Patents by Inventor Li-Jin Wu Chung

Li-Jin Wu Chung 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).

  • Method and system for silent trunk failure detection
    Patent number: 9306822
    Abstract: A system and method for performing a first diagnostic test on a first class of service on a network link during a current measurement period, performing at least one further diagnostic test on a second class of service on the network link during the current measurement period, determining whether an alert was present during a previous measurement period and generating a current failure alert based on results of the first and the at least one further diagnostic tests if an alert was present during the previous measurement period.
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: April 5, 2016
    Assignee: AT & T Intellectual Property I, L.P.
    Inventors: Chuan-Chuen Chang, Li-Jin Wu Chung
  • Method and System for Silent Trunk Failure Detection
    Publication number: 20130301426
    Abstract: A system and method for performing a first diagnostic test on a first class of service on a network link during a current measurement period, performing at least one further diagnostic test on a second class of service on the network link during the current measurement period, determining whether an alert was present during a previous measurement period and generating a current failure alert based on results of the first and the at least one further diagnostic tests if an alert was present during the previous measurement period.
    Type: Application
    Filed: July 15, 2013
    Publication date: November 14, 2013
    Inventors: Chuan-Chuen CHANG, Li-Jin Wu Chung
  • Method and system for silent trunk failure detection
    Patent number: 8488746
    Abstract: A system and method for performing a first diagnostic test on a first class of service on a network link during a current measurement period, performing at least one further diagnostic test on a second class of service on the network link during the current measurement period, determining whether an alert was present during a previous measurement period and generating a current failure alert based on results of the first and the at least one further diagnostic tests if an alert was present during the previous measurement period.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: July 16, 2013
    Assignee: AT & T Intellectual Property I, L.P.
    Inventors: Chuan-Chuen Chang, Li-Jin Wu Chung