Patents by Inventor Kijoon Chang

Kijoon 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: 9578136
    Abstract: An embodiment provides a distributed transcoding method using a plurality of servers. The method includes receiving a request for a first video file from a first terminal. The method also includes segmenting the video file based on a play time of at least portion of the video file and a performance rate of a plurality of second servers. The method also includes transmitting the segmented video file to the plurality of second servers, which includes transmitting the segmented video file of a greater size to the second server having a higher performance among the plurality of second servers and transmitting the segmented video file having a smaller size to the server having a lower performance among the plurality of second servers. The method also includes receiving a transcoded video file from the plurality of second servers. The method also includes transmitting the transcoded video files to the first terminal.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: February 21, 2017
    Assignee: Industry-Academic Cooperation Foundation Yonsei University
    Inventors: Jae-Ho Kim, Sun-Mi Kim, Won Woo Ro, Keunsoo Kim, Seung Hun Kim, Jin-Won Kim, Kijoon Chang
  • Publication number: 20130297679
    Abstract: In one embodiment, a distributed transcoding method using a plurality of servers includes receiving a request for a first video file from a first terminal, distributing and requesting a first transcoding of the first video file to at least two second servers according to performance rates of the second servers, before receiving the first video file with the completed first transcoding completed from the second server, receiving a request for a second video file from a second terminal, and distributing and requesting a second transcoding of the second video file to the second servers according to the performance rates of the second servers.
    Type: Application
    Filed: March 22, 2013
    Publication date: November 7, 2013
    Applicants: Industry-Academic Cooperation Foundation, Yonsei University, Samsung Electronics Co., Ltd
    Inventors: Jae-Ho Kim, Sun-Mi Kim, Won Woo Ro, Keunsoo Kim, Seung Hun Kim, Jin-Won Kim, Kijoon Chang