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