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