Patents by Inventor Wang Chao

Wang Chao 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: 6957257
    Abstract: The present invention provides a method and system for automatically providing infrastructure maintenance for a customer in response to a customer form/report/ticket in a communications network that includes a core communications (voice and data communications) service and an Access Provider service. Typically, the system includes a Work-Flow Manager and a maintenance program scheduler. The Work-Flow Manager is arranged to trigger, for each customer form/report/ticket, each automatic software program/engine of a plurality of automatic software programs/engines in response to an associated milestone event for the customer form/report/ticket. The maintenance program scheduler is coupled to the Work-Flow Manager and is used for invoking at least one predetermined maintenance software program based upon predetermined criteria being met by the form/report/ticket.
    Type: Grant
    Filed: August 29, 2000
    Date of Patent: October 18, 2005
    Assignee: AT&T Corp.
    Inventors: Clarence W. Buffalo, Frances Centofante, Chin-Wang Chao, Brian T. Hou, Christian P. Kolmodin, Shu-Chih Lin, Elliot P. Olschwang, Fernando Teixeira
  • Patent number: 5182744
    Abstract: A restoration system is provided for enhancing the reliability of a telecommunications network such that particular traffic which is disrupted by, for example, a faulty link, may be quickly rerouted via an alternate route established "on the fly". In particular, each node and link forming the network is monitored, and in the event that such monitoring detects a faulty link or node then a central controller is notified. The controller is arranged to locate spare capacity and establish an alternate route, in which the continuity of the alternate route is confirmed before the disrupted traffic is transferred thereto.
    Type: Grant
    Filed: January 3, 1991
    Date of Patent: January 26, 1993
    Assignee: AT&T Bell Laboratories
    Inventors: James D. Askew, Chin-Wang Chao, David R. Cochran, Peter M. Dollard, Hossein Eslambolchi, William E. Goodson, Robert P. Guenther, Omar M. Mansour, Liem T. Nguyen, Sarma S. Tanuku