Patents by Inventor Gun-Il Yoo

Gun-Il Yoo 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).

  • Method for requesting grant for MAC protocol in PON
    Patent number: 6721504
    Abstract: A method for requesting a grant for Medium Access Control (MAC) being applied to a Passive Optical Network (PON) system. The method includes the steps of: a) deciding a period of a mini slot (Tms), which is necessary for a plurality of Optical Network Units (ONU) to transmit upstream cells to an Optical Line Termination (OLT); b) deciding a period of a divided slot (Tds) and a link overhead (Co) based on the period of the mini slot (Tms); c) calculating a length of the mini slot based on information to be transmitted to the OLT and a protocol being used; and d) requesting a grant for a MAC protocol between the plurality of the ONUs by calculating and allocating optimal parameters based on the length of the mini slot.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: April 13, 2004
    Assignee: Korea Telecom
    Inventors: Jin-Hee Kim, Hae Chung, Gun-Il Yoo, Sang-Ho Koh, Sun-Cheol Gweon
  • Method for requesting grant for MAC protocol in PON
    Publication number: 20020030875
    Abstract: A method for requesting a grant for Medium Access Control (MAC) being applied to a Passive Optical Network (PON) system. The method includes the steps of: a) deciding a period of a mini slot (Tms), which is necessary for a plurality of Optical Network Units (ONU) to transmit upstream cells to an Optical Line Termination (OLT); b) deciding a period of a divided slot (Tds) and a link overhead (Co) based on the period of the mini slot (Tms); c) calculating a length of the mini slot based on information to be transmitted to the OLT and a protocol being used; and d) requesting a grant for a MAC protocol between the plurality of the ONUs by calculating and allocating optimal parameters based on the length of the mini slot.
    Type: Application
    Filed: December 14, 2000
    Publication date: March 14, 2002
    Inventors: Jin-Hee Kim, Hae Chung, Gun-Il Yoo, Sang-Ho Koh, Sun-Cheol Gweon