Patent ID: 8472563

Claim:
A signal processing apparatus, including: a first baseline wander correcting unit which corrects baseline wander by a feedforward control, said first baseline wander correcting unit being provided in a processing path in which a predetermined processing is performed on an input signal; and a second baseline wander correcting unit, provided anterior to said first baseline wander unit, which corrects the baseline wander by a feedback control, said first baseline wander correcting unit including: a baseline wander derivation unit which derives an amount of baseline wander; a fine correction amount adjuster which calculates a first value corresponding to a first average value of the amount of baseline wander derived by the baseline wander derivation unit and calculates a fine-adjusted correction amount according to the first value; and a fine wander corrector which corrects the baseline wander by using the fine-adjusted correction amount, and said second baseline wander correcting unit including: a coarse correction amount adjuster which calculates a second value corresponding to a second average value of the amount of baseline wander derived by the baseline wander derivation unit and calculates a coarse-adjusted correction amount according to the second value; and a coarse corrector which corrects the baseline wander by using the coarse-adjusted correction amount.