Patents by Inventor Danny R. Cusick

Danny R. Cusick 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).

  • Median filter for reducing data error in distance measuring equipment
    Patent number: 4672567
    Abstract: A set containing an odd number N of successive raw range data samples from precision distance measuring equipment is established. The set is arranged in ascending order of sample magnitude. The median member of the ordered set, i.e. the (N-1/2+1 member, is selected for processing in an alpha-beta type digital filter. The filter output is compensated for the delay introduced by using the median member of the set as the input to the alpha-beta filter. The compensated filter output is utilized as the distance input signal to a display or aircraft flight control system.
    Type: Grant
    Filed: February 19, 1985
    Date of Patent: June 9, 1987
    Assignee: Allied Corporation
    Inventors: Robert J. Kelly, Danny R. Cusick