Patents by Inventor Charles CROENNE

Charles CROENNE 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).

  • Surface acoustic wave device
    Patent number: 11894830
    Abstract: A surface acoustic wave device includes at least one transducer; two acoustic reflectors disposed on either side of the at least one transducer so as to form a cavity, each acoustic reflector comprising an array of electrodes in the form of lines parallel with each other, each array comprising a subset of electrodes connected to a reference potential denoted mass defining a first connection type, and a subset of electrodes that are not connected to any potential, i.e. that have a floating connection defining a second connection type; at least one switching circuit configured to modify the distribution of the connections of at least one part of the electrodes of each array between the different connection types.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: February 6, 2024
    Assignees: THALES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, SOITEC SA, YNCREA HAUTS DE FRANCE ISEN LILLE, UNIVERSITE DE LILLE, ECOLE CENTRALE DE LILLE, UNIVERSITE POLYTECHNIQUE HAUTS-DE-FRANCE
    Inventors: Thi Mai Pham Colomban, Claude Prévot, Paolo Martins, Anne-Christine Hladky-Hennion, Bertrand Dubus, Marianne Sagnard, Thierry Laroche, Sylvain Ballandras, Charles Croenne
  • SURFACE ACOUSTIC WAVE DEVICE
    Publication number: 20220060173
    Abstract: A surface acoustic wave device: includes at least one transducer; two acoustic reflectors disposed on either side of the at least one transducer so as to form a cavity, each acoustic reflector comprising an array of electrodes in the form of lines parallel with each other, each array comprising a subset of electrodes connected to a reference potential denoted mass defining a first connection type, and a subset of electrodes that are not connected to any potential, i.e. that have a floating connection defining a second connection type; at least one switching circuit configured to modify the distribution of the connections of at least one part of the electrodes of each array between the different connection types.
    Type: Application
    Filed: December 27, 2019
    Publication date: February 24, 2022
    Inventors: Thi Mai PHAM COLOMBAN, Claude PRÉVOT, Paolo MARTINS, Anne-Christine HLADKY- HENNION, Bertrand DUBUS, Marianne SAGNARD, Thierry LAROCHE, Sylvain BALLANDRAS, Charles CROENNE