Patents by Inventor Sang-Woo Ahn

Sang-Woo 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).

  • Publication number: 20040098398
    Abstract: A metadata transmitter synchronized with multimedia contents comprises: a multimedia contents authoring unit for generating and editing multimedia contents; a multimedia contents format converter for compressing the multimedia contents, converting them into a transmission format, and outputting them; a metadata authoring unit for generating and editing metadata for describing the multimedia contents, the metadata including transmission types and transmission information; a metadata format converter for converting the metadata into binary codes, converting the converted metadata into a synchronization format for synchronization with the multimedia contents and a transmission format, and outputting them; and a multiplexer for multiplexing the multimedia contents format and the metadata format respectively output from the multimedia contents format converter and the metadata format converter into a stream, and outputting it.
    Type: Application
    Filed: December 4, 2003
    Publication date: May 20, 2004
    Inventors: Sang-Woo Ahn, Mun-Churl Kim, Yong-Suk Kim, Jin-Soo Choi, Jin-Woong Kim
  • Publication number: 20040057457
    Abstract: An apparatus and method for transmitting MPEG-4 data synchronized to MPEG-2 data is disclosed. The apparatus for transmitting MPEG-4 data synchronized to MPEG-2 data includes: an object separation unit for extracting MPEG-4 object data from MP4 data, separating meta information from the object data, and generating program information and synchronization information; a conversion unit for converting the MPEG-4 object data to MPEG-4 packets of which data structure is the same as that of MPEG-2 data, based on the program information and synchronization information; and a multiplexing unit for multiplexing the MPEG-4 packets with the MPEG-2 data.
    Type: Application
    Filed: October 28, 2003
    Publication date: March 25, 2004
    Inventors: Sang-Woo Ahn, Jin Soo Choi, Yong Suk Kim, Munchurl Kim, Jin Woong Kim, Chieteuk Ahn