Power efficiency in microprocessors using reduction of hamming distance between data value
US7353411B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 2002 |
| Grant date | Apr 1, 2008 |
| Priority date | — |
| Expiry date | Feb 9, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/30145
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.