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Mostrando ítems 31-40 de 117
Ponencia
Mixed signal CMOS high precision circuits for on chip learning
(Institute of Electrical and Electronics Engineers, 1998)
Learning algorithms have become of great interest to be applied not only to neural or hybrid neuro-fuzzy systems, but also as a tool to achieve a fine tuning of analog circuits, whose main drawback is their lack of precision. ...
Artículo
A real-time clustering microchip neural engine
(Institute of Electrical and Electronics Engineers, 1996)
This paper presents an analog current-mode VLSI implementation of an unsupervised clustering algorithm. The clustering algorithm is based on the popular ART1 algorithm, but has been modified resulting in a more VLSI-friendly ...
Ponencia
Design of a programmable mixed-signal CMOS image-processing chip in 0.8 /spl mu/m CMOS
(Institute of Electrical and Electronics Engineers, 1997)
An operational vision-chip prototype with a wide-range of potential applications in artificial-vision systems is presented. Its functionality includes concurrent image-transduction, programmable image-processing, image-storage, ...
Artículo
Multiplexing architecture for mixed-signal CMOS fuzzy controllers
(Institute of Electrical and Electronics Engineers, 1998)
Limited precision imposes limits on the complexity of analogue circuits, and hence fuzzy analogue controllers are usually oriented to fast low-power systems with low-medium complexity. A strategy to preserve most of the ...
Artículo
Using CAD tools for shortening the design cycle of high-performance sigma–delta modulators: A 16·4 bit, 9·6 kHz, 1·71 mW ΣΔM in CMOS 0·7 μm technology
(Wiley-Blackwell, 1997)
This paper uses a CAD methodology proposed by the authors to design a low-power 2nd-order Sigma-Delta Modulator (ΣΔM). This modulator has been fabricated in a 0.7μm CMOS technology to be used as the front-end of an ...
Ponencia
Harmonic Distortion in Fully-Differential Switched-Current Sigma-Delta Modulators
(1999)
This paper presents a systematic analysis of the harmonic distortion in SD modulators (SDMs) implemented with fully-differential switched-current (SI) circuits. Closed form expressions are derived for the third-order ...
Artículo
A modular programmable CMOS analog fuzzy controller chip
(Institute of Electrical and Electronics Engineers, 1999)
We present a highly modular fuzzy inference analog CMOS chip architecture with on-chip digital progranirnability. This chip consists of the interconnection of parameterized instances of two different kind of blocks, namely ...
Ponencia
Experimental verification of chaotic encryption of audio using monolithic chaotic modulators
(SPIE- The International Society for Optical Engineering, 1995)
This paper reports the first experimental verification of chaotic encryption of audio signals using integrated circuits. It is based on a g m-C modulator/demodulator analog CMOS IC that implements a 3rd-order nonlinear ...
Ponencia
RAPID-retargetability for reusability of application-driven quadrature D/A interface block design
(Institute of Electrical and Electronics Engineers, 1999)
This paper describes ESPRIT 29648, concerning the development of an advanced methodology for the design of a mixed-signal application-driven quadrature D/A interface sub-system, aiming at its reusability by a retargetting ...
Ponencia
Symbolic analysis tools-the state of the art
(Institute of Electrical and Electronics Engineers, 1996)
This paper reviews the main last generation symbolic analyzers, comparing them in terms of functionality, pointing out also their shortcomings. The state of the art in this field is also studied, pointing out directions ...