Fig. 5: HAN for neurointerfaces and handwriting recognition.
From: An ion-electronic hybrid artificial neuron with a widely tunable frequency
a Schematic illustration of a detached cockroach leg with its efferent nerve connected to the HAN for bioelectronic interfacing. b–d Response of the cockroach legs to the spiking stimulation of different frequencies. e Schematic diagram of the HAN sensing array for handwriting recognition. The upper and lower panel presents a cross-sectional view and a top view of the array structure, respectively. The arrows in the lower panel indicate a representative trajectory for the handwritten digit 8, starting from the N21 electrode. f Circuit of an array consisting of 6 hybrid artificial neurons for handwritten digit recognition. g Output of the sensing array to the handwriting of 8. h Distinguished peak currents and firing rates of these HANs.
