Patents by Inventor Jean Guy Chavin

Jean Guy Chavin 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 signal recognition within WDM optical nodes
    Patent number: 7072581
    Abstract: The invention allows the checking of the internal performance of a cross-connect for optical networks with respect to both signal performance and proper connections. In a network comprising a number of interconnected cross-connect devices a spare output line of each cross-connect device is arranged to monitor the input port used by a connection within the cross-connect device. This output is coupled to a Performance Monitor (PM) which determines the bit-rate, type of signal (protocol), and further determines the integrity of the signal. By comparing the results of connection monitoring between a series of cross-connect stages, it is possible to deduce or infer the behavior of the equipment involved in the connection.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: July 4, 2006
    Assignee: Nortel Networks Limited
    Inventor: Jean Guy Chavin
  • Apparatus and method for signal recognition within WDM optical nodes
    Publication number: 20020141688
    Abstract: The invention allows the checking of the internal performance of a cross-connect for optical networks with respect to both signal performance and proper connections. In a network comprising a number of interconnected cross-connect devices a spare output line of each cross-connect device is arranged to monitor the input port used by a connection within the cross-connect device. This output is coupled to a Performance Monitor (PM) which determines the bit-rate, type of signal (protocol), and further determines the integrity of the signal. By comparing the results of connection monitoring between a series of cross-connect stages, it is possible to deduce or infer the behavior of the equipment involved in the connection.
    Type: Application
    Filed: December 14, 2001
    Publication date: October 3, 2002
    Inventor: Jean Guy Chavin