Patents by Inventor Johm M. Ulm

Johm M. Ulm 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).

  • SYSTEM FOR STACKING SIGNALS IN AN EXPANDED FREQUENCY RANGE
    Publication number: 20100158049
    Abstract: A device for stacking signals in an expanded frequency range includes an upconverter and a multiplexer. The upconverter is configured to receive upstream signals that are in a first frequency range, upconvert some of the upstream signals that are in a first frequency sub-range of the first frequency range and pass some of the upstream signals that are in a second frequency sub-range of the first frequency range. The multiplexer is configured to stack the upconverted upstream signals and the upstream signals in the second frequency sub-range and output the stacked upstream signals.
    Type: Application
    Filed: December 23, 2008
    Publication date: June 24, 2010
    Applicant: General Instrument Corporation
    Inventors: Daniel H. Howard, Robert L. Howald, Johm M. Ulm