Patents by Inventor Neil Jackman

Neil Jackman 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).

  • Patent number: 6763190
    Abstract: In a telecommunications network, such as an optical mesh network, satisfying a demand from a start node to an end node, the network is automatically provisioned from a service path to a restoration path after a failure occurs in the service path. Each affected node in the network eventually receives an indication of the occurrence of the failure in the service path. If the node is an intermediate node of the service path, then the node transmits a failure message to its next node along the service path. If the node is the end node of the service path, then the node transmits a restore message to its previous node along the restoration path. If the node is an intermediate node of the restoration path, then the node transmits a restore message to its previous node along the restoration path. In addition, the node reconfigures its cross-connect for the transition from the service path to the restoration path.
    Type: Grant
    Filed: January 5, 2001
    Date of Patent: July 13, 2004
    Assignee: Lucent Technologies Inc.
    Inventors: Niraj Agrawal, John M. Hitchcock, Neil A. Jackman, Steven K. Korotky, Eric S. Tentarelli, Liyan Zhang
  • Publication number: 20040105383
    Abstract: In a telecommunications network, such as an optical mesh network, satisfying a demand from a start node to an end node, the network is automatically provisioned from a service path to a restoration path after a failure occurs in the service path. Each affected node in the network eventually receives an indication of the occurrence of the failure in the service path. If the node is an intermediate node of the service path, then the node transmits a failure message to its next node along the service path. If the node is the end node of the service path, then the node transmits a restore message to its previous node along the restoration path. If the node is an intermediate node of the restoration path, then the node transmits a restore message to its previous node along the restoration path. In addition, the node reconfigures its cross-connect for the transition from the service path to the restoration path.
    Type: Application
    Filed: January 5, 2001
    Publication date: June 3, 2004
    Inventors: Niraj Agrawal, John M. Hitchcock, Neil A. Jackman, Steven K. Korotky, Eric S. Tentarelli, Liyan Zhang
  • Publication number: 20010038471
    Abstract: In a telecommunications network, such as an optical mesh network, at a node along a service path satisfying a demand from a start node to an end node, the node can detect a failure in the service path by any of three different ways: (a) by monitoring incoming payload signals from its previous node along the service path for a loss-of-signal (LOS) condition; (b) by monitoring the incoming payload signals from its previous node along the service path for an in-band alarm indication signal; and (c) by monitoring an out-of-band signaling channel for a failure message transmitted from its previous node along the service path. The node then determines appropriate actions as part of a distributed restoration procedure depending on whether the node is an intermediate node or the end node along the service path. If the node is an intermediate node, then the node passes the out-of-band failure message to its next node along the service path.
    Type: Application
    Filed: January 5, 2001
    Publication date: November 8, 2001
    Inventors: Niraj Agrawal, Neil A. Jackman, Steven K. Korotky, Byung H. Lee, Eric S. Tentarelli, Liyan Zhang
  • Patent number: 6008934
    Abstract: The subject matter is directed to a parallel array of optical amplifiers and is also directed to equally sharing the optical power supplied by a plurality of optical pumps among the array of optical amplifiers such that if one of the pumps fails the power outputted by the remaining pumps is still equally shared among the array of optical amplifiers.
    Type: Grant
    Filed: November 7, 1997
    Date of Patent: December 28, 1999
    Assignee: Lucent Technologies Inc.
    Inventors: Mohammad Taghi Fatehi, Neil Jackman, Andrew Jozan, Virginia Laura Nichols, Sunita H. Patel, Mario Alberto Restrepo, Ravindra K. Vora