{HEAD ~ The second circuit stage} determines a one fourth amplitude value by adding the first amplitude value to the one half amplitude value and dividing the result by two, and determines {TAIL ~ a three fourths amplitude value} by adding the second amplitude value to the one half amplitude value and dividing the result by two 
determines
{ HEAD ~ The second circuit stage } determines a one fourth amplitude value by adding the first amplitude value to the one half amplitude value and dividing the result by two , and determines { TAIL ~ a three fourths amplitude value } by adding the second amplitude value to the one half amplitude value and dividing the result by two
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH