Patents by Inventor Derek Lightfoot

Derek Lightfoot 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).

  • Correlating signalling and bearer circuits in a mobile communications network
    Publication number: 20070115835
    Abstract: Identifications of signalling and bearer circuits carrying signalling information and communications traffic (e.g. voice calls) for the same communication are correlated by recognising a predetermined pattern in the communications traffic signals, and identifying signalling messages by reference to information contained in the messages relating to time of occurrence of the related communications traffic.
    Type: Application
    Filed: October 20, 2006
    Publication date: May 24, 2007
    Inventors: Craig Renfrew, Derek Lightfoot