Magnetic memory apparatus

Claim 1

A MAGNETIC MEMORY APPARATUS HAVING A PLURALITY OF CORES, EACH CORE CAPABLE OF BEING SET INTO AT LEAST FIRST AND SECOND SUBSTANTIALLY HIGH FLUX DENSITY REMANENT MAGNETIC STATES, SAID CORES ARRANGED IN A PLURALITY OF SIMILAR PLANES, THE CORES OF EACH PLANE BEING ARRANGED IN A PLURALITY OF ROWS AND COLUMNS WITH A CORE BEING LOCATED AT THE INTERSECTION OF EACH ROW AND COLUMN, A FIRST GROUP OF SEPARATE CONDUCTORS EACH CONDUCTOR COUPLED TO ALL THE CORES OF SIMILAR ROWS OF EACH PLANE, A SECOND GROUP OF SEPARATE CONDUCTORS EACH CONDUCTOR COUPLED TO ALL THE CORES OF SIMILAR COLUMNS OF EACH PLANE, A THIRD GROUP OF SEPARATE CONDUCTORS EACH CONDUCTOR COUPLED TO ALL THE CORES OF EACH PLANE, MEANS FOR PROVIDING A SYMMETRICAL CONTROL SIGNAL OF A FIRST POLARITY READ PULSE FOLLOWED BY A SECOND AND OPPOSITE POLARITY WRITE PULSE SAID SIGNAL COUPLED SEPARATELY TO EACH CONDUCTOR OF SAID FIRST AND SECOND GROUPS WITH ANY CORE OF ANY PLANE BEING CAPABLE OF BEING INDIVIDUALLY SELECTED TO BE SET INTO SAID FIRST OR SECOND REMANENT MAGNETIC STATE BY THE COACTION OF SAID READ-WRITE PULSES, RESPECTIVELY, WHEN SAID READ-WRITE PULSES ARE COUPLED TO A CONDUCTOR OF SAID FIRST AND SECOND GROUPS WHICH CONDUCTORS ARE COUPLED TO SAID SELECTED CORE, THE IMPROVEMENT COMPRISING: COUPLED TO SAID THIRD GROUP OF CONDUCTORS; FIRST MEANS FOR PROVIDING A FIRST POLARITY PREWRITE DISTURB PULSE INTERMEDIATE IN TIME SAID READ-WRITE PULSES, AND SECOND MEANS FOR SELECTIVELY PROVIDING AN INHIBIT PULSE OF THE SAME POLARITY AS SAID PRE-WRITE DISTURB PULSE AND OF SUCH DURATION SUCH THAT SAID INHIBIT PULSE SHALL AT LEAST SUBSTANTIALLY OVERLAP SAID WRITE PULSE AND SHALL HAVE SUBSTANTIALLY THE OPPOSITE MAGNETIC EFFECT UPON ANY CORE AS ONE OF SAID WRITE PULSES.