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