Floating-Gate Circuits for Adaptation of Saccadic Eye MovementAccuracy

Authors:
Timothy K. Horiuchi;Christof Koch
Affiliations:
Computation and Neural Systems Program, California Institute of Technology, Pasadena, CA 91125;Computation and Neural Systems Program, California Institute of Technology, Pasadena, CA 91125
Venue:
Analog Integrated Circuits and Signal Processing
Year:
1997

Citing 3
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Abstract

In this paper we describe an analog VLSI circuit, fabricatedusing a standard 2 µm, n-well, BiCMOS process,which utilizes floating-gate structures for non-volatile, on-chip,analog parameter storage. This circuit is designed to operatein the context of a hardware model of the primate oculomotorsystem and performs visually-guided, saccadic adaptation. Thechip contains a one-dimensional array of photoreceptors and floating-gatecircuits which are used to map retinal positions to motor outputcommands. The system‘s functionality is demonstrated by trainingthe chip with several different mapping functions using a supervised-learningtechnique.