Patents by Inventor Nam H. Park

Nam H. Park 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).

  • Apparatus for and method of duplex operation and management for signalling message exchange no. 1 system
    Patent number: 5583986
    Abstract: An apparatus for and a method of duplex operation and management for an SMX-1 system, capable of minimizing a failure of the system and ensuring the consistency of data between the contents of database and the data being currently operated by two operation management subsystem modules (OMMs) operated in a fashion that when a failure occurs in one of the OMMs, the other OMM executes the function to be executed by the one OMM. The OMMs are connected to the target system by a highway interface unit and connected to a remote signalling network operations system (SIGNOS) by an X.25 network using a modem, one of the OMMs being in service to execute a management of network resources and a management of states of signalling networks, while the other OMM being standby.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 10, 1996
    Assignees: Electronics and Telecommunications Research Institute, Korea Telecommunication Authority
    Inventors: Nam H. Park, Hyun J. Oh, Sun H. Yang