A New Charge-Packet Driven Mismatch-Calibrated Integrate-and-Fire Neuron for processing Positive and Negative Signals in AER based Systems

摘要

We present the design and experimental measurements of an integrate-and-fire pixel for Address-Event-Representation (AER) transceiver chips such that (a) input events can be weighted according to a digital word, (b) this weight includes a sign bit, (c) the incoming event is acompanied by a sign bit, and (d) the pixel can be calibrated to compensate for mismatch in large arrays of these pixels. A prototype has been fabricated in the AMS 035μm CMOS process, whose experimental measurement results are provided.