Patents by Inventor W. Scott Johnston

W. Scott Johnston 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: 5909190
    Abstract: A processor and method for discriminating against interference during target acquisition and reacquisition processing of densely cluttered images. The processor and method that adaptively estimates the feature probability density function of the interference from the image data. The estimated interference probability density function, along with target feature estimates are input to a Bayesian classifier that discriminates the interference from the target.
    Type: Grant
    Filed: October 30, 1997
    Date of Patent: June 1, 1999
    Assignee: Raytheon Company
    Inventors: Thomas K. Lo, W. Scott Johnston
  • Patent number: 5323334
    Abstract: A sensor system includes a sensor (20) having an array (22) of detector elements (24), a movable sensor positioner (32) in which the sensor (20) is mounted, a signal processor (30) that progressively corrects the intensities of the pixels of a sensor output array for detector element nonuniformity, an electronic scene position corrector (40), and a motion controller (36) that provides a movement command (34) to the sensor positioner (32), and transmits the substance of the movement command to the scene position corrector (40). An image array signal is furnished from the sensor (20) to the signal processor (30), while the sensor positioner (32) is controllably moved under command of the motion controller (36). A nonuniformity-compensated output signal (38) of the signal processor (30) is provided to the scene position corrector (40), wherein the position of the image is corrected for the motion of the sensor positioner (32).
    Type: Grant
    Filed: December 4, 1992
    Date of Patent: June 21, 1994
    Assignee: Hughes Aircraft Company
    Inventors: Franklin J. Meyers, W. Scott Johnston