Patents by Inventor Jean-Luc Gach

Jean-Luc Gach 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).

  • Device for controlling a piezoelectric actuator
    Patent number: 10389277
    Abstract: A device is provided for controlling a piezoelectric actuator able to combine two types of piezoelectric actuator control, namely voltage control and charge control. Switching between charge control and voltage control takes place automatically, without added switching elements, according to the nature of the voltage applied to the input of the setup.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: August 20, 2019
    Assignees: UNIVERSITE D'AIX-MARSEILLE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Issa Ouattara, Jean-Luc Gach, Philippe Amram
  • DEVICE FOR CONTROLLING A PIEZOELECTRIC ACTUATOR
    Publication number: 20180183357
    Abstract: A device is provided for controlling a piezoelectric actuator able to combine two types of piezoelectric actuator control, namely voltage control and charge control. Switching between charge control and voltage control takes place automatically, without added switching elements, according to the nature of the voltage applied to the input of the setup.
    Type: Application
    Filed: June 10, 2016
    Publication date: June 28, 2018
    Inventors: Issa OUATTARA, Jean-Luc GACH, Philippe AMRAM
  • Spectral sensitive solid-state photodetector
    Patent number: 9482578
    Abstract: A method for detecting photons includes subjecting a photodiode formed in a semi-conductive material, to a bias voltage such that an avalanche phenomenon can appear when a photon enters the photodiode in an avalanche layer extending into the semi-conductive material down to minimum and maximum depths so that it can be reached by photons having a wavelength between minimum and maximum wavelengths. The method also includes comparing the amplitude of a signal supplied by the photodiode with two threshold values, and deducing that the photodiode received a photon having a wavelength between two threshold wavelengths ranging between the minimum and maximum wavelengths, if the amplitude of the signal is between the two threshold values.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: November 1, 2016
    Assignee: Universite d'Aix-Marseille
    Inventor: Jean-Luc Gach
  • SPECTRAL SENSITIVE SOLID-STATE PHOTODETECTOR
    Publication number: 20130335742
    Abstract: A method for detecting photons includes subjecting a photodiode formed in a semi-conductive material, to a bias voltage such that an avalanche phenomenon can appear when a photon enters the photodiode in an avalanche layer extending into the semi-conductive material down to minimum and maximum depths so that it can be reached by photons having a wavelength between minimum and maximum wavelengths. The method also includes comparing the amplitude of a signal supplied by the photodiode with two threshold values, and deducing that the photodiode received a photon having a wavelength between two threshold wavelengths ranging between the minimum and maximum wavelengths, if the amplitude of the signal is between the two threshold values.
    Type: Application
    Filed: December 13, 2011
    Publication date: December 19, 2013
    Applicant: UNIVERSITE D' AIX-MARSEILLE
    Inventor: Jean-Luc Gach