Frequency generator and frequency correction method for frequency generator
AssigneeLx Semicon Co., Ltd.
InventorHyeong Seok KIM
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Abstract
A frequency generator and a frequency correction method for a frequency generator, which have the purpose to provide a frequency correction technology that actively responds to continuous frequency fluctuations of a clock signal through a frequency measurement period of at least two unit periods. The frequency generator comprises: an oscillator which generates an oscillator clock signal; and a frequency correction circuit which selectively operates in one of a normal mode and a fast mode, which have different correction periods according to the state of the oscillator clock signal.
Claims20
A frequency generator comprising:
- an oscillator that generates an oscillator clock signal;
- and
- a frequency correction circuit that selectively operates in one of a normal mode and a fast mode with different correction periods according to a state of the oscillator clock signal.
A frequency correction method correcting a frequency of an oscillator in a frequency generator, the frequency generator, the correction method comprising:
- generating an oscillator clock signal, and
- measuring a frequency of the oscillator clock signal in one of a normal mode and a fast mode with different correction periods according to a state of the oscillator clock signal.
Dependencies are inferred from the claim text.