Information reproducing apparatus and information reproducing method

An information reproducing apparatus comprising a reproduced signal output means for reading information recorded on a recording medium and outputting a reproduced signal and a PRML signal processing means for performing signal processing by the PRML system, said apparatus comprising:

• an analog offset correction means for performing offset correction for the reproduced signal outputted from said reproduced signal output means before AD conversion;
• a digital offset correction means for performing offset correction for a digital reproduced signal, said digital reproduced signal being obtained after AD conversion of the reproduced signal outputted from said reproduced signal output means;
• an offset detection means for detecting, from a corrected reproduced signal, an offset control amount contained in said corrected reproduced signal, said corrected reproduced signal being obtained after correction by said digital offset correction means;
• and
• a division means for dividing offset data indicating the offset control amount detected by said offset detection means into first offset data of a least significant bit unit or greater and second offset data less than said least significant bit unit, said least significant bit unit being a unit for the AD conversion of the reproduced signal,
• wherein said digital offset correction means is capable of the offset correction using the first offset data divided by said division means and said analog offset correction means is capable of the offset correction using the second offset data.