Patents by Inventor Sang-Kyoun Jo

Sang-Kyoun Jo 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).

  • Access point, L2 switch and method of supporting multicast handover using the access point and L2 switch
    Patent number: 8774130
    Abstract: An access point, a layer 2 switch, and multicast handover supporting method using the access point and the layer 2 switch are provided. According to the method of supporting multicast handover, when a mobile node is handed over from one cell to another while being provided with a multicast service in a wireless mobile communication network, the L2 switch performs multicast traffic routing in response to reception of MAC address information and multicast service source and group information from the access point. Hence, multicast traffic can be supported to be fast and seamlessly handed over within layer 2 network equipment.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: July 8, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Il-Gu Jung, Eun-Jun Rhee, Kyoung-Hee Lee, Sang-Kyoun Jo, Sung-Kuen Lee, Kyeong-Seob Cho, Hyun-Woo Lee, Won Ryu
  • ACCESS POINT, L2 SWITCH AND METHOD OF SUPPORTING MULTICAST HANDOVER USING THE ACCESS POINT AND L2 SWITCH
    Publication number: 20120134313
    Abstract: An access point, a layer 2 switch, and multicast handover supporting method using the access point and the layer 2 switch are provided. According to the method of supporting multicast handover, when a mobile node is handed over from one cell to another while being provided with a multicast service in a wireless mobile communication network, the L2 switch performs multicast traffic routing in response to reception of MAC address information and multicast service source and group information from the access point. Hence, multicast traffic can be supported to be fast and seamlessly handed over within layer 2 network equipment.
    Type: Application
    Filed: November 23, 2011
    Publication date: May 31, 2012
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Il-Gu JUNG, Eun-Jun Rhee, Kyoung-Hee Lee, Sang-Kyoun Jo, Sung-Kuon Lee, Kyeong-Seob Cho, Hyun-Woo Lee, Won Ryu