Patents by Inventor Hassen Hamrita

Hassen Hamrita 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 amplification device, measurement apparatus and associated measurement method
    Patent number: 10845391
    Abstract: An amplification device including: a switch including an output that is suitable for being connected to a first or a second input; a first branch that is connected to the first input, which applies a first gain to generate a first amplified signal; a second branch that is connected to the second input, which applies a second gain to generate a second amplified signal; a controller for controlling the switching of the switch to apply the first or the second amplified signal to the output, depending on whether or not the value of a predetermined quantity of the first amplified signal falls within a predetermined range. The first gain and the second gain being non-zero real numbers of opposite sign.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: November 24, 2020
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Hassen Hamrita, Jean-Michel Bourbotte, Vladimir Kondrasovs, Hamid Makil
  • ELECTRONIC AMPLIFICATION DEVICE, MEASUREMENT APPARATUS AND ASSOCIATED MEASUREMENT METHOD
    Publication number: 20190204360
    Abstract: An amplification device including: a switch including an output that is suitable for being connected to a first or a second input; a first branch that is connected to the first input, which applies a first gain to generate a first amplified signal; a second branch that is connected to the second input, which applies a second gain to generate a second amplified signal; a controller for controlling the switching of the switch to apply the first or the second amplified signal to the output, depending on whether or not the value of a predetermined quantity of the first amplified signal falls within a predetermined range. The first gain and the second gain being non-zero real numbers of opposite sign.
    Type: Application
    Filed: September 5, 2017
    Publication date: July 4, 2019
    Inventors: Hassen Hamrita, Jean-Michel Bourbotte, Vladimir Kondrasovs, Hamid Makil
  • System for controlling photomultiplier gain drift and associated method
    Patent number: 8624192
    Abstract: A system for controlling photomultiplier gain drift is disclosed. According to one aspect, the system includes first means for measuring a noise signal of the photomultiplier, the first means configured emit a measurement signal representative of the photomultiplier's noise signal. The system further includes second means for maintaining the measured noise signal at a constant level, based on the measurement signal. The disclosed embodiments apply to stabilization of the gain of photomultipliers and, more specifically, to stabilization of neutron measurement systems using photomultipliers.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: January 7, 2014
    Assignee: Commissariat a l'Energie Atomique et aux Energies Alternatives
    Inventors: Stéphane Normand, Anne-Marie Frelin, Hassen Hamrita, Vladimir Kondrasovs
  • SYSTEM FOR CONTROLLING PHOTOMULTIPLIER GAIN DRIFT AND ASSOCIATED METHOD
    Publication number: 20110186740
    Abstract: A system for controlling photomultiplier gain drift is disclosed. According to one aspect, the system includes first means for measuring a noise signal of the photomultiplier, the first means configured emit a measurement signal representative of the photomultiplier's noise signal. The system further includes second means for maintaining the measured noise signal at a constant level, based on the measurement signal. The disclosed embodiments apply to stabilization of the gain of photomultipliers and, more specifically, to stabilization of neutron measurement systems using photomultipliers.
    Type: Application
    Filed: September 22, 2009
    Publication date: August 4, 2011
    Applicant: Commissariat a l'energie atomiwque et aux energies altenatives
    Inventors: Stéphane Normand, Anne-Marie Frelin, Hassen Hamrita, Vladimir Kondrasovs