Patents by Inventor Dujeong Lee

Dujeong 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).

  • Communication device, multicast control method, and scheduling control method
    Patent number: 9246697
    Abstract: A communication device, a multicast control method, and a scheduling control method are disclosed. The communication device includes: a decoding buffer that stores a first multicast packet received from a first node and a second multicast packet received from a second node; an encoder that performs network coding of the first and second multicast packets; and a transmitter that transmits the network-coded packets output from the encoder to the first node and the second node.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: January 26, 2016
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: June Koo Rhee, Dujeong Lee, Kyounghye Kim, Junhyuk Kim
  • COMMUNICATION DEVICE, MULTICAST CONTROL METHOD, AND SCHEDULING CONTROL METHOD
    Publication number: 20140211796
    Abstract: A communication device, a multicast control method, and a scheduling control method are disclosed. The communication device includes: a decoding buffer that stores a first multicast packet received from a first node and a second multicast packet received from a second node; an encoder that performs network coding of the first and second multicast packets; and a transmitter that transmits the network-coded packets output from the encoder to the first node and the second node.
    Type: Application
    Filed: January 24, 2014
    Publication date: July 31, 2014
    Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: June Koo RHEE, Dujeong LEE, Kyounghye KIM, Junhyuk KIM
  • Method and apparatus for multicast transmission in wireless network
    Patent number: 8284680
    Abstract: The present invention provides a method and apparatus for multicast transmission of a transmitting station in a wireless network. The method according to the present invention transmits a plurality of data packets to a plurality of receiving stations, receives information on loss of the plurality of the data packets from at least one of the plurality of the receiving stations, codes the plurality of the data packets into a single coded data packet based on the information on the loss of the plurality of the data packets and transmits an error control frame including the coded data packet to the plurality of the receiving stations. Therefore, when an error occurs at a data packet that a transmitting station transmits to a plurality of receiving stations by a multicast transmission, a number of retransmission of the data packet can be reduced.
    Type: Grant
    Filed: March 4, 2010
    Date of Patent: October 9, 2012
    Assignees: Electronics and Telecommunications Research Institute, Korea Advanced Institute of Science and Technology
    Inventors: Sangwoo Lee, Hyun Seo Oh, June Koo Rhee, Yonghwan Bang, Dujeong Lee
  • METHOD AND APPARATUS FOR MULTICAST TRANSMISSION IN WIRELESS NETWORK
    Publication number: 20100226243
    Abstract: The present invention provides a method and apparatus for multicast transmission of a transmitting station in a wireless network. The method according to the present invention transmits a plurality of data packets to a plurality of receiving stations, receives information on loss of the plurality of the data packets from at least one of the plurality of the receiving stations, codes the plurality of the data packets into a single coded data packet based on the information on the loss of the plurality of the data packets and transmits an error control frame including the coded data packet to the plurality of the receiving stations. Therefore, when an error occurs at a data packet that a transmitting station transmits to a plurality of receiving stations by a multicast transmission, a number of retransmission of the data packet can be reduced.
    Type: Application
    Filed: March 4, 2010
    Publication date: September 9, 2010
    Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sangwoo LEE, Hyun Seo Oh, June Koo Rhee, Yonghwan Bang, Dujeong Lee