and 4b are a state table and state diagram, respectively, illustrating the operation of the method of the present invention; [0016] FIGS. 5a and 5b are a state table and state diagram, respectively, illustrating the operation of the method of the present invention; [0017] FIGS. 6a, 6b, and 6c are flow chart diagrams illustrating the method ofthe present invention; [0018] FIG. 7 is a block diagram