Patents by Inventor Christophe Billard

Christophe Billard 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 impedance matching a component, comprising a filter having matchable impedance, based on a perovskite type material
    Patent number: 9281798
    Abstract: A device comprises at the input a first component (PA) having a first output impedance (Z1), at the output a second component (ANT) having a second input impedance (Z2), and an impedance-matching network between said first and second components. Because the first and/or the second impedance vary/varies, said impedance-matching network comprises a filter (Fadp), with an impedance that is matchable to the first and second impedances, located between said first and second components and comprising at least two acoustic wave coupled resonators. At least one of the resonators comprises a perovskite type material and means for applying a voltage to said resonator, which enable the permittivity and the impedance thereof to be varied.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: March 8, 2016
    Assignee: Commissariat A L'Energie Atomique et aux Energies Alternatives
    Inventors: Jean-Baptiste David, Christophe Billard, Emmanuel Defay
  • Protection for an integrated circuit chip containing confidential data
    Patent number: 8110894
    Abstract: An integrated circuit chip for holding or processing data on information for secure protection. A first side of the chip has at least one first conductor element and another side of the chip has another conducting element.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: February 7, 2012
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Olivier Savry, Christophe Billard
  • DEVICE FOR IMPEDANCE MATCHING A COMPONENT, COMPRISING A FILTER HAVING MATCHABLE IMPEDANCE, BASED ON A PEROVSKITE TYPE MATERIAL
    Publication number: 20120007666
    Abstract: A device comprises at the input a first component (PA) having a first output impedance (Z1), at the output a second component (ANT) having a second input impedance (Z2), and an impedance-matching network between said first and second components. Because the first and/or the second impedance vary/varies, said impedance-matching network comprises a filter (Fadp), with an impedance that is matchable to the first and second impedances, located between said first and second components and comprising at least two acoustic wave coupled resonators. At least one of the resonators comprises a perovskite type material and means for applying a voltage to said resonator, which enable the permittivity and the impedance thereof to be varied.
    Type: Application
    Filed: June 30, 2011
    Publication date: January 12, 2012
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Jean-Baptiste DAVID, Christophe BILLARD, Emmanuel DEFAY
  • Protection for an integrated circuit chip containing confidential data
    Publication number: 20070121575
    Abstract: An integrated circuit chip for holding or processing data on information for secure protection. A first side of the chip has at least one first conductor element and another side of the chip has another conducting element.
    Type: Application
    Filed: December 23, 2004
    Publication date: May 31, 2007
    Inventors: Olivier Savry, Christophe Billard