Patents by Inventor Douglas E. Melton

Douglas E. Melton 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).

  • Patent number: 5627747
    Abstract: A system that facilitates the development and operation of active sound or vibration control systems, especially for those not skilled in computer programming. The system facilitates the development of developing active sound or vibration control systems implementing an adaptive control model. In particular, the system has a software collection containing control system software that implements an adaptive control model which can be programmed on an electronic controller to actively control sound or vibration. The system also has a user interface that prompts the user to enter information pertaining to the control system being developed so that the electronic controller can implement an adaptive control model in accordance with the information entered by the user.
    Type: Grant
    Filed: October 13, 1994
    Date of Patent: May 6, 1997
    Assignee: Digisonix, Inc.
    Inventors: Douglas E. Melton, James E. Allard, Brian M. Finn, Jerry J. Trantow, Steven R. Popovich, Trevor A. Laak, Mark C. Allie, Larry J. Eriksson
  • Patent number: 5570425
    Abstract: An adaptive multi-channel active acoustic attenuation system is provided for attenuating complex acoustic waves. The system includes a plurality of input sensor nodes and a plurality of error sensor nodes. Each node includes a central processing unit and a network interface. A medium physically interconnects each of the network interfaces to a communication module of a controller by means of a control bus or the like. A control network is provided for controlling communication between a communication module of a controller and each of the network interfaces to control the flow of data along the medium.
    Type: Grant
    Filed: November 7, 1994
    Date of Patent: October 29, 1996
    Assignee: Digisonix, Inc.
    Inventors: Seth D. Goodman, Larry J. Eriksson, Douglas E. Melton, Edward R. Braun
  • Patent number: 5216721
    Abstract: A multi-channel active acoustic attenuation system has a plurality of adaptive filter channel models each of which is intraconnected to each of the remaining channel models such that each channel model has a model input from each of the remaining channel models. The correction signal from each model output to the respective output transducer is also input to each of the remaining channel models, and each channel model has an error input from each error transducer. A generalized system is provided for complex acoustic fields.
    Type: Grant
    Filed: April 25, 1991
    Date of Patent: June 1, 1993
    Assignee: Nelson Industries, Inc.
    Inventor: Douglas E. Melton