Abrégé

An ultracold-atom sensor includes an atom chip (ACh) comprising a first and a second waveguide (CPWX1, CPWX2) that are suitable for propagating microwave waves and DC currents, at least a first conductive wire and a second conductive wire (WId, WId1) the respective projections of which are secant at a point defining a first crossing point (C1), an atom generation device (ACG), a power supply device (PSD) comprising at least one microwave generator (GMW) and at least one DC current generator (GDC), the power supply device being configured to apply, to the first and second waveguides and to spatially separate the two traps, the microwave signals in order to initiate the spatial separation, and then the CMW electric currents instead of the microwave signals in order to maintain the spatial separation.

Classes IPC  ?

• G01P 15/08 - Mesure de l'accélération; Mesure de la décélération; Mesure des chocs, c. à d. d'une variation brusque de l'accélération en ayant recours aux forces d'inertie avec conversion en valeurs électriques ou magnétiques
• G01C 19/56 - Dispositifs sensibles à la rotation utilisant des masses vibrantes, p.ex. capteurs vibratoires de vitesse angulaire basés sur les forces de Coriolis

Abrégé

The present invention relates to an obstacle detection method implemented by an obstacle detection system on-board an aircraft, the aircraft including at least one on-board camera having an associated field of view configured to acquire full-field digital images. The method comprises the steps of: (a)—reception (50) of at least one full-field digital image captured by said at least one on-board camera, b)—determination (54) of a spatial position of a zone of interest of predetermined size in said full-field digital image, and extraction (56) of said zone of interest from said full-field digital image, c)—implementation of an obstacle detection module (58) on said extracted zone of interest, implementing a neural network previously trained to detect and classify obstacles in images having said predetermined size, each obstacle detected being located in said zone of interest.

Classes IPC  ?

• G06V 20/17 - Scènes terrestres transmises par des avions ou des drones
• G06V 10/25 - Détermination d’une région d’intérêt [ROI] ou d’un volume d’intérêt [VOI]
• G06V 10/764 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant la classification, p.ex. des objets vidéo
• G06V 10/82 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant les réseaux neuronaux

Abrégé

A communication satellite configured to transmit an optical signal, through an optical transmission channel, in response to the reception of at least one modulated and encoded radiofrequency signal. The satellite comprises: a unit for applying soft demodulation to the at least one received radiofrequency signal, and providing N intermediate demodulated data frames B1-n, each frame B1-n comprising a set of digitized soft values; a unit for applying an error correction code to the frames B1-n, and providing N encoded intermediate demodulated data frames B2-n; a unit for interleaving the N frames B2-n, and providing M interleaved data frames I2-m; and a unit for applying, to each frame I2-m, an optical carrier modulation so as to form the optical signal.

Classes IPC  ?

• H04B 10/118 - Dispositions spécifiques à la transmission en espace libre, c. à d. dans l’air ou le vide spécialement adaptées aux communications par satellite
• H04B 7/185 - Stations spatiales ou aériennes
• H04L 1/00 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue

Abrégé

An avionics communication gateway including a module for acquiring at least one data message, each message being according to a communication protocol and including a header and a payload including a plurality of successive fields, a module for filtering each acquired message, validating the message if it complies with a set of filter criteria, and blocking it otherwise, and a module for transmitting, to a corresponding recipient, each validated message. The filter module includes a unit for generating a main table for each message, representing a tree of the fields of the payload of the message according to a set of levels related to the communication protocol, and a unit for calculating, for each message, a dictionary table and at least one auxiliary table from among first, second and third auxiliary tables, the filter module using the at least one auxiliary table for filtering the message.

Classes IPC  ?

• H04B 7/185 - Stations spatiales ou aériennes
• H04W 12/088 - Sécurité d'accès utilisant des filtres ou des pare-feu

Abrégé

An iris diaphragm having an optical axis, includes a fixed ring, a mobile ring designed to rotate about the optical axis with respect to the fixed ring and comprising a plurality n of guidance guideways, a plurality of n blades defining an elliptical diaphragm aperture having a major axis (a) and a minor axis (b), each blade being able to pivot with respect to the fixed ring about a respective axis and comprising a respective mobile pin able to move in one of the respective guidance guideways by bearing along the respective guidance guideway, a control ring designed to rotate about the optical axis with respect to the fixed ring and comprising a control guideway wherein one of the mobile pins, referred to as control pin, is able to move by bearing along the control guideway, a shape of each guidance guideway on which the respective mobile pin bears being designed so that a rotation of the control ring about the optical axis gives rise, via the control pin, to a rotation of the mobile ring and a movement of the mobile pins in the guidance guideways so as to modify an area of the elliptical aperture without modifying an orientation of the major axis and of the minor axis and without modifying a ratio of the major axis to the minor axis.

Classes IPC  ?

• G03B 9/06 - Plusieurs lames montées sur pivot et coopérant, p.ex. du type à iris

Abrégé

The present invention relates to a method for estimating an environmental footprint of a flight of an aircraft. The method is implemented by a decentralized electronic estimating system including at least a first entity, a second entity and a third entity, the second entity being distinct from the first entity and the third entity. The method includes receipt, by the second entity, from the first entity, at least one datum relative to the aircraft or its environment during the flight. The method also includes association, by the second entity, of a measurement uncertainty with each datum received by the second entity. The method further includes estimation, by the third entity, of an environmental indicator representative of the environmental footprint, on the basis of at least one datum and of the uncertainty associated with the at least one datum.

Classes IPC  ?

• G06Q 50/40 - Procédés d’affaires s’appliquant à l’industrie du transport (expédition G06Q 10/83)

Abrégé

A method for manufacturing a device including a diamond crystal, the method including making available a substrate, growing a crystalline diamond layer on the substrate, the layer having a crystal lattice, the layer including at least a first set of XV centers in the crystal lattice, each XV center having a quantification axis, a main direction being defined for the first set, the quantification axes of the XV centers of the first set being parallel to the main direction, the normal direction being distinct from the main direction of the first set, removing a first part of the diamond layer in order to reveal a first face perpendicular to the main direction of the first set, and removing of a second part of the diamond layer in order to reveal a second face perpendicular to the first face.

Classes IPC  ?

• C30B 29/04 - Diamant
• C30B 25/02 - Croissance d'une couche épitaxiale
• C30B 33/00 - Post-traitement des monocristaux ou des matériaux polycristallins homogènes de structure déterminée

Abrégé

A method for generating a secure secret key, includes the following steps: A. receiving, in a communication station referred to as the transmitting station, a first secret key by way of a quantum encryption channel via satellite, the first secret key also being transmitted to at least one other communication station by way of the quantum encryption channel; B. generating, in the transmitting station, a second secret key using a trusted random number generator; C. generating an encrypted secret key using the first secret key and the second secret key by the one-time pad method; D. transmitting the encrypted secret key from the transmitting station to the one or more other communication stations.

Classes IPC  ?

• H04L 9/08 - Répartition de clés
• H04L 9/14 - Dispositions pour les communications secrètes ou protégées; Protocoles réseaux de sécurité utilisant plusieurs clés ou algorithmes

Abrégé

An iris diaphragm having an optical axis, includes a fixed ring, a plurality of [Formula (I)] blades defining a diaphragm aperture of predetermined shape, the blades being able to move in a plane perpendicular to the optical axis with respect to the fixed ring, each blade comprising a control pin, a control ring designed to rotate about the optical axis with respect to the fixed ring and comprising m control guideways, each control pin being able to move along a respective one of the control guideways by bearing along the respective control guideway, a rotation of the control ring about the optical axis giving rise, via the movement of the control pins in the control guideways, to the movement of the blades with respect to the fixed ring so as to modify the area of the aperture while maintaining the predetermined aperture shape, without causing a rotation of the predetermined shape with respect to the fixed ring.

Classes IPC  ?

• G02B 5/00 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES Éléments optiques autres que les lentilles

Abrégé

An optical signal generation device for quantum key exchange, includes a photon source generating at least one pulse stream, an ADC transducer converting the photons of a pulse stream into a random binary string, a quantum state modulator putting the photons of the pulses into a number and quantum state defined by a control word in order to generate the optical signal from one of the pulse streams, digital computing means: generating at least one random sequence having a given probability distribution and rate, based on the random binary string, generating the control word in accordance with the key exchange protocol based on said at least one random sequence. A payload for a satellite, comprising such an optical signal generation device is also provided.

Classes IPC  ?

• H04B 10/70 - Communications quantiques photoniques
• H04B 10/118 - Dispositions spécifiques à la transmission en espace libre, c. à d. dans l’air ou le vide spécialement adaptées aux communications par satellite

Abrégé

A method for managing speed constraints of a flight plan of an aircraft, the method includes the following steps: identifying a current flight phase, determining CAS speed profile, the speed profile establishing a behavior of the aircraft with respect to a speed setpoint, determining a Mach speed profile, the Mach speed profile establishing a behavior of the aircraft with respect to a Mach setpoint, the Mach setpoint being a speed setpoint transcribed into an equivalent Mach number, determining a Cross-Over altitude, the Cross-Over altitude being an altitude of transition from an automatic control of the aircraft according to the CAS speed profile to an automatic control according to the Mach speed profile, determining an end-of-applicability criterion of the speed profile and of the Mach speed profile.

Classes IPC  ?

• G08G 5/00 - Systèmes de commande du trafic aérien

Abrégé

A detection system includes a phased array antenna having unitary radiating elements, the system being suitable for, in each cycle, successively directing, by way of the successive application of a first and a second determined phase law to the electrical signals for supplying power to the array antenna, the antenna radiation towards a first target area (Z1), then a second target area (Z2), which is separate from the first target area (Z1), and determining an image of each target area (Z1) on the basis of the echoes received from each of the first and second target areas.

Classes IPC  ?

• G01S 13/90 - Radar ou systèmes analogues, spécialement adaptés pour des applications spécifiques pour la cartographie ou la représentation utilisant des techniques d'antenne synthétique

Abrégé

Avionics system includes a bootstrap package including system partitions, and a primary configuration table, of a first type with hardware resource configuration values, a boot automaton launching the bootstrap package, at least one secondary configuration table of a second type with configuration values usable by a set of partitions, tertiary system configuration tables for the set of partitions, of a third type with configuration values used by a respective partition, application partitions, each including an avionics application and a tertiary configuration table, of the third type and containing configuration values of resources used by the respective application partition. The boot automaton checks whether an additional configuration file is present, and launches the additional configuration file including at least one configuration table of the first, second or third type, same being used instead of a table of the same type among the primary, secondary, tertiary system and tertiary application tables.

Classes IPC  ?

• G06F 9/4401 - Amorçage

Abrégé

A computer platform on board an aircraft, that executes a set of application partitions, hosts an operating system and includes: resources; a boot package including a kernel, at least one resource driver, a set of system partitions and at least one resource configuration table, each system partition including at least one operating system service; and a boot controller able to be executed first, following power-up of the platform and configured to launch the boot package. The boot controller verifies whether an additional configuration file is present in the storage memory, and launches, before the boot package, the additional configuration file including at least one resource configuration table, then used instead of a respective table of the same type from among the at least one table of the boot package.

Classes IPC  ?

• G06F 9/445 - Chargement ou démarrage de programme
• G06F 21/64 - Protection de l’intégrité des données, p.ex. par sommes de contrôle, certificats ou signatures

Abrégé

An electronic system includes an electronic device having a stack of layers, the stack including a first electrode, a subassembly with electrically controllable remanent states, a two-dimensional electron gas, a magnetic subassembly comprising at least one magnetic layer, and a second electrode having two first contacts and a second contact. The system also includes a writing device writing remanent states by applying an electric field between the two electrodes, and a Hall-effect reading device reading the remanent state by applying a current between the two first contacts and by measuring the voltage between the second contact and a reference potential.

Classes IPC  ?

