An optional automatic light control sub system provides {HEAD ~ greatly extended dynamic range} with {TAIL ~ control inputs} derived from an amplifying detector included in each receiver to maximize occurrences of valid data points 
with
An optional automatic light control sub system provides { HEAD ~ greatly extended dynamic range } with { TAIL ~ control inputs } derived from an amplifying detector included in each receiver to maximize occurrences of valid data points
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH