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 a capacitor and {TAIL ~ 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 a capacitor and { TAIL ~ 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 OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL