BRIEF DESCRIPTIONS OF THE DRAWINGS
FIGS. 1 is a view for illustrating the present invention.
FIG. 2 is a diagram for illustrating the DVD-RAM format.
FIGS. 3 to 7 are diagrams for illustrating the present invention.
FIG. 8 is a block diagram showing the configuration of an example of the present invention.
FIG. 9 is a block diagram showing the configuration of an SY0 detection/decision circuit shown in FIG. 8.
FIG. 10 is a timing chart for illustrating the operation of the example of the present invention.
FIG. 11 is a timing chart for illustrating the resetting operation of the example of the present invention.
FIG. 12 is a schematic view for illustrating the state-of-the-art synchronization detection.
FIG. 13 is a block diagram showing the configuration of a conventional synchronization detection circuit.
FIG. 14 is a timing chart showing the operation of the synchronization circuit of FIG. 13.
FIG. 15 is a diagram for illustrating a synchronization frame of DVD select data.
FIG. 16 is a schematic view showing an error pattern for 14T.
FIG. 17 is a schematic view showing an error pattern for 12-16T.
FIG. 18 is a diagram showing a case where the 14T part of a signal pattern has been deviated by 1T towards back.
FIG. 19 is a diagram showing a case where a part of the signal pattern ahead of the 14T part has been deviated by 1T towards back.
FIGS. 20A and 20B are schematic block diagrams for comparative illustration of the conventional configuration of e.g., Patent Document 1 and the present invention.