Patents by Inventor Steven J. Pfiefer

Steven J. Pfiefer 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).

  • Bandwidth management system for a remote repeater network
    Patent number: 5991309
    Abstract: A bandwidth management system for a remote repeater network for modifying a first signal to create a second signal within the bandwidth of a communications link, transferring the second signal across the communications link, and reconstructing the first signal at the remote end of the communications link. The bandwidth management system featuring several mixing modes for performing the signal conversion and reconstruction. The system offering a calibration feature to correct for phase distortions introduced in reconstruction of the original signal. The calibration feature incorporating signals from a global positioning satellite system for reconstruction.
    Type: Grant
    Filed: April 12, 1996
    Date of Patent: November 23, 1999
    Assignee: E.F. Johnson Company
    Inventors: Dana J. Jensen, Steven J. Pfiefer, James K. Lyon, Mark D. Dvorak