Minimizing power consumption in asynchronous dataflow architectures
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United States of America Patent
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Sep 16, 2014
Grant Date -
Sep 4, 2014
app pub date -
Mar 1, 2013
filing date -
Mar 1, 2013
priority date (Note) -
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Abstract
A digital signal processing apparatus includes a digital circuit device having one or more elements configured to process digital data; a power supply configured to deliver a controllable operating voltage for the one or more elements; control logic configured to receive feedback signals from each of the one or more elements, the feedback signals indicative of a rate at which data is moving through each individual element; and the control logic configured to output a control signal to the power supply so as to cause the power supply to reduce the operating voltage for the one or more elements responsive to a decreasing workload detected therein, and to cause the power supply to increase the operating voltage for the one or more pipelines responsive to an increasing workload detected therein.
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