Patents by Inventor Chumning Qiao

Chumning Qiao 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).

  • Efficient trap avoidance and shared protection method in survivable networks with shared risk link groups and a survivable network
    Publication number: 20050031339
    Abstract: An efficient trap avoidance and shared protection method in a survivable network with shared risk link groups. The invention includes a fast and efficient heuristic algorithm for avoiding traps, an algorithm, which may also be applied effectively to shared SRLG protection. Compared to other existing algorithms, the algorithm embodied in the present invention runs much faster, and yet falls into few traps, and achieves a much higher bandwidth efficiency. This technology can be applied to MPLS, ATM, SONET, WDM, and other high-speed survivable network designs.
    Type: Application
    Filed: July 9, 2004
    Publication date: February 10, 2005
    Inventors: Chumning Qiao, Dahai Xu, Yizhi Xiong