{HEAD ~ A camera unit} 30 produces sixteen line sequential analog video signals that correspond to {TAIL ~ a scene} 32 
{ HEAD ~ A camera unit } 30 produces sixteen line sequential analog video signals that correspond to { TAIL ~ a scene } 32
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH