Patents by Inventor Wayne E. Smith, Jr.

Wayne E. Smith, Jr. 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).

  • Device and method for a nonlinear comb filter
    Patent number: 5265042
    Abstract: This invention describes a nonlinear comb filter device and a method for removing harmonic interference from a corrupted signal. Here, a corrupted signal is defined as a signal containing an impulsive signal and harmonic interference. The corrupted signal is delayed through a delay line. The delay line has a plurality of tapped output terminals each spaced at a delay time that is a multiple of the fundamental period of the harmonic interference. An odd number of taps is preferred for ease of sampling and ease of performing certain nonlinear functions such as a median. Each delay line tap is connected to a corresponding input to a nonlinear device. A median device is one possible embodiment of a nonlinear device. The delay line and the nonlinear device extract the harmonic interference from the corrupted signal.
    Type: Grant
    Filed: August 20, 1992
    Date of Patent: November 23, 1993
    Assignee: The United States of America Government as represented by the Director, National Security Agency
    Inventor: Wayne E. Smith, Jr.