| 摘要 |
A recording/reproduction method is provided, which comprises the steps of generating a binary signal by converting a reproduction signal to a binary form, generating a synchronization signal using the binary signal, the synchronization signal being in synchronization with a clock signal, measuring a time interval between the binary signal and the synchronization signal and measuring an edge shift amount between the time interval and a clock time interval specified by the clock signal, and changing a parameter of a recording pulse based on the edge shift amount.
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