Patents by Inventor Béatrice VERLHAC

Béatrice VERLHAC 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).

  • System and method for providing the amplitude and phase delay of a sinusoidal signal
    Patent number: 11307230
    Abstract: Disclosed is a system and method that provide an amplitude value and a phase delay value which relate to a sinusoidal signal to be measured. For this purpose, phase values of a reference signal, at which the signal to be measured exceeds or falls below the reference signal, are collected and transmitted to a computation unit. The computation unit determines the amplitude and delay values from the collected phase values. The system can be implemented in a cost-effective manner, in particular using an ASIC circuit or an FPGA circuit.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: April 19, 2022
    Assignee: OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AÉROSPATIALES
    Inventors: Jean Guerard, Béatrice Verlhac, Pierre Lavenus, Raphaël Levy
  • Electrical measurement circuit, gas detector and method for measuring a gas concentration
    Patent number: 10900935
    Abstract: An electric measurement circuit possesses an electrical reaction leg for forming an oscillator from a resonator, and furthermore possesses a measurement leg the input of which is supplied by the electrical reaction leg. The measurement leg contains an adjustable phase shifter so that an additional excitation force that is applied to the resonator in the measurement leg can be adjusted in phase quadrature with respect to an excitation force that is applied to the resonator in the electrical reaction leg. Such an electrical measurement circuit is particularly suitable for forming a photoacoustic gas detector.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: January 26, 2021
    Assignee: OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AÉROSPATIALES
    Inventors: Raphael Levy, Guillaume Aoust, Béatrice Verlhac, Jean Guerard, Olivier Le Traon, Vincent Gaudineau
  • ELECTRICAL MEASUREMENT CIRCUIT, GAS DETECTOR AND METHOD FOR MEASURING A GAS CONCENTRATION
    Publication number: 20200041462
    Abstract: An electric measurement circuit possesses an electrical reaction leg for forming an oscillator from a resonator, and furthermore possesses a measurement leg the input of which is supplied by the electrical reaction leg. The measurement leg contains an adjustable phase shifter so that an additional excitation force that is applied to the resonator in the measurement leg can be adjusted in phase quadrature with respect to an excitation force that is applied to the resonator in the electrical reaction leg. Such an electrical measurement circuit is particularly suitable for forming a photoacoustic gas detector.
    Type: Application
    Filed: September 26, 2017
    Publication date: February 6, 2020
    Inventors: Raphael LEVY, Guillaume AOUST, Béatrice VERLHAC, Jean GUERARD, Olivier LE TRAON, Vincent GAUDINEAU
  • SYSTEM AND METHOD FOR PROVIDING THE AMPLITUDE AND PHASE DELAY OF A SINUSOIDAL SIGNAL
    Publication number: 20190310294
    Abstract: Disclosed is a system and method that provide an amplitude value and a phase delay value which relate to a sinusoidal signal to be measured. For this purpose, phase values of a reference signal, at which the signal to be measured exceeds or falls below the reference signal, are collected and transmitted to a computation unit. The computation unit determines the amplitude and delay values from the collected phase values. The system can be implemented in a cost-effective manner, in particular using an ASIC circuit or an FPGA circuit.
    Type: Application
    Filed: June 9, 2017
    Publication date: October 10, 2019
    Applicant: Office National d'Etudes et de Recherches Aérospatiales
    Inventors: Jean GUERARD, Béatrice VERLHAC, Pierre LAVENUS, Raphaël LEVY