Method for the detection of an incorrect oscillator frequency and clock generation system
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United States of America Patent
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Dec 5, 2006
Grant Date -
Jul 27, 2006
app pub date -
Jan 21, 2005
filing date -
Jan 21, 2005
priority date (Note) -
Expired
status (Latency Note)
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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.
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