Co-ordinate addressed matrix memory

Claim 1

A DATA STORAGE DEVICE COMPRISING AN ARRAY OF MAGNETIC STORAGE ELEMENTS IN ROWS AND COLUMNS, A SET OF ROW CONDUCTORS EACH FOR A RESPECTIVE ROW OF THE ARRAY AND MAGNETICALLY COUPLED TO THE ELEMENTS OF THAT ROW, A SET OF COLUMN CONDUCTORS EACH FOR A RESPECTIVE COLUMN OF THE ARRAY AND COUPLED TO THE ELEMENTS OF THAT COLUMN, MEANS FOR APPLYING A FIRST ELECTRICAL PULSE TO A SELECTED COLUMN CONDUCTOR, MEANS FOR APPLYING A SECOND CONCURRENT ELECTRICAL PULSE TO A SELECTED ROW CONDUCTOR, EACH SAID STORAGE ELEMENT AND THE MAGNITUDES OF SAID FIRST AND SECOND ELECTRICAL PULSES BEING SO CHOSEN THAT ONLY ON THE CO-INCIDENT PRESENCE OF SAID FIRST AND SECOND PULSES RESPECTIVELY ON THE ROW AND COLUMN CONDUCTORS MAGNETICALLY COUPLED TO A STORAGE ELEMENT CAN THE MAGNETIC FLUX DUE TO THE MAGNETISATION OF THAT STORAGE ELEMENT LINKING WITH THE SELECTED COLUMN CONDUCTOR BE SUBSTANTIALLY CHANGED, AND MEANS CONNECTED TO SAID COLUMN CONDUCTORS TO DERIVE THEREFROM AN OUTPUT SIGNAL INDUCED IN THE SELECTED COLUMN CONDUCTOR IN RESPONSE TO A SUBSTANTIAL CHANGE IN THE MAGNETIC FLUX LINKING THEREWITH DUE TO THE MAGNETISATION OF THE ELEMENT COUPLED TO THE SELECTED CONDCTORS AND PRODUCED BY THE PRESENCE OF BOTH PULSES, THE PULSES BEING SO TIMED THAT THE LEADING EDGE OF THE SECOND PULSE IS DELAYED RELATIVE TO THE LEADING EDGE OF THE FIRST PULSE SO THAT THE VOLTAGE ON THE SELECTED COLUMN CONDUCTOR CAN HAVE ATTAINED ITS STEADY STATE WHEN SAID CHANGE OF MAGNETIC FLUX OCCURS.