Patents by Inventor Terrence Widdowson

Terrence Widdowson 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).

  • Dark pulse TDMA optical network
    Patent number: 6396604
    Abstract: An optical network includes a number of nodes coupled to an optical transmission medium, such as an optical fiber bus. Each of the nodes includes a dark pulse generator. Different nodes output dark pulses in different time slots onto the transmission medium, forming a dark pulse OTDM (optical time division multiplexed) signal. The network may have a re-entrant bus topology.
    Type: Grant
    Filed: March 19, 1998
    Date of Patent: May 28, 2002
    Assignee: British Telecommunications plc
    Inventors: Kevin Smith, Julian Kazimierz Lucek, Danny Robert Pitcher, Terrence Widdowson, David Graham Moodie, Andrew David Ellis