Patents by Inventor Pascal Ventura

Pascal Ventura 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-wave distributed acoustic reflection transducer and filter including such a transducer
    Patent number: 5703427
    Abstract: The distributed acoustic reflection transducer has a reflection function which includes at least one reversal of sign, that is to say it possesses at least one reflector and, in general, a combination of reflectors, the center of which is at a distance of k.lambda./2+.lambda./4 from the center of the other reflectors, .lambda. being the wavelength corresponding to the central operating frequency of the transducer.The applications will be for the production of surface-wave filters in radio communication systems.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: December 30, 1997
    Assignee: Thomson-CSF
    Inventors: Marc Solal, Pascal Ventura, Jean-Michel Hode