| 摘要 |
According to one embodiment, a reproduction unit of a recording medium in which in a field where a pattern signal repeated by a fixed frequency is recorded, reproduction data is recorded so that an integral multiple of a minimum unit of a pattern thereof is a one-byte unit, the reproduction unit includes a detection section for defecting a minimum unit pattern from the pattern signal, a synchronization code determination section for determining a synchronization code following the pattern signal and predicting head timing of data following the synchronization code, a pattern forming section for forming an integral number of phase pattern signals from the minimum unit pattern detected by the detection section, and timing coincidence determination section for determining whether each of the integral number of phase pattern signals coincides with the head timing of the data predicted by the synchronization code determination section.
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