Method of changing an operating frequency for performing a dynamic voltage and frequency scaling, system on-chip, and mobile device having the same
US9588578B2 · kind B2 · utility
2Cited by
7References
20Claims
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Key dates
| Filing date | Nov 4, 2014 |
| Grant date | Mar 7, 2017 |
| Priority date | — |
| Expiry date | Apr 25, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of changing an operating frequency for performing a dynamic voltage and frequency scaling on a central processing unit included in a system on-chip is provided. A previous maximum peak workload of the central processing unit is detected in a history period of the dynamic voltage and frequency scaling when the operating frequency of the central processing unit is determined to be increased, and an increased operating frequency is applied to the central processing unit. The increased operating frequency is calculated based on the previous maximum peak workload of the central processing unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.