Patents by Inventor Weimin Yu

Weimin Yu 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 apparatus for detecting device intrusion to a network interface terminal
    Patent number: 9098729
    Abstract: A network interface terminal (“NIT”) able to provide network service includes an intrusion shrapnel, elastic element, intrusion plate, and bolt is disclosed. The intrusion shrapnel, in one embodiment, has a cylindrical body with an opening through center of the cylindrical body. First and second discs are attached to each end of the cylindrical body. The elastic element, such as a spring, is situated between the first disc and a frame applying a force pulling the intrusion shrapnel in a disengaging direction. The intrusion plate which is electrically coupled to a PCB is situated adjacent to the second disc. The bolt having a helical ridge thread passes through the open of the cylindrical body and makes the second disc to electrically contact with the intrusion plate.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: August 4, 2015
    Assignee: Tellabs Operations INC.
    Inventors: Juan Xia, Yangong Zhu, Weimin Yu
  • Method and Apparatus for Detecting Device Intrusion To A Network Interface Terminal
    Publication number: 20140366163
    Abstract: A network interface terminal (“NIT”) able to provide network service includes an intrusion shrapnel, elastic element, intrusion plate, and bolt is disclosed. The intrusion shrapnel, in one embodiment, has a cylindrical body with an opening through center of the cylindrical body. First and second discs are attached to each end of the cylindrical body. The elastic element, such as a spring, is situated between the first disc and a frame applying a force pulling the intrusion shrapnel in a disengaging direction. The intrusion plate which is electrically coupled to a PCB is situated adjacent to the second disc. The bolt having a helical ridge thread passes through the open of the cylindrical body and makes the second disc to electrically contact with the intrusion plate.
    Type: Application
    Filed: June 6, 2013
    Publication date: December 11, 2014
    Applicant: Tellabs Bedford, Inc.
    Inventors: Juan Xia, Yangong Zhu, Weimin Yu
  • Method and system for path change root-cause identification in packet networks
    Patent number: 7450495
    Abstract: A method and system for identifying the root-cause event that affected a path change in a multi-area Internet protocol (IP) autonomous system (AS) operated according to a link state routing protocol such as the Open Shortest Path First (OSPF) protocol is disclosed. The method and system may enable a user, such as a network administrator, to explicitly identify which routing protocol events are responsible for changes to paths that are being monitored.
    Type: Grant
    Filed: March 15, 2004
    Date of Patent: November 11, 2008
    Assignee: Iptivia, Inc.
    Inventors: Roch Guerin, Rajendran Rajan, Weimin Yu
  • Method and system for path change root-cause identification in packet networks
    Publication number: 20050201274
    Abstract: A method and system for identifying the root-cause event that affected a path change in a multi-area Internet protocol (IP) autonomous system (AS) operated according to a link state routing protocol such as the Open Shortest Path First (OSPF) protocol is disclosed. The method and system may enable a user, such as a network administrator, to explicitly identify which routing protocol events are responsible for changes to paths that are being monitored.
    Type: Application
    Filed: March 15, 2004
    Publication date: September 15, 2005
    Inventors: Roch Guerin, Rajendran Rajan, Weimin Yu