Patents by Inventor Didier CASSEREAU

Didier CASSEREAU 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).

  • Electronic device and method for simulating an ultrasonic response of a metal part, associated testing electronic system and method and computer program
    Patent number: 11467134
    Abstract: A method for simulating an ultrasonic response of a metal part is carried out by an electronic simulating device. The method includes computing a first distribution of ultrasonic waves for the part without defect, in response to an ultrasonic excitation toward said part computing a second distribution of ultrasonic waves for a predefined zone (S3k) of the part, including a defect (20), in response to an ultrasonic excitation toward said zone (S3k), with the computation of elementary distributions, each corresponding to an ultrasonic response received by a receiver located at a border (F) of said zone; and determining a resultant distribution of ultrasonic waves for the part with defect, from the first and second computed distributions, the resultant distribution forming a simulation of an ultrasonic response received from the part including the defect (20), in response to an ultrasonic excitation toward said part.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: October 11, 2022
    Assignee: FRAMATOME
    Inventors: Florian Lyonnet, Marie-Françoise Cugnet, Didier Cassereau
  • Method for characterising bone using ultrasonic waves
    Patent number: 11369341
    Abstract: The invention relates to a method for characterising bone, the method comprising the steps of receiving (102) ultrasonic wave echo signals transmitted into a body, determining (104) a speed of sound in the body's non-bone biological tissue, locating (106) a first demarcation curve between non-bone biological tissue and bone in an image of the body constructed during said determining step, and determining (108) a speed of sound in bone. The steps of determining speed include constructing images from the signals, and a metric calculation indicative of a focus quality in the constructed images.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: June 28, 2022
    Assignees: SORBONNE UNIVERSITE, CENTRE NATIONAL DE LA RECHERCE SCIENTIFIQUE (CNRS), INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE (INSERM), ECOLE SUPERIEURE DE PHYSIQUE ET DE CHIMIE INDUSTRIELLES DE LA VILLE DE PARIS
    Inventors: Guillaume Renaud, Didier Cassereau
  • Electronic device and method for simulating an ultrasonic response of a metal part, associated testing electronic system and method and computer program
    Publication number: 20210072198
    Abstract: A method for simulating an ultrasonic response of a metal part is carried out by an electronic simulating device. The method includes computing a first distribution of ultrasonic waves for the part without defect, in response to an ultrasonic excitation toward said part computing a second distribution of ultrasonic waves for a predefined zone (S3k) of the part, including a defect (20), in response to an ultrasonic excitation toward said zone (S3k), with the computation of elementary distributions, each corresponding to an ultrasonic response received by a receiver located at a border (F) of said zone; and determining a resultant distribution of ultrasonic waves for the part with defect, from the first and second computed distributions, the resultant distribution forming a simulation of an ultrasonic response received from the part including the defect (20), in response to an ultrasonic excitation toward said part.
    Type: Application
    Filed: November 13, 2018
    Publication date: March 11, 2021
    Inventors: Florian LYONNET, Marie-Françoise CUGNET, Didier CASSEREAU
  • METHOD FOR CHARACTERISING BONE USING ULTRASONIC WAVES
    Publication number: 20200359992
    Abstract: The invention relates to a method for characterising bone, the method comprising the steps of receiving (102) ultrasonic wave echo signals transmitted into a body, determining (104) a speed of sound in the body's non-bone biological tissue, locating (106) a first demarcation curve between non-bone biological tissue and bone in an image of the body constructed during said determining step, and determining (108) a speed of sound in bone. The steps of determining speed include constructing images from the signals, and a metric calculation indicative of a focus quality in the constructed images.
    Type: Application
    Filed: July 19, 2018
    Publication date: November 19, 2020
    Applicants: Sorbonne University, Centre National de la Recherche Scientifique (CNRS), Institut National de la Sante et de la Recherche Medicale (INSERM), Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris
    Inventors: Guillaume RENAUD, Didier CASSEREAU