Decoder circuits

Claim 1

A DECODER CIRCUIT COMPRISING, IN COMBINATION, IN PUT MEANS RESPONSIVE TO A CODE SIGNAL INCLUDING A SERIES OF POSITIVE AND NEGATIVE PULSES FOLLOWED BY A NEGATIVE READ-OUT PULSE, SAID READ-OUT PULSE HAVING A TIME DURATION GREATER THAN THAT OF SAID INDIVIDUAL PULSES IN SAID SERIES, A TRAIN OF MAGNETIC CORES EACH CAPABLE OF ASSUMING EITHER ONE OF TWO STABLE STATES, SAID TRAIN INCLUDING A MAGNETIC CORE CORRESPONDING TO EACH OF SAID PULSES IN SAID SERIES, A SHIFT PULSE GENERATOR CONNECTED TO SAID INPUT MEANS AND RESPONSIVE TO EACH OF SAID NEGATIVE PULSES IN SAID SERIES TO CAUSE ALL OF THE MAGNETIC CORES OF SAID TRAIN IN ONE OF SAID STATES TO ASSUME THE SECOND ONE OF SAID STATES, A SEPARATE DELAY CIRCUIT INCLUDING AN INPUT AND AN OUTPUT CIRCUIT CONNECTED BETWEEN EACH PAIR OF THE SUCCEEDING MAGNETIC CORES OF SAID TRAIN, EACH OF SAID DELAY CIRCUITS RESPONSIVE TO A CHANGE FROM SAID ONE STATE TO SAID SECOND STATE OF A FIRST MAGNETIC CORE CONNECTED TO SAID INPUT CIRCUIT TO CAUSE A SECOND MAGNETIC CORE CONNECTED TO SAID OUTPUT CIRCUIT TO ASSUME SAID ONE STATE, AN INFORMATION PULSE GENERATOR CONNECTED TO SAID INPUT MEANS AND RESPONSIVE TO EACH OF SAID POSITIVE PULSES IN SAID SERIES TO CAUSE A PREDETERMINED ONE OF THE MAGNETIC CORES IN SAID TRAIN TO ASSUME SAID ONE STATE, A MAGNETIC CORE CIRCUIT CONNECTED BETWEEN SAID INFORMATION PULSE GENERATOR AND SAID SHIFT PULSE GENERATOR AND ARRANGED TO OPERATE SAID SHIFT PULSE GENERATOR FOLLOWING EACH OPERATION OF SAID INFORMATION PULSE GENERATOR SO AS TO CAUSE THE MAGNETIC CORES OF SAID TRAIN IN SAID ONE STATE INCLUDING SAID ONE MAGNETIC CORE TO ASSUME SAID SECOND STATE, THE MAGNETIC CORES CORRESPONDING TO SAID PULSES IN SAID SERIES BEING MADE UPON THE COMPLETE RECEPTION OF SAID SERIES OF PULSES TO ASSUME ONE OF SAID STATES ACCORDING TO THE POLARITY OF SAID CORRESPONDING ONE OF SAID PULSES IN SAID SERIES, A READ-OUT PULSE GENERATOR CONNECTED TO SAID INPUT MEANS AND RESPONSIVE TO SAID READOUT PULSE TO APPLY A CURRENT PULSE TO SAID TRAIN OF MAGNETIC CORES, SAID TRAIN OF MAGNETIC CORES BEING RESPONSIVE TO SAID CURRENT PULSE TO PRODUCE AN OUTPUT SIGNAL ACCORDING TO THE ONE OF SAID STATES ASSUMED BY EACH OF SAID MAGNETIC CORES INCLUDED THEREIN, A CONTROL CIRCUIT, A TRANSISTOR MULTIVIBRATOR CONNECTED TO SAID TRAIN OF MAGNETIC CORES AND RESPONSIVE TO THE OUTPUT SIGNAL PRODUCED BY SAID TRAIN OF MAGNETIC CORES WHEN EACH OF SAID MAGNETIC CORES INCLUDED IN SAID TRAIN IS IN A PREDETERMINED ONE OF SAID STATES TO OPERATE SAID CONTROL CIRCUIT.