Patents by Inventor Raphaël Brisson

Raphaël Brisson 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).

  • Inertial sensor with disturbing current reduced by reducing the width and the spacing of tracks in critical zones
    Patent number: 7628070
    Abstract: The inertial sensor comprises a piezoelectric plate having a vibrator member defined therein that carries excitation electrodes connected to an excitation circuit comprising conductor tracks carried by the piezoelectric plate, the excitation circuit including a disturbing circuit portion in which two conductor tracks extend on either side of a midplane and present a width less than 50 ?m, and preferably equal to 10 ?m, and are spaced apart by a distance of less than 100 ?m, and preferably equal to 40 ?m.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: December 8, 2009
    Assignee: Sagem Defense Securite
    Inventors: Raphaël Brisson, Paul Featonby
  • Internal sensor with disturbing current reduced by compensation branches
    Patent number: 7451648
    Abstract: The inertial sensor comprises a piezoelectric plate having a vibrator member defined therein carrying excitation electrodes connected to an excitation circuit including conductor tracks carried by the piezoelectric plate the excitation circuit including a disturbing circuit portion in which the excitation circuit has compensation branches associated with corresponding disturbing conductor track portions, each compensation branch having one end connected to the corresponding disturbing conductor track portion and extending on a side of the midplane that is opposite from the side on which the corresponding disturbing conductor track portion extends.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: November 18, 2008
    Assignee: Sagem Defense Securite
    Inventors: Raphaël Brisson, Paul Featonby