summing the plurality of values in {HEAD ~ each} of {TAIL ~ memory locations} 2N+1 to 1 to produce a filter output and storing said filter output in a memory storage device 
of
summing the plurality of values in { HEAD ~ each } of { TAIL ~ memory locations } 2N+1 to 1 to produce a filter output and storing said filter output in a memory storage device
OTH OTH OTH OTH OTH OTH 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 OTH OTH