• H10N 52/00 - Dispositifs à effet Hall
• G11C 11/16 - Mémoires numériques caractérisées par l'utilisation d'éléments d'emmagasinage électriques ou magnétiques particuliers; Eléments d'emmagasinage correspondants utilisant des éléments magnétiques utilisant des éléments dans lesquels l'effet d'emmagasinage est basé sur l'effet de spin
• H10N 50/10 - Dispositifs magnéto-résistifs
• H10N 50/20 - Dispositifs à courant commandé à polarisation de spin

Abrégé

A device for protecting an electronic equipment item, configured to limit the electric current between an electric power generator and an electronic equipment item consuming electric power. The device includes a control circuit connected to a power circuit, the power circuit including power semiconductors, the power circuit being able to be connected in series between the electric power generator and the electronic equipment item. The control circuit includes event detection modules, a current setpoint variation module, and a control module for controlling the power semiconductors, configured to supply a control signal for limiting the electric current in the power circuit as a function of the current limitation setpoint signal.

Classes IPC  ?

• H02H 9/02 - Circuits de protection de sécurité pour limiter l'excès de courant ou de tension sans déconnexion sensibles à un excès de courant
• B64D 47/00 - Equipements non prévus ailleurs

Abrégé

The present invention relates to an electronic device comprising: a first electrode comprising a contact, a ferroelectric subassembly having a ferroelectric polarization, a spin polarization subassembly which spin-polarizes an incident current and comprises a layer of ferromagnetic or ferrimagnetic material, an interfacing subassembly which is arranged between the two subassemblies and converts the spin current into a charge current, the ferroelectric subassembly and the interfacing subassembly having a contact, and a second electrode which comprises two contacts and delimits the polarization subassembly, the contact of the first electrode changing the state of polarization by applying a potential difference between this contact and another contact.

Classes IPC  ?

• H10N 50/20 - Dispositifs à courant commandé à polarisation de spin
• G11C 11/16 - Mémoires numériques caractérisées par l'utilisation d'éléments d'emmagasinage électriques ou magnétiques particuliers; Eléments d'emmagasinage correspondants utilisant des éléments magnétiques utilisant des éléments dans lesquels l'effet d'emmagasinage est basé sur l'effet de spin
• H01L 29/66 - Types de dispositifs semi-conducteurs
• H10N 50/85 - Matériaux actifs magnétiques

Abrégé

A method for checking an estimated location of a mobile machine receiving geopositioning signals from satellites, k=1 to s; a database storing the geographical coordinates of virtual beacons and the heading of the path segment on which the virtual beacon is located; a location indicating a virtual beacon, estimated to be on the same path segment as the machine, wherein for k=1 to s: the delay, ΔτSk(t,B1), is computed between the geopositioning signal received from and the theoretical geopositioning signal; values hdg and RxB1 are estimated that respect: A method for checking an estimated location of a mobile machine receiving geopositioning signals from satellites, k=1 to s; a database storing the geographical coordinates of virtual beacons and the heading of the path segment on which the virtual beacon is located; a location indicating a virtual beacon, estimated to be on the same path segment as the machine, wherein for k=1 to s: the delay, ΔτSk(t,B1), is computed between the geopositioning signal received from and the theoretical geopositioning signal; values hdg and RxB1 are estimated that respect: Δ ⁢ τ S 1 ( t , B ⁢ 1 ) = 1 c ⁢ ( cos ⁡ ( el 1 ) ) - 1 ⁢ cos ⁡ ( az 1 ′ ) ⁢ RxB ⁢ 1 + ε 1 ⋮ Δ ⁢ τ S s ( t , B ⁢ 1 ) = 1 c ⁢ ( cos ⁡ ( el s ) ) - 1 ⁢ cos ⁡ ( az s ′ ) ⁢ RxB ⁢ 1 + ε s A method for checking an estimated location of a mobile machine receiving geopositioning signals from satellites, k=1 to s; a database storing the geographical coordinates of virtual beacons and the heading of the path segment on which the virtual beacon is located; a location indicating a virtual beacon, estimated to be on the same path segment as the machine, wherein for k=1 to s: the delay, ΔτSk(t,B1), is computed between the geopositioning signal received from and the theoretical geopositioning signal; values hdg and RxB1 are estimated that respect: Δ ⁢ τ S 1 ( t , B ⁢ 1 ) = 1 c ⁢ ( cos ⁡ ( el 1 ) ) - 1 ⁢ cos ⁡ ( az 1 ′ ) ⁢ RxB ⁢ 1 + ε 1 ⋮ Δ ⁢ τ S s ( t , B ⁢ 1 ) = 1 c ⁢ ( cos ⁡ ( el s ) ) - 1 ⁢ cos ⁡ ( az s ′ ) ⁢ RxB ⁢ 1 + ε s the location being identified as unreliable depending on comparison of the estimated hdg with the stored value of the heading of the path segment of the beacon.

Classes IPC  ?

• G01S 19/07 - Systèmes de positionnement par satellite à radiophares émettant des messages horodatés, p.ex. GPS [Système de positionnement global], GLONASS [Système global de navigation par satellite] ou GALILEO Éléments coopérants; Interaction ou communication entre les différents éléments coopérants ou entre les éléments coopérants et les récepteurs fournissant des données pour corriger les données de positionnement mesurées, p.ex. DGPS [GPS différentiel] ou corrections ionosphériques
• G01S 19/10 - Systèmes de positionnement par satellite à radiophares émettant des messages horodatés, p.ex. GPS [Système de positionnement global], GLONASS [Système global de navigation par satellite] ou GALILEO Éléments coopérants; Interaction ou communication entre les différents éléments coopérants ou entre les éléments coopérants et les récepteurs fournissant des signaux de positionnement supplémentaires dédiés

Abrégé

A method for encoding a digital signature of a neural network, implemented by an electronic device, the neural network being stored within a data structure including blocks of parameters. The method includes, for a current block of parameters including at least M parameters representing real numbers: an operation of acquiring a signature binary image from the digital signature including a set of bits extracted from parameters of the current block of parameters, and an operation of combining the signature binary image with a reference binary image delivering a coded binary image.

Classes IPC  ?

• G06F 21/44 - Authentification de programme ou de dispositif
• G06T 1/00 - Traitement de données d'image, d'application générale

Abrégé

A method of digitally watermarking a neural network, implemented by an electronic device, the neural network being stored within a data structure including blocks of parameters. The method includes, for a current parameter block consisting of at least N parameters representing real numbers, obtaining a message including N bits, at least N iterations of a parameter modification operation within the current block, including obtaining a current parameter, from among the at least N parameters of the current parameter block, and updating the value of a predetermined index bit of the current parameter as a function of a bit in the message.

Classes IPC  ?

• G06F 21/16 - Traçabilité de programme ou de contenu, p.ex. par filigranage

Abrégé

An optoelectronic device includes at least one pixel comprising: a plurality of optical resonators, each optical resonator comprising a photodetecting structure confined between a first reflective metal layer and a second metal layer; and a connection microstructure that is arranged on a support made of dielectric material and is configured to electrically interconnect the second metal layers of the optical resonators belonging to the same pixel; and a readout integrated circuit arranged on a substrate and assembled with the pixel; the readout circuit comprising a buried readout electrode associated with the pixel and a metal or dielectric outer layer. The assembly comprising at least the first metal layer and the outer layer of the readout integrated circuit is called a planar assembly structure. The second metal layers of the resonators of a pixel are connected to the associated readout electrode by way of a metal via connected to the connection microstructure and passing through the support.

Classes IPC  ?

• H01L 27/146 - Structures de capteurs d'images

Abrégé

A method for learning a prediction algorithm, the learning being implemented by a machine learning technique, the method including reception of a current set of learning data, reception of an invariance property of the prediction of the algorithm with respect to the inputs according to an initial symmetry group endowed with an initial probability law, determination of a subgroup of the initial group endowed with a subgroup probability law and intended to apply transformations to the current set, according to an optimization technique using the current set, the initial group and the initial law under an optimization constraint deduced from predetermined constraints, generation of data using the determined subgroup, the law of the subgroup and the whole current set, and implementation of a learning of the algorithm using the generated data.

Classes IPC  ?

• G06F 17/11 - Opérations mathématiques complexes pour la résolution d'équations

Abrégé

A device for coupling optical fibers, includes a first coupling-inhibited hollow-core optical fiber comprising a first microstructured cladding comprising a plurality of first confining tubular features distributed in a ring and encircling, at least partially, a first core so as to confine at least radiation at a wavelength λop to the first core, a second coupling-inhibited hollow-core optical fiber comprising a second microstructured cladding comprising a plurality of second confining tubular features distributed in a ring and encircling, at least partially, a second core so as to confine the light radiation to the second core, a coupling element arranged between the first and second cores, the coupling element comprising at least one coupling tubular feature comprised at least partially in the first microstructured cladding and/or the second microstructured cladding and having a wall thickness tcp called the coupling thickness and a material index ncp called the coupling index, an arrangement of the coupling element, the coupling thickness tcp and the coupling index ncp being configured so as to create a leakage channel at the wavelength λop allowing the radiation guided by the first optical fiber to be coupled to the second optical fiber and/or the radiation guided by the second optical fiber to be coupled to the first optical fiber.

Classes IPC  ?

• G02B 6/28 - Moyens de couplage optique ayant des bus de données, c. à d. plusieurs guides d'ondes interconnectés et assurant un système bidirectionnel par nature en mélangeant et divisant les signaux
• G02B 6/02 - Fibres optiques avec revêtement

Abrégé

An electronic portion of a CRPA antenna of an anti-jamming device for a GNSS receiver, including M elementary signal inputs, for each input, a bandpass filter bank which is configured to break down each elementary signal received by this input at a frequency Fe, into P sub-bands to obtain P sub-sampled signals at a frequency Fe/P, a calculational component which is configured to apply in parallel anti-jamming processing at the frequency Fe/P to the sub-sampled signals, to obtain a cleaned sub-sampled signal, and a summation component which is configured to receive all the cleaned sub-sampled signals and to form, from these sub-sampled signals a resulting corresponding cleaned signal at the frequency Fe.

Classes IPC  ?

• H04K 3/00 - Brouillage de la communication; Contre-mesures

Abrégé

A flight management system for an aircraft, includes a critical first avionics module for trajectory calculation, i.e. a module the integrity level and availability level of which are specified by regulatory standards in force, delivering as output a safe trajectory, based on a flight plan; a second module for trajectory calculation that is less critical than the critical first module, i.e. a module the integrity level and availability level of which are lower than those of the first module, delivering as output an improved trajectory that is less safe than the trajectory delivered by the critical first avionics module, based on a flight plan; a critical avionics module for trajectory verification, configured to validate or invalidate the safety of the less safe improved trajectory; and a critical avionics module for decision-making configured to select a trajectory from the safe trajectory and the less safe trajectory.

Classes IPC  ?

• G08G 5/00 - Systèmes de commande du trafic aérien
• G08G 5/04 - Systèmes anticollision

Produits et services

(1) Services de télécommunications; services de télécommunications par fibres optiques; services de fourniture d'accès à internet pour des utilisateurs [fournisseurs de services]; fourniture d'accès et de location d'accès à une base de données informatique; transmission de communications cryptées; fourniture et location d'installations et d'équipement de télécommunication, tous les services précités étant dans les domaines de la défense, de l'aérospatiale, de l'aéronautique, de la sécurité, du transport terrestre, aérien et naval, de la banque et de la finance. (2) Impression, et développement photographique et cinématographique. (3) Formation; édition, tous les services précités étant dans les domaines de la défense, de l'aérospatiale, de l'aéronautique, de la sécurité, du transport terrestre, aérien et naval, de la banque de la finance et de l'informatique. (4) Services scientifiques, technologiques et de recherches; services d'analyses industrielles, de recherches industrielles et de dessin industriel; services de contrôle de qualité et d'authentification; conception et développement d'ordinateurs et de logiciels; conseil en intelligence artificielle; recherche dans le domaine de l'intelligence artificielle; plates-formes pour intelligence artificielle en tant que logiciel-service [SaaS]; fourniture de programmes informatiques d'intelligence artificielle sur des réseaux de données; services des technologies de l'information; services scientifiques et technologiques; tests, authentification et contrôle de la qualité; services de stockage électronique de données électroniques, service de conception, développement, mise à jour, installation, et maintenance de bases de données; services d'assistance technique en matière de matériel informatique et de logiciels; services de cryptage, décryptage et authentification d'informations, de messages et de données; surveillance de systèmes informatiques pour la détection d'accès non autorisés ou d'atteintes à la protection de données; consultation en matière de sécurité informatique; analyse de la menace sur la sécurité informatique pour la protection des données; installation de logiciel de contrôle d'accès en tant que service (ACaaS); hébergement de données; hébergement de blogues; plateforme informatique en tant que service [PaaS]; développement de plateformes informatiques, tous les services précités étant dans les domaines de la défense, de l'aérospatiale, de l'aéronautique, de la sécurité, du transport terrestre, aérien et naval, de la banque et de la finance et de l'informatique.

