Device and a method for managing power consumption of a plurality of data processing units
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United States of America Patent
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Mar 6, 2012
Grant Date -
Nov 12, 2009
app pub date -
Jun 26, 2007
filing date -
Jun 27, 2006
priority date (Note) -
Expired
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Abstract
A device and a method for managing power consumption of a plurality of data processing units. A scheduler (280) schedules a first process step for a first data processing unit (200) consuming a high power within a first deadline and a second process step for a second data processing unit (240) also consuming a high power within a second deadline. The scheduler further schedules the first process step and the second process step such that the two process steps do not occur concurrently thereby reducing the peak power draw from a power supply while preserving deadlines. This is particularly beneficial in battery-operated equipment, such as portable electronic multimedia devices, since peak power drain has been found to be an important factor in determining the battery capacity.
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