Reference oscillator

Details Reference oscillator Reference oscillator

2005-08-23

2005-08-23

Nguyen, Simon (Department: 2685)

Oscillators

Automatic frequency stabilization using a phase or frequency...

Afc with logic elements

C455S255000, C455S259000, C455S192200, C331S018000

Reexamination Certificate

active

06933788

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.

REFERENCES:
patent: 5335354 (1994-08-01), Koike
patent: 5493710 (1996-02-01), Takahara et al.
patent: 5649320 (1997-07-01), Korhonen et al.
patent: 5740525 (1998-04-01), Spears
patent: 5875388 (1999-02-01), Daughtry et al.
patent: 6064270 (2000-05-01), Douglas
patent: 6157260 (2000-12-01), Tilley et al.
patent: 6249155 (2001-06-01), Hartman et al.
patent: 6345172 (2002-02-01), Hirai et al.
patent: 6748199 (2004-06-01), Nakano

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