Patents by Inventor Song Sejun

Song Sejun 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 outage measurement
    Patent number: 7149917
    Abstract: An Outage Measurement System (OMS) monitors and measures outage data at a network processing device. The outage data can be stored in the device and transferred to a Network Management System (NMS) or other correlation tool for deriving outage information. The OMS automates the outage measurement process and is more accurate, efficient and cost effective than pervious outage measurement systems.
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: December 12, 2006
    Assignee: Cisco Technology, Inc.
    Inventors: Jiandong Huang, Song Sejun, Madhav Marathe
  • Method and apparatus for outage measurement
    Publication number: 20040024865
    Abstract: An Outage Measurement System (OMS) monitors and measures outage data at a network processing device. The outage data can be stored in the device and transferred to a Network Management System (NMS) or other correlation tool for deriving outage information. The OMS automates the outage measurement process and is more accurate, efficient and cost effective than pervious outage measurement systems.
    Type: Application
    Filed: July 30, 2002
    Publication date: February 5, 2004
    Inventors: Jiandong Huang, Song Sejun, Madhav Marathe