Patents by Inventor Byong Khi Oh

Byong Khi Oh 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 protocol for image communication apparatus
    Patent number: 7103105
    Abstract: A communication method and data transmission protocol adapted to an image communication apparatus is provided. More particularly, this protocol provides a structure in which video, audio, and control data are multiplexed for communication, wherein loss of data other than video and audio data can be minimized, video, audio, and control data can be easily separated when the receiver side reads a packet data, and its control data can be set so as to select an image quality and a retransmission privacy mode.
    Type: Grant
    Filed: January 19, 2001
    Date of Patent: September 5, 2006
    Assignee: LG Electronics Inc.
    Inventors: Hyung Hoon Oh, Byong Khi Oh
  • Data transmission protocol in image communication device
    Patent number: 6704793
    Abstract: A data transmission protocol for reducing the MODEM connection time in an image communication is provided by the structure of a flag for informing of a start of a file, header information for discriminating a nature of data information, flag data address information which contains address information corresponding to flag data of the data information, data information, and a flag for informing of a completion of the file.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: March 9, 2004
    Assignee: LG Electronics Inc.
    Inventors: Hyung Hoon Oh, Byong Khi Oh, Jun Seon Kim, Sung June Chang
  • Video coding and decoding method
    Patent number: 6445418
    Abstract: The present invention relates to a video coding and decoding method for an image communication system. Particularly, the present invention relates to a video coding and decoding method for setting a reference compression ratio for prevention of degradation of picture quality during video reconstruction, compressing a present image with change of the compression ratio in accordance with a transmission rate, comparing the compression ratio of the present compressed image with the reference compression ratio, controlling a compensation value of a video signal obtained before the compression to lower complexity of the video signal if the compression ratio of the present compressed image exceeds the reference compression ratio, and applying the compression ratio to the compensation value controlled image in coding video signals in an image communication system, thereby minimizing the degradation of transmitting image quality and increasing transmission efficiency.
    Type: Grant
    Filed: July 9, 1999
    Date of Patent: September 3, 2002
    Assignee: LG Electronics Inc.
    Inventors: Byong Khi Oh, Byoung Ok Lee
  • Data transmission protocol for image communication apparatus
    Publication number: 20010008547
    Abstract: A communication method and data transmission protocol adapted to an image communication apparatus is provided. More particularly, this protocol provides a structure in which video, audio, and control data are multiplexed for communication, wherein loss of data other than video and audio data can be minimized, video, audio, and control data can be easily separated when the receiver side reads a packet data, and its control data can be set so as to select an image quality and a retransmission privacy mode.
    Type: Application
    Filed: January 19, 2001
    Publication date: July 19, 2001
    Inventors: Hyung Hoon Oh, Byong Khi Oh