| 摘要 |
An apparatus and a method for generating a modulation signal, for example, an eight-to-fourteen modulation (EFM) signal using a tangential push-pull (TPP) signal. The apparatus may include a TPP peak detector detecting peaks of the TPP signal; and a signal generator generating the modulation signal by determining the detected peaks of the TPP signal as edges of the modulation signal. The apparatus may determine peaks of a TPP signal as edges of a modulation signal to generate the modulation signal, thereby reducing or minimizing timing jitter caused by an asymmetry of marks or pits.
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