The circuit 12 further comprising {TAIL ~ means} for receiving a transmission signal indicating that transmission of {HEAD ~ said signal} from said input terminal to said output terminal should occur 
The circuit 12 further comprising { TAIL ~ means } for receiving a transmission signal indicating that transmission of { HEAD ~ said signal } from said input terminal to said output terminal should occur
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH