Method for the detection of an incorrect oscillator frequency and clock generation system
US7145401B2 · kind B2 · utility
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27Claims
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Key dates
| Filing date | Jan 21, 2005 |
| Grant date | Dec 5, 2006 |
| Priority date | — |
| Expiry date | Apr 9, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/04
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a clock generation system comprises a redundant clock source (RCS) device for receiving multiple timing signals and for generating at least one clock from the timing signals for distribution to other circuits, and first and second oscillator devices, wherein the RCS device switches between timing signals from the first and second oscillator devices in response to timing signal failure, wherein the RCS device filters timing signals from the first and second oscillator devices using respective bandpass filters to detect an incorrect oscillator frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.