Produits et services

Telecommunication services; fiber optic telecommunication services; providing user access to the Internet [service providers]; provision of access and rental of access time to a computer database; transmission of encrypted communications; provision and rental of telecommunication facilities and equipment, all the aforementioned services in the fields of defense, aerospace, aeronautics, security, land, air and naval transportation, banking and finance. Printing, and photographic and cinematographic development. Training; editing, all the aforementioned services in the fields of defense, aerospace, aeronautics, security, land, air and naval transportation, banking, finance and computing. Scientific, technological and research services; industrial analysis, industrial research and industrial design services; quality control and authentication services; design and development of computers and software; advice with respect to artificial intelligence; research in the field of artificial intelligence; platforms for artificial intelligence as SaaS [Software as a Service]; providing artificial-intelligence computer programs on data networks; information technology services; scientific and technological services; quality control, authentication and testing; electronic storage of electronic data, design, development, updating, installation, and maintenance of databases; technical support services with respect to computer hardware and software; encryption, decryption and authentication services for information, messages and data; monitoring of computer systems for the detection of unauthorized access or data protection breaches; consultation with respect to computer security; analyzing computer security threats for data protection; installing access control as a service (ACaaS) software; data hosting; hosting weblogs [blogs]; computer Platform as a Service [PaaS]; developing computer platforms, all the aforementioned services being in the fields of defense, aerospace, aeronautics, security, land, air and naval transportation, banking and finance and computing.

Abrégé

A method for automatically generating a sequence of Nmax instructions in assembly language, the sequence being executable error-free by a multi-core processor, the method comprising steps of: initializing registers of the processor, then selecting a first instruction of the predetermined sequence, optionally at random; and selecting an N+1th instruction among an instruction to read from a memory connected to the cores of the processor by a memory bus, an instruction to write to said memory, and a local instruction using only the registers of the processors, according to rules and to priorities between the rules, the rules using respective differences between statistical-metric values of statistical metrics of a memory access pattern of the sequence of N previous instructions having statistical-metric values, and setpoint values.

Classes IPC  ?

• G06F 8/30 - Création ou génération de code source

Abrégé

An aerodynamic measurement probe intended to measure a local angle of attack of an airflow circulating along the fuselage of an aircraft, the support comprising a circular cover with a central opening which is passed through by the mobile shaft, the outer surface of the cover comprising a frustoconical face exhibiting symmetry of revolution about the longitudinal axis, the cover comprising polyether ether ketone reinforced with glass or carbon fibers, with a thermal conductivity of less than 3 W.m−1·K−1 and being provided with metallic inserts at its fastenings, at least one metallic electrical continuity insert being configured to establish an electrical connection between the inner part of the probe and an interface of the metallic insert disposed under the lower periphery of that part of the metallic insert which is furthest away from the shaft.

Classes IPC  ?

• G01P 13/02 - Indication de la direction uniquement, p.ex. par une girouette

Abrégé

This angle-of-attack sensor, in particular for an aircraft, of the type including a sensor body (11) on which a wind vane (12) is mounted movable in rotation by a flow, is characterized in that the wind vane (12) includes at least one deflector (13, 14) extending from the leading edge of this wind vane over at least part of the intrados and/or extrados thereof.

Classes IPC  ?

• B64D 43/02 - Aménagements ou adaptations des instruments pour indiquer la vitesse des aéronefs ou les conditions de décrochage
• G01P 13/02 - Indication de la direction uniquement, p.ex. par une girouette

Abrégé

A method for fabricating a device includes the following steps: fabricating at least one first microstructure and one second microstructure on the substrate, fabricating a connection microstructure making it possible to electrically connect at least the first microstructure to the second microstructure by fabricating a support made of dielectric material by solidifying, by means of a lithography method, a part of a deposited resin layer and by depositing a first metallic layer on at least a part of the support comprising at least a part linking the first microstructure and the second microstructure.

Classes IPC  ?

• H01L 31/02 - Dispositifs à semi-conducteurs sensibles aux rayons infrarouges, à la lumière, au rayonnement électromagnétique d'ondes plus courtes, ou au rayonnement corpusculaire, et spécialement adaptés, soit comme convertisseurs de l'énergie dudit rayonnement e; Procédés ou appareils spécialement adaptés à la fabrication ou au traitement de ces dispositifs ou de leurs parties constitutives; Leurs détails - Détails
• H01L 31/18 - Procédés ou appareils spécialement adaptés à la fabrication ou au traitement de ces dispositifs ou de leurs parties constitutives

Abrégé

A method for communication between an air traffic control system and a communication module, the communication method includes a step of determining environmental optimization time slots based on the air traffic absorption capacities of the various flight information regions, the environmental optimization time slots at least partially covering one or more flight information regions, each environmental optimization time slot having an associated efficiency level; a step of negotiation, between the pilot via the communication module and the air traffic control system, to negotiate changes to the flight plan on the basis of the environmental optimization time slots and the environmental optimization levels of the environmental optimization time slots.

Classes IPC  ?

• G08G 5/00 - Systèmes de commande du trafic aérien

Abrégé

A neuromorphic circuit implementing a spiking neural network and including bidirectional synapses made by a set of memristors arranged in an array, neurons firing spikes at a variable rate and connected to neurons via a synapse, and a neural network training module including, for at least one bidirectional synapse, an estimation unit obtaining an estimation of the time derivative of the spike rate of each neuron, an interconnection having at least two positions between the synapse and each neuron, and a controller sending a control signal to the interconnection after a spike, the signal changing the position of the interconnection, so as to connect the estimation unit and the synapse.

Classes IPC  ?

• G06N 3/08 - Méthodes d'apprentissage
• G06N 3/063 - Réalisation physique, c. à d. mise en œuvre matérielle de réseaux neuronaux, de neurones ou de parties de neurone utilisant des moyens électroniques

Abrégé

A device and a method implemented by computer, allowing the behavior and the actions of an operator interacting with a complex system to be predicted, based on the observation of his/her behavior in real time and on the instantiation of models of human behavior which are constructed by learning from past data collected for a plurality of operators, the models of human behavior having been learnt by the application of artificial intelligence techniques to cognitive models and to procedural models taking into account parameters of human factors of influence.

Classes IPC  ?

• G06N 5/022 - Ingénierie de la connaissance; Acquisition de la connaissance

Abrégé

A pressure measurement probe for an aircraft, includes a pressure sensor board comprising an electronic board equipped with a pressure sensor provided with an air inlet, the electronic board further comprising at least four fixing points distributed on a circle at regular angular intervals and configured to allow the sensor board to be fixed in the pressure measurement probe in such a way as to have, when the aircraft is on the ground, a pressure sensor air inlet that is directed downward and an angular offset less than or equal to 45° between the axis of the air inlet of the pressure sensor and the vertical, irrespective of the position of the probe on the aircraft.

Classes IPC  ?

• G01P 5/14 - Mesure de la vitesse des fluides, p.ex. d'un courant atmosphérique; Mesure de la vitesse de corps, p.ex. navires, aéronefs, par rapport à des fluides en mesurant les différences de pression dans le fluide
• B64D 45/00 - Indicateurs ou dispositifs de protection d'aéronefs, non prévus ailleurs

Abrégé

Method for compressing a digital terrain model file including a tile including a matrix of cells, each cell including an elevation value for a geographical point of the terrain, by representing the tile in the form of an initial tree having a plurality of depth levels, each terminal node of the initial tree representing a zone of the tile corresponding to a single cell, pruning the initial tree so as to obtain a pruned tree, encoding the elevation value associated with each of the terminal nodes of the pruned tree to obtain a differential elevation value starting from a reference elevation, and serializing the pruned tree resulting from the encoding to obtain a compressed file indicating the reference elevation, followed by a plurality of sequences, each sequence including a header and a load, indicative of a depth level and a differential elevation value of a terminal node, respectively.

Classes IPC  ?

• G06T 9/00 - Codage d'image
• G06T 9/40 - Codage sous forme arborescente, p.ex. à quatre branches, à huit branches

Abrégé

A probe for measuring static or parietal pressure includes a pressure sensor module, a mounting plate equipped with air inlets which is intended to be mounted on the skin of an aircraft, and a shut-off means equipped with shut-off fingers which are configured to plug the air inlets of the mounting plate, and an actuator, controlled by a control module, configured to move the shut-off means in a translational movement so as to plug or unplug the air inlets of the mounting plate by the shut-off fingers.

Classes IPC  ?

• G01L 19/14 - Boîtiers
• B64D 43/02 - Aménagements ou adaptations des instruments pour indiquer la vitesse des aéronefs ou les conditions de décrochage
• G01L 19/00 - MESURE DES FORCES, DES CONTRAINTES, DES COUPLES, DU TRAVAIL, DE LA PUISSANCE MÉCANIQUE, DU RENDEMENT MÉCANIQUE OU DE LA PRESSION DES FLUIDES - Détails ou accessoires des appareils pour la mesure de la pression permanente ou quasi permanente d'un milieu fluent dans la mesure où ces détails ou accessoires ne sont pas particuliers à des types particuliers de manomètres
• G01L 19/06 - Moyens pour empêcher la surcharge ou l'influence délétère du milieu à mesurer sur le dispositif de mesure ou vice versa

Abrégé

An aeronautical probe that presents a generally profiled shape, is provided with a fixing base and has undulations on at least part of its leading edge.

Classes IPC  ?

• G01P 5/14 - Mesure de la vitesse des fluides, p.ex. d'un courant atmosphérique; Mesure de la vitesse de corps, p.ex. navires, aéronefs, par rapport à des fluides en mesurant les différences de pression dans le fluide

Abrégé

An antenna system includes an antenna and a passive device for angular deflection of a main radiation lobe of the antenna, characterized in that the device consists of a lens, said lens having a constant thickness and having a progressive relative permittivity between an inner edge of the lens located on the side of the geometric center of the antenna and an outer edge of the lens located on the side of a periphery of the antenna, the profile of the relative permittivity as a function of distance to the geometrical center of the antenna being adapted such that the lens deflects the main radiation lobe of the antenna by a predefined deflection angle over at least a portion of an operating frequency band of the antenna.

Classes IPC  ?

• H01Q 15/08 - Dispositifs de réfraction ou diffraction, p.ex. lentille, prisme constitués par une matière diélectrique solide
• H01Q 1/42 - Enveloppes non intimement mécaniquement associées avec les éléments rayonnants, p.ex. radome

Abrégé

An aerodynamic measurement probe intended to measure a local angle of attack of an air stream flowing along the fuselage of an aircraft, includes a support and a shaft that is able to rotate about a longitudinal axis with respect to the support, the support and the shaft being configured to form between them a gap, passing around an annular tab at the end of the shaft in the support, making it possible to maintain a functional clearance to allow one end of the shaft to pivot freely in the support, and communicating with an impurity discharge circuit, the gap comprising an inner annular groove about the axis of rotation, made in the support, and opening out away from the axis directly onto the end part of the annular tab, the profile of the inner groove being rounded.

Classes IPC  ?

• G01P 13/02 - Indication de la direction uniquement, p.ex. par une girouette

Abrégé

A method for fabricating an optoelectronic component includes at least one photodiode, the steps of the method making it possible to move the electric carrier collection field to the layer least sensitive to radiation, thus reducing the influence of irradiation on the dark current.

Classes IPC  ?

