Patents by Inventor Huailin Yuan

Huailin Yuan 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 of implementing IP telephone gatekeeper group and gatekeeper system
    Patent number: 7403534
    Abstract: The present invention provides an IP telephone gatekeeper system and an implementation method thereof, characterized in that two or more individual gatekeepers are connected each other, so as to forming a gatekeeper system that can be regarded as a single gatekeeper system by the controlled gateways, in which the gatekeepers can substitute and backup mutually. A plurality of computer systems are used to realized the cooperation of a plurality of gatekeepers, for breaking through the limit of capacity of individual gatekeeper group and improving the reliability of the whole system, so that backing-up and substituting mutually can be achieved.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: July 22, 2008
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Kewen Hu, Ligang Wang, Qing Zeng, Yi Ji, Haoliang Qin, Jian Ying, Wenjun Zhao, Huailin Yuan
  • Method of implementing ip telephone gatekeeper group and gatekeeper system
    Publication number: 20040264509
    Abstract: The present invention provides an IP telephone gatekeeper system and an implementation method thereof, characterized in that two or more individual gatekeepers are connected each other, so as to forming a gatekeeper system that can be regarded as a single gatekeeper system by the controlled gateways, in which the gatekeepers can substitute and backup mutually. A plurality of computer systems are used to realized the cooperation of a plurality of gatekeepers, for breaking through the limit of capacity of individual gatekeeper group and improving the reliability of the whole system, so that backing-up and substituting mutually can be achieved.
    Type: Application
    Filed: July 27, 2004
    Publication date: December 30, 2004
    Inventors: Kewen Hu, Ligang Wang, Qing Zeng, Yi Ji, Haoliang Qin, Jian Ying, Wenjun Zhao, Huailin Yuan