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An Analog Neural Computer with Modular Architecture for Real-Time Dynamic Computations
Departmental Papers (ESE)
  • Jan Van der Spiegel, University of Pennsylvania
  • Paul Mueller, University of Pennsylvania
  • David Blackman, University of Pennsylvania
  • Peter Chance, Corticon, Inc.
  • Christopher Donham, University of Pennsylvania
  • Ralph Etienne-Cummings, University of Pennsylvania
  • Peter Kinget, Kath. University of Leuven
Abstract
The paper describes a multichip analog parallel neural network whose architecture, neuron characteristics, synaptic connections, and time constants are modifiable. The system has several important features, such as time constants for time-domain computations, interchangeable chips allowing a modifiable gross architecture, and expandability to any arbitrary size. Such an approach allows the exploration of different network architectures for a wide range of applications, in particular dynamic real-world computations. Four different modules (neuron, synapse, time constant, and switch units) have been designed and fabricated in a 2µm CMOS technology. About 100 of these modules have been assembled in a fully functional prototype neural computer. An integrated software package for setting the network configuration and characteristics, and monitoring the neuron outputs has been developed as well. The performance of the individual modules as well as the overall system response for several applications have been tested successfully. Results of a network for real-time decomposition of acoustical patterns will be discussed.
Document Type
Journal Article
Date of this Version
1-1-1992
Comments
Copyright 1992 IEEE. Reprinted from IEEE Journal of Solid State Circuits, Volume 27, Issue 1, January 1992, pages 82-92.
Publisher URL: http://dx.doi.org/10.1109/4.109559

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Keywords
  • neural network,
  • neuron,
  • synapse,
  • synaptic time constants,
  • acoustical pattern analysis
Citation Information
Jan Van der Spiegel, Paul Mueller, David Blackman, Peter Chance, et al.. "An Analog Neural Computer with Modular Architecture for Real-Time Dynamic Computations" (1992)
Available at: http://works.bepress.com/jan_vanderspiegel/9/