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ApplicationNo. 347523 filed on 11/30/1994
US Classes:700/280, Vibration or acoustic noise control244/1N, Noise abatement381/71.4Within cabin or compartment of vehicle
ExaminersPrimary: Teska, Kevin J.
Assistant: Frejd, Russell W.
Attorney, Agent or Firm
International ClassG10K 011/16
AbstractAn active noise and vibration cancellation system with broadband control capability. A broadband disturbance signal detector positioned within a closed compartment such as an aircraft cabin or vehicle passenger compartment provides a signal representative of the frequency spectrum and corresponding relative magnitude of a broadband signal emanating from a vibrational energy source to a controller. The controller receives the broadband disturbance signal as well as error signals from error sensors which, by virtue of adaptive filters within the controller, enhance the cancellation capability of the control signals produced by one or more actuators positioned within the compartment.