Sagem Defense Securite Patent applications |
Patent application number | Title | Published |
20160122003 | FLY-BY-WIRE CONTROL SYSTEM FOR AIRCRAFT - The invention relates to a fly-by-wire system which comprises: three-stage piloting control, each stage including a control computer suitable for determining the positions of the stick, and a monitoring computer capable of verifying all the pre-determined positions of the stick; three-stage control-surface position calculation, each stage including a control computer suitable for calculating the control-surface positions from encoded positions of the stick, and a monitoring computer capable of verifying all the calculated control-surface positions; a single unidirectional communication link connecting the control computer of the first piloting control stage to the control computer of the first control-surface position calculation stage; a single unidirectional communication link connecting the control computer of the second piloting control stage to the control computer of the second control-surface position calculation stage; and a single unidirectional communication link connecting the control computer of the third piloting control stage to the control computer of the third control-surface position calculation stage. | 05-05-2016 |
20160111921 | Stator Comprising a Split Core and Method for Producing Such a Stator - An electric motor stator wherein an annular central part and a yoke surrounding the central part, the central part includes a bundle of laminations delimiting poles, wherein the bundle of laminations includes a plurality of first laminations each containing portions forming a pole part that are joined by an annular internal portion, second laminations each forming a pole part being mounted between the first laminations, the first laminations being spaced apart from one another at a predetermined spacing according to a required inductance. | 04-21-2016 |
20150309519 | REDUNDANT ELECTRIC CIRCUIT FOR CUTTING OFF THE POWER SUPPLY TO A PIECE OF EQUIPMENT - The invention concerns an electric circuit designed to control a power supply of a piece of electrical equipment, the electric circuit comprising a piece of electrical equipment and a source of supply voltage, and further having, as inputs, at least two discrete electrical signals of which the values condition the cutting off of the power supply to the piece of equipment, the circuit being characterised in that it further comprises:—a module for the redundant comparison of the discrete electric signals, comprising two branches for comparing said signals, parallel to one other, each branch being designed to supply, at the output, a control signal representative of each of the comparisons of said discrete electrical signals, and—a first module for cutting off the power supply to the piece of electrical equipment comprising two switches in series, each one being controlled respectively by one of the two control signals. The invention also concerns a system for acquiring, processing and communicating avionics data installed in an aircraft, comprising such an electric circuit. | 10-29-2015 |
20150304140 | METHOD FOR DEMODULATING AT LEAST ONE FRAME CONSISTING OF A SUCCESSION OF BITS CODED ACCORDING TO A MANCHESTER CODE - A method for demodulating at least one received frame is provided, where the frame includes of a succession of bits coded according to a Manchester code. The method includes the steps of: generating an interruption at least at each appearance of a rising and/or falling edge of the frame of coded bits; determining the time between each interruption from at least one first counter; reinitialising the demodulation of the frame as soon as one of the determined times is less than a first predetermined value or greater than a second predetermined value, the first and second predetermined values being dependent on the duration of a bit coded according to the code; and demodulating, for each determined time, if the determined time is greater than the first predetermined value and is less than the second predetermined value, at least one binary value of the frame from the determined time. | 10-22-2015 |
20150303738 | ENERGIZING HYDROGENERATOR - The invention relates to an on-board assembly for producing and storing electricity, including at least one hydrogenerator having an output line connected to at least one electrical battery having predetermined electrical load parameters. The hydrogenerator includes a load-bearing structure onto which a generator and an impeller, secured to a shaft for driving a rotor of the generator, are mounted. Said assembly is characterized in that the generator is an excitation generator, and the hydrogenerator includes a rectifier circuit, connecting the generator to the output line, and at least one circuit for exciting the generator. The excitation circuit is connected to an excitation current regulator controlled by a control unit set up so that the generator provides a load current consistent with the electrical load parameters on the basis of a resisting torque of the generator, said torque being predetermined so as to limit drag of the impeller. | 10-22-2015 |
20150303684 | Lightning Protection Component - A lightning protection component, with at least one main input capable of transmitting a lightning signal, at least one main output designed to be connected to a piece of equipment (T) to be protected from the lightning signal, a branched output designed to be connected to a dissipation circuit (M), a direct line connecting the main input to the main output, a bypass circuit that is mounted between the direct line and the branched output, and that is provided with at least one bypass switch having an open state in which the branched output is isolated from the direct line and a closed state in which the lightning signal is conducted from the direct line to the branched output. | 10-22-2015 |
20150241874 | CONFIGURABLE GENERIC ELECTRICAL FACILITY - Configurable generic electrical facility comprising processing means for implementing at least one configured function, the processing means comprising a processing unit, predefined functional blocks being implemented in the processing unit, the processing unit comprising a memory module designed to store configuration data, characterized in that the processing unit comprises routing means designed to connect the blocks and to organize data exchanges between the blocks according to interconnection data included in the configuration data stored in the memory module | 08-27-2015 |
20150241291 | PRESSURE SENSOR MADE FROM NANOGAUGES COUPLED TO A RESONATOR - A pressure sensor made of semiconductor material, the sensor comprising a box defining a housing under a secondary vacuum, at least one resonator received in the housing and suspended by flexible beams from at least one elastically deformable diaphragm closing the housing that also contains means for exciting the resonator in order to set the resonator into vibration and detector means for detecting a vibration frequency of the resonator. The detector means comprise at least a first suspended piezoresistive strain gauge having one end secured to one of the beams and one end secured to the diaphragm. The resonator and the first strain gauge are arranged to form zones of doping that are substantially identical in kind and in concentration. | 08-27-2015 |
20150233322 | ACTUATING DEVICE INCLUDING A PRIMARY LOCKING DEVICE - The invention relates to an actuating device comprising: —a first element ( | 08-20-2015 |
20150194803 | ELECTRICAL CIRCUIT FOR CUTTING OFF AN ELECTRIC POWER SUPPLY COMPRISING TRANSISTORS AND FUSES HAVING REDUNDANT LOGIC - The invention relates to an electric circuit suitable for cutting off an electric power supply of an electric device, the circuit including an electrical device and a supply voltage source of the electrical device, also having as inputs at least two discrete electrical signals, the values of which condition the cutting off of the electric power supply of the device, the electric circuit being characterised in that same includes: at least two modules for cutting of the electric power supply connected between the voltage source and the electrical device, each module tar cutting off the electric power supply being controlled in accordance with the values of the discrete electrical signals; and at least two modules for comparing discrete electrical signals in parallel, in which at least one of the modules for cutting off the electric power supply is controlled by the outputs of the modules for comparing discrete signals. | 07-09-2015 |
20150019070 | METHOD OF ANALYSING FLIGHT DATA - The invention relates to a method of analysing flight data recorded during N flights of at least one aircraft, by means of a flight data recorder of an aircraft, the data being grouped together by flight i in a signature vector of the flight X | 01-15-2015 |
20140337693 | LOW-COMPLEXITY DECODER FOR CONVOLUTIONAL CODING - The invention relates, according to the first form thereof, to a transmission error correction method, wherein at least two encoded binary series from a binary series that is to be transmitted and encoded by means of a convolutional code are received from a communication channel. Said method is characterized in that same comprises the following steps: producing, from two received encoded binary series, comparison binary series that coincide in the absence of transmission errors on the communication channel; comparing the comparison binary series and forming a detection binary series corresponding to the logic operation OU-exclusive of the two comparison binary series; and, in the event that the comparison binary series diverge from a divergence point, verifying if the series made up of P bits of the detection binary series from the divergence point corresponds to a listed transmission error and correcting, if necessary, the received encoded binary series. | 11-13-2014 |
20140321753 | SEARCH FOR A TARGET IN A MULTISPECTRAL IMAGE - A search for a target in a multispectral image is made more efficient and more user-friendly by combining a contrast optimization which is performed locally, with a presentation of a detection image which extends over the entire field of observation ( | 10-30-2014 |
20140310823 | METHOD OF SEQUENCING ON A MULTICORE PROCESSOR - The present invention relates to the field of real-time executives and their adaptation for secure execution on a multicore processor. There is defined, in addition to the level of certification intrinsic to each task, a level of security relating to the criticality of the execution of the instance of the task in its context and by a method of sequencing distributed over the various cores which make it possible to exchange, during each time interval, the information relating to the level of certification and to the level of security of each of the tasks getting ready to be launched. A decision is then taken on each core for launching the task envisaged as a function of the relevant information received from the other cores. | 10-16-2014 |
20140299947 | INERTIAL ANGULAR SENSOR OF BALANCED MEMS TYPE AND METHOD FOR BALANCING SUCH A SENSOR - An inertial angular sensor of MEMS type has a support of at least two masses which are mounted movably with respect to the support, at least one electrostatic actuator and at least one electrostatic detector. The masses are suspended in a frame itself connected by suspension means to the support. The actuator and the detector are designed to respectively produce and detect a vibration of the masses, and a method for balancing such a sensor provided with at least one load detector mounted between the frame and the support and with at least one electrostatic spring placed between the frame and one of the masses and slaved so as to ensure dynamic balancing of the sensor as a function of a measurement signal of the load sensor. | 10-09-2014 |
20140293661 | AC/DC CONVERTER WITH GALVANIC INSULATION AND SIGNAL CORRECTOR - An AC/DC converter comprising an input rectifier circuit connected in series with a primary winding ( | 10-02-2014 |
20140234089 | ACTUATING ASSEMBLY FOR A THRUST REVERSER OF AN AIRCRAFT ENGINE - An actuating assembly for an aircraft engine thrust reverser includes a drive shaft bearing a master pinion; a ball screw bearing a slave pinion engaging with the master pinion; a nut capable of translating over the ball screw as a result of the rotation of the ball screw; an extension tube rigidly secured to the nut and a lock assembly to block the rotation of the drive shaft in a so-called direct jet position of the reverser. The extension tube includes, at its free end, a member for connecting to a portion of the reverser prior to being actuated. In particular, the lock assembly includes an abutment secured to the drive shaft, and a cotter moveable between a locking position and an unlocking position. The reduction ratio (R) between the slave and master pinions is even. | 08-21-2014 |
20140233555 | Method for Managing Access to a Shared Communication Medium - The methods for managing access to a communication medium shared by a plurality of radio communication devices. The method of accessing a radio communication medium shared between a plurality of communication terminals. The method is based on a variant of the CSMA/CD access protocol. The method is based on monitoring of the medium and the emission of a token to request permission to emit. The terminals that receive this token then emit an acknowledgement intended to signal that the medium can be used, or a collision message if they receive a plurality of tokens simultaneously. In the latter case, the emitter retries its attempt to use the medium later on. | 08-21-2014 |
20140203685 | MULTIAXIS DRIVE DEVICE AND CONTROL INSTRUMENT FITTED WITH SUCH A DEVICE - An electric motor device includes a rotor, a stator, and electrical means for driving rotation of the rotor relative to the stator, the device being characterized in that the stator includes a substantially spherical cavity receiving the rotor, which is itself substantially spherical, and in that the electrical means are arranged to drive the rotor in rotation about at least two axes. A control instrument including such a motor device. | 07-24-2014 |
20140145737 | METHOD FOR CORRECTING THE VOLTAGE MEASURED ACROSS THE TERMINALS OF A SENSOR - A method for correcting measurement of a voltage across output terminals of a sensor, the sensor configured to be assimilated with an assembly including a generator and a series resistance, each of the output terminals being respectively connected to a pull up/down resistor. The method includes: evaluating the series resistance of the sensor, including measuring first and second voltages across the output terminals when first and second bias voltages are applied on each pull up/down resistor; evaluating the series resistance from the first and second voltages; and correcting, from the series resistance, a voltage measured across the output terminals of the sensor to infer therefrom a corresponding voltage generated by the generator. | 05-29-2014 |
20140145728 | METHOD AND SYSTEM FOR DETECTING A SHORT CIRCUIT AFFECTING A SENSOR - A method of detecting a short circuit affecting a sensor, at least one terminal of the sensor being connected to a bias resistor, includes: applying to at least one bias resistor at least one test bias voltage having at least one predefined characteristic that is different from a corresponding characteristic of a nominal bias voltage of the resistor; measuring a resulting differential voltage across the terminals of the sensor; and as a function of at least one characteristic of the measured differential voltage corresponding to the predefined characteristic of the test bias voltages, determining whether the sensor presents a short circuit. | 05-29-2014 |
20140082951 | ORIENTATION DEVICE INCLUDING MEANS FOR DETECTING THAT THE DEVICE IS LYING FLAT ON A SUPPORT - The invention relates to an orientation device comprising: a true north finder including a rate-gyroscope-type member, as well as sensors that can be used to measure the inclination of the device in relation to the horizontal, and associated calculation means for determining the orientation of the true north used on information provided by the rate gyroscope-type member and the sensors. According to the invention, the device also includes three feet that are used to support the device when it is placed on a support, at least one of said feet including a built-in sensor that changes state when the device is resting on a support by means of the feet, and means for automatically triggering the determination of the orientation of the north when the device is sufficiently horizontal and when the sensor indicates that it is placed on a support. | 03-27-2014 |
20140075507 | METHOD AND DEVICE FOR CONNECTING TO A HIGH SECURITY NETWORK - The present invention relates to the field of access to a high-security network, and more particularly to a device allowing secure access, for example for management and maintenance operations. | 03-13-2014 |
20140061389 | AIRCRAFT THROTTLE CONTROL DEVICE INCLUDING A CAM COUPLING - An aeroengine control device including a mount and having pivotally mounted thereon a code wheel together with a main lever and a secondary lever, both for turning the code wheel. Each lever is movable between a rest position and a maximum actuation position. The secondary lever is mounted to pivot on the main lever. Cam paths are mounted on the code wheel and on the mount in such a manner that the main lever can move the code wheel when the main lever is moved while the secondary lever is in the rest position. The secondary lever can move the code wheel when the secondary lever is moved while the main lever is in the rest position, with movement of either lever being prevented when the other lever is clearly away from its rest position. | 03-06-2014 |
20140029184 | ASSEMBLY FOR THE ELECTRONIC PROCESSING OF DATA WITH MUTUALIZED RESOURCES - Assembly for the electronic processing of data, comprising a central module and peripheral modules linked to the central module by electrical power supply and data links, the modules comprising: a processing unit, a memory, an input/output unit and an isolation of the power and data links; the central module furthermore comprising an electrical power supply unit for the peripheral modules, a common startup unit shared by the modules, and a star communication interface with the peripheral modules; each peripheral module furthermore comprising a serial link interface to the communication interface of the central module. | 01-30-2014 |
20140015519 | Flow Valve and Method of Manufacturing such a Valve - Flow valve comprising a casing ( | 01-16-2014 |
20130327949 | HIGH-RESOLUTION COMPACT GAMMA BURST DETECTOR - The invention relates to a plane detector for a gamma ray burst imager, the detector comprising a multilayer ceramic interconnection circuit between external connectors and a processor circuit fastened on a rear face of the circuit and a detection module fastened on a front face of the circuit. The detection module includes a support having a rear face fastened to the circuit and a front face on which sensors are fastened, and a high voltage electrical connection device having a through portion passing through the support and extending between two adjacent sensors in order to connect a connection pad of the circuit to a conductive grid that extends at least in part between the sensors and that is electrically connected to a free face of each sensor. | 12-12-2013 |
20130300263 | DEVICE FOR ACTUATING AN ITEM OF EQUIPMENT THAT CAN BE CONTROLLED AUTOMATICALLY OR MANUALLY, WITH DETECTION OF TAKE-UP OF MANUAL CONTROL - An actuator device for actuating equipment has an electric motor arranged to be connected to an autopilot device and connected by a drivetrain to an outlet shaft, itself designed to be connected to a control instrument, the drivetrain incorporating stepdown gearing dividing the drivetrain into a high-speed segment beside the motor and a low-speed segment beside the outlet shaft. The high-speed segment comprising a deactivator member for deactivating the autopilot device. The deactivator member having a first element secured to a first portion of the high-speed segment; a second element secured to a second portion of the high-speed segment and connected to the first element to allow the first element to be angularly offset relative to the second element when a torque for transmission reaches a predetermined threshold; and a detector member for detecting the angular offset. | 11-14-2013 |
20130285615 | MODULE FOR CONVERTING VOLTAGE BETWEEN A HIGH-VOLTAGE ELECTRICAL NETWORK OF AN AIRCRAFT AND AN ENERGY STORAGE ELEMENT - A module converting voltage between a high-voltage electrical network and at least one energy storage element an aircraft, the conversion module configured to reversibly convert between a DC voltage of the high-voltage electrical network and a DC voltage of the energy storage element, the DC voltage of the energy storage element floating relative to the DC voltage of the high-voltage electrical network and centered relative to the mass of the aircraft, the module including an input module including two filters each capable of receiving a DC voltage, a first arm and a second arm including switches, and a mechanism controlling the switches, operating per cycle of a switching period and capable of controlling at least one first switch and at least one second switch identically but offset by a half-period, whereby the first switch is open when the second switch is closed and vice versa. | 10-31-2013 |
20130269433 | VIBRATING GYROSCOPE AND CORRESPONDING MANUFACTURING PROCESS - The invention relates to a vibrating gyroscope ( | 10-17-2013 |
20130220065 | DEVICE FOR GENERATING RETURN FORCES FOR STICKS SUCH AS AIRCRAFT CONTROL STICKS | 08-29-2013 |
20130204565 | Calibration of Vibrating Gyroscope - In a gyroscopic system, a vibrating gyroscope is controlled in gyrometer mode in a control loop. The control loop corresponds to at least one current control for an operating parameter. In the control loop, a modified control to be applied to the gyrometer for said operating parameter is obtained ( | 08-08-2013 |
20130201643 | ELECTRONIC CARD, AN ELECTRONIC DEVICE INCLUDING SUCH A CARD, AND A METHOD OF PROTECTING AN ELECTRONICS CARD - An electronics card comprising a stack of printed circuit layers, each comprising an electrically insulating support having at least one conductive track extending thereon, and two electromagnetic shields extending respectively over a top face and over a bottom face of the stack, each shield comprising a grid and a plate that are superposed and electrically conductive, each extending over an electrically insulating support, and the conductive tracks being obtained by solid copper type etching. The invention also provides a device including such a card, and a method of protecting such a card of such a device against a lightning strike and against electromagnetic radiation. | 08-08-2013 |
20130192453 | SYSTEM FOR MOTORIZED DISPLACEMENT OF A MOBILE ELEMENT, METHOD OF DRIVING SUCH A SYSTEM AND METHOD OF TESTING SUCH A SYSTEM - The invention provides a motor-driven movement system for moving a movable element, the system comprising at least two actuators, each provided with means connecting it to the movable element and each dimensioned to be capable, on its own, of driving the movable element, a central control unit being connected to the two actuators in order to be capable of sending a position setpoint (Pos | 08-01-2013 |
20130187678 | METHOD OF DETECTING A FAULT IN A PERMANENT-MAGNET ALTERNATOR AND POWER SUPPLY DEVICE COMPRISING A DETECTOR MODULE - A method of detecting a failure of an alternator supplying three-phase electricity to a load, the method comprising the steps of determining a duty ratio for each of the phases at the output of the alternator, determining phase differences between the phases at the output of the alternator; and determining the presence of a failure as a function of the phase differences and as a function of a comparison of the duty ratios. A power supply device is also provided for implementing the method. | 07-25-2013 |
20130182238 | OPTOELECTRONIC DEVICE FOR OBSERVING AND/OR AIMING AT A SCENE, COMPRISING A RANGEFINDER, AND RELATED RANGE-FINDING METHOD - The invention concerns an opto-electronic device for observing and/or aiming at a scene comprising a target (C), comprising
| 07-18-2013 |
20130169478 | METHOD AND DEVICE FOR DETECTING AND EXCLUDING MULTIPLE SATELLITE FAILURES IN A GNSS SYSTEM - According to a first aspect, the invention relates to a method for checking the integrity of position information output by a satellite (GNSS) positioning device ( | 07-04-2013 |
20130142397 | Global and Dense Motion Estimation - The invention relates to a method which uses a series of images sensed by an image sensor including at least one preceding image and one following image to estimate movement. A first estimated movement is initially obtained by estimating the total movement from the preceding image to the following image. Next, an image compensated according to the first estimated movement is obtained from either one of the preceding and following images. Then, a second estimated movement is obtained by estimating dense movement between the compensated image and the other from the preceding and following images. Next, a residual value of global movement is determined. Finally, if the residual value is lower than a threshold value the second estimated movement is provided; otherwise, the preceding steps are repeated. The first estimated movement is determined by applying a binary image mask, and if during step /e/ the steps /a/ to /e/ are repeated, said steps are performed by applying a binary image mask updated according to the second estimated movement. | 06-06-2013 |
20130126717 | PASSIVE MECHANICAL ATHERMALIZATION DEVICE, AND RELATED OPTICAL SYSTEM - The invention relates to a passive mechanical athermalization device, comprising: a barrel ( | 05-23-2013 |
20130100262 | LOW-NOISE BIOCCULAR DIGITAL VISION DEVICE - A binocular digital vision device comprising a digital processor member ( | 04-25-2013 |
20130082149 | POWER SUPPLY AND CONTROL DEVICE FOR ACTUATORS, CORRESPONDING ACTUATION ASSEMBLY, AND AIRCRAFT COMPRISING SUCH A DEVICE - A power supply and control device for a plurality of electric actuators, the device comprising a control circuit and a power circuit, the power circuit having an inverter module connected to a switch module provided with connection means for connection to the actuators, the control circuit being connected to the switch module to operate it so as to connect the actuators sequentially to the inverter module, wherein the control circuit is arranged to control the inverter module and the switch module sequentially, and wherein the control circuit includes a monitoring module arranged to detect a malfunction of the device. An actuator assembly comprising a plurality of actuators and such a power supply and control device, and an aircraft including a plurality of actuators and such a power supply and control device of the above-specified type. | 04-04-2013 |
20130031978 | GYROSCOPIC MEASUREMENT BY A GYROSCOPE VIBRATING IN PRECESSION - Gyroscopic measurements are provided, by a system comprising a vibrating gyroscope, in the form of an output signal. The vibrating gyroscope provides an original measurement signal. A periodic control signal (CP) is applied to it over a time period, which signal is suitable: for rotating the geometric position of vibration in a first direction, during a part of the time period; and for rotating the geometric position of vibration in a second direction opposite to the first direction, during the other part of the time period; said control signal having a zero mean over said time period and exhibiting portions of signal at high frequency relative to the output signal; said output signal being based on a corrected signal emanating from the original measurement signal; in which the corrected signal is based on an identification of errors made during the signal portions at high frequency. | 02-07-2013 |
20130031948 | GYROSCOPIC MEASUREMENT IN A NAVIGATION SYSTEM - A gyroscopic system provides measurements on the basis of a vibrating gyroscope and provides a measurement signal. A periodic control signal is applied to it; in order to rotate the position of vibration, during a half period, according to a first speed profile, from a first up to a second position; and in order to rotate the position of vibration in an opposite direction during the other part of the period, according to a second speed profile, up to a third position. The measurements are based on corrected signals, each of said corrected signals, respectively for each of the vibrating gyroscopes, being obtained by; deducting the control signal from the measurement signal of the vibrating gyroscope; and taking account of errors identified on the basis of a comparison, of the measurements provided by the gyroscopic system as a function of the position of vibration with reference measurements. | 02-07-2013 |
20120297875 | VIBRATING GYROSCOPE AND TREATMENT PROCESS - The invention relates to a vibrating gyroscope ( | 11-29-2012 |
20120293286 | DEVICE FOR CONTROLLING AN ON-BOARD APPARATUS - A control device ( | 11-22-2012 |
20120227497 | GYROSCOPIC SENSOR - The invention relates to an gyroscopic sensor comprising a sensitive element designed to vibrate; an electrode carrier capable of carrying excitation/detection electrodes for exciting the sensitive element and for detecting the vibration of the sensitive element; and elements for supporting the electrode carrier. The supporting elements comprise a base made of a material having a density of less than 5 kg/dm | 09-13-2012 |
20120227493 | SOLDERING METHOD, GYROSCOPE AND SOLDERED PART - The invention relates to a method of soldering a conducting body to a substrate using an alloy chosen from either a tin-silver alloy or a tin-silver-copper alloy. The method comprises metallization of the substrate by depositing a tie layer on the substrate, depositing a diffusion barrier layer, or depositing a wetting layer comprising gold. The tie layer having any one of the chemical components chosen from chromium, titanium or titanium alloy. The diffusion barrier layer comprising a material chosen from platinum or palladium. | 09-13-2012 |
20120227490 | GYROSCOPIC SENSOR AND METHOD FOR MANUFACUTRING SUCH A SENSOR - The invention relates to a gyroscopic sensor comprising a sensitive element designed to vibrate; an electrode carrier capable of carrying electrodes for exciting the sensitive element and electrodes for detecting the vibration of the sensitive element; and support rods designed to support the electrode carrier, characterized in that the support rods have at least one bulged end. | 09-13-2012 |
20120216620 | RESONATOR INCLUDING A PASSIVATION LAYER, A VIBRATING SENSOR INCLUDING SUCH A RESONATOR, AND A METHOD OF MANUFACTURE - A resonator has a body of silicon-based material with at least one resonant part having at least one portion covered in an electrical conduction layer and at least one portion not covered in a conduction layer. The portion of the resonator not covered in a conduction layer is covered in a passivation layer in such a manner that, in the resonant part, the silicon-based material is completely covered by the conduction layer and by the passivation layer in combination. A vibrating sensor is also provided which includes such a resonator and a method of fabricating the resonator. | 08-30-2012 |
20120185205 | METHOD OF DETECTING PARASITIC MOVEMENTS WHILE ALIGNING AN INERTIAL UNIT - A method of detecting parasitic movements while aligning an inertial unit comprising a navigation unit connected to accelerometer sensors and gyros disposed in a predetermined frame of reference, the method comprising the steps of: integrating the acceleration signal in a frame of reference that is turning in accordance with the measurement of the gyros so as to obtain a raw position signal during a predetermined duration; during this predetermined duration recording the previously calculated position signals; from an error model, determining the parameters for modeling the raw position signal; calculating a residual signal between the modeling signal and the raw position signal; and identifying a parasitic movement when the residual signal overshoots a predetermined limit threshold. | 07-19-2012 |
20120170038 | Alignment Method for Inspecting a Mirror - An alignment method for controlling a mirror ( | 07-05-2012 |
20120130585 | Method and system for conserving operating data of a vehicle - A method of conserving operating data of a vehicle, the method including the steps of collecting the operating data and recording it progressively on board the vehicle, detecting an event, as from a detection, transmitting to at least one external receiver firstly at least some of the data that is being collected and as it is being collected, and secondly at least some of the stored data in a chronological order that is the reverse of the order in which it was recorded, and recording the data received by said external receiver. A conservation system for implementing the method is also provided. | 05-24-2012 |
20120038302 | ENGINE POWER SUPPLY CIRCUIT, AND FLIGHT CONTROL MEMBER PROVIDED WITH SUCH A CIRCUIT - A power supply circuit for an electric motor, the circuit comprising a plurality of inverter bridge arms, each having means for connection to a respective winding of the motor, each inverter bridge arm comprising in series a first insulated gate bipolar transistor and a junction field effect transistor that are connected to a controller, the circuit including a second insulated gate bipolar transistor connected in series with each field effect transistor and connected to the controller, and a damping resistor connected in parallel with the second bipolar transistor. An aircraft flight control member including a movable airfoil associated with at least one drive motor connected to such a power supply circuit. | 02-16-2012 |
20120036826 | ENGINE AND POD ASSEMBLY FOR AN AIRCRAFT, EQUIPPED WITH AN ANTI-ICING DEVICE - An engine and pod assembly for an aircraft includes a pod receiving an engine having an air intake. A rotating nose cone extends on the nose cone, as well as a device for limiting the formation of ice. The device includes means for creating a circumferential heterogeneity of ice on the nose cone. | 02-16-2012 |
20120031995 | ACTUATOR SYSTEM FOR A MOBILE PANEL OF A NACELLE OF A TURBOJET - The invention relates to a system for actuating a plurality of actuators ( | 02-09-2012 |
20120020030 | ELECTRICAL PACK WITH SEPARATE CONTROL AND POWER MODULES - An electrical housing includes power components grouped together in power modules and control components grouped together in a control module that is separate from the power modules. | 01-26-2012 |
20110285329 | Method and Device for Controlling the Rotation Speed of a Piezoelectric Motor Rotor - The present invention relates to a method of controlling the speed of rotation of a piezoelectric motor comprising at least one step of determining the variation of the speed of rotation as a function of the frequency of the excitation voltages of the piezoelectric motor for the actual temperature of the piezoelectric material. | 11-24-2011 |
20110277571 | Rotary-Linear Actuator with Optimised Rollers - According to the invention, an actuator device comprises rollers positioned and guided by spacer rings, and an assembly consisting of said rollers and said rings is provided between a male part and a female part. The rollers include synchronization pinions arranged at the ends thereof and include, on the threaded portion located between said pinions, annular grooves used as a journal for interfacing with open bearings in the form of notches provided on each spacer ring. | 11-17-2011 |
20110259078 | Calibration of Gyroscopic Systems with Vibratory Gyroscopes - In a gyroscopic system comprising at least four vibratory gyroscopes, a first measurement is provided by said vibratory gyroscope to be calibrated, and a second measurement is provided by a combination of the measurements from the other vibratory gyroscopes of the system. At the level of the vibratory gyroscope to be calibrated, an initial command is applied in order to command a change in position from a first vibration position (θ | 10-27-2011 |
20110254394 | Electric Motor for Roto-Linear Actuator - The electric motor consists of a rotor fitted with permanent magnets and comprises a stator the armature of which is made up of two parts: a stack of laminations forming round teeth and a solid tube-shaped field frame made of a material of the stainless steel kind enveloping the said stack of laminations. This armature constitutes a non-disengageable braking system that produces a damping effect in the face of possible movements of its rotor which are brought about and/or imposed by the members with which it collaborates. This motor can be used for driving a roto-linear actuator device with satellite rollers which is used as an actuator for manoeuvring the control surfaces of an aircraft, for example an aileron. | 10-20-2011 |
20110242338 | Stabilization of Captured Images - Images captured by an image capture device on a line of sight with an associated gyrometric system designed to supply gyrometric measurement data relating to the line of sight are stabilized. To this end, a first series of captured images is obtained. Then, a second series of stabilized images is obtained by applying, to the first series of images, an image stabilization based on gyrometric information. Then, a residual stabilization error is determined by applying a digital processing to the second series of stabilized images. Finally, the preceding three steps are repeated. On initialization, the gyrometric information corresponds to the measurement data supplied by the gyrometric system. Then, subsequently, the gyrometric information is obtained by correcting, on the basis of the residual error, the measurement data supplied by the gyrometric system. | 10-06-2011 |
20110234057 | Actuator With Load Cell - The actuator is of the roto-linear type and comprises a sleeve, a clevis and an operating rod which transmits the load. An electromagnetic sensor that measures and controls the load is placed inside the actuator, at the shoulder of the clevis. This sensor is associated with measurement means for processing the signals from the said winding, which winding are torus-shaped and arranged inside a field frame which is magnetically closed by an armature. | 09-29-2011 |
20110233609 | Method for Producing Infrared-Photosensitive Matrix Cells Adhering to an Optically Transparent Substrate by Molecular Adhesion, and Related Sensor - The invention relates to a method for producing an infrared radiation sensor, said sensor comprising an infrared photodiode array formed in a first material and a reading circuit formed in a second material, said method comprising the steps of: sticking, through molecular adhesion, a first material side surface onto an optically transparent crystalline material side surface having infrared radiation and a coefficient of thermal expansion similar to that of the second material, give or take 20%; thinning the body of the first material side surface so that the latter is less that 25 μm; producing infrared-sensitive photodiodes onto the thus-thinned first material side surface; depositing contact ball bearings onto the infrared photodiodes; and mounting the reading circuit onto the first material side surface through flip chip technology. | 09-29-2011 |
20110232359 | Calibration Of Vibratory Gyroscope - A gyroscopic system comprises at least four vibratory gyroscopes capable of changing vibration position. A first measurement is provided by a gyroscope to be calibrated and a second measurement is provided by a combination of the respective measurements from the other gyroscopes of the system, these first and second measurements being carried out along the same measurement axis. The determination ( | 09-29-2011 |