• H01L 27/146 - Structures de capteurs d'images

Abrégé

A method for monitoring avionics software application(s) executed by an avionics platform, on-board an aircraft, including a multi-core processor and hosting an operating system, is implemented by an electronic monitoring device and includes, for each software application running, a monitoring phase including acquisition at least one characteristic variable value representative of a use of the platform, each acquired value being associated with the respective software application, comparison of each acquired value with a respective threshold corresponding to the characteristic variable, and stopping the execution of the respective software application if at least one acquired value is higher than the respective threshold.

Classes IPC  ?

• G06F 11/36 - Prévention d'erreurs en effectuant des tests ou par débogage de logiciel

Abrégé

A rat-race balun includes a transmission line loop and 4 input-output ports P1, P2, P3, P4 connected to the transmission line loop, the respective transmission line section between the adjacent ports P1 and P4 is of electrical length 2θ2, of impedance Z3 and is a line section loaded by a capacitor of capacitance C2; where θ2<135 and the following equalities are satisfied: A rat-race balun includes a transmission line loop and 4 input-output ports P1, P2, P3, P4 connected to the transmission line loop, the respective transmission line section between the adjacent ports P1 and P4 is of electrical length 2θ2, of impedance Z3 and is a line section loaded by a capacitor of capacitance C2; where θ2<135 and the following equalities are satisfied: C ⁢ 2 = - 2 ⁢ tan ⁡ ( θ 2 ) ω ⁢ Z P ⁢ 1 ⁢ P ⁢ 4 ⁢ tan ⁡ ( 2 ⁢ θ 2 ) and ⁢ Z 3 = - Z P ⁢ 1 ⁢ P ⁢ 4 tan ⁡ ( θ 2 ) w being equal to 2πf, with f the operating frequency, and ZP1P4 being the impedance of the unloaded transmission line section of physical length 3λ/4 equivalent to the loaded line section.

Classes IPC  ?

• H01P 1/00 - Dispositifs auxiliaires
• H01P 3/08 - Microrubans; Triplaques

Abrégé

A reception chain allowing the reception of IFF and ADS-B signals while rejecting at least one intermediate frequency band, includes a reception antenna, an analog part with: a two-band filtering device passing around the frequency bands of the IFF and ADS-B signals while rejecting the intermediate frequency band, a low-noise amplifier, a mixer configured to transpose the IFF and ADS-B signals to lower frequencies, an analog-digital converter, a digital part configured to duplicate the digitized signal, and to process the duplicated signals respectively on a first, IFF, path and a second, ADS-B, path each comprising a filtering device, a frequency transposition device, and signal processing means.

Classes IPC  ?

• H04B 1/10 - Dispositifs associés au récepteur pour limiter ou supprimer le bruit et les interférences
• H04B 1/00 - TRANSMISSION - Détails des systèmes de transmission non caractérisés par le milieu utilisé pour la transmission

Abrégé

A rat-race balun includes a transmission line loop and 4 input-output ports P1, P2, P3, P4 connected to the transmission line loop, the balun being designed to receive a first signal on the port P1, and to divide the first signal into a second signal that is delivered to the port P2 and a third signal that is delivered to the port P4, the second signal and the third signal being in phase opposition with one another, the balun wherein the balun is kidney-shaped and the ports P2, P4 each comprise at least a first section connected to the transmission line, the first section of the port P2 being parallel to the first section of the port P4.

Classes IPC  ?

• H01P 5/22 - Jonctions en anneau hybride
• H01P 5/10 - Dispositifs de couplage du type guide d'ondes destinés au couplage de lignes ou de dispositifs de différentes sortes destinés au couplage de lignes ou de dispositifs équilibrés avec des lignes ou des dispositifs déséquilibrés

Abrégé

A dual-band analogue filter that is passing for IFF signals and ADS-B signals in a first and a second frequency band, and to reject signals received outside these bands, implemented using multi-planar technology, and comprising, in succession: a layer comprising an input port and an output port, a layer comprising a ground plane having openings facing the input port and the output port, a layer comprising N band-pass resonators, a layer comprising N band-stop resonators, arranged such that: the band-pass resonators are connected in pairs by coupling, the first and the last band-pass resonator are connected to the input port and the output port by electromagnetic coupling, each band-pass resonator is connected to a band-stop resonator by electromagnetic coupling.

Classes IPC  ?

• H04B 1/00 - TRANSMISSION - Détails des systèmes de transmission non caractérisés par le milieu utilisé pour la transmission
• H01P 1/203 - Filtres triplaque

Abrégé

An acceleration-measuring sensor assembly includes an accelerometer subassembly with three measurement axes, mounted in a housing equipped with securing elements, and configured to determine an acceleration along a principal axis A, the assembly comprising: a single-axis principal accelerometer with a seismic mass moving in a straight line along a principal axis A, measuring acceleration along the principal axis A which is misaligned with respect to a reference axis Y by at most 50 mrad, a secondary accelerometer having at least two measurement axes and measuring respectively along two axes X and Z which with the reference axis Y form a direct orthonormal trihedron (O, X, Y, Z), the measurement precision of the two-axis accelerometer along each of its axes being at least ten times inferior to the measurement precision of the single-axis accelerometer, and an electronic processing unit configured to calculate a compensated acceleration S.

Classes IPC  ?

• G01P 15/18 - Mesure de l'accélération; Mesure de la décélération; Mesure des chocs, c. à d. d'une variation brusque de l'accélération dans plusieurs dimensions
• G01P 15/08 - Mesure de l'accélération; Mesure de la décélération; Mesure des chocs, c. à d. d'une variation brusque de l'accélération en ayant recours aux forces d'inertie avec conversion en valeurs électriques ou magnétiques

Abrégé

A device for securing a file system of a remote stand-alone system using an operating system associated with the file system having a double partition for A/B updates, the remote stand-alone system being updated by atomic update, and further including a secure boot tool, the device for securing being configured for signing the file system relying on an asymmetric two-key cryptography including a public key and a private key, the public key being integrated into the kernel of the operating system, and the lifetime of the private key being limited, the two public and private keys being regenerated by the device for securing each time a new atomic update of the remote stand-alone system is produced.

Classes IPC  ?

• H04L 9/08 - Répartition de clés
• G06F 21/57 - Certification ou préservation de plates-formes informatiques fiables, p.ex. démarrages ou arrêts sécurisés, suivis de version, contrôles de logiciel système, mises à jour sécurisées ou évaluation de vulnérabilité
• G06F 21/62 - Protection de l’accès à des données via une plate-forme, p.ex. par clés ou règles de contrôle de l’accès

Abrégé

An edge computation device on board an aircraft is configured for communicating with one or a plurality of onboard electronic devices having certified operation, and with at least one remote computation system. Same includes local computational resources, and is configured for implementing a management module for a plurality of software applications suitable for providing at least one control parameter and/or receiving at least one datum from at least one onboard electronic device, a module for activating the execution of at least one of the stored software applications, a management module for an execution stack, configured for determining, for each software application to be executed, an allocation of local computation resources and, where appropriate, for executing locally a first part of the application, and for requesting remote execution, by means of the remote computation system, of a second part of the application to be executed.

Classes IPC  ?

• G06F 9/50 - Allocation de ressources, p.ex. de l'unité centrale de traitement [UCT]

Abrégé

A supervision device configured for communicating with a computation device onboard an aircraft, wherein the onboard edge device is configured for executing software applications related with one or a plurality of onboard electronic devices with certified operation, the supervision device comprising a human-machine interface and being configured for receiving, from the edge computation device, observability signals comprising data relating to local computing resources of the onboard edge computation device and information relating to the execution of at least one of the software applications, the supervision device including at least one computing processor configured for computing a state of operation of the edge computation device and a state of execution of the at least one software application from the received observability signals and for displaying the state of operation and the state of execution on the human-machine interface.

Classes IPC  ?

• G05B 19/4155 - Commande numérique (CN), c.à d. machines fonctionnant automatiquement, en particulier machines-outils, p.ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'u caractérisée par le déroulement du programme, c.à d. le déroulement d'un programme de pièce ou le déroulement d'une fonction machine, p.ex. choix d'un programme

Abrégé

A wide-angle impedance-matching device for a radiating-element array antenna includes a transmission screen having a first surface intended to be positioned facing the radiating-element array parallel to the radiating aperture of the antenna and being configured to match the impedance of the antenna for an H-plane scan, and a set of metal pins placed orthogonally, on at least one surface of the transmission screen, at the intersection of at least some of the respective anti-symmetry planes of the electric field radiated by the antenna for an H-plane scan, for two linear polarizations in two orthogonal directions, the set of metal pins being configured to match the impedance of the antenna for an E-plane scan.

Classes IPC  ?

• H01Q 1/50 - Association structurale d'antennes avec commutateurs de terre, dispositions de descente d'antennes ou parafoudres
• H01Q 5/335 - Dispositions permettant un fonctionnement sur différentes gammes d’ondes Éléments rayonnants individuels ou couplés, chaque élément étant alimenté d’une façon non précisée utilisant des circuits ou des composants dont la réponse dépend de la fréquence, p.ex. des circuits bouchon ou des condensateurs au point d’alimentation, p.ex. aux fins d’adaptation d’impédance

Abrégé

Disclosed is an avionics device for assisting in the control of at least one automated system of an aircraft, the device being able to connect, via a network, to the at least one automated system and to a plurality of distinct sources of the automated system. The device is configured for: collecting avionics data supplied by the plurality of sources and supplied by the at least one automated system; classifying and analyzing the collected data as a function of each predetermined property to be restored to the at least one automated system; and determining, from the classified and analyzed data and from a current state of the aircraft, whether an avionics setpoint, manually entered into the device, can be attained by the at least one automated system.

Classes IPC  ?

• B64D 45/00 - Indicateurs ou dispositifs de protection d'aéronefs, non prévus ailleurs
• G01C 23/00 - Instruments combinés indiquant plus d’une valeur de navigation, p.ex. pour l’aviation; Dispositifs de mesure combinés pour mesurer plusieurs variables du mouvement, p.ex. la distance, la vitesse ou l’accélération

Abrégé

Wide-angle impedance-matching device (102) for a radiating-element array antenna, comprising: - a transmission screen (103) having a first surface intended to be positioned facing the radiating-element array parallel to the radiating aperture of the antenna and being configured to match the impedance of the antenna for an H-plane scan, - and a set of metal pins (104) placed orthogonally, on at least one surface of the transmission screen (103), at the intersection of at least some of the respective anti-symmetry planes of the electric field radiated by the antenna for an H-plane scan, for two linear polarizations in two orthogonal directions, said set of metal pins (104) being configured to match the impedance of the antenna for an E-plane scan.

Classes IPC  ?

• H01Q 21/06 - Réseaux d'unités d'antennes, de même polarisation, excitées individuellement et espacées entre elles
• H01Q 1/38 - Forme structurale pour éléments rayonnants, p.ex. cône, spirale, parapluie formés par une couche conductrice sur un support isolant
• H01Q 9/04 - Antennes résonnantes
• H01Q 15/24 - Dispositifs polarisants; Filtres polarisants
• H01Q 21/29 - Combinaisons d'unités d'antennes de types différents interagissant entre elles pour donner une caractéristique directionnelle désirée
• H03H 7/38 - Réseaux d'adaptation d'impédance

Abrégé

The present invention relates to a method for determining detection thresholds of a CFAR detection system of a sensor observing an environment, the CFAR detection system being provided with an estimator adapted to determine an estimate of parameters related to noise affecting the sensor depending on parameters related to the environment, the method comprising the steps of: estimation of parameters related to noises, in order to obtain a parameter vector, computation of first detection thresholds so that, for all possible configurations of the parameter vector, the CFAR detection system operates at a predefined false alarm probability, characterization of estimation errors of the estimator, and correction of each first detection threshold in order to obtain second detection thresholds, the step of correcting taking into account the error parameters.

Classes IPC  ?

• G08B 29/18 - Prévention ou correction d'erreurs de fonctionnement

Abrégé

The invention concerns a system for receiving by a gNB a location information sent by a GNSS chipset comprised in a mobile equipment, the location information being part of a signalling message as part of an initial access procedure, before network dedicated signaling ciphering setup procedure occurs, the GNSS chipset returning to the mobile equipment the location information concealed by a crypto scheme that does not need any diversification from one chipset to another, the concealed location information being de-concealed by a deciphering server at the level of the gNB by a reversed crypto scheme that does not need any diversification from one chipset to another for sending the location information in clear to a dedicated 5G core network, the dedicated 5G core network being the one able to handle a communication with the mobile equipment.

