Method of performing dynamic voltage and frequency scaling operation, application processor performing method, and mobile device comprising application processor
US9541992B2 · kind B2 · utility
10Cited by
9References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 10, 2013 |
| Grant date | Jan 10, 2017 |
| Priority date | — |
| Expiry date | Aug 22, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of performing a dynamic voltage and frequency scaling operation comprises controlling a clock management unit (CMU) to predict an operating state of a central processing unit (CPU) and to provide operating frequency information to a power management integrated circuit (PMIC) based on the predicted operating state of the CPU, the operating frequency information indicating a change of an operating frequency of an application processor, and controlling the PMIC to change an operating voltage of the application processor based on the operating frequency information provided from the clock management unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.