Patent ID: 6246653
Filing Date: 2001-06-12
Classification: G11B

Abstract:
An apparatus for digitizing a signal read from a data storage medium, comprising:a peak detector, for detecting a peak value for an amplitude of a signal read from the storage medium;a threshold value determiner, for employing the peak value obtained by the peak detector to determine a compensation value that is used for compensating for the effect of inter-wave interference on the signal, and for employing a calculated threshold value and the compensation value to determine a compensated threshold value; anda digitization circuit, for digitizing the signal by using the threshold value determined by the threshold value determiner; andwherein the threshold value determiner acquires a new threshold value Vth whereVth=Vt+DVtwhere Vt denotes a threshold value before compensation (a current threshold value) and DVt denotes a compensation value.