A Design of the Media Processing Unit for a Multimedia Communication Terminal

Kyeong-Yeol Yu, Jong-Hoon Park

In this paper, we propose a new architecture, and its implementation, for the media-processing unit of the set-top unit (STU) in ETRI's video-on-demand (VOD) system, Interactive Multimedia exPRESS (IMPRESS). The STU in our system has MPEG-2 video quality in movie-on-demand, but low quality in bidirectional communication when considering implementation cost. The media processing unit in our STU consists of three parts: one is system control module, which has a reduced instruction set computing (RISC) processor and controls the overall functions of the unit; another is an MPEG-2 decoder module, which decodes MPEG-2 transport stream (TS) in realtime and presents the contents; and the third is an audio/video communication module, which enables bidirectional video-conferencing.

Print ISSN
Published
1998-03
Content type
Original Research
DOI
10.5594/J04485