Patents by Inventor Laurent Duraffourg

Laurent Duraffourg has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20100219893
    Abstract: The device resonant comprises a plurality of synchronized oscillators. Each oscillator comprises a resonator which comprises detection means providing detection signals representative of oscillation of the resonator to a feedback loop connected to an excitation input of the resonator. The detection signals control the conductivity of the feedback loop of the oscillator. The excitation inputs of all the resonators are connected to a common point which constitutes the output of the resonant device. A capacitive load is connected between said common point and a reference voltage.
    Type: Application
    Filed: February 23, 2010
    Publication date: September 2, 2010
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE
    Inventors: Laurent DURAFFOURG, Philippe ANDREUCCI, Eric COLINET, Sébastien HENTZ, Eric OLLIER
  • Publication number: 20100219489
    Abstract: The invention concerns a sensor device, of nanowire type, comprising at least one nanowire comprising a first conductive region (2) and a second region (4) in insulator material, this second region not occupying the entire thickness of the nanowire, and a current being able to circulate in the nanowire from one of its ends to the other.
    Type: Application
    Filed: February 26, 2010
    Publication date: September 2, 2010
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE
    Inventors: Laurent Duraffourg, Philippe Andreucci, Thomas Ernst, Sebastien Hentz
  • Publication number: 20100219895
    Abstract: The resonant device comprises an electromechanical resonator of nanometric or micrometric size that comprises a mobile element and a fixed element. Detection means provide detection signals representative of movement of the mobile element with respect to the fixed element to a feedback loop that is connected to an excitation input of the resonator. The resonator is formed on the same substrate as the detection means and feedback loop. The feedback loop comprises at most first and second transistors connected in series between a reference voltage and the excitation terminal. A capacitive load is connected between the excitation terminal and reference voltage. The detection signals control the conductivity of the first transistor.
    Type: Application
    Filed: February 23, 2010
    Publication date: September 2, 2010
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE
    Inventors: Laurent DURAFFOURG, Philippe ANDREUCCI, Eric COLINET, Sébastien HENTZ, Eric OLLIER
  • Publication number: 20100219897
    Abstract: The oscillator comprises at least a first series of a multiple of four sub-assemblies each of which comprises an excitation terminal and an output terminal. The sub-assemblies are arranged in series in a closed loop. The output terminal of each sub-assembly is connected to the excitation terminal of the following sub-assembly. The output terminal of one of the sub-assemblies constitutes the output terminal of the oscillator. Each sub-assembly comprises excitation means and a nanowire which constitutes the electromechanical resonator and the piezoresistive detection means of movement of the resonator. A first terminal of the nanowire is connected to a first supply voltage. The second terminal of the nanowire constitutes the output terminal of the sub-assembly which is grounded via a corresponding resistive circuit. An input terminal of the excitation means constitutes the excitation terminal of the sub-assembly.
    Type: Application
    Filed: February 23, 2010
    Publication date: September 2, 2010
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE
    Inventors: Eric COLINET, Laurent DURAFFOURG
  • Publication number: 20090321793
    Abstract: The invention relates to a detection device using at least one transistor (2) with a vertical channel, comprising a mechanical structure (14), free to move relative to the transistor, in a plane containing the transistor drain (10), source (8) and channel (12).
    Type: Application
    Filed: May 16, 2007
    Publication date: December 31, 2009
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE
    Inventors: Eric Ollier, Laurent Duraffourg, Philippe Andreucci
  • Publication number: 20090289747
    Abstract: A nano-resonator device comprising at least one fixed element and at least one mobile element with respect to the fixed element, first electromagnetic means, integrated or fixed on the fixed element, and second electromagnetic means, integrated or fixed on the mobile element, to generate an oscillating movement of the mobile element.
    Type: Application
    Filed: March 27, 2009
    Publication date: November 26, 2009
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE
    Inventors: Laurent Duraffourg, Philippe Andreucci, Lise Bilhaut, Bernard Viala
  • Publication number: 20090243772
    Abstract: A nanoswitch device comprising: at least one stationary element (52) and at least one element (50) which is at least partially made of a magnetic material and which is movable with respect to the stationary element, means of activating the movable element, comprising: and at least one first and one second magnetic means (30, 30?, 40, 40?) each having a planar shape, defining a first and a second plane, in order to generate remanent magnetization in a direction contained within said first plane or perpendicular to this first plane, means (36, 36?) for reversing the direction of the remanent magnetization of at least one of said first and second magnetic means.
    Type: Application
    Filed: March 27, 2009
    Publication date: October 1, 2009
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE
    Inventors: Lise Bilhaut, Philippe Andreucci, Laurent Duraffourg, Bernard Viala
  • Patent number: 7266304
    Abstract: An optical binary code transmission system comprising a sender comprising: means for generating a light beam; phase-shifter means; attenuator means whereby the intensity of the lateral modes is sufficiently low for there to exist at the most only one photon in the lateral modes. The phase-shifter means of the sender impose a phase-shift that is chosen randomly to be equal either to 0 or to ?/2 for a first bit value or either to ? or to 3?/2 for a second bit value, and the receiver comprising means for detecting the presence of a photon in the first lateral mode and means for detecting the presence of a photon in the second lateral mode, a first bit value being detected if the presence of a photon is detected in the first lateral mode and a second bit value being detected if the presence of a photon is detected in the second lateral mode.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: September 4, 2007
    Assignee: France Telecom
    Inventors: Laurent Duraffourg, Jean-Marc Merolla, Jean-Pierre Goedgebuer
  • Publication number: 20040086280
    Abstract: An optical binary code transmission system comprising a sender comprising: means for generating a light beam; phase-shifter means; attenuator means whereby the intensity of the lateral modes is sufficiently low for there to exist at the most only one photon in the lateral modes. The phase-shifter means of the sender impose a phase-shift that is chosen randomly to be equal either to 0 or to &pgr;/2 for a first bit value or either to &pgr;/or to 3&pgr;/2 for a second bit value, and the receiver comprising means for detecting the presence of a photon in the first lateral mode and means for detecting the presence of a photon in the second lateral mode, a first bit value being detected if the presence of a photon is detected in the first lateral mode and a second bit value being detected if the presence of a photon is detected in the second lateral mode.
    Type: Application
    Filed: December 12, 2003
    Publication date: May 6, 2004
    Inventors: Laurent Duraffourg, Jean-Marc Merolla, Jean-Pierre Goedgebuer