Averaging pulse synchronizing apparatus

Claim 1

APPARATUS FOR SYNCHRONIZING LOCALLY GENERATED PULSES WITH THE AVERAGE TIMING OF A FIRST TRAIN OF PULSES HAVING A KNOWN REPETITION RATE BUT VARYING DEVIATIONS IN TIMING OF INDIVIDUAL PULSES OF SAID TRAIN FROM SAID REPETITION RATE, COMPRISING, IN COMBINATION: FIRST MEANS FOR LOCALLY GENERATING A SECOND TRAIN OF PULSES HAVING A REPETITION RATE WHICH IS A MULTIPLE OF SAID KNOWN REPITITION RATE; SECOND MEANS INCLUDING REPETITION RATE DIVIDING MEANS AND FIRST GATING MEANS RESPONSIVE TO SAID SECOND TRAIN OF PULSES FOR PROVIDING A THIRD TRAIN OF OUTPUT PULSES AT SAID KNOWN REPETITION RATE; THIRD MEANS FOR COMPARING THE RELATIVE TIMES OF OCCURRENCE OF N PULSES IN SAID FIRST AND THIRD TRAINS AND FOR PROVIDING N SIGNALS EACH REPRESENTATIVE OF THE TIME DIFFERENCE BETWEEN OCCURRENCE OF A PULSE IN SAID FIRST TRAIN AND OCCURRENCE OF A PULSE IN SAID THIRD TRAIN, N BEING A SELECTED NUMBER; FOURTH MEANS FOR ACCUMULATING SAID N SIGNALS; AND FIRST CONTROL MEANS RESPONSIVE TO SAID FOURTH MEANS FOR CONTROLLING THE OPERATION OF SAID SECOND MEANS, THEREBY TO ESTABLISH THE TIMES OF OCCURRENCE OF SAID OUTPUT PULSES OF SAID THIRD TRAIN AT KNOWN TIME SPACINGS RELATIVE TO THE AVERAGE TIMING OF SAID FIRST TRAIN OF PULSES.