Silicon neuron

Details Silicon neuron Silicon neuron

G - Physics

06

G

G06G 7/60 (2006.01) G06F 15/80 (2006.01) G06N 3/063 (2006.01)

Patent

CA 2122581

2122581 9309513 PCTABS00022 An integrated circuit comprising a plurality of differential pairs of CMOS transistors, the gate voltage of a first one of each pair of transistors being settable to set a threshold value corresponding to an activation threshold of an ion channel in a biological neuron and the gate voltage of the second one of each pair of transistors being representative of an incoming membrane potential, ligand concentration or ion concentration of a biological neuron, each differential pair of CMOS transistors thereby providing a sigmoidal output representative of an ionic conductance across a neural membrane when the gate voltage of the second transistor exceeds the threshold value set by the gate voltage of the first transistor, wherein the plurality of differential pairs of CMOS transistors are interdependent and produce a combined output which emulates the functional characteristics of a biological neuron.

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