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Most researches for ubiquitous services have been interested in constructing intelligent environments in physical spaces such as conference hall, meeting room, home, and campus. In these spaces people are able to share data easily. However, as cooperative works from a distance make a social issue, we need a data sharing system for an <i>"off-site"</i>(More)
Due to their high computational demand, MPEG-2 video coding solutions have been based mainly on custom hardware (ASIC) systems. Such systems lack the flexibility and adaptability of software-based solutions. Achieving real-time MPEG-2 video encoding in software remains to be a major challenge. A typical MPEG-2 encoder performs 20 to 30 GOPS (Giga operations(More)
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