Calibration of oscillator devices

Oscillators – Automatic frequency stabilization using a phase or frequency... – Tuning compensation

Reexamination Certificate

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C331S044000

Reexamination Certificate

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10675543

ABSTRACT:
A clock device having a resonating device such as a crystal of SAW supplying a controllable oscillator such as a digitally controlled oscillator is calibrated by supplying a calibration clock. A phase-locked loop is utilized to generate one or more correction factors causing the PLL to lock to the calibration clock. The one or more correction factors are then stored in non-volatile memory.

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