Patents Represented by Attorney, Agent or Law Firm Wall Marjama & Belinski LLP
  • 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