Patents by Inventor Sung H. Chang

Sung H. 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).

  • Bit allocation method for controlling transmission rate of video encoder
    Patent number: 5532746
    Abstract: A bit allocation method for controlling a transmission rate of a video encoder having an intra mode, a predicted mode and a bidirectionally predicted mode. If the intra mode is selected, it is checked whether a scene change indicating signal is outputted. If the scene change indicating signal is not outputted, a bit amount corresponding to the intra mode is allocated to video data and the video data is coded in the intra mode. If the scene change indicating signal is outputted, a bit amount corresponding to the predicted mode is allocated to the video data, the scene change indicating signal is initialized and the video data is coded in the predicted mode. If a scene change is not present in the case where the predicted mode is selected, the bit amount corresponding to the predicted mode is allocated to the video data and the video data is coded in the predicted mode.
    Type: Grant
    Filed: November 9, 1994
    Date of Patent: July 2, 1996
    Assignee: Korea Telecommunication Authority
    Inventor: Sung H. Chang
  • Bench with storage compartment
    Patent number: D423237
    Type: Grant
    Filed: November 17, 1998
    Date of Patent: April 25, 2000
    Inventor: Sung H. Chang