Digital signal recording method and apparatus involving precode processing for partial response detection

摘要

A digital signal recording method and apparatus for recording a digital signal on a recording medium by dividing the digital signal at intervals of a certain byte number, adding to each of the divided signals a synchronizing signal, a control signal including block address information, and an error detection and correction code to form signal blocks, and precoding each of the signal blocks in order to detect a partial response. Before the precode processing, the digital signal and the error detection and correction code are scrambled on the basis of the control signal, and the control signal is inverted.