Record format control circuit

Claim 1

A RECORD FORMAT CONTROL CIRCUIT FOR ENTERING A RECORD FORMAT ONTO A MAGNETIZABLE SURFACE ROTATING AT A CONSTANT RATE, COMPRISING A CORE STORAGE CIRCUIT FOR HOLDING A PLURALITY OF RECORDS, EACH INCLUDING A PLURALITY OF FIELD AREAS OF DETERMINABLE LENGTHS, MEANS FOR WRITING A PLURALITY OF FIELD AREAS OF NETIZABLE SURFACE, A FIRST RING COUNTER HAVING A PLURALITY OF STAGES, EACH PRODUCING AN ENABLING SIGNAL, A SECOND RING COUNTER RESPONSIVE TO SAID FIRST COUNTER AND HAVING A PLURALITY OF STAGES, EACH PRODUCING AN ENABLING SIGNAL, A DECREMENTING COUNTER HAVING A PLURALITY OF STAGES, EACH PRODUCING A PLURALITY OF OUTPUT SIGNALS, INJECTING MEANS RESPONSIVE TO SAID RING COUNTERS FOR SETTING NUMBERS INTO SAID DECREMENTING COUNTER WHICH INDICATE SAID LENGTH OF SAID FIELD AREAS AND SAID ZONE AREAS, MEANS FOR PRODUCING SIGNALS WHICH DECREMENT SAID DECREMENTING COUNTER, A DETECT CIRCUIT CONNECTED TO SAID STAGES OF SAID DECREMENTING COUNTER FOR GENERATING AN OUTPUT SIGNAL INDICATING THE PRODUCTION OF A SELECTED COMBINATION OF SAID OUTPUT SIGNALS, SAID FIRST RING COUNTER BEING RESPONSIVE TO SAID DETECT CIRCUIT, AND MEANS RESPONSIVE TO SAID ENABLING SIGNALS OF SAID RING COUNTERS AND CONNECTED TO SAID CORE STORAGE CIRCUIT AND SAID INJECTING MEANS FOR TRANSFERRING FIELDS AND ZONES ONTO SAID MAGNETIZABLE SURFACE.