Unit having an artificial neuron and a memristor

1. An artificial neuron unit comprising:

at least one artificial neuron having at least one output port and at least one input port, and

at least one memristor having two terminals; said unit being characterized in that it also comprises at least one current conveyor having two input ports X and Y, and one output port Z; and in which:

one of the terminals of said memristor is connected to the input port X of said current conveyor;

said current conveyor is connected by its output port Z to an input port of said artificial neuron;

said artificial neuron is connccted by one of its output ports to the input port Y of said current conveyor or to another of said terminals of said memristor.

2. The artificial neuron unit according to claim 1 , in which said artificial neuron is a spiking neuron.

3. The artificial neuron unit according to claim 1 , in which said neuron is a leaky integrate-and-fire neuron.

4. The artificial neuron unit according to claim 1 , in which said neuron has a single output port.

5. The artificial neuron unit according to claim 1 , in which said neuron has a single input port.

6. The artificial neuron unit according to claim 1 , in which said current conveyor is a second generation conveyor.

7. The artificial neuron unit according to claim 1 , in which said conveyor is arranged in such a way that there is a constant such that, regardless of the intensity of a current received at an input of the conveyor within a predetermined range of intensity values, a current outgoing from the conveyor exhibits an intensity equal to the product of this constant with the intensity of the received current.

8. The artificial neuron unit according to claim 1 , in which said conveyor is arranged to supply, at the output of said conveyor, a current identical to a current received at an input of the conveyor or is arranged to supply, at the output of the conveyor, a current of the same intensity as the received current and oriented in the opposite direction.

9. The artificial neuron unit according to claim 1 , in which said memristor is a memristor with ferroelectric layer.

10. The artificial neuron unit according to claim 1 , in which:

said memristor is connected by one of its terminals to the input port X of said current conveyor;

said current conveyor is connected by its output port Z to an input port of said artificial neuron;

said artificial neuron is connected by one of its output ports to the input port Y of said current conveyor.

11. The artificial neuron unit according to claim 1 , which comprises at least two memristors, connected in parallel to one another, and connected to the input port X of a same current conveyor.

12. The artificial neuron unit according to claim 1 , which comprises at least two current conveyors connected by their output ports Z to an input port of one and the same artificial neuron.

13. The artificial neuron unit according to claim 1 , which comprises first and second conveyors, said first conveyor being arranged to supply, at the output of said first conveyor, a current identical to a current received at an input of said first conveyor and said second conveyor being arranged to supply, at the output of said second conveyor, a current of the same intensity as a current received at an input of said second conveyor and oriented in the opposite direction.

14. The artificial neuron unit according to claim 1 , which comprises memristors arranged in a network of memristors with transverse branches.