Patents by Inventor Guoqiang G. Q. Wang

Guoqiang G. Q. Wang 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: 7110670
    Abstract: A technique for establishing automatic service connectivity in a network between multiple network elements is disclosed. Each network element utilizes routing and distribution protocols to discover its neighbors and establish a topology. Optical fibers connect the network elements. Each optical fiber carries multiple wavelengths of signals, wherein the network elements communicate with a server. The method comprises: storing information pertaining to each of the network elements at the server; registering network elements by collecting information about each network element; receiving a connectivity request from a first registered node for connection with a second registered node; determining compatibility of the first and second registered node; and instructing network elements upon verifying compatibility to search for an end-to-end wavelength path and establish a connection between the first registered node and the second registered node.
    Type: Grant
    Filed: October 10, 2001
    Date of Patent: September 19, 2006
    Assignee: Nortel Networks Limited
    Inventors: How Kee Au, Guoqiang G. Q. Wang, Kent E. Felske, Stanislus K. Xavier
  • Patent number: 6762877
    Abstract: A technique for selectively frequency translating optical channels in an optical network is disclosed. In one exemplary embodiment, the technique is realized as a method for selectively frequency translating optical channels in a system having W optical frequencies. The method comprises selectively directing an optical channel operating at a respective one of the W optical frequencies based at least in part upon the respective optical frequency of the optical channel. The method also comprises shifting the respective optical frequency of the selectively directed optical channel by an amount defined by ±2i&Dgr;f, wherein &Dgr;f is an optical frequency spacing between adjacent optical channels, and i=0, 1, . . . log2W−1.
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: July 13, 2004
    Assignee: Nortel Networks Limited
    Inventors: Abel C. Dasylva, Delfin Y. Montuno, Guoqiang G. Q. Wang, Prasad Kodaypak