Patents Assigned to Commissariat à l'Energie Atomique et aux Energies Alternatives
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Publication number: 20230368839Abstract: A memory cell, includes first and second main terminals, an auxiliary terminal; M memristor(s) between the main terminals, M?1; M primary switch(es), each in parallel with a memristor; and a secondary switch between the second main terminal and the auxiliary terminal. It is configured for writing to at least one memristor by opening each primary switch in parallel with the at least one memristor, closing each other primary switch, closing the secondary switch and applying a corresponding programming voltage between the first main terminal and the auxiliary terminal; and for reading at least one memristor by opening each primary switch in parallel with the at least one memristor, closing each other possible primary switch, opening the secondary switch and measuring a corresponding electrical quantity between the main terminals.Type: ApplicationFiled: May 10, 2023Publication date: November 16, 2023Applicants: Commissariat à l'énergie atomique et aux énergies alternatives, Université d'Aix-Marseille, Centre national de la recherche scientifiqueInventors: Djohan BONNET, Tifenn HIRTZLIN, Elisa VIANELLO, Eduardo ESMANHOTTO, Jean-Michel PORTAL
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Patent number: 11815400Abstract: A detection system includes a readout substrate, at least one thermal detector associated with a reflector, and at least one compensation device including a compensation transducer in thermal contact with the readout substrate, arranged between the reflector and the readout substrate, and situated facing the reflector so as to be optically insensitive to the incident electromagnetic radiation.Type: GrantFiled: May 28, 2019Date of Patent: November 14, 2023Assignee: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVESInventors: Abdelkader Aliane, Alain Charpentier
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Publication number: 20230361684Abstract: Electrical energy converter and associated system for converting electrical energy The invention relates to an electrical energy converter including an inverter (10) for obtaining alternative electrical energy from a DC electrical energy source. The inverter includes a switch (52) having first and second conduction terminals for receiving an AC voltage, the electrical energy converter being suitable for supplying an output electrical energy to a load (8). Said converter includes a capacitive circuit (14) with variable and controllable capacitance, connected between the inverter (10) and the load (8), the control of a modification of said capacitance making it possible to obtain a modification of an electrical output parameter of the converter.Type: ApplicationFiled: April 28, 2023Publication date: November 9, 2023Applicant: Commissariat à l'énergie atomique et aux énergies alternativesInventors: Vincent MASSAVIE, Ghislain DESPESSE, Sébastien CARCOUET, Xavier MAYNARD
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Publication number: 20230348262Abstract: The present description concerns a method of manufacturing a microelectromechanical device, including the following successive steps: providing an SOI structure comprising a first semiconductor layer on an insulating layer; forming a second semiconductor layer by epitaxy on top of and in contact with the upper surface of the first semiconductor layer; transferring and bonding, by molecular bonding, a third semiconductor layer onto and in contact with the upper surface of the second semiconductor layer; and forming trenches vertically extending from the upper surface of the third semiconductor layer all the way to the upper surface of the insulating layer, said trenches laterally delimiting a mechanical element of the device.Type: ApplicationFiled: April 27, 2023Publication date: November 2, 2023Applicant: Commissariat à l'Énergie Atomique et aux Énergies AlternativesInventors: Audrey Berthelot, Philippe Robert
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Publication number: 20230345805Abstract: A method for manufacturing a multi-cation perovskite layer, including: a) supply of a substrate having a deposition face, b) deposition of a precursor solution including precursors comprising CsX, FAY, PbZ2, with X, Y and Z = I, Br, and an FAC1 additive, the molar ratio of cesium to lead is between approximately 4 % and 22%, the molar ratio of FAC1 relative to lead between 0.1% and 5%, and the perovskite layer has an empirical formula of the type CsxFA(1-x+w)Pb(IyBr(1-y))3 with x between 0.04 and 0.22, y between 0 and 1 and w between 0.001 and 0.05, c) sweeping of the wet film by an inert gas to crystallize the perovskite layer, and heat treatment so that the deposition face has a temperature ranging from about 25° C. to 80° C. C at least during step b).Type: ApplicationFiled: April 21, 2023Publication date: October 26, 2023Applicant: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVESInventors: Matthieu MANCEAU, Noëlla LEMAITRE, Stéphane CROS, Mathilde FIEVEZ
