Patents by Inventor Randy L. Wilhelm

Randy L. Wilhelm 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).

  • Adaptive window CFAR apparatus
    Patent number: 4542381
    Abstract: A constant false alarm rate (CFAR) apparatus is responsive to detected transitions in the clutter signal level to remove certain range cells from the alarm threshold calculation process, whereby the CFAR detector retains maximum sensitivity in the vicinity of clutter transitions while avoiding increased false alarm rates. A transition detection apparatus searches for transitions in range cells preceding the threshold calculation window and controls switches which remove range cells from the threshold calculation as the transition is shifted into and through the threshold calculation window.
    Type: Grant
    Filed: October 5, 1982
    Date of Patent: September 17, 1985
    Assignee: Motorola, Inc.
    Inventor: Randy L. Wilhelm
  • Multiple point, discrete cosine processor
    Patent number: 4449194
    Abstract: A discrete cosine processor for video signals and the like wherein each term of a discrete cosine transform matrix is approximated by a power of 2 terms so that all mathematical steps are performed by shifting and/or subtracting digital data. The apparatus includes fully pipelined shifting circuits, circulating memories and a fully pipelined accumulator to provide the transformed terms.
    Type: Grant
    Filed: September 25, 1981
    Date of Patent: May 15, 1984
    Assignee: Motorola Inc.
    Inventor: Randy L. Wilhelm