Arithmetic computation using a nuclear magnetic resonance analog to digital converter

Claim 1

AN ANALOGUE TO DIGITAL CONVERTER OF THE CLASS DESCRIBED COMPRISING: FIRST AND SECOND NUCLEAR MAGNETIC RESONANCE DEVICES, EACH HAVING A SENSITIVE COIL AND AN OUTPUT PROVIDING A SIGNAL HAVING A FREQUENCY PROPORTIONAL TO MAGNETIC FLUX APPLIED TO SAID SENSITIVE COIL; A FIRST MAGNETIC FIELD VARIABLE IN ACCORDANCE WITH THE SUM OF A FIRST CURRENT PLUS A SECOND CURRENT AND SAID FIRST CURRENT MINUS SAID SECOND CURRENT; A SECOND MAGNETIC FIELD VARIABLE IN ACCORDANCE WITH THE DIFFERENCE BETWEEN SAID FIRST CURRENT PLUS SAID SECOND CURRENT AND SAID FIRST CURRENT MINUS SAID SECOND CURRENT; MEANS MOUNTING SAID SENSITIVE COIL OF SAID FIRST NUCLEAR MAGNETIC DEVICE WITHIN SAID FIRST MAGNETIC FIELD AND SAID SENSITIVE COIL OF SAID SECOND NUCLEAR MAGNETIC DEVICE WITHIN SAID SECOND MAGNETIC FIELD; SUMMING MEANS HAVING AN OUTPUT WHICH IS THE SUM OF A FIRST AND SECOND FREQUENCY APPLIED THERETO; SUBTRACTING MEANS HAVING AN OUTPUT WHICH IS THE DIFFERENCE BETWEEN A FIRST AND SECOND FREQUENCY APPLIED THERETO; MULTIPLYING MEANS; MEANS CONNECTING SAID OUTPUTS OF SAID FIRST AND SECOND NUCLEAR MAGNETIC RESONANCE DEVICES TO SAID SUMMING MEANS AND SAID SUBTRACTING MEANS; AND MEANS CONNECTING SAID OUTPUTS OF SAID SUMMING MEANS AND SAID SUBTRACTING MEANS TO SAID MULTIPLYING MEANS, SAID MULTIPLYING MEANS PRODUCING AN OUTPUT PROPORTIONAL TO THE SQUARE OF SAID FIRST CURRENT MINUS THE SQUARE OF SAID SECOND CURRENT.