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μITRON-LP: power-conscious real-time OS based on cooperative voltage scaling for multimedia applications

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3 Author(s)
H. Kawaguchi ; Inst. of Ind. Sci., Univ. of Tokyo, Japan ; Y. Shin ; T. Sakurai

This work presents a cooperative dynamic power management method and its implementation. The implementation consists of design of a real-time OS, applications including MPEG-4, and development of a supporting hardware platform with an off-the-shelf processor. We describe several factors that are important in the implementation and discuss its efficiency through experiment. The experimental results with the prototype system shows that 74% power saving is possible in multi-task multimedia environment.

Published in:

IEEE Transactions on Multimedia  (Volume:7 ,  Issue: 1 )