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