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Design rule for frequency-voltage cooperative power control and its application to an MPEG-4 decoder

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8 Author(s)
Aisaka, K. ; Central Res. Lab., Hitachi Ltd., Tokyo, Japan ; Aritsuka, T. ; Misaka, S. ; Toyama, K.
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Frequency-voltage cooperative power control (FVC) is considered a powerful method to reduce the power consumption of a program, because it utilizes the information of software loads dynamically. The authors first show through a mathematical analysis that FVC with only two frequency-voltage sets is sufficient for current low-Vdd CPU chips. Then we show an experimental result that FVC feedback control on an MPEG-4 video decoder can reduce the power to one-fourth.

Published in:

VLSI Circuits Digest of Technical Papers, 2002. Symposium on

Date of Conference:

13-15 June 2002