Methods and apparatus for crystal oscillator drift...

Details Methods and apparatus for crystal oscillator drift... Methods and apparatus for crystal oscillator drift...

2007-10-31

2009-06-02

Mis, David (Department: 2817)

Oscillators

Frequency stabilization

Temperature or current responsive means in circuit

C375S344000, C375S354000, C455S257000

Reexamination Certificate

active

07541884

ABSTRACT:
In at least some disclosed embodiments, a method includes receiving a burst of data out of multiple bursts of data subject to long-term frequency drift and short-term frequency drift, determining an intercept of the long-term frequency drift based on, at most, the entire burst, and compensating for the long-term drift of a subsequent burst based on the intercept. The method further includes determining a slope of the short-term frequency drift, and compensating for the short-term frequency drift of a subsequent burst based on the slope.

REFERENCES:
patent: 2004/0001539 (2004-01-01), Sankaran et al.

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