Patents by Inventor Robert Charles Fairfield

Robert Charles Fairfield 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).

  • Patent number: 6259910
    Abstract: A wireless telecommunications system architecture is disclosed that is capable of supporting a centralized block radio architecture and of distributing the information-bearing signals from the block radio to geographically-dispersed radio heads using relatively low-cost cable (e.g., twisted-pair, etc.). In accordance with the illustrative embodiment of the present invention, a radio multiplexes, modulates, and channel codes one or more information-bearing signals and upconverts them, not to radio frequency, but to an intermediate frequency that can be transmitted over a low-cost cable. Co-located with each radio head is an upconverter that upconverts the intermediate frequency signal to radio frequency in preparation for radiation by an antenna.
    Type: Grant
    Filed: February 13, 1998
    Date of Patent: July 10, 2001
    Assignee: Lucent Technologies, Inc.
    Inventors: Robert Charles Fairfield, Carmine James Pagano, II, John Stanley Rucki, Michael Ralph Simmons, Christopher F. Zappala