Memory array sensing

Claim 1

IN A MAGNETIC CORE STORAGE DEVICE IN WHICH A PLURALITY OF MAGNETIC CORES ARE ARRANGED IN GROUPS, EACH CORE BEING SWITCHABLE BETWEEN A DATA-DESIGNATING STATE AND A NON-DATA-DESIGNATING STATE, EACH GROUP BEING THREADED BY A COMMON SENSE WINDING, EACH SENSE WINDING TOGETHER WITH THE CORES THREADED THEREBY HAVING EXHIBITING THE CHARACTERISTICS OF A TRANSMISSION LINE INCLUDING A DETERMINABLE CHARACTERISTIC IMPEDANCE WITH RESPECT TO AN ENVIRONMENTAL POINT OF REFERENCE, SUCH AS GROUND; THE IMPROVED SENSING SYSTEM, COMPRISING: A PLURALITY OF MAGNETIC CORES ARRANGED IN GROUPS, EACH CORE IN A GROUP CORRESPONDING TO A SIMILAR CORE IN EACH OTHER GROUP, THE CORRESPONDING SIMILAR CORES IN DIFFERENT GROUPS FORMING SETS; A PLURALITY OF SENSE WINDINGS, ONE FOR EACH OF SAID GROUPS; A PLURALITY OF SWITCHING MEANS, ONE FOR EACH OF SAID SETS, EACH OPERABLE TO SWITCH ALL OF THE CORES IN A CORRESPONDING SET FROM SAID DATA DESIGNATING STATE TO SAID NON-DATA DESIGNATING STATE, EACH OF SAID CORES, IN CHANGING FROM SAID DATA DESIGNATING STATE TO SAID NON-DATA DESIGNATING STATE, MANIFESTING A SIGNAL IN THE RESPECTIVELY CORRESPONDING ONE OF SAID SENSE WINDINGS; A PLURALITY OF DIFFERENTIAL AMPLIFIERS, EACH CORRESPONDING TO A PAIR OF SAID SENSE WINDINGS, EACH HAVING A PAIR OF INPUT TERMINALS, ONE END OF EACH SENSE WINDING IN A PAIR BEING CONNECTED TO A RESPECTIVELY CORRESPONDING ONE OF THE INPUT TERMINALS OF THE CORRESPONDING DIFFERENTIAL AMPLIFIERS, EACH TERMINAL OF SAID AMPLIFIERS RESPONDING TO SIGNALS MANIFESTED BY CORRESPONDING CORES AT DIFFERENT TIMES, SAID DIFFERENT TIMES BEING PROPORTIONAL TO LINE LENGTH OF THE RELATED SENSE WINDING BETWEEN EACH CORE AND THE RESPECTIVE AMPLIFIER, EACH CORE IN A SET BEING SUBSTANTIALLY THE SAME LINE LENGTH DISTANCE FROM THE AMPLIFIER CORRESPONDING THERETO; A PLURALITY OF IMPEDANCES, ONE FOR EACH OF SAID SENSE WINDINGS, EACH EQUAL TO THE CHARACTERISTIC IMPEDANCE OF THE RESPECTIVELY CORRESPONDING WINDING AND CORES, EACH OF SAID IMPEDANCES CONNECTING A SECOND END OF THE CORRESPONDING SENSE WINDING TO SAID ENVIRONMENTAL POINT OF REFERENCE; AND GATING MEANS FOR SAID DIFFERENTIAL AMPLIFIERS, SAID GATING MEANS BEING OPERATIVE TO GATE SIGNALS FROM EACH OF SAID SENSE WINDINGS THROUGH THE RESPECTIVELY CORRESPONDING ONE OF SAID DIFFERENTIAL AMPLIFIERS, SAID GATING MEANS BEING DIFFERENTIALLY RESPONSIVE TO DIFFERENT ONES OF SAID DRIVING MEANS SO AS TO GATE SAID DIFFERENTIAL AMPLIFIERS AT CORRESPONDING DIFFERENT TIMES.