{TAIL ~ The pulse train} is counted by the up down counter 42 as shown in FIG 4., and {HEAD ~ this train} is also supplied to a driving circuit, to be described later, of the stepping motor 15 to drive the same 
{ TAIL ~ The pulse train } is counted by the up down counter 42 as shown in FIG 4 . , and { HEAD ~ this train } is also supplied to a driving circuit , to be described later , of the stepping motor 15 to drive the same
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH