Providing fault-tolerant spread spectrum clock signals in a system
US8799700B2 · kind B2 · utility
3Cited by
3References
15Claims
0Family size
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Key dates
| Filing date | Jul 31, 2009 |
| Grant date | Aug 5, 2014 |
| Priority date | — |
| Expiry date | Mar 24, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
To provide fault-tolerant, spread spectrum clock signals, a plurality of processing modules having respective spread spectrum control circuits are provided. Clock signals of redundant clock sources are provided to the plurality of processing modules. Failover control logic selects a corresponding one of the clock signals from the redundant clock sources for use in each of the processing modules. Frequency spreading is applied to the corresponding selected clock signal in each of at least some of the plurality of processing module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.