Magnetic encoding circuits

Claim 1

AN ELECTRICAL CIRCUIT COMPRISING A PLURALITY OF MAGNETIC CORES EACH HAVING A SUBSTANTIALLY RECTANGULAR HYSTERESIS CHARACTERISTIC LOOP, AN INPUT, A READOUT, AN OUTPUT, AND A BIAS WINDING ON EACH OF SAID CORES, AN INPUT CIRCUIT MEANS FOR CONNECTING EACH OF SAID INPUT WINDINGS IN SERIES, A READOUT CIRCUIT MEANS FOR CONNECTING EACH OF SAID READOUT WINDINGS IN SERIES, A BIAS CIRCUIT MEANS FOR CONNECTING EACH OF SAID BIAS WINDINGS IN SERIES, MEANS FOR APPLYING A CURRENT SIGNAL OF A CONTINUOUSLY VARYING AMPLITUDE TO SAID INPUT CIRCUIT MEANS, MEANS FOR APPLYING BIASING CURRENT TO SAID BIAS CIRCUIT MEANS, SAID BIASING WINDING EACH BEING IN A SENSE AND HAVING A NUMBER OF TURNS SUCH THAT EACH OF SAID PLURALITY OF CORES IS MAGNETICALLY BIASED TO A DIFFERENT POINT ON ITS HYSTERESIS LOOP AND IS THEREBY DRIVEN TO A DIFFERENT FIRST FLUX EXCURSION FOR INSTANTANEOUS AMPLITUDES OF SAID CURRENT SIGNAL, MEANS FOR APPLYING PERIODIC READOUT CURRENT PULSES TO SAID READOUT CIRCUIT MEANS, SAID PERIODIC READOUT CURRENT PULSES BEING OF AN AMPLITUDE TO CAUSE PERIODIC AND EQUAL SECOND FLUX EXCURSIONS IN EACH OF SAID CORES, A CODING NETWORK COMPRISING A PLURALITY OF OUTPUT CONDUCTORS AND CONNECTING MEANS FOR INTERCONNECTING SAID OUTPUT WINDINGS TO SAID OUTPUT CONDUCTORS IN PREDETERMINED COMBINATIONS, AND AMPLITUDE DISCRIMINATING MEANS CONNECTED TO EACH OF SAID OUTPUT CONDUCTORS.