Switched-Capacitor Multi-Internal-State Chaotic Neuron Circuit with Unipolar and Bipolar Output Functions

Authors:
Yoshihiko Horio;Izumi Kobayashi;Masato Kawakami;Hiroshi Hayashi;Kazuyuki Aihara
Affiliations:
-;-;-;-;-
Venue:
MICRONEURO '99 Proceedings of the 7th International Conference on Microelectronics for Neural, Fuzzy and Bio-Inspired Systems
Year:
1999

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Abstract

A switched-capacitor circuit implementation of the multi-internal-state chaotic neuron model is proposed. The decay time constant of the refractoriness for each internal state can be determined separately by the external signals. Furthermore, the proposed circuit has both of the bipolar and unipolar output functions realized by a simple nonlinear function circuit. One of the two output functions can be externally selected. Moreover, the saturation levels and center gain of the function can be altered by the external voltages. The behavior of the circuit is confirmed using HSPICE simulations. The proposed circuit is currently under fabrication through MOSIS using 1.2 µm and 0.5 µm CMOS technologies.