A method of reading and decoding scrambled and encoded two dimensional data represented on a sheet of media as a dot matrix includes {HEAD ~ the step} of detecting {TAIL ~ a data area} on the sheet of media by detecting targets on the sheet of media 
of detecting
A method of reading and decoding scrambled and encoded two dimensional data represented on a sheet of media as a dot matrix includes { HEAD ~ the step } of detecting { TAIL ~ a data area } on the sheet of media by detecting targets on the sheet of media
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH