Project Concepts Presentation

ENEE 719V-2002

Neuromorphic VLSI

1. Monaural Vertical Auditory Localization2. Visual Surveillance Chip3. Pattern Recognition, Hebbian Learning, and floating-gates4. Harmonicity and Spike-based Winner-take-all5. Central Pattern Generators and Locomotion

Monaural Vertical Auditory Localization

Azimuth: Interaural Intensity Difference - (high frequencies)

Interaural Time Difference - (low frequencies)

Elevation: Spectral Modulation

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WOB

Simmons et al, 1983

Laurence and Simmons, 1982

Lopez-Poveda & Meddis

Chip Idea:

1. Given a microphone and pinna-like structure identify some featureIn the frequency domain that is a reasonably reliable cue for elevation. WriteSome MATLAB code to demonstrate this.

2. Design a neuromorphic circuit that can extract this information and reportan up/down signal to drive an actively pointing microphone.