Classes IPC  ?

• H04L 9/40 - Protocoles réseaux de sécurité
• G01S 19/37 - Récepteurs - Détails de construction ou détails de matériel ou de logiciel de la chaîne de traitement des signaux - Détails de matériel ou de logiciel de la chaîne de traitement des signaux
• H04W 12/03 - Protection de la confidentialité, p.ex. par chiffrement
• H04W 12/40 - Dispositions de sécurité utilisant des modules d’identité

Abrégé

A method for managing a head-mounted display having a predetermined field of view and a predetermined axis of sight and configured to display a plurality of graphic messages, the method comprising the following steps implemented when the head-mounted display is being worn by a user in a predetermined environment comprising a plurality of information interfaces: A1. determining a first datum (D1) relating to a position and orientation of a head of the user with respect to the environment based on information relating to a spatial arrangement of the environment; B. modifying a brightness of the head-mounted display and/or adjusting the graphic messages, depending on a dataset containing the first datum and containing information relating to the interfaces.

Classes IPC  ?

• G09G 3/00 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques
• B64D 43/00 - Aménagements ou adaptations des instruments
• G06F 3/01 - Dispositions d'entrée ou dispositions d'entrée et de sortie combinées pour l'interaction entre l'utilisateur et le calculateur

Abrégé

A method of integrity control, an allocation of virtual identifier, to each stream, only known to each transmitter or receiver, located at one end of the stream, a transmission by a transmitter at the end of a stream, of a message including the payload, the value of a counter of transmitted messages, and a transmission aggregate determined from the virtual identifier known to the transmitter, the value, the payload, the reception by a receiver, at the other end of the stream, of the message, and determination of a reception aggregate from the virtual identifier known to the receiver, the value received, the payload received, the end-to-end integrity check by comparing transmission and reception aggregates.

Classes IPC  ?

• H04L 43/0823 - Erreurs, p.ex. erreurs de transmission

Abrégé

A method for measuring the performance of a CFAR detection system of a sensor in observing an environment, the CFAR detection system being provided with an estimator suitable for determining an estimate of parameters related to noise affecting the sensor depending on parameters related to the environment, the measurement method including estimating noise-related parameters, obtaining detection thresholds for the CFAR detection system, characterizing estimation errors of the estimator of the CFAR detection system, determining each detection threshold likely to be actually used by the CFAR system due to estimation errors, and calculating the performance of the CFAR detection system on the basis of the detection thresholds determined.

Classes IPC  ?

• G08B 29/04 - Surveillance des circuits détecteurs

Abrégé

A method of protecting an incoming stream, the incoming stream including at least one incoming elementary video stream, the incoming elementary video stream including a succession of incoming video packets, the method characterized by the disassembling of the incoming stream for separating a current packet; the encryption of the current packet with a session key, the building of a confidentiality metadata packet including a time stamp field corresponding to a time stamp of the current packet and a confidentiality field containing the session key, the encryption of the confidentiality data packet with an encryption key, and the assembling of an outgoing stream including an outgoing elementary stream grouping together the encrypted current packets and an elementary confidentiality metadata stream including the encrypted confidentiality metadata packets.

Classes IPC  ?

• H04L 9/08 - Répartition de clés

Abrégé

A method for controlling the pointing of an antenna situated on a platform in the direction of a communications device emitting a reference signal, includes the following steps: S1) apply a first mode of pointing of the antenna using almanac data for the platform and for the communications device so as to obtain an initial position of pointing in azimuth and in elevation of the boresight of the antenna; S2) apply a second mode of pointing of the antenna, comprising at least one scan of the antenna around the initial position so as to point the antenna in a direction that maximizes a received power of the reference signal; S3) apply a third mode of pointing of the antenna wherein at least one triangulation manoeuvre is implemented for pointing the antenna based on the maximum power.

Classes IPC  ?

• H01Q 3/34 - Dispositifs pour changer ou faire varier l'orientation ou la forme du diagramme de directivité des ondes rayonnées par une antenne ou un système d'antenne faisant varier la distribution de l’énergie à travers une ouverture rayonnante faisant varier la phase par des moyens électriques
• H01Q 3/26 - Dispositifs pour changer ou faire varier l'orientation ou la forme du diagramme de directivité des ondes rayonnées par une antenne ou un système d'antenne faisant varier la distribution de l’énergie à travers une ouverture rayonnante

Abrégé

The invention relates to a target characterisation method for a detection device of multi-panel radar or sonar type with electronic scanning, comprising the steps of: generating a plurality of pulses on a plurality of antenna panels (PE1, PE2, PE3) of the detection device according to a temporal and angular interleaving pattern, so as to perform a scan over all of the relative bearing domain of the detection device; generating a plurality of detection maps, by the acquisition of a plurality of observations combined with one another by coherent or non-coherent integration of the echoes corresponding to the plurality of pulses, each detection map being obtained in a given direction (EL1, EL2, EL3) corresponding to the width of the main lobe of the antenna panel; combining the detection maps so as to detect a presence of a target in the relative bearing domain of the detection device.

Classes IPC  ?

• G01S 7/295 - Moyens pour transformer des coordonnées ou pour évaluer des données, p.ex. en utilisant des calculateurs
• G01S 7/41 - DÉTERMINATION DE LA DIRECTION PAR RADIO; RADIO-NAVIGATION; DÉTERMINATION DE LA DISTANCE OU DE LA VITESSE EN UTILISANT DES ONDES RADIO; LOCALISATION OU DÉTECTION DE LA PRÉSENCE EN UTILISANT LA RÉFLEXION OU LA RERADIATION D'ONDES RADIO; DISPOSITIONS ANALOGUES UTILISANT D'AUTRES ONDES - Détails des systèmes correspondant aux groupes , , de systèmes selon le groupe utilisant l'analyse du signal d'écho pour la caractérisation de la cible; Signature de cible; Surface équivalente de cible
• G01S 7/53 - Moyens pour transformer les coordonnées ou pour évaluer les données, p.ex. utilisant des calculateurs
• G01S 7/539 - DÉTERMINATION DE LA DIRECTION PAR RADIO; RADIO-NAVIGATION; DÉTERMINATION DE LA DISTANCE OU DE LA VITESSE EN UTILISANT DES ONDES RADIO; LOCALISATION OU DÉTECTION DE LA PRÉSENCE EN UTILISANT LA RÉFLEXION OU LA RERADIATION D'ONDES RADIO; DISPOSITIONS ANALOGUES UTILISANT D'AUTRES ONDES - Détails des systèmes correspondant aux groupes , , de systèmes selon le groupe utilisant l'analyse du signal d'écho pour la caractérisation de la cible; Signature de cible; Surface équivalente de cible
• G01S 13/42 - Mesure simultanée de la distance et d'autres coordonnées
• G01S 13/89 - Radar ou systèmes analogues, spécialement adaptés pour des applications spécifiques pour la cartographie ou la représentation
• G01S 15/42 - Mesure simultanée de la distance et d'autres coordonnées
• G01S 15/89 - Systèmes sonar, spécialement adaptés à des applications spécifiques pour la cartographie ou la représentation

Abrégé

Procédé de contrôle d'au moins un drone (12) comprenant au moins un capteur d'images (22) configuré pour observer un motif d'observation (24), le procédé de contrôle comprenant une phase d'exploitation, comprenant des étapes de : - obtention d'une carte d'observation pour une région (16) comprenant une pluralité de zones géographiques, la carte d'observation définissant une partie des zones géographiques de la région (16) comme des zones à observer ; - réception d'une carte d'éclairage, comprenant, pour chaque zone à observer, un état d'observation par le drone (12) ; - réception d'une information de drone relative à une position du drone (12) et/ou une orientation du capteur d'images (22) ; - détermination d'au moins une commande pour le drone (12) par au moins un réseau de neurones.

Abrégé

There is provided a method and a system for evaluating a relevance score of a given subset of nodes in a knowledge graph (KG) for purpose of link prediction. An ontology used to generate the KG is obtained and clustered to obtain a set of ontology clusters. A set of vectors having been generated by using an embedding model on the KG is obtained and clustered to obtain a set of vector clusters. Training subgraphs are generated based on the set of ontology clusters and the set of vector clusters by removing subsets of nodes from the KG. Respective prediction models are trained on each training subgraph and ranked based on their link predictions. The relevance score of each removed subset of nodes is determined based on the ranked models. A given subset of nodes is provided as a potential explanation based on the relevance score.

Classes IPC  ?

• G06N 5/04 - Modèles d’inférence ou de raisonnement
• G06N 20/00 - Apprentissage automatique

Abrégé

Ce procédé de protection d'un flux entrant (10), le flux entrant comportant au moins un flux élémentaire vidéo entrant (11), le flux élémentaire vidéo entrant comportant une succession de paquets vidéo entrants (12), est caractérisé par : le désassemblage (32) du flux entrant pour séparer un paquet courant ; le cryptage du paquet courant avec une clé de session (TEK) ; la construction (35) d'un paquet de métadonnées de confidentialité comportant un champ d'étiquette temporelle correspondant à une étiquette temporelle du paquet courant et un champ de confidentialité reprenant la clé de session ; le chiffrage du paquet de données de confidentialité avec une clé de chiffrage (KEK) ; l'assemblage (36) d'un flux sortant (20) comportant un flux élémentaire sortant regroupant les paquets courants cryptés (22) et d'un flux élémentaire de métadonnées de confidentialité comportant les paquets de métadonnées de confidentialité chiffrés (26).

Abrégé

A method for processing a data stream from an uncertified video source, the data stream being intended to be displayed at least partially on a display screen of a cockpit of an aircraft, the display screen having predetermined dimensions and a predetermined resolution. The processing method comprises a calibration mode comprising a step wherein a window of interest is selected on the display screen of the cockpit by the pilot. The processing method further comprises a step wherein a portion of the data stream corresponding to the selected window of interest is displayed on the display screen.

Classes IPC  ?

• G06F 3/04886 - Techniques d’interaction fondées sur les interfaces utilisateur graphiques [GUI] utilisant des caractéristiques spécifiques fournies par le périphérique d’entrée, p.ex. des fonctions commandées par la rotation d’une souris à deux capteurs, ou par la nature du périphérique d’entrée, p.ex. des gestes en fonction de la pression exer utilisant un écran tactile ou une tablette numérique, p.ex. entrée de commandes par des tracés gestuels par partition en zones à commande indépendante de la surface d’affichage de l’écran tactile ou de la tablette numérique, p.ex. claviers virtuels ou menus
• B64D 43/00 - Aménagements ou adaptations des instruments
• G06F 3/041 - Numériseurs, p.ex. pour des écrans ou des pavés tactiles, caractérisés par les moyens de transduction
• G06F 3/04842 - Sélection des objets affichés ou des éléments de texte affichés
• G06F 3/04845 - Techniques d’interaction fondées sur les interfaces utilisateur graphiques [GUI] pour la commande de fonctions ou d’opérations spécifiques, p.ex. sélection ou transformation d’un objet, d’une image ou d’un élément de texte affiché, détermination d’une valeur de paramètre ou sélection d’une plage de valeurs pour la transformation d’images, p.ex. glissement, rotation, agrandissement ou changement de couleur
• G06F 3/14 - Sortie numérique vers un dispositif de visualisation

Abrégé

An antenna system including at least one elementary antenna, a metallic plane provided around the elementary antenna, and a decoupling device arranged on the metallic plane, the decoupling device being of the three-dimensional electromagnetic absorption structure type constituted of a plurality of cells arranged in an array, each cell includes, stacked according to a direction normal to the metal plane, a base surmounted by a raised wall, the antenna system being characterized in that the raised wall is shaped so as to form a recessed pattern for trapping electromagnetic waves.

Classes IPC  ?

• H01Q 11/10 - Antennes à variations périodiques ou logarithmiques
• H01Q 13/02 - Cornets de guide d'onde

Abrégé

A method allowing an aircraft to follow a lateral path with a determined safety level. The method consists in determining a 3D corridor around a predicted path of the aircraft, based on at least one computed safety distance. If the safety corridor conflicts with at least one obstacle in a terrain and obstacle database, the vertical flight profile of the aircraft is modified in order to increase the altitude of the aircraft, to avoid obstacles while keeping lateral path constant.

Classes IPC  ?

• G08G 5/04 - Systèmes anticollision
• G06V 10/80 - Fusion, c. à d. combinaison des données de diverses sources au niveau du capteur, du prétraitement, de l’extraction des caractéristiques ou de la classification
• G08G 5/00 - Systèmes de commande du trafic aérien

Abrégé

A method sharing data between aeronautical equipment items. At least one equipment item is included in an aircraft carrying out a flight mission. The method includes obtaining a set of data coming from said equipment item. The method further includes adding of the set of data to a common group including data common to all aeronautical equipment items. The method incudes filtering the data of the common group in order to determine at least one first relevant datum for successfully completing the flight mission. The method incudes transmitting, to at least one other equipment item, of only the at least first relevant datum to be used for a display to a respective user, or for a computation, of a command of the aircraft.

Classes IPC  ?

• B64D 45/00 - Indicateurs ou dispositifs de protection d'aéronefs, non prévus ailleurs

Abrégé

The invention relates to a method for allocating time-frequency telecommunication resources in a telecommunication system (10) comprising a satellite (11), user terminals UE (20_1, 20_2), the satellite simultaneously rendering multiple telecommunication beams (B_1, B_2) that are each associated with a separate user terminal UE (20_1, 20_2) and dynamically re-centering each beam on the associated UE; said method comprising: - given a set (80) of grids each representing at least a portion of the Earth's surface and each comprising a plurality of areas, the distance between any two areas of a grid being above a determined non-zero threshold associated with the grid, the time-frequency resources are allocated relative to a time T by applying at least the following rule: a time- frequency resource associated with the grid may be allocated to each of 2 UEs (20_1, 20_2) only if the positions of said 2 UEs are in separate areas of the grid.

Classes IPC  ?

• H04B 7/204 - Accès multiple
• H04W 72/04 - Affectation de ressources sans fil
• H04B 7/02 - Systèmes de diversité; Systèmes à plusieurs antennes, c. à d. émission ou réception utilisant plusieurs antennes

Abrégé

A scope observing a scene, the scope includes a first optical sub-assembly, called the afocal module, and a second optical sub-assembly, called the display module, the afocal module comprising: a removable and switchable linear polarizer, a first polarization-splitting element, an afocal optical system the first polarization-splitting element the display module comprising: a half-wave plate, called the distribution plate, a display, an optical objective configured to collimate the display light; a second polarization-splitting element arranged after the distribution half-wave plate.

Classes IPC  ?

• G02B 23/04 - Télescopes ou lunettes d'approche, p.ex. jumelles; Périscopes; Instruments pour voir à l'intérieur de corps creux; Viseurs; Pointage optique ou appareils de visée comprenant des prismes ou des miroirs afin de partager ou de combiner des faisceaux lumineux, p.ex. munis d'oculaires pour plus d'un observateur
• F41G 1/30 - Appareils de visée à réflexion spécialement adaptés aux armes à feu individuelles ou aux pièces d'artillerie
• F41G 1/38 - Appareils de visée télescopiques spécialement adaptés aux armes à feu individuelles ou aux pièces d'artillerie; Leurs supports ou leurs montures
• G02B 5/122 - Réflecteurs reflex du type en sommet de cube, en trièdre ou en réflecteur triple
• G02B 17/08 - Systèmes catadioptriques
• G02B 27/28 - Systèmes ou appareils optiques non prévus dans aucun des groupes , pour polariser
• G02F 1/139 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p.ex. commutation, ouverture de porte ou modulation; Optique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p.ex. cellules d'affichage individuelles à cristaux liquides caractérisés par l'effet électro-optique ou magnéto-optique, p.ex. transition de phase induite par un champ, effet d'orientation, interaction entre milieu récepteur et matière additive ou diffusion dynamique basés sur des effets d'orientation où les cristaux liquides restent transparents

Abrégé

A method for allocating time-frequency telecommunication resources in a telecommunication system includes a satellite, user terminals UE (20_1, 20_2), the satellite simultaneously rendering multiple telecommunication beams (B_1, B_2) that are each associated with a separate user terminal UE (20_1, 20_2) and dynamically re-centering each beam on the associated UE; the method comprising: given a set of grids each representing at least a portion of the Earth's surface and each comprising a plurality of areas, the distance between any two areas of a grid being above a determined non-zero threshold associated with the grid, the time-frequency resources are allocated relative to a time T by applying at least the following rule: a time-frequency resource associated with the grid may be allocated to each of 2 UEs (20_1, 20_2) only if the positions of the 2 UEs are in separate areas of the grid.

Classes IPC  ?

• H04B 7/185 - Stations spatiales ou aériennes
• H04B 7/06 - Systèmes de diversité; Systèmes à plusieurs antennes, c. à d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station d'émission

Abrégé

A satellite system includes a radio frequency signal amplifier device comprising a control and supply module and a plurality of travelling wave tubes. The module is configured to apply to at least one of the tubes an anode voltage operating value, generating a cathode current in response. The module is moreover configured to measure at least one sum of the cathode currents that is associated with the plurality of tubes, the at least one measurement of the sum of the cathode currents being implemented on the basis of a single measuring circuit, and to determine at least one corrected anode voltage operating value, associated with the at least one of the tubes, on the basis of the at least one measurement of the sum of the cathode currents.

Classes IPC  ?

• H03F 1/06 - Modifications des amplificateurs pour augmenter leur rendement, p.ex. étages classe A à pente glissante, utilisation d'une oscillation auxiliaire dans les amplificateurs à tubes à décharge pour augmenter le rendement des amplificateurs fonctionnant aussi en modulateurs
• H03F 3/189 - Amplificateurs à haute fréquence, p.ex. amplificateurs radiofréquence

Abrégé

A method for remotely controlling the flight of an aircraft following a first flight plan, the aircraft includes a communication module connected to a flight management centre of the aircraft, the communication module being suitable for allowing a communication between a terrestrial communication station and the aircraft, the method comprising the following steps: determining, in the terrestrial communication station, an incapacity of the pilot or pilots of the aircraft, using the communication module, receiving a first signal that has been coded using a predetermined code and transmitted by the terrestrial communication station, and then decoding the first signal using the predetermined code, which has previously been stored in the communication module, after the first signal has been decoded, sending, using the communication module, a command to the flight management centre prompting a second flight plan to be followed by the aircraft.

Classes IPC  ?

• G08G 5/00 - Systèmes de commande du trafic aérien

Abrégé

The proposal is a satellite system (10) comprising a radio frequency signal amplifier device (100) comprising a control and supply module (1040) and a plurality of travelling wave tubes (1020-n). The module (1040) is configured to apply to at least one of said tubes an anode voltage operating value, generating a cathode current in response. The module (1040) is moreover configured to measure at least one sum of the cathode currents that is associated with said plurality of tubes, said at least one measurement of the sum of the cathode currents being implemented on the basis of a single measuring circuit (1044), and to determine at least one corrected anode voltage operating value, associated with said at least one of said tubes, on the basis of said at least one measurement of the sum of the cathode currents.

Classes IPC  ?

• H03F 3/58 - Amplificateurs utilisant l'effet de temps de transit dans des tubes ou des dispositifs à semi-conducteurs utilisant des tubes à ondes progressives
• H03F 3/189 - Amplificateurs à haute fréquence, p.ex. amplificateurs radiofréquence
• H03F 3/20 - Amplificateurs de puissance, p.ex. amplificateurs de classe B, amplificateur de classe C
• H04B 1/04 - Circuits
• H04B 7/00 - Systèmes de transmission radio, c. à d. utilisant un champ de rayonnement

Abrégé

A method for controlling an unmanned aircraft includes determining a maximum flying altitude for a ground position of the aircraft, the method comprising: for each point from a plurality of ground points situated within a perimeter around the ground position of the aircraft, referred to as “surrounding points”, determining one or more intersections between firstly a circle, the centre of which is the point and the radius of which is the maximum authorized ground distance at this point, referred to as the “determination circle”, and secondly a vertical related to the ground position of the aircraft, the circle being contained in a vertical plane comprising the vertical related to the ground position of the aircraft; and for all of the intersections thus obtained, selecting the greatest altitude as the maximum flying altitude.

Classes IPC  ?

• G05D 1/04 - Commande de l'altitude ou de la profondeur

Abrégé

An unmanned aircraft includes three parallel beams extending in at least one longitudinal direction X from a rear side to a front side of the aircraft, the central beam forming a main fuselage containing a powertrain, with a propeller of diameter D configured to be driven by the powertrain being attached to a front end of the central beam, each side beam being at a distance L/2 from the central beam and each side beam supporting a radar at a front end of the beam.

Classes IPC  ?

• B64U 20/87 - Montage des dispositifs d’imagerie, p. ex. montage des suspensions à cardan
• B64U 20/70 - Caractéristiques de construction du corps du véhicule aérien sans pilote
• B64U 50/20 - Transmission de puissance mécanique à des rotors ou des hélices
• G01S 13/933 - Radar ou systèmes analogues, spécialement adaptés pour des applications spécifiques pour prévenir les collisions d'aéronefs ou d'engins spatiaux

Abrégé

A device for controlling radiofrequency beams comprising a set of cells. Each cell comprises a support frame and an excitation element, and emits and/or receives beams in an invariant manner according to the direction of propagation of the beam. The frame is inscribed within a generally tubular shape, oriented along the axis Z of a reference frame, having a cross section of perimeter P, and comprises an entrance, an exit and a number N of slots between the exit and a position Zo located between the entrance and the exit. Each slot has a variable width along Z. The slot width has a minimum value at the position Zo, and a maximum value at the exit that is determined on the basis of the perimeter P and the number N.

Classes IPC  ?

• H01Q 13/08 - Terminaisons rayonnantes de lignes de transmission micro-ondes à deux conducteurs, p.ex. lignes coaxiales ou lignes micro-rayées
• H04B 7/06 - Systèmes de diversité; Systèmes à plusieurs antennes, c. à d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station d'émission

Abrégé

The invention proposes a device (10) for controlling radiofrequency beams comprising a set of cells (100). Each cell comprises a support frame (130) and an excitation element (150), and emits and/or receives beams in an invariant manner according to the direction of propagation of the beam. The frame is inscribed within a generally tubular shape, oriented along the axis Z of a reference frame (X,Y,Z), having a cross section of perimeter P, and comprises an entrance (131), an exit (132) and a number N of slots (133-n) between the exit and a position Zo located between the entrance and the exit. Each slot has a variable width along Z. The slot width has a minimum value at the position Zo, and a maximum value at the exit that is determined on the basis of the perimeter P and the number N.

Classes IPC  ?

• H01Q 3/26 - Dispositifs pour changer ou faire varier l'orientation ou la forme du diagramme de directivité des ondes rayonnées par une antenne ou un système d'antenne faisant varier la distribution de l’énergie à travers une ouverture rayonnante
• B33Y 10/00 - Procédés de fabrication additive
• H01Q 1/12 - Supports; Moyens de montage
• H01Q 1/36 - Forme structurale pour éléments rayonnants, p.ex. cône, spirale, parapluie
• H01Q 21/29 - Combinaisons d'unités d'antennes de types différents interagissant entre elles pour donner une caractéristique directionnelle désirée

Abrégé

A microwave-frequency power-transmission window assembly includes a microwave-frequency power-transmission window comprising: two tubes each having two parallel oblique planar cross sections, one oblique planar cross section being non-perpendicular to the central axis of the tube and being of constant thickness in the oblique planar cross section; and an optical plate assembled between the two respective ends of the two tubes positioned facing one another; a tubular extension element extending the microwave-frequency power-transmission window; two centring rings that centre the microwave-frequency power-transmission window in the tubular extension element; and an external housing equipped with two transparent portions positioned at the ends of the microwave-frequency power-transmission window tubular extension element.

Classes IPC  ?

• H01P 5/08 - Dispositifs de couplage du type guide d'ondes destinés au couplage de lignes ou de dispositifs de différentes sortes
• H01P 1/08 - Fenêtres diélectriques
• H01P 5/02 - Dispositifs de couplage du type guide d'ondes à coefficient de couplage invariable

Abrégé

A radiology device includes an ionizing ray generator and a detector configured to detect the rays emitted by the generator, the generator and the detector being opposite with respect to one another, the device delimiting a useful volume, passed through by the ionizing rays from the generator and received by the detector, the generator comprising several sources distributed along a direction and each emitting a beam of ionizing rays that is essentially flat and of fantail form, the sources being disposed so as to irradiate all of the useful volume without translation. A method is provided implementing a device and consisting in successively sequencing the emission of several of the sources.

Classes IPC  ?

• A61B 6/40 - Agencements pour générer des radiations spécialement adaptés au diagnostic par radiations
• A61B 6/00 - Appareils pour diagnostic par radiations, p.ex. combinés avec un équipement de thérapie par radiations
• A61B 6/03 - Tomographes assistés par ordinateur

Abrégé

Provided is a low capability device (UE) active in a communication system comprising a plurality of satellites (Si, Sj) insuring a temporally continuous communication coverage for the low capability device (UE), said satellites being further grouped in families (S1x), satellites of a same family (S1x) sharing same and common access information, said device (UE) comprises a power saving module to send to the serving satellite (S11), during a first data session, a next access request for a next or continued data session with time indications including at least a desired next time interval to be granted for communication. Other embodiments disclosed.

Classes IPC  ?

• H04B 7/185 - Stations spatiales ou aériennes
• H04W 52/02 - Dispositions d'économie de puissance

Abrégé

An aircraft includes an airframe including a fuselage, a wing, and a tail, a main propulsion unit, including a motor and a propeller, a flight control device, including electric actuators, movable surfaces and sensors, and an autopilot computer sending instructions to the main propulsion unit and to the flight control device. Such unmanned aircraft further includes a pair of auxiliary propulsion units, each auxiliary propulsion unit including an electric motor, a propeller driven by the electric motor, and means for orienting the plane of the propeller with respect to the airframe, the flight control computer being programmed for setting a steering angle and a propeller speed of each auxiliary propulsion unit so as to compensate for a malfunction of the flight control system and/or of the main propulsion unit, in order to control the trajectory along all axes, the unmanned aircraft thereby exhibiting increased reliability.

Classes IPC  ?

• B64U 10/25 - Aéronefs à voilure fixe
• B64D 27/31 - à l'intérieur des ailes ou fixés à celles-ci
• B64U 50/13 - Propulsion utilisant des soufflantes ou des hélices externes
• B64U 50/18 - Orientation de la poussée
• B64U 50/19 - Propulsion utilisant des moteurs électriques

Abrégé

A quasi-optical beamformer includes a plurality N> 1 of power feeds (PF), each of the i∈[1; N] power feeds (PF) being configured to emit a respective radio-frequency beam denoted Ri, a radio-frequency transmission line (LT) fed at a first end by the power feeds and comprising at a second end a plurality of network ports (PR) that are configured to collect radio-frequency radiation, the transmission line (LT) comprising a radio-frequency waveguide (GO) that comprises at least two metal plates (PM) that are stacked so as to guide the radio-frequency beams Ri, i∈[1; N] towards the network ports (PR), the transmission line (LT) extending along a central main axis denoted axis x, a first reflector (M1) having a first centre (C1) centred on the axis x and a first effective radius of curvature and being configured to reflect the guided radio-frequency beams Ri, i∈[1; N], a second reflector (M2) having a second effective radius of curvature and being configured to reflect the radio-frequency beams (RFi) reflected by the first reflector so as to direct them towards the network ports so as to form output radio-frequency beams (RSi), the first and second effective radii of curvature and an arrangement of the power feeds (PF) with respect to the first reflector being configured so that: each of the output radio-frequency beams (RSi) is a plane wave, and a transverse amplitude distribution Ai, on the network ports (PR), of each output radio-frequency beam (RSi), is substantially identical.

Classes IPC  ?

• H01Q 19/06 - Combinaisons d'éléments actifs primaires d'antennes avec des dispositifs secondaires, p.ex. avec des dispositifs quasi optiques, pour donner à une antenne une caractéristique directionnelle désirée utilisant des dispositifs de réfraction ou de diffraction, p.ex. lentilles
• H01Q 9/04 - Antennes résonnantes
• H01Q 23/00 - Antennes comportant des circuits ou des éléments de circuit actifs qui leur sont intégrés ou liés
• H04B 7/06 - Systèmes de diversité; Systèmes à plusieurs antennes, c. à d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station d'émission

Abrégé

Quasi-optical beamformer (1) comprising. -a plurality N > 1 of powei feeds (PF), each of the i c [1;N] power feeds (PF) being configured to emit a respective radio-frequency beam denoted Ri, - a radio-frequency transmission line (LT) fed at a first end by the power feeds and comprising at a second end a plurality of network ports (PR) that are configured to collect radio-frequency radiation, the transmission line (LT) comprising a radio-frequency waveguide (GO) that comprises at least two metal plates (PM) that are stacked so as to guide the radio-frequency beams Ri, i c [1; IV] towards the network ports (PR), the lransmission line (LT) extending along a cenlral main axis denoted axis x, - a first reflector (M1) having a first centre (C1) centred on the axis x and a first effective radius of curvature and being configured to reflect the guided radio-frequency beams Roi c [1; N], - a second reflector (M2) having a second effective radius of curvature and being configured to reflect the radio-frequency beams (RF) reflected by the first reflector so as to direct them towards the network ports so as to form output radio-frequency beams (RSi), the first and second effective radii of curvature and an arrangement of the power feeds (PF) with respect to the first reflector being configured so that - each of the output radio-frequency beams (RS,) is a plane wave, and - a transverse amplitude distribution Ai, on the network ports (PR), of each output radio-frequency beam (RS), is substantially identical

Classes IPC  ?

• H01Q 19/17 - Combinaisons d'éléments actifs primaires d'antennes avec des dispositifs secondaires, p.ex. avec des dispositifs quasi optiques, pour donner à une antenne une caractéristique directionnelle désirée utilisant des surfaces réfléchissantes où les surfaces sont concaves la source rayonnante primaire comprenant plusieurs éléments rayonnants
• H01Q 15/14 - Surfaces réfléchissantes; Structures équivalentes
• H05K 1/02 - Circuits imprimés - Détails

Abrégé

A method for guiding an autonomous aircraft, the aircraft includes an automatic pilot, a plurality of sensors and an imaging unit, the aircraft being configured to fly over a geographic zone comprising overflight prohibited zones, the guidance method can advantageously comprise a phase of real flight of the autonomous aircraft by using a given guidance law, comprising the following steps: determining a current state of the autonomous aircraft; determining an optimum action to be executed by using a neural network receiving the current state; determining a plurality of control instructions compatible with the guidance law based on the optimum action to be executed; transmitting to the automatic pilot the plurality of control instructions, which provides a new state of the autonomous aircraft.

Classes IPC  ?

• G05D 1/229 - Données d’entrée de commande, p. ex. points de passage
• G05D 1/46 - Commande de la position ou du cap dans les trois dimensions
• G05D 1/689 - dirigeant des charges utiles vers des cibles fixes ou en mouvement (positionnement d’équipements tractés, poussés ou suspendus G05D 1/672)

Abrégé

A method for the servo control of an optical device includes a cavity exhibiting resonance around a center frequency ƒc, a laser and a phase modulator, the method being designed to servo-control the cavity to the laser or vice versa and to compensate for an amplitude modulation introduced by the phase modulator, the method comprising, inter alia, the following steps: A. varying a difference δν between the optical frequency of the laser radiation and the center frequency, such that the optical frequency scans the resonance, the difference being controlled by a parameter of an element of the device, and for each difference δνi i. modulating, at a modulation frequency ƒmod, a phase of the laser radiation, through a modulation phase ϕmod, with the phase modulator, ii. injecting the phase-modulated radiation into the cavity, iii. using a photodiode to detect radiation reflected or transmitted by the cavity and generating an electrical signal (St, Sr) representative of the intensity of the detected radiation, iv. demodulating the electrical signal at the modulation frequency ƒmod by synchronously generating a first demodulated signal and a second demodulated signal representative of the demodulated electrical signal, respectively at a first demodulation phase ϕdem,1 and at a second modulation phase ϕdem,2ϕdem,2≈ϕdem,1k, where k∈[0; 2π] is different from the first phase, and by filtering the first and the second signal so as to retain only a DC component of the first demodulated signal Vϵ1, called error signal 1, and of the second demodulated signal Vϵ2, called error signal 2.

Classes IPC  ?

• H01S 3/00 - Lasers, c. à d. dispositifs utilisant l'émission stimulée de rayonnement électromagnétique dans la gamme de l’infrarouge, du visible ou de l’ultraviolet
• H01S 3/137 - Stabilisation de paramètres de sortie de laser, p.ex. fréquence ou amplitude par commande de dispositifs placés dans la cavité pour la stabilisation de la fréquence
• H01S 3/139 - Stabilisation de paramètres de sortie de laser, p.ex. fréquence ou amplitude par commande de la position relative ou des propriétés réfléchissantes des réflecteurs de la cavité

Abrégé

A GNSS signal multipath detection device (16) for a GNSS receiver (12) on-board a carrier further comprising one or a plurality of antennas (14) and comprising: a movement generation module (22) configured for generating a movement of an apparent phase center according to a control law; a control module (23) configured for determining the control law; a prediction module (24) configured for determining a prediction of an observable value provided by the GNSS receiver (12), from the control law and directions of arrival of the GNSS signals; an anomaly detection module (25) configured for detecting multipaths by comparing an observable value coming from the GNSS receiver (12) with the corresponding prediction thereof.

Classes IPC  ?

• G01S 19/22 - Problèmes liés aux multitrajets

Abrégé

The present invention relates to a device for amplifying a multi-wavelength laser beam, comprising: a. a first active laser medium having a front face and a rear face which is reflective, inclined with respect to each other at a first non-zero inclination, and b. a second active laser medium having a front face suitable for receiving the beam reflected by the rear face and refracted by the front face of the first active laser medium, and a reflective rear face, inclined with respect to each other at a second non-zero inclination, the first inclination, the second inclination and the orientation of the second active laser medium being such that the sub-beams of each wavelength, forming the output beam of the second active laser medium, are parallel to each other at the output of the second active laser medium.

Classes IPC  ?

