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Mostrando ítems 11-20 de 104
Ponencia
CMOS design of chaotic oscillators using state variables: a monolithic Chua's circuit
(Institute of Electrical and Electronics Engineers, 1993)
This paper presents design considerations for monolithic implementation of piecewise-linear (PWL) dynamic systems in CMOS technology. Starting from a review of available CMOS circuit primitives and their respective merits ...
Artículo
Design considerations for integrated continuous-time chaotic oscillators
(Institute of Electrical and Electronics Engineers, 1998)
This paper presents an optimization procedure to choose the chaotic state equation which is best suited for implementation using Gm-C integrated circuit techniques. The paper also presents an analysis of the most significant ...
Ponencia
Modeling OpAmp-induced harmonic distortion for switched-capacitor ΣΔ modulator design
(Institute of Electrical and Electronics Engineers, 1994)
This communication reports a new modeling of opamp-induced harmonic distortion in SC ΣΔ modulators, which is aimed to optimum design of this kind of circuit for high-performance applications. We analyze incomplete transfer ...
Artículo
Switched-Current Chaotic Neurons
(Institution of Engineering and Technology, 1994)
The Letter presents two nonlinear CMOS current-mode circuits that implement neuron soma equations for chaotic neural networks. They have been fabricated in a double-metal, single-poly 1.6µm CMOS technology. The neuron soma ...
Ponencia
Architectures and building blocks for CMOS VLSI analog "neural" programmable optimizers
(Institute of Electrical and Electronics Engineers, 1992)
A modular reconfigurable serial architecture is presented for the analog/digital implementation of constrained optimization algorithms with digital programmability of the problem weights. Area overhead due to programmability ...
Artículo
A 0.8-μm CMOS two-dimensional programmable mixed-signal focal-plane array processor with on-chip binary imaging and instructions storage
(Institute of Electrical and Electronics Engineers, 1997)
This paper presents a CMOS chip for the parallel acquisition and concurrent analog processing of two-dimensional (2-D) binary images. Its processing function is determined by a reduced set of 19 analog coefficients whose ...
Ponencia
A countinuous-time cellular neural network chip for direction-selectable connected component detection with optical image acquisition
(Institute of Electrical and Electronics Engineers, 1994)
This paper presents a continuous-time Cellular Neural Network (CNN) chip [1] for the application of Connected Component Detection (CCDet) [2]. Projection direction can be selected among four different possibilities. Every ...
Ponencia
A Tool for automated design of sigma-delta modulators using statistical optimization
(Institute of Electrical and Electronics Engineers, 1993)
A tool is presented which starting from high level specifications of SC σδ modulators (resolution, bandwidth and oversampling ratio) calculates first optimum specifications for the building blocks (op-amps, comparator, ...
Ponencia
A multiplexed mixed-signal fuzzy architecture
(Institute of Electrical and Electronics Engineers, 1998)
Analog circuits provide better area/power efficiency than their digital counterparts for low-medium precision requirements. This limit in precision as well as the lack of design tools when compared to the digital approach, ...
Ponencia
Hysteresis based neural oscillators for VLSI implementations
(Institute of Electrical and Electronics Engineers, 1991)
The actual tendency in most of the work that is being done in VLSI neural network research is to use the simplest possible models to perform the desired tasks. This yields to the use of sigmoidal type neurons that have ...