The respective sine wave signals are level converting by a high group level converter comprising a capacitor and a switch and by {HEAD ~ a low group level converter} comprising {TAIL ~ a capacitor} and a switch 
comprising
The respective sine wave signals are level converting by a high group level converter comprising a capacitor and a switch and by { HEAD ~ a low group level converter } comprising { TAIL ~ a capacitor } and a switch
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 HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH