A magnetic recording and reproducing apparatus includes {TAIL ~ an equalization section} for equalizing a signal sequence which is reproduced from a magnetic recording medium and outputting an equalized waveform, and a conversion section for converting {HEAD ~ the equalized waveform} into a maximum likelihood sequence by carrying out metric calculation based on average values of the equalized waveform 
A magnetic recording and reproducing apparatus includes { TAIL ~ an equalization section } for equalizing a signal sequence which is reproduced from a magnetic recording medium and outputting an equalized waveform , and a conversion section for converting { HEAD ~ the equalized waveform } into a maximum likelihood sequence by carrying out metric calculation based on average values of the equalized waveform
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