Synchronization monitor

Claim 1

A COUNTER CIRCUIT FOR MONITORING THE SYNCHRONIZATION OF SIGNAL INFORMATION WITH RESPECT TO REFERENCE INFORMATION, COMPRISING:; AN INPUT CIRCUIT HAVING A REFERENCE PULSE INPUT TERMINAL AND A SIGNAL PULSE INPUT TERMINAL FOR RECEIVING RESPECTIVELY REFERENCE PULSE INFORMATION AND SIGNAL PULSE INFORMATION, AND FIRST AND SECOND OUTPUT TERMINALS, SAID INPUT CIRCUIT FORMING SIGNAL OUTPUT PULSES AT A FIRST OF SAID OUTPUT TERMINALS IN RESPONSE TO SIGNAL INFORMATIN SUPPLIED TO SAID SIGNAL PULSE INPUT TERMINAL AND REFERENCE OUTPUT PULSES AT THE SECOND OF SAID OUTPUT TERMINALS IN RESPONSE TO REFERENCE INFORMATION SUPLIED TO SAID REFERENCE PULSE INPUT TERMINAL, SAID REFERENCE OUTPUT PULSES AND SIGNAL OUTPUT PULSES BEING ALTERNATELY PRODUCED AT SAID FIRST AND SECOND OUTPUT TERMINALS OF SAID INPUT CIRCUIT WHEN SAID SIGNAL INFORMATION IS SYNCHRONIZED WITH SAID REFERENCE INFORMATION; AND A DETECTING CIRCUIT ELECTRICALLY CONNECTED TO SAID FIRST AND SAID SECOND OUTPUT TERMINALS OF SAID INPUT CIRCUIT FOR RECEIVING THE REFERENCE OUTPUT PULSES AND SIGNAL OUTPUT PULSES FORMED BY SEIAD INPUT CIRCUIT; SAID DETECTING CIRCUIT INCLUDING A FIRST CONTROL MEANS HAV-ING FIRST AND SECOND INPUT TERMINALS COUPLED TO SAID FIRST AND SECOND OUTUT TERMINALS RESPECTIVELY, SAID FIRST CONTROL MEANS HAVING A THIRD OUTPUT TERMINAL AND NORMALLY ALTERNATING BETWEEN TWO MODES OF CONDUCTION IN RESPONSE TO OUTPUT PULSES PRODUCED ALTERNATELY ON SAID FIRST AND SECOND OUTPUT TERMINALS AND PRODUCING OUTPUT PULSES ON SAID THIRD OUTPUT TERMINAL; AND A SECOND CONTROL MEANS HAVING THIRD AND FOURTH INPUT TERMINALS COUPLED TO SAID FIRST AND SECOND OUTPUT TERMINALS RESPECTIVELY, SAID SECOND CONTROL MEANS HAVING A FOURTH OUTPUT TERMINAL OF SAID FIRST AND SECOND INPUT TERMINALS OF SAID FIRST CONTROL MEANS SAID SECOND CONTROL MEANS HAVING TWO MODES OF CONDUCTION BUT BEING NORMALLY MAINTAINED IN A SINGLE MODE OF CONDUCTION SO THAT SAID FIRST CONTROL MEANS IS CAUSED TO ALTERNATELY SHIFT BETWEEN THE TWO CONDUCTIVE MODES BY ALTERNATE OUTPUT PULSES FROM SAID INPUT CIRCUIT ALONG WITH THE OUTPUT FROM SAID SECOND CONTROL MEANS WHEN IN SAID NORMAL MODE OF CONDUCTION.