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Publication number: 20230343799Abstract: An image sensor including a plurality of avalanche photodiodes formed inside and on top of a semiconductor substrate of a first conductivity type having a front side and a back side, wherein: trenches vertically extend in the substrate from its front side to its back side, the trenches having, in top view, the shape of a continuous grid laterally delimiting a plurality of substrate islands, each island defining a pixel including a single individually-controllable avalanche photodiode, and including a doped area of collection of an avalanche signal of the pixel photodiode the lateral walls of the trenches are coated with a first semiconductor layer having a conductivity type opposite to that of the collection area, and a conductive region extends in the trenches, the conductive region being in contact with the surface of the first semiconductor layer opposite to the substrate.Type: ApplicationFiled: June 30, 2023Publication date: October 26, 2023Applicant: Commissariat à l'Énergie Atomique et aux Énergies AlternativesInventors: Norbert Moussy, Cédric Giroud-Garampon, Olivier Saxod
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Patent number: 11800820Abstract: A method for programming a phase change memory including a first layer of a phase change material capable of switching between a crystalline and an amorphous state and vice versa, the method including applying a programming current through the first layer so that an evolution of the areal density of this current as a function of time t decreases from a first level, between a first time and a second time, following a first evolution in time respecting, or being close to J 0 ? ( t ) = K t where K is a constant.Type: GrantFiled: November 22, 2021Date of Patent: October 24, 2023Assignee: Commissariat à l'Énergie Atomique et aux Énergies AlternativesInventors: Gabriele Navarro, Anna-Lisa Serra, Guillaume Bourgeois, Chiara Sabbione
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Patent number: 11799469Abstract: The present disclosure concerns a method and a circuit for controlling first and second switches electrically in series, wherein one or a plurality of crossings of a voltage threshold by a voltage across the first switch cause a conductive state of the second switch.Type: GrantFiled: September 15, 2021Date of Patent: October 24, 2023Assignee: Commissariat à l'Energie Atomique et aux Energies AlternativesInventors: Léo Sterna, Pierre Perichon
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Patent number: 11792547Abstract: An event-driven sensor including: a pixel array; a column readout circuit coupled to column output lines of the pixel array, the column readout circuit including a plurality of column register cells; and a row readout circuit including a readout memory having a storage location corresponding to each pixel of the pixel array, the readout memory having sets of one or more row lines for writing to rows of memory locations of the readout memory, wherein each row output line of the pixel array is coupled, via a corresponding row line control circuit, to a corresponding one of the sets of one or more row lines of the readout memory.Type: GrantFiled: July 20, 2022Date of Patent: October 17, 2023Assignee: Commissariat à l'Énergie Atomique et aux Énergies AlternativesInventor: Josep Segura Puchades
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Patent number: 11782527Abstract: The invention relates to a system for recording a track comprising: a utensil comprising a tip and equipped with a magnetic object; a device for locating the magnetic object configured to determine an estimated reference position on a writing surface; and a matrix-array touch sensor configured to define a set of M pixels, among N pixels, at least partially encircling the estimated reference position, and to detect the contact of the tip on the writing surface on the basis of the electrical signals generated by said set of M pixels.Type: GrantFiled: September 30, 2020Date of Patent: October 10, 2023Assignees: ADVANCED MAGNETIC INTERACTION, AMI, COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Saifeddine Aloui, Franck Vial, Sebastien Brulais, Laure Peris Y Saborit, Jean-Marie Dupre La Tour, Tristan Hautson, Myrna Jaillet-Casillas, Simon Thomas
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Patent number: 11784304Abstract: Positive electrode material for a lithium battery comprises a lithiated metal layered oxide comprising metal elements arranged in layers of metal cations and lithium arranged in interlayers of lithium cations and, in part, in the layers of metal cations, the oxide has a stack arrangement 02 and corresponds to the formula (I): Li(a+b)NicMndCoeMfOg (I) wherein: *a represents the proportion of lithium in the interlayers, 0<a<1; *b represents the proportion of lithium in the layers of metal cations, 0<b<?; *c, d, e and f are between 0 and 1 and b+c+d+e+f=I; *1.9<g<2.1; *when f?0, M is one or more of Al, Fe, Ti, Cr, V, Cu, Mg, Zn, Na, K, Ca, Sc; wherein the oxide is coated with an oxide of the formula (II): MnhM?iO2 (M) wherein: *0<h?1.5, preferably h=1; *M? is one or more of Ni, Al, Fe, Ti, Cr, V, Cu, Mg, Zn, Na, K, Ca, Sc; *0?i?1.5.Type: GrantFiled: January 18, 2018Date of Patent: October 10, 2023Assignee: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVESInventors: David Peralta, Carole Bourbon, Jean-François Colin
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Patent number: 11782045Abstract: A method for assessing the mass concentration of uranium in a sample of uranium-bearing material by gamma spectrometry, includes a) acquiring (200) an energy spectrum of gamma radiation from the sample using a scintillator detector, the energy spectrum (100) comprising at least a first energy band (110) between 87 keV and 110 keV, and a second energy band (120) between 560 keV and 660 keV, the second energy band comprising at least one energy line (130) at 609 keV from 214Bi, b) calculating (210) an initial mass concentration of uranium (CmU0) using the energy spectrum, c) measuring (220) a parameter representative of the height of the sample and a parameter representative of the density of the sample, d) calculating (230) a corrective coefficient (K), and e) calculating (240) a corrected mass concentration of uranium (CmU) using the initial mass concentration of uranium (CmU0) and the corrective coefficient (K).Type: GrantFiled: November 13, 2019Date of Patent: October 10, 2023Assignees: ORANO MINING, COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVESInventors: Thomas Marchais, Bertrand Perot, Cédric Carasco, Jean-Luc Ma, Hervé Toubon, Romain Goupillou
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Patent number: 11780008Abstract: A backup cooling device intended for a hot isostatic press, the press comprising a compression chamber, a tank containing a gas and a first gas flow circuit for the gas to flow between the gas tank and the compression chamber. The backup cooling device comprises a tank containing a coolant equipped with a first heat exchanger for exchanging heat between the gas and the coolant, a coolant flow circuit forming a closed loop including the tank and a cooling circuit arranged around the compression chamber, a second gas flow circuit for the gas, extending from a connecting valve connecting it to the first gas flow circuit, and including the first heat exchanger, a control module (CMD) suitable for controlling the connecting valve so as to open it in the event of a malfunction of the hot isostatic press, and otherwise to close it.Type: GrantFiled: September 14, 2018Date of Patent: October 10, 2023Assignee: COMMISSARIAT Á L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVESInventors: Alain Jaouen, Denis Autissier
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Publication number: 20230317329Abstract: A method for manufacturing a magnet from recycled magnets comprising the following steps of: providing: a 1st powder comprising grains of a magnetic phase TR2Fe14B, metal-based compounds and a grain boundary phase rich in rare earth, said 1st powder being free of heavy rare earth, a 2nd powder obtained from recycled magnets comprising heavy rare earths, the 2nd powder is subjected to a hydrogenation-disproportionation treatment, the 1st powder is mixed with the 2nd powder obtained at the end of step b), the mixture obtained at the end of step c) is subjected to a compacting step so as to obtain a compacted part, the compacted part obtained at the end of step d) is subjected to a sintering step so as to obtain a magnet.Type: ApplicationFiled: March 16, 2023Publication date: October 5, 2023Applicant: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVESInventors: Cyril RADO, Sorana LUCA
