The bias is applied in {TAIL ~ response} to the amplified logic signal on {HEAD ~ the output node} 
The bias is applied in { TAIL ~ response } to the amplified logic signal on { HEAD ~ the output node }
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD