The normalized signal and {TAIL ~ a signal output} from {HEAD ~ a pattern memory section} are supplied to a subtracting section for taking the difference between these two signals for each of the intervals 
The normalized signal and { TAIL ~ a signal output } from { HEAD ~ a pattern memory section } are supplied to a subtracting section for taking the difference between these two signals for each of the intervals
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH 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