Patent ID: 7535812

Claim:
A signal processing method utilizing a partial response to record information on a medium and then regenerate the information from the medium, wherein a record signal recorded on the medium is subjected to the convolution of (1−D) in an NRZI recording process, where D: one (1) bit delay operator, wherein a regeneration signal from the medium is subjected to an equalizing process including the convolution of (k−s·D)(1+D) n where D: one (1) bit delay operator, k, s: integer, n: positive integer, and k=1, s=1, n=1, and wherein the information is decoded from the equalized signal by use of maximum-likelihood detection, and the maximum-likelihood detection convolution code of (1−D)k−s·D)(1+D) n where D: one (1) bit delay operator, k, s: integer, n: positive integer, and k=1, s=1, n=1.