{HEAD ~ A bit pattern} represented by the dot matrix is detected and written to generate {TAIL ~ a byte pattern} 
{ HEAD ~ A bit pattern } represented by the dot matrix is detected and written to generate { TAIL ~ a byte pattern }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL REL OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL