Patents by Inventor Jo-En Sung

Jo-En Sung 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 and method for preventing call from being dropped in mobile communication system
    Publication number: 20070173250
    Abstract: Disclosed is an apparatus for preventing a call from being dropped in a mobile communication system, including a Mobile Station (MS) for reporting a temporal reception-impossible mode to a network if the MS enters a temporal reception-impossible state in a state where a call has been connected, and maintaining a Radio Link Timeout (RLT) value during a preset time period; and the network for maintaining the call with the MS during a preset time period after the temporal reception-impossible mode is reported from the MS. According to the apparatus, a call is maintained during a preset time period when an MS is in a temporal reception-impossible state, so that it is possible to prevent a call from being dropped.
    Type: Application
    Filed: January 8, 2007
    Publication date: July 26, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-Hyun Lee, Yeon-Suk Choi, Jo-En Sung