NEURAL NETWORK DEVICE AND SIGNAL PROCESSING METHOD

Abstract

A neural network device according to an embodiment includes a plurality of synapse circuits and a plurality of neuron circuits. In a first neuron circuit out of the neuron circuits, a synaptic current is supplied to a first terminal from each of one or more first synapse circuits out of the synapse circuits. The first neuron circuit includes a charge accumulation circuit, a spike output circuit, and a cutoff circuit. The charge accumulation circuit accumulates charge corresponding to the synaptic current and generates a membrane potential corresponding to the accumulated charge. The spike output circuit outputs a spike signal when the membrane potential is higher than a preset threshold potential. During a cutoff period that is a predetermined period of time after the output of the spike signal, the cutoff circuit stops the supply of the synaptic current from the first terminal to the charge accumulation circuit.

CPC Classifications