Patents by Inventor Xi S. Chen

Xi S. Chen 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).

  • System and method for providing detection of faults and switching of fabrics in a redundant-architecture communication system
    Patent number: 7085225
    Abstract: A system and method of selecting a routing datapath between an active datapath and a redundant datapath for a communication device are provided. The system and method are embodied in a first step of monitoring for a fault occurring in the active datapath and the redundant datapath and upon detection of the fault, a second step of evaluating severity of the fault against a threshold. Further, if the severity of the fault exceeds the threshold and if the fault is associated with the active datapath, then switching the routing datapath from the active datapath to the redundant datapath. If the severity of the fault exceeds the threshold and if the fault is associated with the redundant datapath, then switching the routing datapath of the communications from redundant datapath to the active datapath.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: August 1, 2006
    Assignee: Alcatel Canada Inc.
    Inventors: William S Schaller, Francois Z Meguerditchian, Xi S. Chen, Dan G. M. Gravelle
  • System and method for providing detection of faults and switching of fabrics in a redundant-architecture communication system
    Publication number: 20030112746
    Abstract: A system and method of selecting a routing datapath between an active datapath and a redundant datapath for a communication device are provided. The system and method are embodied in a first step of monitoring for a fault occurring in the active datapath and the redundant datapath and upon detection of the fault, a second step of evaluating severity of the fault against a threshold. Further, if the severity of the fault exceeds the threshold and if the fault is associated with the active datapath, then switching the routing datapath from the active datapath to the redundant datapath. If the severity of the fault exceeds the threshold and if the fault is associated with the redundant datapath, then switching the routing datapath of the communications from redundant datapath to the active datapath.
    Type: Application
    Filed: September 27, 2001
    Publication date: June 19, 2003
    Inventors: William S. Schaller, Francois Z. Meguerditchian, Xi S. Chen, Dan G.M. Gravelle