The improved signal restoring 15 wherein {HEAD ~ said reference region} is along {TAIL ~ a crosstrack edge} of the platen 
is along
The improved signal restoring 15 wherein { HEAD ~ said reference region } is along { TAIL ~ a crosstrack edge } of the platen
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH