Patent ID: 8457189

Claim:
A receiving apparatus, comprising: a timing recovery circuit configured to recover symbol timing of a modulation signal; a carrier recovery circuit configured to correct a frequency shift of an output signal of the timing recovery circuit; a digital equalizer that has a plurality of taps and is configured to correct a distortion of an output signal of the carrier recovery circuit; a control circuit configured to dynamically control the number of taps used in the digital equalizer by providing a first operation mode at the start of reception of the modulation signal and a second operation mode; and an automatic frequency control circuit configured to be provided on an input side of the timing recovery circuit and configured to roughly adjust a frequency of the modulation signal, wherein the control circuit is configured to provide, at the start of reception of the modulation signal, the first operation mode in which the automatic frequency control circuit operates and the operation of the carrier recovery circuit is suspended, and is configured to provide the second operation mode in which the operation of the automatic frequency control circuit is suspended and the carrier recovery circuit operates after the first operation mode has been provided for a certain period.