Floating-Gate Circuits for Adaptation of Saccadic Eye Movement Accuracy

T. Horiuchi & C. Koch

Analog Integrated Circuits and Signal Processing Journal, 13(1/2) pp. 69-78, 1997

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Abstract:

In this paper we describe an analog VLSI circuit, fabricated using a standard 2.0 um, n-well, BiCMOS process, which utilizes floating-gate structures for non-volatile, on-chip, analog parameter storage. This circuit is designed to operate in the context of a hardware model of the primate oculomotor system and performs visually-guided, saccadic adaptation. The chip contains a one-dimensional array of photoreceptors and floating-gate circuits which are used to map retinal positions to motor output commands. The system's functionality is demonstrated by training the chip with several different mapping functions using a supervised-learning technique.