Patents by Inventor Jacques Martinat

Jacques Martinat 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).

  • Active device for attenuating the intensity of sound
    Patent number: 6463156
    Abstract: An active device for attenuating noise in a defined region using anti-noise waves. Sensors capable of detecting noise waves and the direction of the waves and providing data to a processor for controlling an electro-acoustic source so that the source emits anti-noise waves in a direction counter to the direction of the incoming noise waves.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: October 8, 2002
    Assignee: Comptoir de la Technologie
    Inventors: Lionel Gaudriot, Jacques Martinat
  • Active device for attenuating the sound intensity
    Patent number: 5834647
    Abstract: A device for attenuating noises generated by moving sources includes a set of arranged electroacoustic sources which emit an opposite antinoise wave in response to an incident wave as sensed and processed. The electroacoustic sources are arranged to preferably emit a synchronous antinoise wave having a radius of curvature approximating that of the incident wave.
    Type: Grant
    Filed: April 18, 1997
    Date of Patent: November 10, 1998
    Assignee: Comptoir De La Technologie
    Inventors: Lionel Gaudriot, Jacques Martinat