Associative memory device

Claim 1

A MAGNETIC MEMORY ARRAY CAPABLE OF BEING NONDESTRUCTIVELY INTERROGATED COMPRISING: MEMORY CELLS ARRANGED IN PAIRED TRUE AND COMPLEMENT WORD ROWS AND PAIRED TRUE AND COMPLEMENT BIT COLUMNS, EACH OF SAID CELLS COMPRISING FIRST AND SECOND ANISOTROPIC MAGNETIC FILMS IN MAGNETICALLY COUPLED RELATIONSHIP WITH EACH OTHER, THE FIRST FILM OF EACH CELL BEING A STORAGE FILM WITH RELATIVELY HIGH COERCIVITY AND HAVING AN EASY AXIS THAT EXTENDS IN THE GENERAL DIRECTION OF ITS WORD ROW, THE SECOND FILM OF EACH CELL BEING A READ FILM WITH RELATIVELY LOW COERCIVITY AND HAVING AN EASY AXIS THAT IS SUBSTANTIALLY AT RIGHT ANGLES TO THE EASY AXIS OF THE ASSOCIATED STORAGE FILM, SAID READ FILM HAVING A HARD AXIS SUBSTANTIALLY PARALLEL WITH THE EASY AXIS OF SAID STORAGE FILM ALONG WHICH THE MAGNETIZATION OF SAID READ FILM IS BIASED BY THE MAGNETIZATION OF SAID STORAGE FILM, SAID FILMS BEING ADAPTED TO STORE DIGITAL INFORMATION IN SUCH FASHION THAT SAID READ FILM IS BIASED WELL INTO SATURATION IN ONE DIRECTION ALONG ITS HARD AXIS TO STORE A GIVEN DIGITAL REPRESENTATION AND IS BIASED BARELY INTO SATURATION IN THE OPPOSITE DIRECTION ALONG ITS HARD AXIS TO STORE THE OPPOSITE DIGITAL REPRESENTATION, EACH BIT STORAGE POSITION IN THE ARRAY CONTAINING A PAIR OF SAID MEMORY CELLS, ONE FOR STORING A TRUE REPRESENTATION OF A GIVEN BIT AND ANOTHER FOR STORING A REPRESENTATION OF ITS COMPLEMENT, EACH TRUE BIT REPRESENTATION BEING STORED IN A MEMORY CELL AT THE INTERSECTION OF A TRUE WORD ROW AND A TRUE BIT COLUMN, AND EACH COMPLEMENT BIT REPRESENTATION BEING STORED IN A MEMORY CELL AT THE INTERSECTION OF A COMPLEMENT WORD ROW AND A COMPLEMENT BIT COLUMN; BIT INTERROGATING MEANS INCLUDING THE FOLLOWING ELEMENTS: