Patent ID: 6914867

Claim:
A reproducing apparatus comprising: first means for reproducing a signal of a run-length-limited code from a recording medium; second means for sampling the signal reproduced by the first means to generate a sampling-resultant signal; third means for generating an odd-sample signal and an even-sample signal in response to the sampling-resultant signal generated by the second means; a first transversal filter subjecting the odd-sample signal generated by the third means to first partial-response waveform equalization to generate an equalization-resultant odd-sample signal, the first partial-response waveform equalization depending on first tap coefficients; a second transversal filter subjecting the even-sample signal generated by the third means to second partial-response waveform equalization to generate an equalization-resultant even-sample signal, the second partial-response waveform equalization depending on second tap coefficients; a first temporary decision device for calculating a temporary decision value of the equalization-resultant odd-sample signal generated by the first transversal filter; a first subtracter for calculating a first difference between the temporary decision value of the equalization-resultant odd-sample signal and an actual value thereof, and generating a first error signal in response to the calculated first difference; a second temporary decision device for calculating a temporary decision value of the equalization-resultant even-sample signal generated by the second transversal filter; a second subtracter for calculating a second difference between the temporary decision value of the equalization-resultant even-sample signal and an actual value thereof, and generating a second error signal in response to the calculated second difference; fourth means for controlling the first tap coefficients of the first transversal filter in response to the first error signal generated by the first subtracter; fifth means for controlling the second tap coefficients of the second transversal filter in response to the second error signal generated by the second subtracter; a first decoder for decoding the equalization-resultant odd-sample signal generated by the first transversal filter; and a second decoder for decoding the equalization-resultant even-sample signal generated by the second transversal filter.