Patents by Inventor Michel Gerard

Michel Gerard 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).

  • Patent number: 11959798
    Abstract: A method and a system for noise discrimination, the method comprising measuring noise levels of a noise source, measuring noise levels at a target location positioned at a distance from the noise source, measuring wind speed and direction in an area comprising the noise source and the target location, filtering transient short-duration events from the noise levels measured at the noise source, yielding filtered noise levels of the noise source, filtering transient short-duration events from the noise levels measured at the target location, yielding filtered noise levels of the target location, measuring a sound transfer function between the noise source and the target location using the filtered noise levels, comparing the measured sound transfer function with a reference transfer function; and when the difference between the measured transfer function and the reference transfer function is above a predetermined threshold, determining a probability that noise at the location originates from the noise source.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: April 16, 2024
    Assignee: SYSTÈMES DE CONTRÔLE ACTIF SOFT DB INC.
    Inventors: Anthony Gérard, Marc Poirier, Michel Pearson, Pierre-Claude Ostiguy
  • Patent number: 11938686
    Abstract: The present invention relates to a multilayer composition comprising a surface layer comprising a thermoplastic polymer A and a substrate layer comprising a polymeric composite material based thermoplastic (meth)acrylic matrix and a fibrous material as reinforcement. The multilayer composition is suitable for mechanical or structured parts or articles with a decorative surface aspect The present invention concerns also a manufacturing process for multilayer mechanical or structured parts or articles and three-dimensional mechanical or structured parts.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: March 26, 2024
    Assignee: Arkema France
    Inventors: Michel Glotin, Pierre Gerard, Renan Holzmann, Gilmar Da Costa Lima
  • Patent number: 11855414
    Abstract: The invention relates to a light source comprising a photonic wire having a single-mode core and adapted to support an optical mode which is degenerate in polarization, comprising an emitter of a pair of photons which are intended to be entangled in polarization. The photonic wire comprises a cladding which is asymmetrical in rotation and extends along a principal transverse axis. Furthermore, the light source comprises a correction device adapted to induce by electrostatic effect a mechanical deformation of the photonic wire in a plane parallel to the substrate, along a deformation axis forming an angle of inclination of between 0° and 90°, these values being exclusive, with respect to the principal transverse axis, the mechanical deformation leading to mechanical strains experienced by the emitter, thus improving the degree of entanglement of the photon pair.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: December 26, 2023
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Jean-Michel Gerard, Yoann Cure, Julien Claudon
  • Patent number: 11799056
    Abstract: A single-photon source including a monomode photonic wire wherein a single-photon emitter is located, the photonic wire being formed of two coaxial parts that are distinct and spaced from one another along the longitudinal axis, including a lower part resting in contact with a support substrate and including the single-photon emitter.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: October 24, 2023
    Assignee: Commissariat a l'Energie Atomique et aux Energies Alternatives
    Inventors: Jean-Michel Gerard, Julien Claudon
  • Publication number: 20230214680
    Abstract: An embodiment includes receiving an explanation request that includes an undesired output resulting from an input case of a hierarchical rule-based decision policy specified by an acyclic dependency graph, and further includes an alternative desired output from the hierarchical rule-based decision policy. The embodiment also includes computing a network of intermediate explanations for required ranges of respective decision nodes that achieve the desired output from the hierarchical rule-based decision policy. The embodiment also includes computing a user-facing explanation that includes a range constraint for achieving the desired output by aggregating the intermediate explanations. The embodiment also includes transmitting, as a response to the explanation request, an explanation for achieving the desired output from the hierarchical rule-based decision policy based on the user-facing explanation.
    Type: Application
    Filed: January 6, 2022
    Publication date: July 6, 2023
    Applicant: International Business Machines Corporation
    Inventors: Jean-Michel Gerard, Bernard Bernelas, Stephane Hillion, Ulrich Martin Junker, Thierry Kormann
  • Patent number: 11579383
    Abstract: A waveguide including a multimode optical fiber joined to a structure for concentrating the guided modes spatially. The concentrating structure exhibits an adiabatic variation in its transverse dimension dpc in the direction of its exit face, and its transverse dimension dpc has a value dpc,in at least equal to a value dfc of the transverse dimension dfc of the core of the multimode optical fiber at the second face thereof.
    Type: Grant
    Filed: September 14, 2021
    Date of Patent: February 14, 2023
    Assignee: COMMISSARIAT A'LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Jean-Michel Gerard
  • Publication number: 20220283426
    Abstract: The invention relates to an optoelectronic emitter with angular scanning, comprising an array of resonant cavities (20i) each extending longitudinally along a first axis (X), each designed to emit, via their emission face, an elementary light beam at a resonant frequency fr(i)) specific to each resonant cavity 20i, in response to a pulsed optical excitation signal designed to illuminate and to excite all of the resonant cavities 20i, simultaneously, and configured to exhibit a variation in resonant frequencies fr(i) from one resonant cavity 20i to the next, along a second axis (Y) of the array perpendicular to the first axis (X), the angular scanning of the optoelectronic emitter (1) then taking place in a plane perpendicular to that of the substrate (3) and containing the second axis (Y).
