Patents by Inventor Alain de Place

Alain de Place 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).

  • Agile microwave filter having at least one ferrite resonator
    Patent number: 5184097
    Abstract: An agile microwave filter tunable by ferrite is constituted as a filter having dielectric confinement resonators and as a result comprises an evanescent mode waveguide and resonant cylinders placed in the waveguide. In addition, the cylinders are made of ferrite and means are provided for applying an adjustable magnetic field thereto, thereby enabling the center frequency of the filter to be shifted.
    Type: Grant
    Filed: February 15, 1991
    Date of Patent: February 2, 1993
    Assignee: Alcatel Transmission par Faisceaux Hertziens
    Inventors: Carole Brouzes, Claude Ressencourt, Alain de Place
  • Apparatus for measuring bending movements of an antenna support mast, and application thereof to controlling the pointing of a motor-driven antenna
    Patent number: 5151710
    Abstract: A device for measuring bending movements of an antenna support mast, wherein the device being comprises: at least two sets of sensors separated by a determined distance d and fixed to the mast in the vicinity of the free end of the mast; and a processor for processing the signals by the sensors; the processor including means for memorizing the signals. The invention is particularly applicable to radio beam links.
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: September 29, 1992
    Assignee: Alcatel Transmission par Faisceaux Hertziens
    Inventor: Alain de Place