Patents by Inventor John Fitzgerald Finnell

John Fitzgerald Finnell 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).

  • Voltage standing-wave ratio measurement apparatus and use in a cellular communications system
    Patent number: 6625428
    Abstract: An apparatus for monitoring a cellular communications system; comprising a plurality of voltage standing-wave ratio (VSWR) measurement means located at respective connections to antennas of said communications system and at respective discontinuities in radio transmission lines to said distributed antennas; wherein each said VSWR measurement means is individually identifiable, has a respective threshold, and is arranged to compare its measured VSWR value to its respective threshold and identifiably indicate an error status if its measured VSWR value exceeds its threshold. Also described is a corresponding method of monitoring a cellular communications system. Also described is a VSWR measurement apparatus, and an antenna arrangement comprising an antenna and such a VSWR measurement apparatus.
    Type: Grant
    Filed: January 13, 2000
    Date of Patent: September 23, 2003
    Assignee: Motorola, Inc.
    Inventors: John Fitzgerald Finnell, Thomas Paul Groves, Peter William Bishop