Patent ID: 8014252

Claim:
An information reproducing apparatus comprising: a correcting device for correcting waveform distortion occurring in a read signal corresponding to at least a long mark, of a read signal read from a recording medium; an amplitude limiting device for limiting an amplitude level of the read signal in which the waveform distortion is corrected, by a predetermined amplitude limit value, thereby obtaining an amplitude limit signal; and a filtering device for performing a high-frequency emphasis filtering process on the amplitude limit signal, thereby obtaining an equalization-corrected signal, wherein said correcting device corrects the waveform distortion by correcting a signal component of the read signal, the signal component is between a time point after a lapse of at least a time corresponding to a data length of record data with the shortest run length from a first reference cross point and a time point of reaching a second reference cross point located next to the first reference cross point due to the lapse of at least the time corresponding to the data length of the record data with the shortest run length.