Recording and/or reproducing system

Claim 1

IN A RECORDING AND/OR REPRODUCING SYSTEM FOR DIGITAL INFORMATION, MEANS FOR SUPPLYING A DIGITAL SIGNAL, SAID SIGNAL HAVING A WAVEFORM WHICH REPRESENTS A SERIES OF DIGITS OCCURING AT SEQUENTIAL TIME INTERVALS, SAID DIGITS BEING EITHER A FIRST OR A SECOND DIGIT, MEANS COUPLED TO SAID SUPPLYING MEANS FOR CONVERTING SAID FIRST DIGIT TO A POSITIVE NARROW PULSE AND SAID SECOND DIGIT INTO A NEGATIVE NARROW PULSE, MEANS COUPLED TO SAID CONVERTING MEANS FOR SEPARATING THE POSITIVE PULSES FROM THE NEGATIVE PULSES MEANS COUPLED TO SAID SEPARATING MEANS FOR INVERTING EACH NEGATIVE PULSE, MEANS COUPLED TO SAID SEPARATING MEANS FOR DELAYING EACH POSITIVE PULSE APPROXIMATELY ONE-HALF OF THE TIME INTERVAL, AN INHIBITING MEANS COUPLED TO SAID DELAY MEANS AND SAID INVERTING MEANS, A BISTABLE MULTIVIBRATOR COUPLED TO SAID INHIBITING MEANS, SAID MULTIVIBRATOR BEING SWITCHED FROM ONE CONDITION OF OPERATION TO THE OTHER CONDITION OF OPERATION BY THE OUTPUT SIGNAL FROM SAID INHIBITING MEANS, MEANS COUPLED TO SAID DELAY MEANS FOR PROVIDING AN INHIBITING SIGNAL FOR APPROXIMATELY THREE-FOURTHS OF THE TIME INTERVAL AFTER EACH OUTPUT SIGNAL OF SAID DELAY MEANS, MEANS FOR CONNECTING SAID INHIBITING SIGNAL PROVIDING MEANS TO SAID INHIBITING MEANS SO AS TO PREVENT PULSES FROM PASSING THERETHROUGH DURING SAID THREE-FOURTHS OF THE TIME INTERVAL, A MAGNETIC TAPE, AND A RECORDING MEANS IN RECORDING RELATIONSHIP WITH SAID MAGMETIC TAPE, SAID RECORDING MEANS BEING COUPLED TO SAID MULTIVIBRATOR SO THAT THE SWITCHING OF SAID MULTIVIBRATOR CAUSES ALTERNATE OPPOSITE FLUX CHANGES IN SAID MAGNETIC TAPE.