20110073785 | Radiation Collector - The invention relates to a radiation collector (10) designed to concentrate part of the radiation produced by a source on a spot (100). The collector includes a primary concave mirror (1) and a secondary convex mirror (2), each being rotationally symmetrical about an optical axis (X-X) of the collector. The primary mirror is configured to reflect the radiation collected with an angle of incidence (i) that is substantially constant between different points on said main mirror. Such a collector is particularly suitable for use with a discharge produced plasma source. | 03-31-2011 |
20100301838 | Method for Monitoring the Output of an Electromechanical Actuator of the Rotary-Linear Type - The invention relates to a method for monitoring the output of an electromechanical actuator of the rotary-linear type in order to detect a gradual seizing thereof, wherein said method comprises: measuring the intensity, representative of the motor torque, of the electrical current powering an induction winding of the actuator and the axial stress undergone by an actuator rod; calculating the ratio (axial stress undergone by an actuator rod/motor torque) representative of the global output of the actuator and of its present state; and generating an evaluation of the present condition of the actuator based on its present state and optionally on previous stored states and/or on outer parameters. | 12-02-2010 |
20100299476 | MASS MEMORY DEVICE AND STORAGE SYSTEM - A mass memory device is disclosed as including a memory module, a management module for physical management of the memory module, and a control module for controlling the management module. The management module is connected for communication with the control module by an MII-family bus. | 11-25-2010 |
20100277594 | Imaging System with Wavefront Modification - An imaging system ( | 11-04-2010 |
20100269616 | Rotolinear Actuator with Satellite Rollers - The invention relates to a rotolinear actuator that comprises: a central rod having an outer thread and surrounded by a ring with an inner thread, and threaded satellite rollers distributed between the central rod and the outer ring engaged with the threaded faces thereof. The actuator includes means for dispensing by capillarity a liquid lubricant at at least one contact area of at least one satellite roller with the central rod and with the outer ring, wherein the lubricant is economically dispensed by capillarity in an amount that is just sufficient and precisely at the contact locations of the interacting members, from a tank that may be sufficient for the lifetime of the actuator. | 10-28-2010 |
20100172456 | METHOD FOR ADJUSTING TRANSMISSION JITTER IN A RECEPTION TERMINAL - The invention aims to resolve the problems with jitter in a system for receiving real-time data in packets by a jitter regulation method based on the calculation of a curve representing the minimum filling rate of the buffer and by the triggering of a correction operation according to the change in this curve over time. This invention is applicable to all systems for receiving real-time data streams using a reception buffer. It is however particularly advantageous when the transmission jitter has a pseudoperiodic character. | 07-08-2010 |
20100161223 | METHOD OF DETERMINING A HEADING IN THE GEOGRAPHICAL NORTH DIRECTION BY MEANS OF AN INERTIAL UNIT - A method of determining a heading in the geographical North direction by means of an inertial sensor module having three rate gyro measurement axes and three accelerometer measurement axes, the method comprising the steps of: | 06-24-2010 |
20100133438 | Method for Maintenance of an Array of Bolometer-Type Detectors - A method for maintenance of an array of bolometer-type detectors comprises heating of certain detectors to a threshold temperature. The heating is performed by supplying resistive detection elements with electric currents, and the threshold temperature is determined for each detector as a function of a measurement made previously on said detector. Such method makes it possible to eliminate persistent images caused by radiation overexposure, or by damage to the thermoelectric properties of certain pixels appearing during the manufacture or ageing thereof. The method does not require the use of an oven or Peltier element, thus avoiding the risk for such heating component to damage irreversibly the reading and CMOS addressing circuits on which the detectors are hybridised or deposited. | 06-03-2010 |
20100083758 | Resonator for a vibratory sensor of an angular parameter - A resonator for an angular parameter sensor, the resonator comprising a bell of electrically-insulating material provided with a central stem and an electrically-conductive layer, the conductive layer comprising branches extending from a central portion of the bell to a peripheral edge of the bell, the number of said branches being a prime number not less than seven. | 04-08-2010 |
20100071439 | Method of Aligning an Axisymmetric Vibrating Sensor Inertial Navigation System and Corresponding Inertial Navigation System. - The method of aligning an inertial unit having an axially symmetrical vibrating sensor that generates vibration comprises the step of establishing the vibration in a position for which the sensor presents variation in drift error that is the smallest relative to variation in drift error for other positions of the vibration. | 03-25-2010 |
20090302159 | Aircraft Wing Including a Plurality of Dismountable Members - The invention relates to an aircraft wing including two members removably connected end to end by a coupling means including: a male coupling part with spaced opposed upper and lower faces, a first face being planar while the second face has a longitudinal relief ( | 12-10-2009 |
20090257041 | Illuminator for a Photolithography Device - The invention relates to an illuminator for a photolithography device. The invention comprises: a source ( | 10-15-2009 |
20090177939 | Method for Coding Biometric Data, Method for Controlling Identity and Devices for Carrying Out said Methods - The invention relates to a coding method consisting of the following steps: biometric data associated with an individual is obtained; a word, relating to an error correction code, selected in older to correct a quantity of errors in a relation to a statistical quantity of errors between two biometric measurements relating to the same individual, is generated, said word dissimulating information relating to said individual with the aid of a private function; and a combination is created between the biometric data thus obtained and the word thus generated. | 07-09-2009 |
20090158846 | Measurement by gyroscopic system - A gyroscopic system is disclosed comprising at least a vibrating gyroscope, a first means of angle measurement, designed to provide a first measurement of angle values according to a measurement axis; and—a second means of angle measurement, designed to provide a second measurement of angle values according to said measurement axis. First angle values through the first angle measurement means vibrating in a current vibration position and second angle values through the second angle measurement means are provided simultaneously; and from these second angle values corrected on the basis of a comparison of the first and second angle values are deduced. Then the vibration position of the first angle measurement means is changed from the current position to another vibration position. First angle values through the first angle measurement means and second angle values through the second angle measurement means are then provided simultaneously; and from these first angle values corrected on the basis of a comparison of the first and second angle values are deduced. | 06-25-2009 |
20090141290 | Optical Measuring Device Using Optical Triangulation - An optical triangulation measuring device includes an emmiter that emits two alternating light beams with different wavelengths along the same path; a beam splitter; an optical separator that directs the alternating split beams towards the surfaces from which they are reflected; an optical combiner that collects the beams and directs them along a path; optronic sensors that receive two light images and to deliver a signal indicating the position of the energy barycenter a time synchronizer for the two alternating beams and the two images on the optronic sensors; and a processor for processing the signals from the optronic sensors in order to supply information relating to the position and inclination of the surface. | 06-04-2009 |
20090123038 | OPTICAL BIOMETRIC ACQUISITION DEVICE WITH INFORMATION DISPLAY INTENDED FOR THE USER - The invention concerns a biometric capture optical device ( | 05-14-2009 |
20090106559 | Method of Identifying a User by Means of Modified Biometric Characteristics, and a Database for Implementing the Method - The present invention relates to a method of identifying a user, the method being implemented by means of a database containing personal data of users and containing for each user at least one unmodified biometric characteristic (E | 04-23-2009 |
20090049948 | Device for artificially restoring an opposing force for a device for remotely controlling aircraft control surfaces - A device for artificially restoring an opposing force for a device for remotely controlling an aircraft control surface, the device comprising: an actuator member ( | 02-26-2009 |
20090046331 | Contactless Biodetector - A biodetector permits formation of an image of the inner face of the hand or of a finger of a user when the hand or the finger ( | 02-19-2009 |
20080299814 | DEVICE FOR PROTECTING THE ENGAGEABLE ELEMENTS OF A CONNECTOR - The device for protecting a connector comprising two mutually engageable connector elements itself comprises for each connector element, a resilient tubular sleeve having one end configured to be fastened to a respective connector element by surrounding it in leaktight manner, and having a length at rest that is sufficient for it to be cantilevered out beyond one end of the connector element carrying the resilient sleeve, the cantilevered-out end including spring blades for flattening the sleeve and holding the corresponding lips pressed resiliently one against the other. | 12-04-2008 |
20080263232 | SELECTIVE CONNECTION DEVICE ALLOWING CONNECTION OF AT LEAST ONE PERIPHERAL TO A TARGET COMPUTER AND A SELECTIVE CONTROL SYSTEM COMPRISING SUCH A DEVICE - The present invention concerns a selective connection device allowing the connection of at least one peripheral to a target computer and a selective control system comprising such a device. It relates in particular to the field of devices for the selective connection of a control device composed of input/output peripherals to various target computers. More particularly, the invention concerns such a device affording security guarantees by preventing communication between the various target computers that may be controlled. | 10-23-2008 |
20080253557 | Method and Device for Carrying Out a Cryptographic Calculation - A cryptographic calculation is carried out in an electronic component according to a specific cryptographic algorithm including at least one specified non-linear operation on blocks of data of k bits, k being a whole number of more than 2. Several blocks of masked intermediate data of j bits (b?m1,c?m2, ??n) are generated from an initial block of data of k bits (a), j being a whole number that is smaller than k. Then a non-linear operation S is applied to at least one of the masked intermediate data blocks of j bits (??n) with the aid of a substitution table ( | 10-16-2008 |
20080253001 | Actuating Device Comprising Bimetal Disks - The invention relates to an actuating device comprising at least two coaxial bimetal disks and at least one axial strut arranged between the disks, the bimetal disks being mounted opposite each other and being deformable in opposite directions according to the thermal variations. The invention can be especially applied to the thermal compensation of an optical system. | 10-16-2008 |
20080252957 | Piezoelectric-Motor-Driven Two-Axis Orientation Turret - In the orientation device of a transmission assembly for orienting at least one beam in elevation and/or in bearing, said assembly pivots on a fork about an elevation axis and is driven about this axis by a motor supported by said fork, which fork can pivot on a base about a bearing axis, perpendicular to the elevation axis and driven about this axis by a second motor supported by said base, and at least one of the motors is a travelling-wave piezoelectric rotary motor. | 10-16-2008 |
20080229823 | Method For Temperature-Compensated Gyrometric Measurement and Gyrometric Measurement Device Using Same - The invention concerns gyrometric measurement compensated as a function of the instantaneous internal temperature of a mechanical resonator in a gyrometric measurement device comprising a loop controlling the amplitude of the resonator vibration and a gyrometric loop delivering a gyrometric signal (S); the gain control (P) of the loop varies as a monotonous function, preferably increasing and of the first order, of the internal temperature of the resonator in a given range of temperature; during a calibrating step, a correspondence is established and stored between the values of the gyrometric scaling factor (Fe) and the gyrometric bias (So) and the values of the gain control signal (P), that is F(P) and Q(P) respectively; in operation, the following operations are carried out: P→F(P), P→Q(P), and Ω′ | 09-25-2008 |
20080221794 | Hybrid Inertial Navigation System Based on A Kinematic Model - The invention concerns a method for improving determination of inertial navigation parameters ( | 09-11-2008 |