Calibrating control loops

Oscillators – Automatic frequency stabilization using a phase or frequency... – Particular error voltage control

Reexamination Certificate

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C331S00100A, C331S025000, C360S051000

Reexamination Certificate

active

07737793

ABSTRACT:
Methods, systems, and apparatus, including computer program products, are described for calibrating control loops, specifically phase-locked loops. In one aspect, an apparatus is provided that includes an oscillator model that generates a predicted phase based on an input, a first averaging submodule that generates an average predicted phase over a predetermined number of samples, and a first summing submodule that receives a first corrected phase error and generates a predicted repetitive phase disturbance using the first corrected phase error, the predicted phase, and the average predicted phase.

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