Threshold logic circuit
AssigneeResearch Development Corporation
InventorYutaka Harada
Life of this patent
Estimating the term…
Abstract
In a threshold logic circuit, digital input signals are weighted and summed up and then the sum of weighted digital signals is compared with a threshold value. The threshold logic circuit comprises a plurality of current switching circuits and means for summing up the output currents from the current switching circuit. The weights for the input signals are changed by controlling supply currents to the current switching circuits.
Claims7
A threshold logic circuit comprising means for weighting and summing up digital input signals, and means for comparing the sum of the weighted digital input signals with a threshold value and outputting a digital signal depending on the result of the comparison, said threshold logic circuit being characterized in that:
- said means for weighting and summing up digital signals comprises
- a plurality of current switching circuits, output current each of which is switched by the respective input signal, each having current supply means for providing supply current to the respective switching circuit, and said supply current being controlled by each outer control signal, and
- means for summing up the output currents from the current switching circuits
Dependencies are inferred from the claim text.