Redundant clock source

Details Redundant clock source Redundant clock source

2008-07-08

2008-07-08

Mis, David (Department: 2817)

Oscillators

Plural oscillators

Selectively connected to common output or oscillator...

C331S056000, C331S077000

Reexamination Certificate

active

07397314

ABSTRACT:
A redundant clock source provides a stable clock source for digital system. The clock source uses two oscillators to generate a clock signal. If one of the oscillators fails, the clock signal is generated from the other oscillator until the failed oscillator is replaced. Special filtering of the waveforms produced by the oscillators makes the clock source is resistant to jitter from the oscillators and transients that occur when an oscillator fails. This allows the clock source to not only use a redundant oscillator in an attempt to eliminate a single point of failure, but to also provide a stable clock signal even if one oscillator fails.

REFERENCES:
patent: 3940558 (1976-02-01), Gabbard et al.
patent: 4748644 (1988-05-01), Silver et al.
patent: 5319678 (1994-06-01), Ho et al.
patent: 5434520 (1995-07-01), Yetter et al.
patent: 5497128 (1996-03-01), Sasaki
patent: 5625805 (1997-04-01), Fenwick et al.
patent: 5909472 (1999-06-01), Arnett
patent: 5969558 (1999-10-01), Abe
patent: 6104251 (2000-08-01), Ramey et al.
patent: 6239387 (2001-05-01), Wissell
patent: 6311287 (2001-10-01), Dischler et al.
patent: 6407575 (2002-06-01), Wissell et al.
patent: 2004/0046613 (2004-03-01), Wissell

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