Patent ID: 6980385
Filing Date: 2005-12-27
Classification: G11B

Abstract:
1. An information regenerating apparatus comprising: a recording medium recording information; a read out circuit which generates a regenerated signal corresponding to recorded information from the recording medium; a conversion circuit which carries out sampling of the regenerated signal on the basis of a supplied clock signal to convert the regenerated signal to gain information; a regenerating circuit which carries out a signal detection on the basis of the gain information to output digital data corresponding to the information; a phase error detecting circuit which carries out a phase error signal calculated by using a delay circuit carrying out a delayed sampling from the conversion circuit; a detection circuit carrying out a detected data from the conversion circuit having same detection capability of the regenerating circuit; a phase calculate circuit calculating the phase error signal based on outputs of the delay circuit and the detection circuit; and an oscillation circuit which adjusts the clock signal on the basis of the phase error signal obtained by the phase error detecting circuit; wherein the detection circuit in the phase error detecting circuit comprises: