{HEAD ~ Further circuitry} is coupled to the storage circuit and is in turn couplable to the conductors for detecting {TAIL ~ a predetermined portion} of pulses of electrical energy injected at the proximal end of the conductors 
{ HEAD ~ Further circuitry } is coupled to the storage circuit and is in turn couplable to the conductors for detecting { TAIL ~ a predetermined portion } of pulses of electrical energy injected at the proximal end of the conductors
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH