Multi-tasking method according to simple priority inheritance scheme and embedded system therefor
US8612982B2 · kind B2 · utility
2Cited by
1References
9Claims
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Key dates
| Filing date | Nov 26, 2007 |
| Grant date | Dec 17, 2013 |
| Priority date | — |
| Expiry date | Feb 10, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/524
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A multi-tasking method performs a plurality of tasks according to priority of each of the plurality of tasks. It is determined whether a resource that is to be used by a current task is being used by another task, a priority of the current task is compared to a priority of the task that is using the resource according to a result of the determination, and according to a result of the comparison, the priority of the task that is using the resource is increased to a highest priority of priorities of all tasks trying to occupy a CPU. Accordingly, conventional problems in the BPI and IIP schemes can be solved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.