Data transmission/reception method and apparatus thereof

1. Field of the Invention Data transmission/reception apparatus according to the present invention MPEG-2 based transmits/receives input data including; at least MPEG-2 based video data and audio data in a low bit rate and in a low error occurrence rate. The data transmission apparatus is comprised of: a division circuit () which separates the input data into video, audio, and user data; FIFO circuits (to ); a combination circuit (); a PES private data attachment circuit ; a PTS generation/attachment circuit (); a PES header attachment circuit (); and a transport header attachment circuit (). On the other hand, the data reception apparatus is comprised of: a transport header separation circuit (); a PES header separation circuit (); a PTS detection circuit (); a PES private data separation circuit, a distribution circuit (); FIFO circuits (to ); a FIFO control circuit; and a combination circuit ().