Frequency synthesizing system

Claim 1

A SYSTEM FOR SYNTHESIZING A SIGNAL PRE-SELECTED FROM A FREQUENCY BAND COMPRISED OF A PLURALITY OF PRECISE FREQUENCIES SPACED A PREDETERMINED NUMBER OF CYCLES FROM EACH OTHER IN SAID BAND, SAID SYSTEM COMPRISING (A) MEANS FOR GENERATING A REFERENCE SIGNAL HAVING A PRECISE PREDETERMINED FREQUENCY, (B) OSCILLATOR MEANS TURNABLE OVER SAID BAND FOR PROVIDING SAID PRE-SELECTED SIGNAL, (C) COUNTER MEANS FOR COUNTING THE CYCLES PRODUCED BY SAID OSCILLATOR AND HAVING A PLURALITY OF FLIP-FLOPS ARRANGED IN A PLURALITY OF COUNTER STAGES, (D) SAID COUNTER MEANS INCLUDING A FIRST DECADE COUNTER ACTUATED BY SAID OSCILLATOR MEANS, A SECOND DECADE COUNTER, AND A FIRST CARRY GATE COUPLED TO SAID SECOND DECADE COUNTER AND BEING ADAPTED TO ACTUATE SAID SECOND DECADE COUNTER WHEN ENABLED, SAID FIRST CARRY GATE BEING ENABLED UPON RECEIVING THE NEXT PULSE FROM SAID OSCILLATOR MEANS AFTER IT RECEIVES SIGNALS FROM AT LEAST TWO STAGES OF SAID FIRST DECADE COUNTER INDICATING A COUNT OF "90" BEING HELD IN SAID FIRST DECADE COUNTER, (E) COINCIDENCE MEANS INCLUDING A PLURALITY OF MONITORING CIRCUITS EACH CONNECTED TO A DIFFERENT ONE OF FLIP-FLOPS IN SAID COUNTER STAGE AND ADAPTED TO YIELD AN ACTUATION SIGNAL UPON MONITORING OF A PREDETERMINED NUMBER IN SAID COUNTER, ANDGATE MEANS RESPONSIVE TO SAID ACTUATION SIGNAL AND SAID REFERENCE SIGNAL AT A PRECISE NUMBER OF CYCLES AT THE OSCILLATOR FREQUENCY AFTER SAID ACTUATION SIGNAL TO DEVELOP AN OUTPUT SIGNAL ADAPTED TO RESET ALL OF THE STAWGES OF SAID COUNTER MEANS, (F) MEANS FOR SETTING SAID COINCIDENCE MEANS TO SAID PREDERERMINED NUMBER WHICH WHEN MULTIPLIED BY THE FREQUENCY OF SAID REFERENCE SIGNAL IS EQUAL TO SAID PRE-SELECTED FREQUENCY, AND (G) MEANS RESPONSIVE TO SAID OUTPUT SIGNAL FOR PROVIDING AN ERROR SIGNAL TO CONTROL THE TUNING OF SAID OSCILLATOR TO LOCK IT IN AT SAID PRE-SELECTED FREQUENCY.

Claim 2

A SYSTEM FOR SYNTHESIZING A SIGNAL PRE-SELECTED FROM A FREQUENCY BAND COMPRISED OF A PLURALITY OF PRECISE FREQUENCIES SPACED A PREDETERMINED NUMBER OF CYCLES FROM EACH OTHER IN SAID BAND, SAID SYSTEM COMPRISING (A) MEANS FOR GENERATING A REFERENCE SIGNAL HAVING A PRECISE PREDETERMINED FREQUENCY, (B) OSCILLATOR MEANS TURNABLE OVER SAID BAND FOR PROVIDING SAID PRE-SELECTED SIGNAL, (C) COUNTER MEANS FOR COUNTING THE CYCLES PRODUCED BY SAID OSCILLATOR AND HAVING A PLURALITY OF FLIP-FLOPS ARRANGED IN A PLURALITY OF COUNTER STAGES, (D) SAID COUNTER MEANS INCLUDING A FIRST DECADE COUNTER ACTUATED BY SAID OSCILLATOR MEANS, A SECOND DECADE COUNTER, AND A FIRST CARRY GATE COUPLED TO SAID SECOND DECADE COUNTER AND BEING ADAPTED TO ACTUATE SAID SECOND DECADE COUNTER WHEN ENABLED, SAID FIRST CARRY GATE BEING ENABLED UPON RECEIVING THE NEXT PULSE FROM SAID OSCILLATOR MEANS AFTER IT RECEIVES SIGNALS FROM AT LEAST TWO STAGES OF SAID FIRST DECADE COUNTER INDICATING A COUNT OF "90" BEING HELD IN SAID FIRST DECADE COUNTER, (E) COINCIDENCE MEANS INCLUDING A PLURALITY OF MONITORING CIRCUITS EACH CONNECTED TO A DIFFERENT ONE OF FLIP-FLOPS IN SAID COUNTER STAGE AND ADAPTED TO YIELD AN ACTUATION SIGNAL UPON MONITORING OF A PREDETERMINED NUMBER IN SAID COUNTER, ANDGATE MEANS RESPONSIVE TO SAID ACTUATION SIGNAL AND SAID REFERENCE SIGNAL AT A PRECISE NUMBER OF CYCLES AT THE OSCILLATOR FREQUENCY AFTER SAID ACTUATION SIGNAL TO DEVELOP AN OUTPUT SIGNAL ADAPTED TO RESET ALL OF THE STAWGES OF SAID COUNTER MEANS, (F) MEANS FOR SETTING SAID COINCIDENCE MEANS TO SAID PREDERERMINED NUMBER WHICH WHEN MULTIPLIED BY THE FREQUENCY OF SAID REFERENCE SIGNAL IS EQUAL TO SAID PRE-SELECTED FREQUENCY, AND (G) MEANS RESPONSIVE TO SAID OUTPUT SIGNAL FOR PROVIDING AN ERROR SIGNAL TO CONTROL THE TUNING OF SAID OSCILLATOR TO LOCK IT IN AT SAID PRE-SELECTED FREQUENCY.