publication number: 20230094700
    Abstract: A method for navigating a carrier using a Kalman filter estimating a navigation state of a carrier, comprising: obtaining, from a signal transmitted by the satellite and subsequently received by the carrier, a delta range measured between the carrier and a satellite and another measured kinematic datum which is associated with the satellite, generating, from position data for the carrier and the satellite in the navigation state, an estimated delta range between the carrier and the satellite, calculating, using the delta ranges, a delta range innovation associated with the satellite, carrying out a test on the delta range innovation, the test result indicating whether or not the signal was a multi-path signal, using, by means of the filter, the kinematic datum as an observation to update the navigation state provided that the test result indicates that the signal was not a multi-path signal.
    Type: Application
    Filed: February 19, 2021
    Publication date: March 30, 2023
    Applicant: Safran Electronics & Defense
    Inventors: Loïc DAVAIN, Kévin HONORE, Clément MISANDEAU
  • Patent number: 11614329
    Abstract: A method of monitoring at least first and second inertial measurement units, the first inertial measurement unit and the second inertial measurement unit being connected to the same electronic processor circuit and being arranged to determine both a specific force vector in an accelerometer measurement reference frame and also rotation data concerning turning of the accelerometer measurement reference frame relative to an inertial reference frame; the electronic processor circuit performs the steps of projecting the specific force vectors into an inertial reference frame by using the rotation data; comparing the two specific force vectors as projected into said reference frame with each other in order to determine a difference between them; and monitoring variation in this difference over time.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: March 28, 2023
    Assignee: SAFRAN ELECTRONICS & DEFENSE
    Inventors: Philippe Elie, Etienne Brunstein, Fabrice Delhaye