Logic circuits group certain of the output binary signal pulses into a predetermined group recognition pattern having a configuration such that it will occur only once for each object that it scanned, and which is decoded to provide {HEAD ~ an output counting pulse} for {TAIL ~ each object} presented to the counting area 
Logic circuits group certain of the output binary signal pulses into a predetermined group recognition pattern having a configuration such that it will occur only once for each object that it scanned , and which is decoded to provide { HEAD ~ an output counting pulse } for { TAIL ~ each object } presented to the counting area
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