Patents by Inventor Chong-Ho Choi

Chong-Ho Choi 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).

  • Communication method and apparatus using IP address of VPN gateway for mobile node in a VPN
    Patent number: 7805754
    Abstract: A communication method and apparatus using the IP address of a gateway for an MN in a VPN are provided. When the MN is to access the VPN, the gateway acting an FA in the VPN performs a Mobile IP registration on behalf of the MN and is allocated a HoA for the MN from an HA. Therefore, the number of addresses required for the Mobile IP registration of the MN is reduced and overlap between an IP-in-IP tunnel for Mobile Internet and an IPsec tunnel for the VPN is avoided. As a result, packet transmission overhead is reduced.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: September 28, 2010
    Assignees: Samsung Electronics Co., Ltd., Seoul National University Industry Foundation
    Inventors: O-Sok Song, Sung-Ho Choi, Eun-Hui Bae, Chong-Ho Choi, Young-Jip Kim, Dong-Young Kim
  • Communication method and apparatus using IP address of VPN gateway for mobile node in a VPN
    Publication number: 20060104252
    Abstract: A communication method and apparatus using the IP address of a gateway for an MN in a VPN are provided. When the MN is to access the VPN, the gateway acting an FA in the VPN performs a Mobile IP registration on behalf of the MN and is allocated a HoA for the MN from an HA. Therefore, the number of addresses required for the Mobile IP registration of the MN is reduced and overlap between an IP-in-IP tunnel for Mobile Internet and an IPsec tunnel for the VPN is avoided. As a result, packet transmission overhead is reduced.
    Type: Application
    Filed: November 14, 2005
    Publication date: May 18, 2006
    Inventors: O-Sok Song, Sung-Ho Choi, Eun-Hui Bae, Chong-Ho Choi, Young-Jip Kim, Dong-Young Kim