Patents by Inventor Kun-Nyeong Chang

Kun-Nyeong Chang 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).

  • Patent number: 7499421
    Abstract: Provided is a resource allocation apparatus and method in a multi frequency-time division multiple access (MF-TDMA) broadband satellite system, which can employ timeslots in a return link with a maximum throughput promptly, by dividing a timeslot assignment problem minimizing a weighted sum in response to a resource allocation request from terminals into a first sub-problem for deciding the number of timeslots to be allocated to each class of each terminal and a second sub-problem for selecting timeslots to be allocated to each terminal. The method includes the steps of accumulating an amount of resource requests created during a super-frame period for each terminal, deciding a resource allocation amount to be allocated to each class, and selecting and mapping timeslots to be allocated to each terminal based on the decided resource allocation amount. This invention may advantageously be applied to the MF-TDMA broadband satellite system.
    Type: Grant
    Filed: September 1, 2005
    Date of Patent: March 3, 2009
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Ki-Dong Lee, Deock-Gil Oh, Ho-Jin Lee, Kun-Nyeong Chang
  • Publication number: 20060126552
    Abstract: Provided is a resource allocation apparatus and method in a multi frequency-time division multiple access (MF-TDMA) broadband satellite system, which can employ timeslots in a return link with a maximum throughput promptly, by dividing a timeslot assignment problem minimizing a weighted sum in response to a resource allocation request from terminals into a first sub-problem for deciding the number of timeslots to be allocated to each class of each terminal and a second sub-problem for selecting timeslots to be allocated to each terminal. The method includes the steps of accumulating an amount of resource requests created during a super-frame period for each terminal, deciding a resource allocation amount to be allocated to each class, and selecting and mapping timeslots to be allocated to each terminal based on the decided resource allocation amount. This invention may advantageously be applied to the MF-TDMA broadband satellite system.
    Type: Application
    Filed: September 1, 2005
    Publication date: June 15, 2006
    Inventors: Ki-Dong Lee, Deock-Gil Oh, Ho-Jin Lee, Kun-Nyeong Chang