Patents by Inventor DooJung Lee

DooJung Lee 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).

  • Wireless mesh network system, virtual node generating method, thereof, unicast packet routing method, and scheduling method thereof
    Patent number: 8509064
    Abstract: A wireless mesh network system generates at least one virtual node within a transmission area of a specific mesh node when no mesh nodes exist in two or three continuous quadrants within the transmission area with reference to the specific mesh node. Also, the system performs routing by combining uplink and downlink routing methods so as to support unicast between the mesh nodes in a domain. Further, a channel access order of the mesh nodes is determined based on the potential values allocated to the mesh nodes forming the wireless mesh network according to the field theory. In this instance, the channel access order can be established by a central control method by a central processor for controlling the wireless mesh network or a distributed control method using contention per mesh node.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: August 13, 2013
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: June Koo Rhee, Sangsu Jung, Jihoon Sung, Doojung Lee
  • Communication method using code packet in wireless network
    Patent number: 8332713
    Abstract: The present invention, in preferred aspects, provides a communication method using a network coding packet in a wireless network, with reduced occurrence of negative acknowledgements, between a access point and plural mobile terminals.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: December 11, 2012
    Assignees: Hyundai Motor Company
    Inventors: Sung Bo Yang, June-Koo Rhee, YongHwan Bang, DooJung Lee
  • COMMUNICATION METHOD USING CODE PACKET IN WIRELESS NETWORK
    Publication number: 20100235703
    Abstract: The present invention, in preferred aspects, provides a communication method using a network coding packet in a wireless network, with reduced occurrence of negative acknowledgements, between a access point and plural mobile terminals.
    Type: Application
    Filed: March 11, 2010
    Publication date: September 16, 2010
    Applicants: Hyundai Motor Company, KAIST
    Inventors: Sung Bo Yang, June-Koo Rhee, YongHwan Bang, DooJung Lee