Patent ID: 6094407
Filing Date: 2000-07-25
Classification: G11B

Abstract:
A device for reducing a jitter in an optical disc comprising:a DVD formatting means for providing a DVD format signal according to a DVD source signal;a pulse width adjusting means for separating the DVD format signal from the DVD formatting means into signals of frequencies each being a certain times of a basic clock, comparing the signals to a reference voltage, and adjusting a pulse width of each of the signals according to results of the comparisons;a DVD signal extracting means for adding the signals each having the pulse width adjusted in the pulse width adjusting means in extracting a pulse width adjusted DVD signal, and amplifying the pulse width adjusted DVD signal; and,a laser beam recording means for directing a laser beam onto a DVD according to the DVD signal extracted and amplified in the DVD signal extracting means to form pits corresponding to the frequency of the certain times in the DVD.