Patents by Inventor Roger Torguet

Roger Torguet 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).

  • Method for the detection, recognition and use of signals mixed with other encoding or parasitic signals, and apparatus for performing the method
    Patent number: 5410427
    Abstract: The invention is a method that considerably improves the rapidity of collection and recognition of electrical signals that are mixed with other signals that impede direct access. The subject of the invention is a method for detection, recognition and use of significant trains of modulated signals on a carrier frequency. The apparatus which provides for the method utilizes a sole crystalline Bragg cell wherein two signal trains travel colinearly through the cell.
    Type: Grant
    Filed: December 26, 1990
    Date of Patent: April 25, 1995
    Assignee: Sodena
    Inventors: Jean C. P. Huignard, Patrick Sauvin, Ouzana Bazzi, Roger Torguet
  • Multi-frequency acousto-optic modulation process and apparatus
    Patent number: 4799777
    Abstract: A process for acousto-optic modulation of a monochromatic light beam, delivered by a laser, consists in deflecting the light beam in an acousto-optic modulator which receives a composite electric signal. The composite signal has at least one modulation frequency. It further includes two compensation components. The overall acoustic power applied to the modulator is maintained at a substantially constant value by servo-controlling the electric power of the two compensation components having frequencies which are mutually different and different from the modulation frequency or frequencies.
    Type: Grant
    Filed: March 31, 1987
    Date of Patent: January 24, 1989
    Assignee: Centre National De La Recherche Scientifique
    Inventors: Bridoux Edouard, Camus Lievin, Bruneel Christian, Gazalet Marc, Roger Torguet
  • Ultrasonic system for the visual display of a thin section of a body
    Patent number: 4212206
    Abstract: The invention relates to ultrasonic systems for the visual display of a thin section of a body. The subject of the invention is a system wherein the multi-element scanning probe which picks up or transmits the ultrasonic energy cooperates with an array of elastic-surface-wave transducers and with a group of frequency converter circuits in order to constitute an ultrasonic lens. The invention is more particularly applicable to the non-destructive examination of bodies permeable to ultrasonic energy such as is practiced for example in medicine and when industrial goods are being checked.
    Type: Grant
    Filed: October 10, 1978
    Date of Patent: July 15, 1980
    Assignee: Thomson-CSF
    Inventors: Pierre Hartemann, Roger Torguet
  • Radiographic apparatus
    Patent number: 4007373
    Abstract: A radiographic apparatus for determining the absorption coefficient of bodies to be examined in which the radiation power is controlled by a negative feedback circuit, so as to be increased as a function of the absorption coefficient of the region under examination. Elements are provided for taking a predetermined fraction of the radiation, and for eliminating the variation of the power from the equation which gives the absorption coefficient.
    Type: Grant
    Filed: September 23, 1975
    Date of Patent: February 8, 1977
    Assignee: Thomson-CSF
    Inventors: Roger Torguet, Michel Frechede