BRIEF DESCRIPTION OF THE DRAWINGS
Preferred embodiments of the present invention will be described in detail based on the following figures, wherein:
FIG. 1 is a diagram showing a structure of a first embodiment of the present invention;
FIG. 2 is a timing chart of the first embodiment;
FIG. 3 is a diagram showing a structure of a second embodiment of the present invention;
FIG. 4 is a timing chart of the second embodiment;
FIG. 5 is a diagram showing a structure of a first related art example;
FIG. 6 is a diagram showing a structure of a second related art example;
FIG. 7 is a timing chart of the second related art example;
FIG. 8 is a diagram showing a structure of a third related art example;
FIG. 9 is a timing chart of the second related art example; and
FIG. 10 is a diagram showing a structure of a fourth related art example.