Patent ID: 6876618

Claim:
A reproducing apparatus comprising: means for reproducing a signal from a recording medium to get a reproduced signal; means for sampling the reproduced signal in response to a clock signal to get a sampling-resultant signal; a transversal filter including a delay line having taps and delaying the sampling-resultant signal, multipliers for multiplying only alternate ones among signals appearing at the taps by tap coefficients to get multiplication results, and an adder for adding the multiplication results into a filtering-resultant signal; a temporary decision device for calculating a temporary decision value of the filtering-resultant signal according to a temporary decision procedure, for calculating a difference between the temporary decision value of the filtering-resultant signal and an actual value thereof, and for generating an error signal in response to the calculated difference; and means for controlling the tap coefficients used in the transversal filter in response to the error signal and the reproduced signal to minimize the error signal.