• H01S 3/06 - Structure ou forme du milieu actif
• H01S 3/00 - Lasers, c. à d. dispositifs utilisant l'émission stimulée de rayonnement électromagnétique dans la gamme de l’infrarouge, du visible ou de l’ultraviolet
• H01S 3/042 - Dispositions pour la gestion thermique pour des lasers à l'état solide
• H01S 3/23 - Agencement de plusieurs lasers non prévu dans les groupes , p.ex. agencement en série de deux milieux actifs séparés

Abrégé

A measurement of a vibrating inertial sensor disposed on a carrier and includes a resonator extending around two mutually perpendicular x and y axes defining an xy sensor frame of reference and comprising: at least one vibrating movable mass comprising at least two portions configured to vibrate in phase opposition in a direction x′ defining an x′y′ wave frame of reference, with the vibration wave forming an electrical angle θ relative to the x-axis; at least a pair of excitation transducers and a pair of detection transducers operating along the two axes x and y; the correction method being applied when the sensor is operating with a vibration wave vibrating along the x′-axis and comprising the following steps, when the carrier is substantially stationary: A commanding an electrical rotation of the vibration wave according to a commanded angular velocity Ωc, such that the electrical angle θ scans at least one angular range of kπ radians; then B retrieving the measured angular values Ωe measured by the inertial sensor over the angular range, and determining the mean Ωem of the angular values measured; then C subtracting the commanded angular velocity Ωc from the mean Ωem; with steps A to C being carried out for at least two different commanded angular velocities so as to determine at least two means of the measured angular values; then D determining: the mean electrical scale factor error FEem, and the actual angular value Ωv of the carrier plus a drift value Dm of the sensor, the determining being carried out on the basis of the commanded angular velocity Ωc and of the means Ωem of the measured angular values, according to the following formula: A measurement of a vibrating inertial sensor disposed on a carrier and includes a resonator extending around two mutually perpendicular x and y axes defining an xy sensor frame of reference and comprising: at least one vibrating movable mass comprising at least two portions configured to vibrate in phase opposition in a direction x′ defining an x′y′ wave frame of reference, with the vibration wave forming an electrical angle θ relative to the x-axis; at least a pair of excitation transducers and a pair of detection transducers operating along the two axes x and y; the correction method being applied when the sensor is operating with a vibration wave vibrating along the x′-axis and comprising the following steps, when the carrier is substantially stationary: A commanding an electrical rotation of the vibration wave according to a commanded angular velocity Ωc, such that the electrical angle θ scans at least one angular range of kπ radians; then B retrieving the measured angular values Ωe measured by the inertial sensor over the angular range, and determining the mean Ωem of the angular values measured; then C subtracting the commanded angular velocity Ωc from the mean Ωem; with steps A to C being carried out for at least two different commanded angular velocities so as to determine at least two means of the measured angular values; then D determining: the mean electrical scale factor error FEem, and the actual angular value Ωv of the carrier plus a drift value Dm of the sensor, the determining being carried out on the basis of the commanded angular velocity Ωc and of the means Ωem of the measured angular values, according to the following formula: Ωem−Ωc=(Ωv+Dm)+FEem·Ωc

Classes IPC  ?

• G01C 19/5747 - Dispositifs sensibles à la rotation utilisant des masses vibrantes, p.ex. capteurs vibratoires de vitesse angulaire basés sur les forces de Coriolis utilisant des masses planaires vibrantes entraînées dans une vibration de translation le long d’un axe - Details de structure ou topologie les dispositifs ayant deux masses de détection en mouvement en opposition de phase chaque masse de détection étant reliée à une masse d'entraînement, p.ex. cadres d'entraînement
• G01C 25/00 - Fabrication, étalonnage, nettoyage ou réparation des instruments ou des dispositifs mentionnés dans les autres groupes de la présente sous-classe
• G01C 21/16 - Navigation; Instruments de navigation non prévus dans les groupes en utilisant des mesures de la vitesse ou de l'accélération exécutées à bord de l'objet navigant; Navigation à l'estime en intégrant l'accélération ou la vitesse, c. à d. navigation par inertie

Abrégé

A device for regrowth of a thick structure lattice-matched with InP comprising: a Si substrate, an interface layer of SiO2 on the Si substrate, a bonding layer on the interface layer, said bonding layer being made of a III-V material consisting of an alloy of the AlGaInAs family, and a regrowth layer on the bonding layer, said regrowth layer being made of InP.

Classes IPC  ?

• H01S 5/02 - Lasers à semi-conducteurs - Détails ou composants structurels non essentiels au fonctionnement laser

Abrégé

Provided is a telecommunications system comprising a core network, an Integrated Access Backhaul donor arranged in connection with the core network; and a plurality of Integrated Access Backhaul nodes connected to one Integrated Access Backhaul donor, either directly or by means of other Integrated Access Backhaul nodes. At least some of the Integrated Access Backhaul nodes are configured to operate in different backhauling profiles, and at least some of these Integrated Access Backhaul nodes comprise a UICC which is configured to manage a set of backhauling profiles of the corresponding Integrated Access Backhaul node.

Classes IPC  ?

• H04L 41/0813 - Réglages de configuration caractérisés par les conditions déclenchant un changement de paramètres

Abrégé

A method for assessing technical and non-technical skills of an operator, includes a step of collecting endogenous data relating to physical manifestations of the operator, and exogenous data relating to the context of a session; steps, implemented by data processing modules, of: correlating the collected data in order to link endogenous data to exogenous data; detecting, using the correlated data, observable behavior data comprising at least one trigger event parameter and one action parameter; analyzing the observable behavior data in predefined analysis sequences, each predefined analysis sequence being specific to a skill to be assessed, and comprising a trigger event parameter and an action parameter characterizing an expected observable behavior according to a predefined situation, the analysis generating a measurement indicator; assessing the behaviors of the operator, by comparing an observed behavior with an expected reference behavior; assessing each skill of the operator on the basis of the results of the behavior assessments.

Classes IPC  ?

• G09B 9/08 - Simulateurs pour l'enseignement ou l'entraînement pour l'enseignement de la conduite des véhicules ou autres moyens de transport pour l'enseignement du pilotage des aéronefs, p.ex. bancs d'entraînement au pilotage sans visibilité
• G09B 19/16 - Conduite des véhicules ou autres moyens de transport

Abrégé

A method includes providing logical rules each associating a piece of knowledge with a physical datum or data, analyzing the provided logical rules in order to extract a set of knowledge and a set of physical data; developing a network of logical tensors including a neural network for each piece of knowledge and a neural network for each physical datum, a neural network calculating a relevance of the piece of knowledge or of the associated physical datum from a current situation, defined by the current values of the physical data, training the network on a learning database, and executing the decision-making aid algorithm resulting from the learning phase on a new situation, in order to calculate the relevance of each piece of knowledge and each physical datum with respect to the new situation.

Classes IPC  ?

• G06N 5/025 - Extraction de règles à partir de données

Abrégé

A spacecraft for the distribution of electrical energy to client craft at points situated in free space, in orbit and/or on a celestial body includes a main structure equipped with an electric thruster, with a chemical thruster and with a solar generator, a first fuel container for fuel intended for the electric thruster, and a second fuel container for fuel intended for the chemical thruster. The spacecraft is able to be modulated such that the main structure can be coupled/decoupled alternatively to/from the first container or the second container, the first container and the second container are able to be coupled/decoupled to/from one another, and the solar generator can be deployed or retracted.

Classes IPC  ?

• B64G 1/42 - Aménagements ou adaptations des systèmes fournissant l'énergie
• B64G 1/10 - Satellites artificiels; Systèmes de tels satellites; Véhicules interplanétaires
• B64G 1/40 - Aménagements ou adaptations des systèmes de propulsion
• B64G 1/62 - Systèmes de retour sur terre; Dispositifs de freinage ou d'atterrissage
• B64G 1/64 - Systèmes pour réunir ou séparer des véhicules spatiaux ou des parties de ceux-ci, p.ex. aménagement pour l'accostage ou l'amarrage

Abrégé

This electronic device for storing a terrain database for an avionics system is carried on board an aircraft. The terrain database corresponds to a terrain zone likely to be overflown by the aircraft, represented in the form of a surface area divided into meshes, each mesh corresponding to a sector of the terrain zone, the terrain database having a first resolution and comprising first terrain elevation values, each associated with a respective mesh. The terrain database further comprises, for each mesh, an uncertainty value associated with the respective first elevation value, at least one uncertainty value being calculated from a plurality of second terrain elevation values associated with said mesh and from a second terrain database having a second resolution higher than the first resolution.

Classes IPC  ?

• B64D 45/00 - Indicateurs ou dispositifs de protection d'aéronefs, non prévus ailleurs
• G06F 16/29 - Bases de données d’informations géographiques

Abrégé

The present invention relates to a device (16) for determining the attitude of a carrier comprising a GNSS receiver apt to receive GNSS signals from one or a plurality of antennas (14) arranged in known positions; the determination device (16) comprising: a movement generation module (22) configured for generating a movement of an apparent phase center according to a control law; a control module (23) configured for determining the control law; a determination module (24) configured for determining an absolute orientation of a vector of interest from at least one observable value supplied by the GNSS receiver (12) and from the control law, and for determining at least one component of the attitude of the carrier from the absolute orientation of the vector of interest.

Classes IPC  ?

• G01S 19/55 - Résolution de l'ambiguïté de la phase de la porteuse; Ambiguïté flottante; Procédé LAMBDA [compensation par les moindres carrés de la décorrélation de l'ambiguïté]
• G01S 19/36 - Récepteurs - Détails de construction ou détails de matériel ou de logiciel de la chaîne de traitement des signaux concernant l'étage d'entrée du récepteur

Abrégé

The avionic calculator is suitable for being carried on-board an aircraft and comprises a multi-core processor configured for executing avionic software applications. The processor includes at least one primary core for communicating with at least one avionic equipment distinct from the calculator, each avionic equipment being carried on-board the aircraft and belonging to an avionic domain; at least one secondary core for communicating with at least one electronic device external to the avionic domain; and a tertiary core for performing at least one filtering of a data message received from a respective device external to the avionic domain and intended for a respective avionic equipment of the avionic domain. Each avionic software application being executable by the at least one primary core or the at least one secondary core.

Classes IPC  ?

• B64D 45/00 - Indicateurs ou dispositifs de protection d'aéronefs, non prévus ailleurs
• G08G 5/00 - Systèmes de commande du trafic aérien

Abrégé

A device for modifying at least the direction of magnetization of a magnetic layer, the modifying device including a ferroelectric layer having a ferroelectric polarization, arranged on or under the magnetic layer so as to define a stack including at least the magnetic layer and the ferroelectric layer, a generator apt to inject an electric current into the stack along a direction parallel to the plane of the layers of the stack, and a modification unit apt to modify the ferroelectric polarization of the ferroelectric layer, for modifying, with the generator, the direction of magnetization of the magnetic layer.

Classes IPC  ?

• G11C 11/16 - Mémoires numériques caractérisées par l'utilisation d'éléments d'emmagasinage électriques ou magnétiques particuliers; Eléments d'emmagasinage correspondants utilisant des éléments magnétiques utilisant des éléments dans lesquels l'effet d'emmagasinage est basé sur l'effet de spin
• G11C 19/08 - Mémoires numériques dans lesquelles l'information est déplacée par échelons, p.ex. registres à décalage utilisant des éléments magnétiques utilisant des couches minces dans une structure plane
• H10B 61/00 - Dispositifs de mémoire magnétique, p.ex. dispositifs RAM magnéto-résistifs [MRAM]
• H10N 50/80 - Dispositifs galvanomagnétiques - Détails de structure
• H10N 52/00 - Dispositifs à effet Hall

Abrégé

The present invention relates to a method for determining positions by an optronic system in a scene, the scene comprising reference elements of known geographic coordinates, the optronic system comprising the following elements integrated into said optronic system: a. a digital imager, b. a memory wherein is stored, for each reference element of the scene, an indicator representative of said point associated with the geographic coordinates of said point, c. a display element that displays the indicators stored in the memory, d. a measurement module comprising at least one element chosen from among: a compass, a goniometer and a telemeter, e. a calculation unit, the method being implemented by the elements integrated in the optronic system.

Classes IPC  ?

• G01S 19/31 - Acquisition ou poursuite d'autres signaux en vue du positionnement
• G01C 17/12 - Comparaison d'une direction observée avec l'indication du nord par des moyens de visée, p.ex. pour les boussoles d'arpenteur
• G01C 17/38 - Test, étalonnage ou compensation des compas
• G06T 7/70 - Détermination de la position ou de l'orientation des objets ou des caméras

Abrégé

A method for selecting at least one satellite navigation service provider from a plurality of predetermined providers, the selection method being computer-implemented and comprising: a step for receiving a geographical position; a step of determining an indication relating to the authorization of use of at least one provider of the plurality of predetermined providers, the determining step being implemented by at least one artificial neural network (24) associated with said provider, an input variable of the artificial neural network (24) being the geographical position, an output variable of the artificial neural network (24) being said indication; a step for selecting at least one provider for satellite navigation of an aircraft.

Classes IPC  ?

• G08G 5/00 - Systèmes de commande du trafic aérien
• G01S 19/07 - Systèmes de positionnement par satellite à radiophares émettant des messages horodatés, p.ex. GPS [Système de positionnement global], GLONASS [Système global de navigation par satellite] ou GALILEO Éléments coopérants; Interaction ou communication entre les différents éléments coopérants ou entre les éléments coopérants et les récepteurs fournissant des données pour corriger les données de positionnement mesurées, p.ex. DGPS [GPS différentiel] ou corrections ionosphériques