PULSE-BASED NEUROMORPHIC CIRCUIT IMPLEMENTING A FORMAL NEURON

摘要

The invention relates to a neuromorphic circuit of the impulse neuron type, comprising a capacitance (C sub mem /sub) at the terminals of which a membrane voltage (V sub mem /sub) is established, a first action comparator (1) configured to compare the membrane voltage with a first action voltage (V sub act /sub, V sub threshold_high /sub), a first regulation comparator (4) to compare the membrane voltage with a first regulation voltage (V sub reg /sub), a device for resetting the membrane voltage (3), a threshold overshoot register (5) and a regulator (2). The regulator is configured: - if the first regulation voltage is exceeded (V sub reg /sub, V sub Seuil_bas /sub) by the membrane voltage, to control the reset device the membrane tension (3) and modify the threshold overshoot register (5); and- if the first action voltage (V sub act /sub, V sub threshold_high /sub) is exceeded by the membrane voltage, to control the device for resetting the voltage membrane (3) and interrogate the threshold overshoot register to decide whether or not to generate an action potential (S sub pa /sub) on an output from the neuromorphic circuit.