CPC H04L 25/242 (2013.01) [H04L 25/0272 (2013.01)] | 18 Claims |
1. A signal relay apparatus having frequency calibration mechanism, comprising:
a clock generation circuit configured to generate a source clock signal;
a frequency generation circuit configured to receive the source clock signal and generate a target frequency signal according to a conversion parameter;
a clock measuring circuit configured to measure a first frequency offset of a source frequency of the source clock signal relative to a first predetermined frequency according to an external reference clock signal;
a frequency adjusting circuit configured to, when the first frequency offset is not within a first predetermined range, adjust the conversion parameter of the frequency generation circuit according to the first frequency offset such that a second frequency offset of a target frequency of the target frequency signal relative to a second predetermined frequency is within a second predetermined range; and
a transmission circuit configured to perform signal transmission according to the target frequency signal.
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