| Sagem Defense Securite Patent applications |
| Patent application number | Title | Published |
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| 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 |
