Patents by Inventor Bernard Liabeuf

Bernard Liabeuf 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).

  • Broadband radar and modulator, in particular for microwave switching over a very short period
    Patent number: 7161526
    Abstract: The present invention relates to an ultrawideband radar. It also relates to a modulator, in particular for switching microwaves over a very short duration. The radar includes a modulator modulating a carrier microwave, this modulator including a microwave mixer means for generating a modulation signal. The microwave enters on one input of the mixer and the modulation signal on the other input of the mixer, the output signal from the mixer being provided to the transmission means of the radar. Advantageously, the modulation signal may be pulsed and of very short duration. A local oscillator, operating as a free oscillator, provides the microwave to be modulated. The invention applies in particular in respect of aiding the parking of motor vehicles. More generally, it applies in respect of all applications which require low-cost high distance resolution radar detection.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: January 9, 2007
    Assignee: Thales
    Inventors: Pascal Cornic, Philippe Laviec, Bernard Liabeuf, Francisco Melero
  • Broadband radar and modulator, in particular for microwave switching over a very short period
    Publication number: 20040061640
    Abstract: The present invention relates to an ultrawideband radar. It also relates to a modulator, in particular for switching microwaves over a very short duration.
    Type: Application
    Filed: June 10, 2003
    Publication date: April 1, 2004
    Inventors: Pascal Cornic, Philippe Laviec, Bernard Liabeuf, Francisco Melero
  • Tunable microwave filtering device with dielectric resonator, and applications
    Patent number: 4835498
    Abstract: A tunable, microwave filtering device comprises a microstrip line, a dielectric resonator capable of being coupled to the microstrip line, a coplanar line capable of being coupled to the resonator, an active element, such as a varactor for example, mounted on the coplanar line, the variable impedance of which enables the frequency tuning of the device. The invention can be applied to the making of a tunable microwave frequency discriminator, the making of a microwave oscillator and the frequency stabilization of a tunable oscillator.
    Type: Grant
    Filed: June 6, 1988
    Date of Patent: May 30, 1989
    Assignee: Thomson-CSF
    Inventors: Jean-Michel Rouger, Gilles Denis, Bernard Liabeuf