Power efficiency in microprocessors using reduction of hamming distance between data value
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United States of America Patent
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Apr 1, 2008
Grant Date -
Jan 27, 2005
app pub date -
May 2, 2002
filing date -
May 19, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of reducing the power consumption of microprocessor system is provided, wherein: said microprocessor system comprises a microprocessor (2) and a memory (4) connected by a bus (6); said memory (4) contains a plurality of data values, each represented by a number of bits, for transmission to said microprocessor (2) via the bus (6); and at least some of said data values contain unused bits; and wherein said method includes assigning values to said unused bits in such a way as to reduce the Hamming distance between successive data values by a greater extent than setting all of said unused bits to an arbitrary predetermined value.
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