Patent ID: 6445657
Filing Date: 2002-09-03
Classification: E05Y,G11B,H03L

Abstract:
A disk reproducing device, comprising:regenerative clock signal generating means for extracting a regenerative clock signal from reproduced data; demodulation means for demodulating the reproduced data in accordance with the regenerative clock signal, and outputting demodulated data; synchronizing signal detecting means for detecting a synchronizing signal for signal processing from the reproduced data, and outputting a synchronization detection signal; data storage means for sequentially storing the demodulated data; signal-processing clock-signal generating means for generating a clock signal for signal processing including error correction; signal processing means for reading out the demodulated data stored in said data storage means, in accordance with the clock signal for signal processing, and performing signal processing; dividing means for dividing a frequency of the clock signal for signal processing by a predetermined number, and outputting a frequency-divided signal; and signal cycle comparison means for phase comparing the synchronization detection signal with the frequency-divided signal, and outputting a comparison error signal, said signal-processing clock signal generating means generating the clock signal for signal processing on the basis of the comparison error signal.