Patents by Inventor Martin J. Fice

Martin J. Fice 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).

  • Apparatus and method for reading data from an optical packet header
    Patent number: 6694098
    Abstract: A method of reading and updating a packet header of an optical packet for transmission over an optical network involves dividing the input signal into two paths. The signal in one path (46) is converted into an electrical signal and the header information is read. The data stored in the packet header is removed optically in the other path (44) by constraining the packet header signal to have a constant amplitude. Updated header information is used to modify the constant amplitude signal using a modulator (60). An apparatus is provided for implementing the method. The header is thus read in the electrical domain, but it is updated optically.
    Type: Grant
    Filed: December 13, 1999
    Date of Patent: February 17, 2004
    Assignee: Nortel Networks Limited
    Inventors: Kevin John Warbrick, Martin J. Fice, Jonathan King