Patents by Inventor Graham Ronald French

Graham Ronald French 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).

  • Regulating radiation component power in wavelength division multiplexed optical communication systems
    Patent number: 7447432
    Abstract: There is provided a method of, and apparatus for, regulating radiation component (wavelength channel) power in a wavelength division multiplexed (WDM) optical communications system (10). The system (10) comprises a plurality of nodes (20) interconnected through optical waveguides (30, 40) (optical fibers). The method is characterised by: passing one or more tokens (300) around the system from node to node; adjusting nodal settings (150, 170), such as optical attenuation, applied at each node to regulate the power of WDM radiation components at the node in response to receiving one or more tokens; and repeating the method until WDM radiation component power within the system is substantially regulated.
    Type: Grant
    Filed: February 12, 2002
    Date of Patent: November 4, 2008
    Assignee: Ericsson AB
    Inventors: John Richard Fielding, Graham Ronald French
  • Regulating radiation component power in wavelength division multiplexed optical communication systems
    Publication number: 20040114927
    Abstract: There is provided a method of, and apparatus for, regulating radiation component (wavelength channel) power in a wavelength division multiplexed (WDM) optical communications system (10). The system (10) comprises a plurality of nodes (20) interconnected through optical waveguides (30, 40) (optical fibres). The method is characterised by: passing one or more tokens (300) around the system from node to node; adjusting nodal settings (150, 170), such as optical attenuation, applied at each node to regulate the power of WDM radiation components at the node in response to receiving one or more tokens; and repeating the method until WDM radiation component power within the system is substantially regulated.
    Type: Application
    Filed: January 23, 2004
    Publication date: June 17, 2004
    Inventors: John Richard Fielding, Graham Ronald French