Patent ID: 7215623

Claim:
A reproduction signal processing apparatus which equalizes a waveform of an input reproduction signal reproduced from a recording medium and outputs a binary signal based on the equalized waveform, the apparatus comprising: an analog filter for receiving an input reproduction signal; an analog-digital converter for converting an output of the analog filter to a digital reproduction signal; a clock generation section for generating a clock signal for determining the sampling frequency of the analog-digital converter; a waveform equalizer for equalizing a waveform of the digital reproduction signal; and means for performing control such that the sampling frequency of the analog-digital converter is determined and the number of taps of the waveform equalizer is changed, according to the relationship between a bit rate of the input reproduction signal and a characteristic of the analog filter, so that the quantized noise power per unit frequency which is included in a waveform equalization signal output from the waveform equalizer is constant.