Patents by Inventor Yong In CHOI

Yong In CHOI 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 and system for providing multicast and broadcast service using scalable video coding
    Patent number: 8611425
    Abstract: A method and system for efficiently transmitting data, to which scalable image coding has been applied over a single frequency network is provided. The system includes a control server which re-packetizes data packets, received from a multimedia server, into a scalable bit stream by separately encoding the data packets into a base layer and one or more enhancement layers, and at least one base station which adaptively multicasts and broadcasts the scalable bit stream, received from the control server, to a plurality of terminals located in the area of a cell. The at least one base station multicasts and broadcasts the base layer across the area of the cell, and adaptively transmits the one or more enhancement layers depending on channel status or terminal performance of the plurality of terminals.
    Type: Grant
    Filed: November 25, 2011
    Date of Patent: December 17, 2013
    Assignee: KT Corporation
    Inventors: Ju Heon Kim, Chung Gu Kang, Jin Woo Kim, Jin Su Jung, Yong In Choi
  • METHOD AND SYSTEM FOR PROVIDING MULTICAST AND BROADCAST SERVICE USING SCALABLE VIDEO CODING
    Publication number: 20120163268
    Abstract: A method and system for efficiently transmitting data, to which scalable image coding has been applied over a single frequency network is provided. The system includes a control server which re-packetizes data packets, received from a multimedia server, into a scalable bit stream by separately encoding the data packets into a base layer and one or more enhancement layers, and at least one base station which adaptively multicasts and broadcasts the scalable bit stream, received from the control server, to a plurality of terminals located in the area of a cell. The at least one base station multicasts and broadcasts the base layer across the area of the cell, and adaptively transmits the one or more enhancement layers depending on channel status or terminal performance of the plurality of terminals.
    Type: Application
    Filed: November 25, 2011
    Publication date: June 28, 2012
    Applicant: KT CORPORATION
    Inventors: Ju Heon KIM, Chung Gu KANG, Jin Woo KIM, Jin Su JUNG, Yong In CHOI