A scanning device 1, wherein the data encoded by the tags is redundantly encoded and {HEAD ~ the processor} uses {TAIL ~ the redundantly encoded data} to detect one or more errors therein 
uses
A scanning device 1 , wherein the data encoded by the tags is redundantly encoded and { HEAD ~ the processor } uses { TAIL ~ the redundantly encoded data } to detect one or more errors therein
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH