Moreover, {HEAD ~ the counter X13} at the final stage corresponds to {TAIL ~ the area discriminating circuit} according to the invention, and outputs the area discriminating bit X13 as an area discriminating signal 
Moreover , { HEAD ~ the counter X13 } at the final stage corresponds to { TAIL ~ the area discriminating circuit } according to the invention , and outputs the area discriminating bit X13 as an area discriminating signal
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH