Importance

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Abstract

In a frequency corrector, a counter divides a clock signal CK to be input into a fraction of a natural number larger than one to generate a signal having a clock frequency. The counter corrects the number of clock pulses of the signal having the clock frequency in response to a correction signal to output a first frequency-divided signal. A frequency divider circuit divides the first divided signal to output a unit time signal having another frequency and another frequency-divided signal Db composed of plural frequencies. A correction timing generator decodes the both divided signals to detect a correction timing for the first divided signal, and generates plural correction timing signals different in timing from each other. A correction signal generator generates the correction signal in response to the correction timing signals and correction values to provide the correction signal to the counter.

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First Claim