    Type: Application
    Filed: March 1, 2022
    Publication date: September 8, 2022
    Applicant: Commissariat à l'Energie Atomique et aux Energies Alternatives
    Inventor: Jean-Michel GERARD
  • Publication number: 20220082765
    Abstract: A waveguide including a multimode optical fiber joined to a structure for concentrating the guided modes spatially. The concentrating structure exhibits an adiabatic variation in its transverse dimension dpc in the direction of its exit face, and its transverse dimension dpc has a value dpc,in at least equal to a value dfc of the transverse dimension dfc of the core of the multimode optical fiber at the second face thereof.
    Type: Application
    Filed: September 14, 2021
    Publication date: March 17, 2022
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Jean-Michel GERARD
  • Publication number: 20210194213
    Abstract: The invention relates to a light source 1 comprising a photonic wire 20 having a single-mode core 21 and adapted to support an optical mode which is degenerate in polarization, comprising an emitter 24 of a pair of photons which are intended to be entangled in polarization. The photonic wire 20 comprises a cladding 25 which is asymmetrical in rotation and extends along a principal transverse axis Atg. Furthermore, the light source 1 comprises a correction device 50 adapted to induce by electrostatic effect a mechanical deformation of the photonic wire 20 in a plane parallel to the substrate 10, along a deformation axis Ad forming an angle of inclination of between 0° and 90°, these values being exclusive, with respect to the principal transverse axis Atg, the mechanical deformation leading to mechanical strains experienced by the emitter 24, thus improving the degree of entanglement of the photon pair.
    Type: Application
    Filed: December 22, 2020
    Publication date: June 24, 2021
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Jean-Michel GERARD, Yoann CURE, Julien CLAUDON
  • Publication number: 20210013702
    Abstract: A single-photon source including a monomode photonic wire wherein a single-photon emitter is located, the photonic wire being formed of two coaxial parts that are distinct and spaced from one another along the longitudinal axis, including a lower part resting in contact with a support substrate and including the single-photon emitter.
    Type: Application
    Filed: July 9, 2020
    Publication date: January 14, 2021
    Applicant: Commissariat A L'Energie Atomique et aux Energies Alternatives
    Inventors: Jean-Michel GERARD, Julien CLAUDON
  • Patent number: 9219180
    Abstract: The optoelectronic arrangement comprises a semiconductor nanowire intended to participate in the processing, notably in a reception and/or an emission, of a light concerned and a mirror reflecting the light concerned. The semiconductor nanowire comprises a first section and a second section, and the mirror surrounds, at least longitudinally, the first section of the semiconductor nanowire, said second section extending out of the mirror.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: December 22, 2015
    Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVE, CNRS
    Inventors: Jean-Michel Gerard, Julien Claudon, Philippe Lalanne
  • Patent number: 9112082
    Abstract: The present invention relates to a single photon source 1800 comprising a tapered nanowire 1802, where the nanowire 1802 is made of a semiconductor material, a first electrode 1828 and second electrode 1814, where the electrodes are electrically coupled to a photon emitter 1804 embedded in the nanowire 1802 and wherein the photon emitter 1804 is capable of emitting a single photon when an activation voltage is applied between the electrodes. In advantageous embodiments of the invention, the nanowire is encircled by air or vacuum, such that advantage can be taken of the resultant large ratio between a refractive index of the nanowire and the encircling material, air. Another advantageous feature might be that the first and second electrodes are optically transparent, such that they can be used as part of a reflective element or anti-reflective element.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: August 18, 2015
    Assignees: DANMARKS TEKNISKE UNIVERSITET, COMMISSARIAT A L ENERGIE ATOMIQUE
    Inventors: Niels Gregersen, Julien Claudon, Jean-Michel Gérard
  • Patent number: 9025630
    Abstract: A tuneable laser source includes a first confinement layer forming a Bragg reflector for a pump wave; an active layer made of non-linear semiconducting material, the refraction index of the active layer being greater than the refraction index of the first confinement layer; a second confinement layer, the refraction index of the second confinement layer being less than the refraction index of the active layer; a base with a first width; and a ribbon with a second width less than the first width. The second width is less than 10 ?m; the active layer includes at least one plane of quantum boxes capable of emitting a pump wave and the ribbon includes at least the part of the active layer including the quantum boxes plane and the second confinement layer.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: May 5, 2015
    Assignee: Commissariat a l'Energie Atomique et aux Energies Alternatives
    Inventors: Jean-Michel Gerard, Giuseppe Leo, Alessio Andronico, Sara Ducci
  • Publication number: 20140341245
    Abstract: A tuneable laser source includes a first confinement layer forming a Bragg reflector for a pump wave; an active layer made of non-linear semiconducting material, the refraction index of the active layer being greater than the refraction index of the first confinement layer; a second confinement layer, the refraction index of the second confinement layer being less than the refraction index of the active layer; a base with a first width; and a ribbon with a second width less than the first width. The second width is less than 10 ?m; the active layer includes at least one plane of quantum boxes capable of emitting a pump wave and the ribbon includes at least the part of the active layer including the quantum boxes plane and the second confinement layer.
    Type: Application
    Filed: May 16, 2014
    Publication date: November 20, 2014
    Inventors: Jean-Michel GERARD, Giuseppe LEO, Alessio ANDRONICO, Sara DUCCI
  • Patent number: 8885682
    Abstract: A laser device for emitting THz waves includes a heterostructure with a substantially cylindrical shape including a first layer in an optically nonlinear semiconductor material including emitters to emit in two whispering gallery modes that are confined in the first layer and enabling the generation within the first layer of radiation in an electromagnetic THz whispering gallery mode, a second and a third layer in a semiconductor material each presenting an optical index that is smaller than the index of the material used for the first layer and a metal layer situated at one end of the heterostructure. The heterostructure includes in its center a hole with a substantially cylindrical shape extending over the entire height of the heterostructure.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: November 11, 2014
    Assignee: Commissariat a l'energie atomique et aux energies alternatives
    Inventors: Jean-Michel Gerard, Julien Claudon, Giuseppe Leo, Alessio Andronico, Mathieu Munsch
  • Publication number: 20140326945
    Abstract: The optoelectronic arrangement comprises a semiconductor nanowire intended to participate in the processing, notably in a reception and/or an emission, of a light concerned and a mirror reflecting the light concerned. The semiconductor nanowire comprises a first section and a second section, and the mirror surrounds, at least longitudinally, the first section of the semiconductor nanowire, said second section extending out of the mirror.
    Type: Application
    Filed: May 2, 2014
    Publication date: November 6, 2014
    Applicants: Commissariat a L'energie Atomique et aux Energies, CNRS
    Inventors: Jean-Michel Gerard, Julien Claudon, Philippe Lalanne
  • Patent number: 8755414
    Abstract: A laser device having a wave emission within a frequency range of 0.5 to 5 THz, includes a semiconductor heterostructure having a cylindrical form with a circular cross-section and including: a first optically nonlinear semiconductor material layer including an emitting medium configured to emit at least two optical whispering gallery modes belonging to the near-infrared spectrum, the two whispering gallery modes being confined within the first layer and enabling the generation, within the first layer, of radiation within an electromagnetic whispering gallery mode having a frequency of 0.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: June 17, 2014
    Assignees: Commissariat a l'energie atomique et aux energies alternatives, Universite Paris Diderot—Paris 7
    Inventors: Julien Claudon, Jean-Michel Gérard, Vincent Berger, Giuseppe Leo, Alessio Andronico
  • Publication number: 20130287056
    Abstract: A laser device for emitting THz waves includes a heterostructure with a substantially cylindrical shape including a first layer in an optically nonlinear semiconductor material including emitters to emit in two whispering gallery modes that are confined in the first layer and enabling the generation within the first layer of radiation in an electromagnetic THz whispering gallery mode, a second and a third layer in a semiconductor material each presenting an optical index that is smaller than the index of the material used for the first layer and a metal layer situated at one end of the heterostructure. The heterostructure includes in its center a hole with a substantially cylindrical shape extending over the entire height of the heterostructure.
    Type: Application
    Filed: April 30, 2013
    Publication date: October 31, 2013
    Inventors: Jean-Michel Gerard, Julien Claudon, Giuseppe Leo, Alessio Andronico, Mathieu Munsch
  • Publication number: 20120161663
    Abstract: The present invention relates to a single photon source 1800 comprising a tapered nanowire 1802, where the nanowire 1802 is made of a semiconductor material, a first electrode 1828 and second electrode 1814, where the electrodes are electrically coupled to a photon emitter 1804 embedded in the nanowire 1802 and wherein the photon emitter 1804 is capable of emitting a single photon when an activation voltage is applied between the electrodes. In advantageous embodiments of the invention, the nanowire is encircled by air or vacuum, such that advantage can be taken of the resultant large ratio between a refractive index of the nanowire and the encircling material, air. Another advantageous feature might be that the first and second electrodes are optically transparent, such that they can be used as part of a reflective element or anti-reflective element.
    Type: Application
    Filed: July 23, 2010
    Publication date: June 28, 2012
    Applicants: Commissariat a L'Energie Atomique, Danmarks Tekniske Universitet
    Inventors: Niels Gregersen, Julien Claudon, Jean-Michel Gérard
  • Publication number: 20110188525
    Abstract: A laser device having a wave emission within a frequency range of 0.5 to 5 THz, includes a semiconductor heterostructure having a cylindrical form with a circular cross-section and including: a first optically nonlinear semiconductor material layer including an emitting medium configured to emit at least two optical whispering gallery modes belonging to the near-infrared spectrum, the two whispering gallery modes being confined within the first layer and enabling the generation, within the first layer, of radiation within an electromagnetic whispering gallery mode having a frequency of 0.
    Type: Application
    Filed: May 12, 2009
    Publication date: August 4, 2011
    Inventors: Julien Claudon, Jean-Michel Gérard, Vincent Berger, Giuseppe Leo, Alessio Andronico