Methods and systems for performing dynamic power management via frequency and voltage scaling
US7155617B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2003 |
| Grant date | Dec 26, 2006 |
| Priority date | — |
| Expiry date | Aug 19, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods and systems are provided for dynamically managing the power consumption of a digital system. These methods and systems broadly provide for varying the frequency and voltage of one or more clocks of a digital system upon request by an entity of the digital system. An entity may request that the frequency of a clock of the processor of the digital system be changed. After the frequency is changed, the voltage point of the voltage regulator of the digital system is automatically changed to the lowest voltage point required for the new frequency if there is a single clock on the processor. If the processor is comprised of multiple processing cores with associated clocks, the frequency is changed to the lowest voltage point required by all frequencies of all clocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.