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