The invention employs {HEAD ~ a high frequency transformer coupling technique} for {TAIL ~ pacing}, or, alternatively, high frequency transformer coupling with modulation demodulation 
for
The invention employs { HEAD ~ a high frequency transformer coupling technique } for { TAIL ~ pacing } , or , alternatively , high frequency transformer coupling with modulation demodulation
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH