In this way, {HEAD ~ the differential amplification} of {TAIL ~ the first signal path} and the second signal path increases above a predetermined threshold and with rising signal amplitude 
In this way , { HEAD ~ the differential amplification } of { TAIL ~ the first signal path } and the second signal path increases above a predetermined threshold and with rising signal amplitude
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH