Sensitivity of neuromorphic circuits using nanoelectronic resistive switches to pulse synchronization

Authors:
Arne Heittmann;Tobias G. Noll
Affiliations:
Institute for Electrical Engineering and Computer Systems, RWTH Aachen University, Aachen, Germany;Chair of Electrical Engineering and Computer Systems, RWTH Aachen University, Aachen, Germany
Venue:
Proceedings of the 21st edition of the great lakes symposium on Great lakes symposium on VLSI
Year:
2011

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Abstract

This paper describes a neuromorphic circuit based on resistive switches arranged in a crossbar architecture. Using pulses as general signal representation the circuit in particular is sensitive to the degree of synchronization of the input pulses. In order to examine different effects of pulse synchronization on the input/output characteristics of the circuit, an architecture for the implementation of a filter is presented which is selective to oriented edges and lines. By theoretical analysis as well as simulative verification effects of attenuation and distortion are described which are related to statistical properties of input pulses. The results prepare the ground for new signal processing schemes in pulse coded neural networks.