Patents by Inventor Attaullah Zabihi-Seissan

Attaullah Zabihi-Seissan 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: 10560367
    Abstract: This disclosure generally discloses a bidirectional constrained path search mechanism. The bidirectional constrained path search mechanism may be configured to determine bidirectional paths between a pair of nodes, subject to one or more constraints, such that the bidirectional paths share a common set of resources. The bidirectional constrained path search mechanism may be configured to determine bidirectional paths between a pair of nodes, subject to one or more constraints, by determining a forward path that satisfies a set of forward path constraints associated with the forward path and determining a reverse path that satisfies a set of reverse path constraints associated with the reverse path. The bidirectional constrained path search mechanism may be configured to determine bidirectional paths between a pair of nodes in a single path search iteration, such as via a traversal of a weighted directed graph, thereby improving performance.
    Type: Grant
    Filed: January 18, 2016
    Date of Patent: February 11, 2020
    Assignee: Nokia of America Corporation
    Inventors: Andrew W. Stone, Felix Katz, Ehsan Rezaaifar, Attaullah Zabihi-Seissan
  • Publication number: 20170207993
    Abstract: This disclosure generally discloses a bidirectional constrained path search mechanism. The bidirectional constrained path search mechanism may be configured to determine bidirectional paths between a pair of nodes, subject to one or more constraints, such that the bidirectional paths share a common set of resources. The bidirectional constrained path search mechanism may be configured to determine bidirectional paths between a pair of nodes, subject to one or more constraints, by determining a forward path that satisfies a set of forward path constraints associated with the forward path and determining a reverse path that satisfies a set of reverse path constraints associated with the reverse path. The bidirectional constrained path search mechanism may be configured to determine bidirectional paths between a pair of nodes in a single path search iteration, such as via a traversal of a weighted directed graph, thereby improving performance.
    Type: Application
    Filed: January 18, 2016
    Publication date: July 20, 2017
    Applicant: Alcatel-Lucent Canada Inc.
    Inventors: Andrew W. Stone, Felix Katz, Ehsan Rezaaifar, Attaullah Zabihi-Seissan
  • Patent number: 8543678
    Abstract: The invention is directed to providing a centralized synchronization method for redundant network elements and is particularly advantageous to routers providing network address translation (NAT) services requiring static port forwarding provisioning. Synchronization is provided by a network management system which can handle one or more backup routers or other network elements using a control protocol different from the control protocol used by the active router.
    Type: Grant
    Filed: January 3, 2012
    Date of Patent: September 24, 2013
    Assignee: Alcatel Lucent
    Inventors: Loredana M. Nitu, Anand Thiagarajan, Gurudas Somadder, Zihuang Wang, Attaullah Zabihi-Seissan
  • Publication number: 20130173772
    Abstract: The invention is directed to providing a centralized synchronization method for redundant network elements and is particularly advantageous to routers providing network address translation (NAT) services requiring static port forwarding provisioning. Synchronization is provided by a network management system which can handle one or more backup routers or other network elements using a control protocol different from the control protocol used by the active router.
    Type: Application
    Filed: January 3, 2012
    Publication date: July 4, 2013
    Inventors: Loredana M. Nitu, Anand Thiagarajan, Gurudas Somadder, Zihuang Wang, Attaullah Zabihi-Seissan