| 摘要 |
Herein disclosed a phase difference detection apparatus for detecting a phase difference between a first signal and a second signal, which may include a waveform equalization section configured to input the first and second signals as a target waveform and an input waveform, respectively, to perform a waveform equalization process using a FIR filter so that the input waveform may coincide with the target waveform; and a phase difference detection section configured to perform a predetermined calculation based on predetermined tap coefficients of the FIR filter in the waveform equalization section to calculate an asymmetric component of the tap coefficients of the FIR filter thereby to detect the phase difference between the first and second signals.
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