{TAIL ~ A counter} counts the number of times a data image pattern is detected and generates {HEAD ~ a repeat count} 
{ TAIL ~ A counter } counts the number of times a data image pattern is detected and generates { HEAD ~ a repeat count }
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD