CENTRE NATIONAL D'ETUDES SPATIALES (C.N.E.S.) Patent applications |
Patent application number | Title | Published |
20150331182 | METHOD OF MANUFACTURING A RADIATION-RESISTANT OPTICAL FIBER, RADIATION-RESISTANT OPTICAL FIBER AND DEVICE INCLUDING SUCH A FIBER - A method of manufacturing a radiation-resistant optical fiber and a thus-obtained radiation-resistant optical fiber, the method includes the following steps:
| 11-19-2015 |
20150204597 | COOLING METHOD - A cooling method for cooling a device connected to a cryogenic tank via a main admission duct for feeding the device with cryogenic fluid once the device is cooled. In contrast, during cooling, a cryogenic fluid is introduced into the device via a cooling admission duct that is different from the main admission duct and that presents a flow section that is narrower than the flow section of the main admission duct. | 07-23-2015 |
20140298917 | BEARING TEST BENCH - The invention relates mainly to a test bench ( | 10-09-2014 |
20140232416 | SYSTEM AND METHOD FOR DETECTING AND LOCATING AN INSULATION FLAW IN A SOLAR GENERATOR ON A SPACE VEHICLE - A system and method for detecting and locating an insulation flaw in a solar generator on a spacecraft. The solar generator comprises a plurality of flaps. Each flap bears at least one solar cell that is connected to an electrical distribution network and electrically insulated from the flap. Each flap is connected, by a first load and by a second load, to a first electrical line and a second electrical line, respectively. The ratio of the impedances of the first load and of the second load of a flap being denoted as an impedance ratio of the flap. The solar generator comprises at least two flaps exhibiting different respective impedance ratios. The system comprises a component for evaluating the currents flowing in the first and second electrical lines, and a detector for detecting and locating an insulation flaw in the solar generator based on the evaluations of the currents. | 08-21-2014 |
20140174054 | FEED SYSTEM AND A METHOD OF SUPPRESSING THE POGO EFFECT - A rocket engine feed system, includes a feed circuit including a device for varying a gas volume in the feed circuit to suppress the POGO effect. A method of suppressing the POGO effect varies at least one hydraulic resonant frequency by varying a rate at which gas is injected into the feed circuit. | 06-26-2014 |
20140125521 | Method for Estimating the Direction of Arrival of Navigation Signals at a Receiver After Reflection by Walls in a Satellite Positioning System - A method includes estimating a position of a receiver, aboard a moving object, on the basis of the navigation signals emitted by satellites received by an antenna in an antenna array placed on the moving object, and using a three-dimensional geographical map to deduce, geometrically, on the basis of the position of the receiver and of a ray casting starting from the receiver, the number of paths reflected on walls of buildings present in a scene corresponding to an environment surrounding the receiver. The determined number of reflected paths is used to initialize an algorithm for estimating angles of arrival of multi-paths to deduce therefrom angles of arrival of the paths reflected on the walls before reaching the receiver. Optionally, the method can comprise making it possible to bound the distance information error due to a multi-path to render the estimation of direction of arrival of the signals more efficacious. | 05-08-2014 |
20130237778 | EXERCISE-ASSISTING DEVICE FOR FORECASTING THE CHANGE IN A PHYSIOLOGICAL PARAMETER AS A FUNCTION OF AN ITINERARY | 09-12-2013 |
20130207837 | Method for Determining a Confidence Indicator Relating to the Trajectory Followed by a Moving Object - A method includes estimating the position of the moving object on the basis of the reception of navigation signals emitted by a constellation of satellites, the navigation signals being modulated by a code and the receiver comprising a local replica of the code. The determination of the confidence indicator consists in estimating a speed of displacement of the receiver over an identified trajectory segment, deducing therefrom a Doppler delay function corresponding to the motion of the receiver, in correcting the auto-correlation function of the GNSS navigation signal received from each satellite of the constellation by means of the delay function, in comparing the corrected auto-correlation function with a theoretical auto-correlation function by applying a quadratic criterion corresponding to the confidence indicator. | 08-15-2013 |
20130070355 | Mirror Comprising Mechanical Means for Generating Primary Geometrical Aberrations - Optical devices can comprise a deformable mirror and a system for deforming said mirror. A deformation system comprises a first mechanical structure comprising a first surround, one or more electromechanical actuators attached to the first mechanical structure, a second mechanical structure comprising a substantially planar bottom and a second surround, both deformable, the bottom being attached to the first surround, the second surround being attached to the surround of the mirror, a rigid stud being attached to the bottom, substantially planar and centred on the bottom, the electromechanical actuator or actuators exerting predetermined forces or bending moments on the stud so as to generate a particular distribution of the bending moments on the surround of the mirror, deforming it according to a geometrical form representative or of one or more predetermined geometrical aberrations. | 03-21-2013 |
20120325973 | Large Rigid Deployable Structures and Method of Deploying and Locking Such Structures - The invention is situated in the field of telecommunication satellites. A deployable structure with which such a satellite may be equipped and a method of deploying the deployable structure is provided. The deployable structure includes: a set of primary panels, a set of secondary panels, primary articulation systems, each primary articulation system enabling a primary panel to be caused to pivot relative to another primary panel about a primary axis, the primary axes being substantially parallel to the primary panels, and secondary articulation systems, each secondary articulation system being associated with a secondary panel and enabling said panel to be caused to pivot relative to another panel about a secondary axis parallel to said panels, the deployable structure being configured in such a manner that, in a deployed configuration, the front surfaces of the panels form a substantially continuous overall surface. | 12-27-2012 |
20120286099 | DEVICE FOR DRAINING A TANK OF A SPACEBORNE SYSTEM | 11-15-2012 |
20120187695 | WIND-POWERED DEVICE FOR PRODUCING ELECTRICAL ENERGY - A wind-powered device for producing electrical energy includes an electric generator set ( | 07-26-2012 |
20110297784 | METHOD AND DEVICE FOR OPENING AN INFLATED WALL - A method and a device for deflating an inflated wall ( | 12-08-2011 |
20110220850 | Solutions Of Conductive Molecular Materials And Electromagnetic Absorbent Materials Produced From These Solutions - A stable solution of molecular material includes a first type of organic or organometallic molecule and a second type of organic or organometallic molecule or of ion. The first type has groups allowing electron delocalization. The solution further includes a third type of molecule that may be a surfactant or a solvent, capable of combining with the first or the second type of molecule or of ion), to form an adduct in solution whose presence prevents the precipitation of a compound formed by reaction between the first and second types of molecules, and makes it possible to obtain solutions whose concentration of the compound is greater than that governed by the precipitation constant of the compound in the absence of molecules of the third type. | 09-15-2011 |
20110206096 | METHOD AND SYSTEM FOR ACQUIRING AND REPATRIATING SATELLITE DATA - A method of acquiring and repatriating satellite data representative of a zone in space, termed the target zone, and an instrument for acquiring and repatriating satellite data including a plurality of satellites ( | 08-25-2011 |
20110206090 | Method for Optimizing an Acquisition of a Spread-Spectrum Signal from a Satellite by a Mobile Receiver - A method for optimizing the acquisition phase of a spread-spectrum signal by a mobile receiver includes searching for the path having the maximum energy for different frequency assumptions and among all the positive trend paths of said frequencies between two initial and final instants marking the beginning and the end of a coherent signal integration. | 08-25-2011 |
20110198447 | Actuation system for mobile elements with dynamically compensated and opposite relative motions - An actuation system for at least two mobile elements with dynamically compensated and opposite relative motions, without disturbance of the elements fixed in the same rigid structure as it, and resistant to exterior loadings, in the case of a translational motion of the mobile elements, includes, in a rigid structure, at least one linear actuator linked to a motion transmission device with four rigid arms, articulated at their ends and forming a lozenge, of which each of two first opposite vertices is linked to a corresponding mobile element, and whose other two opposite vertices have a single translational degree of freedom. | 08-18-2011 |
20110188548 | GRID OF GROUND STATIONS FOR RECEIVING AND STORING SATELLITE DATA - A device, referred to as a satellite grid, includes a plurality of reception and storage ground stations ( | 08-04-2011 |
20110187860 | COMPRESSION OF EARTH OBSERVATION SATELLITE IMAGES - A method of acquiring, compressing and transmitting satellite images, characterized in that in a systematic manner: an image is acquired ( | 08-04-2011 |
20110187352 | METHOD AND MACHINE FOR MULTIDIMENSIONAL TESTING OF AN ELECTRONIC DEVICE ON THE BASIS OF A MONODIRECTIONAL PROBE - In a method and a machine for testing an electronic device, in which the magnetic field emitted is measured by a monodirectional measurement probe, a first value of the component Bz of the magnetic field along axis ZZ′ is measured by the probe and recorded. The probe and the electronic device are displaced with respect to one another by relative pivoting about an axis XX′ orthogonal to axis ZZ′, according to an angular amplitude of less than 90° while maintaining distance d | 08-04-2011 |
20110177279 | DEVICE COMPRISING AT LEAST ONE BUILT-IN COMPOSITE MATERIAL HINGE HAVING AN UNINTERRUPTED CONNECTING REINFORCEMENT - A device includes at least one built-in flexible portion ( | 07-21-2011 |
20110130091 | DEVICE FOR POWER AMPLIFICATION OF A PAYLOAD OF A MULTIBEAM SATELLITE FOR BROADCASTING DATA - A device for power amplification of a payload of a multibeam satellite for broadcasting data, in which the circuits ( | 06-02-2011 |
20100309313 | INSTRUMENT FOR ACQUISITION AND DISTRIBUTION OF TERRESTRIAL OBSERVATION IMAGES WITH HIGH SPATIAL AND TEMPORAL RESOLUTION - An instrument for of observation images exhibits a high ground resolution and a high frequency of coverage of the Earth. Such an instrument includes a spatial images acquisition layer ( | 12-09-2010 |
20100301796 | Reciprocating actuator with closed loop servocontrol - A reciprocating actuator includes at least one element moving reciprocally relative to a rack, a device for driving the moving element in a driving direction, an element for returning the moving element in an opposite direction, at least one sensor for detecting the position of the moving element, and a servocontrol adapted to deliver, for each displacement cycle of the moving element in the driving direction, at least one correction signal (S | 12-02-2010 |
20100219919 | ELECTROMAGNETIC ACTUATOR WITH VARIABLE RELUCTANCE - The invention relates to an electromagnetic actuator with variable reluctance comprising a fixed ferromagnetic armature ( | 09-02-2010 |
20100134158 | CLOCK EXTRACTION DEVICE WITH DIGITAL PHASE LOCK, REQUIRING NO EXTERNAL CONTROL - A device for extracting a clock signal from a baseband serial signal, includes an injection-locked oscillator ( | 06-03-2010 |
20100027593 | METHOD AND DEVICE FOR RECEIVING A BOC MODULATION RADIO-NAVIGATION SIGNAL - Disclosed is a receiver and a method for receiving a radio-electric navigation signal modulated by a carrier at a frequency f | 02-04-2010 |
20090152402 | Satellite, method and a fleet of satellites for observing a celestial body - The invention concerns an observation satellite ( | 06-18-2009 |