Patents by Inventor Do Keun Ahn

Do Keun Ahn 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).

  • Data transmission control system in set top box
    Patent number: 6233695
    Abstract: The present invention provides data transmission control system in Set Top Box STB capable of matching output timings of a video or audio signal and a synchronous signal of the video or audio signal by controlling the transmission of the data bitstreams when transmission paths of video data or audio data and the synchronous signal of the video or audio data, are different from each other. Therefore, it is capable of solving the problems generated by asynchronization of a presentation signal. The present invention provides the video data transmission control system in Set Top Box(STB), comprising a bitstream control means in a data transmission path for matching timings of the bitstream ES(Elementary Stream) and a Presentation Time Stamps(PTS), in which the PTS and data ES are selected from compressed data ES respectively, which are transmitted for dynamic image presentation, decoding the ESs according to the PTS, and applying the decoded ES to an output device on the data transmission path.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: May 15, 2001
    Assignee: LG Information & Communications, Ltd.
    Inventor: Do Keun Ahn