Patents by Inventor John Francis Fitzgerald

John Francis Fitzgerald 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).

  • Method and apparatus for multimedia conferencing with dynamic bandwidth allocation
    Patent number: 6611503
    Abstract: The specification discloses a multimedia conferencing service capability for dynamically allocating transmission link bandwidth among video, audio and data channels in response to changes in the utilization of those channels. The capability maximizes video quality when data is not being used and minimizes data transfer time when data is being used in a multimedia conference. A multipoint control unit (MCU) monitors the utilization of T.120 MLP data channels and changes the bandwidth allocation for all of the transmission links in response to changes in the utilization for at least one of the data channels. The utilization is monitored by measuring the data rate of outbound T.120 MLP data channels and comparing the measured data rate to the allocated bandwidth to determine the data channel utilization.
    Type: Grant
    Filed: May 22, 1998
    Date of Patent: August 26, 2003
    Assignee: Tandberg Telecom AS
    Inventors: John Francis Fitzgerald, James Gerald Kamitses, Glenn William Stewart