Patents by Inventor Bertrand D'Albaret

Bertrand D'Albaret 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).

  • Dielectric filter with variable central frequency
    Patent number: 4714906
    Abstract: A dielectric filter with variable central frequency is provided comprising at least one dielectric resonator formed from a dielectric ceramic body covered with electrodes as well as electromagnetic input and output means for coupling the signal to and from the filter. According to the invention, the filter further comprises a variable capacity connected between the electrodes of the resonator, in a capacitive zone of said resonator, for continuously varying the central frequency of said filter.
    Type: Grant
    Filed: May 23, 1985
    Date of Patent: December 22, 1987
    Assignee: Compagnie D'electronique et de Piezo-electricite
    Inventors: Bertrand D'Albaret, Antoine Colombani