Patents by Inventor Elie Herve

Elie Herve 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: 11000248
    Abstract: Methods and systems are provided for dual energy imaging. In one embodiment, a method comprises controlling an x-ray source with a first voltage to generate x-rays at a first energy, controlling the x-ray source with a second voltage to generate x-rays at a second energy lower than the first energy, and controlling a current of the x-ray source to peak above a target current when a voltage of the x-ray source is transitioning from the first voltage to the second voltage. In this way, the duration for transitioning from the first voltage to the second voltage is reduced, thereby enabling faster voltage switching of the x-ray source, improved energy separation in acquired projection data, and improved image quality.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: May 11, 2021
    Assignee: GE PRECISION HEALTHCARE LLC
    Inventors: Aurelien Gadenne, Benoit Grigis, Jean-Fran├žois Larroux, Elie Herve
  • Publication number: 20210100517
    Abstract: Methods and systems are provided for dual energy imaging. In one embodiment, a method comprises controlling an x-ray source with a first voltage to generate x-rays at a first energy, controlling the x-ray source with a second voltage to generate x-rays at a second energy lower than the first energy, and controlling a current of the x-ray source to peak above a target current when a voltage of the x-ray source is transitioning from the first voltage to the second voltage. In this way, the duration for transitioning from the first voltage to the second voltage is reduced, thereby enabling faster voltage switching of the x-ray source, improved energy separation in acquired projection data, and improved image quality.
    Type: Application
    Filed: October 3, 2019
    Publication date: April 8, 2021
    Inventors: Aurelien Gadenne, Benoit Grigis, Jean-Francois Larroux, Elie Herve
  • Patent number: 10750602
    Abstract: A system for compensating for a back emission current in an X-ray generator is provided. The system includes a transformer, a common, and a voltage source. The transformer is operative to provide power to an electron emitter of the X-ray generator. The common is electrically coupled to an anode of the X-ray generator. The anode is operative to receive electrons emitted by the electron emitter such that the back emission current is generated between the common and the electron emitter. The voltage source electrically couples the common to the transformer and is operative to generate an offset voltage that reduces the back emission current.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: August 18, 2020
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Yannick Louvrier, Julien Nicolle, Christophe Robert, Elie Herve, Philippe Ernest
  • Patent number: 10727830
    Abstract: A switch of an inverter of an X-ray tube power supply including: at least four MOSFETs aligned in parallel; a plurality of intermediate radiators positioned between the MOSFETs in order to separate two successive MOSFETs; at least four snubbers positioned in parallel, each being positioned beside a MOSFET; a control unit of said switch positioned so that the succession of MOSFETs is positioned between the alignment of snubbers and the control unit.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: July 28, 2020
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Nicolas Levilly, Denis Perrilliat-Amede, Patrick Feat, Daniel Dumourier, Elie Herve
  • Publication number: 20190150256
    Abstract: A system for compensating for a back emission current in an X-ray generator is provided. The system includes a transformer, a common, and a voltage source. The transformer is operative to provide power to an electron emitter of the X-ray generator. The common is electrically coupled to an anode of the X-ray generator. The anode is operative to receive electrons emitted by the electron emitter such that the back emission current is generated between the common and the electron emitter. The voltage source electrically couples the common to the transformer and is operative to generate an offset voltage that reduces the back emission current.
    Type: Application
    Filed: May 31, 2018
    Publication date: May 16, 2019
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: YANNICK LOUVRIER, JULIEN NICOLLE, CHRISTOPHE ROBERT, ELIE HERVE, PHILIPPE ERNEST
  • Publication number: 20160315606
    Abstract: A switch of an inverter of an X-ray tube power supply including: at least four MOSFETs aligned in parallel; a plurality of intermediate radiators positioned between the MOSFETs in order to separate two successive MOSFETs; at least four snubbers positioned in parallel, each being positioned beside a MOSFET; a control unit of said switch positioned so that the succession of MOSFETs is positioned between the alignment of snubbers and the control unit.
    Type: Application
    Filed: September 10, 2014
    Publication date: October 27, 2016
    Applicant: General Electric Company
    Inventors: Nicolas Levilly, Denis Perrilliat-Amede, Patrick Feat, Daniel Dumourier, Elie Herve