Polling an I/O range for data messages for input to and processing at different clock frequencies
US11138138B2 · kind B2 · utility
2Cited by
23References
20Claims
0Family size
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Key dates
| Filing date | Mar 6, 2020 |
| Grant date | Oct 5, 2021 |
| Priority date | — |
| Expiry date | Mar 24, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Control circuitry controls the operations of a central processing unit, CPU, which is associated with a nominal clock frequency. The CPU is further coupled to an I/O range and configured to deliver input to an application. The control circuitry controls the CPU to poll the I/O range for input to the application. The control circuitry also monitors whether or not each poll results in input to the application and adjusts a clock frequency at which the CPU operates to a clock frequency lower than the nominal clock frequency if a pre-defined number of polls resulting in no input is detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.