phase discriminating means connected to said detecting {HEAD ~ means} for outputting an output signal representing {TAIL ~ said phase relations} detected by said detecting means 
phase discriminating means connected to said detecting { HEAD ~ means } for outputting an output signal representing { TAIL ~ said phase relations } detected by said detecting means
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH