| 摘要 |
A data reproducing apparatus for reproducing data from mediums such as digital compact discs, includes a discrete time oscillator for detecting a phase transmission of a reproduced digital signal, and an interpolation unit for interpolating the reproduced digital signal in accordance with a value detected in the discrete time oscillator. The apparatus may also include an adaptive equalizer for removing components which distort, or otherwise impair, data reproduction from a value output from the interpolation unit, an adder for adding a value output from the adaptive equalizer to a critical value decision level, and a phase detector for detecting the reproduced digital signal in accordance with a value output from the adder. The apparatus facilitates asymmetric compensation by interpolating a sampled RF signal in a discrete time oscillator, and by employing an adaptive equalizer.
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