Reference oscillator

Details Reference oscillator Reference oscillator

2006-08-29

2006-08-29

Kinkead, Arnold (Department: 2817)

Oscillators

Frequency stabilization

Temperature or current responsive means in circuit

C331S018000, C331S158000, C331S066000, C331S016000, C331S00100A, C455S260000

Reexamination Certificate

active

07098749

ABSTRACT:
A receiver uses an adaptive algorithm to tune a low-cost crystal oscillator according to a temperature compensation profile so as to produce a precision master reference frequency despite temperature, initial tolerance, and aging effects. An automatic frequency control system also tunes the crystal oscillator. The adaptive algorithm adjusts the temperature compensation profile for the crystal oscillator according to the adjustments made by the automatic frequency control should a received signal's quality factor exceed that associated with the temperature compensation profile.

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