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Patent number: 11771918Abstract: An optical stimulation system includes a light source configured to produce light for optical stimulation; a light monitor; an optical lead coupled, or coupleable, to the light source and the light monitor; and a control module coupled, or coupleable, to the light source and the light monitor. The control module includes a memory, and a processor coupled to the memory and configured for receiving a request for verification or measurement of a light output value; in response to the request, receiving, from the light monitor, a measurement of light generated by the light source; and, based on the measurement, reporting a response to the request.Type: GrantFiled: October 12, 2022Date of Patent: October 3, 2023Assignees: BOSTON SCIENTIFIC NEUROMODULATION CORPORATION, COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES (“CEA”)Inventors: Dennis Allen Vansickle, Adam Thomas Featherstone, John Rivera, Claude Chabrol, Sarah Renault, Adrien Poizat, Michael A. Moffitt
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Patent number: 11774359Abstract: The present disclosure concerns a smoke detector (1) including: a detection chamber, a baffle system surrounding the chamber enabling to isolate the chamber from outer light and enabling air to flow from the outside to the inside of the chamber, and a mechanical actuator capable of cleaning, in case of an obstruction, intervals between the elements.Type: GrantFiled: September 28, 2020Date of Patent: October 3, 2023Assignee: Commissariat à l'Energie Atomique et aux Energies AlternativesInventor: Roland Pelisson
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Patent number: 11777622Abstract: The present description concerns a method of processing by a radio transmitter/receiver (12) of a radio signal (SR) comprising a telecommunications signal disturbed by pulses of a radar signal, the method comprising the steps of: estimating the instantaneous power of the pulses, estimating the ratio of the average power of the telecommunications signal to the instantaneous power of the radar pulses, and modifying the radio signal at the locations of the radar pulses when said ratio is smaller than a threshold.Type: GrantFiled: December 16, 2021Date of Patent: October 3, 2023Assignee: Commissariat à l'Energie Atomique et aux Energies AlternativesInventors: Patrick Rosson, Jean-Baptiste Dore, Benoît Miscopein, David Demmer
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Patent number: 11778579Abstract: The present disclosure concerns a method of estimation and correction, at the level of a base station, of a frequency drift (?F1, ?Fi, ?FN) between signals transmitted by a plurality of antenna systems (306_1, 306_i, 306_N) spatially distributed around a computing unit of the base station (304) and signals received by a radio device (310).Type: GrantFiled: May 16, 2022Date of Patent: October 3, 2023Assignee: Commissariat à l'Energie Atomique et aux Energies AlternativesInventor: David Demmer
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Patent number: 11774347Abstract: A photoacoustic detecting device to be applied, via a contact face, against a medium to be analyzed, is disclosed. The device includes: a hollow cavity that opens onto a contact aperture, the contact aperture being produced in the contact face; a pulsed or amplitude-modulated light source configured to emit, when activated, an incident light beam, in an emission spectral band, through the cavity, to the contact aperture; and an acoustic transducer connected to the cavity and configured to detect a photoacoustic wave extending through the cavity. Under the effect of illuminating the medium by the incident light beam, the acoustic transducer detects an acoustic wave produced by heating the medium. The cavity includes a membrane extending through the cavity, facing the contact face. The membrane is bounded by a lower face and an upper face. The membrane includes through-apertures produced between the lower face and the upper face.Type: GrantFiled: December 23, 2021Date of Patent: October 3, 2023Assignee: Commissariat à l'Energie Atomique et aux Energies AlternativesInventors: Jean-Guillaume Coutard, Alain Gliere, Maryse Fournier
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Patent number: 11768165Abstract: A non-destructive method for characterizing and monitoring the homogeneity of metal parts which are being manufactured by sintering and comprise several distinct zones. Laser radiation is applied successively to each zone and each sintered zone is analyzed simultaneously in real time by lock-in laser-active radiometry.Type: GrantFiled: December 18, 2018Date of Patent: September 26, 2023Assignee: COMMISSARIAT Á L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVESInventors: Hicham Maskrot, Alexandre Semerok