Patents Assigned to Commissariat Energie Atomique
  • Publication number: 20130015858
    Abstract: A linear resonator of a high-frequency antenna suitable for emitting a radiofrequency energisation signal and for receiving a radiofrequency relaxation signal, the linear resonator includes a radiating element to emit a radiofrequency energisation signal and receive a radiofrequency relaxation signal. The resonator also includes: a balun circuit including a power-supply line and two coupling lines; a substrate made of a dielectric material, supporting the radiating element which contains the balun circuit; two contact points connecting the balun circuit to the radiating element, the contact points being formed by one of the ends of the coupling lines extending out of the substrate, the distance separating the two contact points being selected so as to ensure the impedance matching of the resonator; and a chip floorplan separating the coupling lines from the radiating element.
    Type: Application
    Filed: February 7, 2011
    Publication date: January 17, 2013
    Applicant: Commissariat a energie atomique et aux energies alternatives
    Inventors: Guillaume Ferrand, Michel Luong, Alain France
  • Publication number: 20090188899
    Abstract: A device for preventive treatment of an optical surface designed to be exposed to a laser flow including a thermal excitation source for providing a localized thermal annealing of a site of the optical surface) by means of a beam applied to the site. The device further includes a measuring member for measuring, in real time said during said localized thermal annealing, a quantity representing the temperature of the site of the optical surface) and at least one control member for increasing the linear power density of the beam applied to the site by the excitation source and, when the quantity reaches a predetermined set point, for gradually decreasing the linear power density.
    Type: Application
    Filed: January 26, 2007
    Publication date: July 30, 2009
    Applicant: COMMISSARIAT A A'ENERGIE ATOMIQUE
    Inventors: Philippe Bouchut, Jean-Guillaume Coutard, Annelise During
  • Patent number: 7511483
    Abstract: The device for sensing a RF field comprises a flux-receiving loop (1) including a circumferential path having a defined path width (d), the flux-receiving loop (1) having a portion (10) that transforms the magnetic flux flowing through the flux receiving loop (1) into a high magnetic field. The portion (10) comprises a constriction of the flux-receiving loop (1) that concentrates the current lines in the circumferential path to define a current-field transformer. At least one very low noise magnetic field transducer (12) is located at a very close distance from the constriction.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: March 31, 2009
    Assignee: Commissariat Energie Atomique
    Inventors: Myriam Pannetier, Claude Fermon
  • Publication number: 20080175339
    Abstract: A method for soft demapping of complex-valued symbols y(k) (k=1, 2, . . . , K) by calculation of a Logarithm of Likelihood Ratio (LogLR) such that: Log ? ? LR ? ( b I , q ) = ln ? ? ? ? ? S l , q ( 1 ) ? exp ( - 1 2 ? ? ? ? y ~ ? ( k ) - ? ? 2 ) ? ? ? ? S q , l ( 0 ) ? exp ( - 1 2 ? ? ? ? y ~ ? ( k ) - ? ? 2 ) wherein bI,q is the qth coded bit of an in-phase part of a transmitted signal, ? is an asymptotic Signal-to-Interference-plus-Noise Ratio, {tilde over (y)}(k) is a standardized symbol associated with y(k), ? is a reference symbol of QAM constellation associated with a M-QAM modulation, S(1)I,q and S(0)I,q are complex plane partitions that bring together, respectively, all reference symbols ? having a “1” at the position (I, q) and all reference symbols ? having a “0” at the position (I, q), a formula similar to LogLR being given for the bit bQ,p, pth coded bit of a quadrature part of the transmitted signal.
    Type: Application
    Filed: March 8, 2005
    Publication date: July 24, 2008
    Applicant: Commissariat A'energie Atomique
    Inventors: Dimitri Ktenas, Mathieu Bouvier Des Noes, Julien Barletta, Claire Guyon
  • Patent number: 7399981
    Abstract: The device comprises a device (2) for creating an essentially linear target (4) in an evacuated space where laser beams (1) are focused, the target being suitable for interacting with the focused laser beams (1) to emit a plasma emitting radiation in the extreme ultraviolet. A receiver device (3) receives the target (4) after it has interacted with the focused laser beams (1), and a collector device (110) collects the EUV radiation emitted by the target (4). The focusing elements (11) for focusing the laser beams on the target (4) are arranged in such a manner that the laser beams (1) are focused on the target (4) laterally, being situated in a common half-space relative to the target (4) and being inclined at a determined angle lying in the range about 60° to about 90° relative to a mean collection axis (6) perpendicular to the target (4).
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: July 15, 2008
    Assignees: Commissariat Energie Atomique, Alcatel Vacuum Technology France
    Inventors: Guy Cheymol, Philippe Cormont, Pierre-Yves Thro, Olivier Sublemontier, Martin Schmidt, Benoit Barthod
  • Publication number: 20080153890
    Abstract: Compounds of formula (I): wherein: R1 represents hydrogen, alkylcarbonyloxyalkyl or alkylcarbonylthioalkyl, R2 represents hydrogen, alkylcarbonyloxyalkyl, arylcarbonylthioalkyl or optionally substituted arylalkyl, R3 represents phenyl, which is optionally substituted, or indolyl, their isomers, and addition salts thereof with a pharmaceutically acceptable acid or base. Medicinal products containing the same which are useful in the treatment of arterial hypertension and complications thereof.
    Type: Application
    Filed: February 28, 2006
    Publication date: June 26, 2008
    Applicants: LES LABORATOIRES SERVER, COMMISSARIAT A 'ENERGIE ATOMIQUE
    Inventors: Vincent Dive, Nicolas Jullien, Elizabeth Scalbert, Athanasios Yiotakis, Anastasios Makaritis
  • Publication number: 20080061293
    Abstract: A semiconductor device including, on at least one surface of a crystalline semiconductor substrate, at least one first amorphous semiconductor region doped with a first type of conductivity. The semiconductor substrate includes, on the same at least one surface, at least one second amorphous semiconductor region doped with a second type of conductivity, opposite the first type of conductivity. The first amorphous semiconductor region, insulated for the second amorphous semiconductor region by at least ore dielectric region in the contact with the semiconductor substrate, and the second amorphous semiconductor region form an interdigitated structure.
    Type: Application
    Filed: January 18, 2006
    Publication date: March 13, 2008
    Applicant: COMMISSARIAT A'ENERGIE ATOMIQUE
    Inventors: Pierre Ribeyron, Claude Jaussaud
  • Patent number: 7342396
    Abstract: The device for sensing a magnetic field comprises a closed superconducting pick-up loop (1) having a path width (d) etched out of a single layer superconducting thin film and provided with a constriction (15) having a width (w) of narrow dimension smaller than the path width (d). The closed superconducting pick-up loop (1) constitutes a flux-to-field transformer (FFDT). At least one magnetoresistive element (2) is placed on top of or below the superconducting thin film, is isolated from the superconducting thin film by a thin insulating layer and is located so that an active part of the magnetoresistive element (2) is at the location of the constriction (15) and has a width equal to or less than the width of the constriction (15). The active part of the magnetoresistive element (2) is oriented so that the bias current in this active part is directed essentially along the constriction (15), orthogonally to the width of narrow dimension.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: March 11, 2008
    Assignees: Commissariat Energie Atomique, Elekta Neuromag Oy
    Inventors: Myriam Pannetier, Claude Fermon, Juha Simola
  • Publication number: 20070109210
    Abstract: An antenna includes a central loop and four adjacent coplanar eccentric loops. The central loop creates a magnetic field that is essentially perpendicular to the antenna. The centres of gravity of the four eccentric loops are essentially located on the periphery of the central loop and the eccentric loops are supplied in such a way as to predominantly create a rotating field in a plane parallel to the plane of the antenna. The eccentric loops can be associated in pairs of non-adjacent loops in such a way as to generate electromagnetic fields of opposite phases in the respective pair. In this way, the two loops of a pair can be connected such that the same current flows through them in opposite trigonometric directions. A radiofrequency generator can supply first and second excitation signals alternately on two outputs, respectively to the central loop and to the eccentric loops.
    Type: Application
    Filed: December 2, 2004
    Publication date: May 17, 2007
    Applicant: COMMISSARIAT A' ENERGIE ATOMIQUE
    Inventors: Sylvain Bacquet, Thierry Thomas, Elisabeth Crochon, Francois Vacherand
  • Publication number: 20050224707
    Abstract: Assembly of sensors formed as an imager with a detection brick including a photosensitive material, a brick for addressing and optionally processing signals from the sensor(s), an interconnection brick located between the detection brick and the addressing brick, this brick including connection pads, characterized in that the photosensitive material of the detection brick contains polymorphous silicon. The invention also relates to a method for the making of the latter.
    Type: Application
    Filed: June 25, 2003
    Publication date: October 13, 2005
    Applicant: Commissariat A A'Energie Atomique
    Inventors: Cyril Guedj, Jose Alvarez, Yvan Bonnassieux, Jean-Paul Kleider, Norbert Moussy, Pere Roca I Cabarrocas, Svetoslav Tchakarov