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Mostrando ítems 1-10 de 18
Ponencia
Open FPGA-based development platform for fuzzy systems with applications to communications
(2007)
Soft computing techniques are gaining momentum as tools for network traffic modeling, analysis and control. Efficient hardware implementations of these techniques that can achieve real-time operation in high-speed ...
Ponencia
Using multi-threshold threshold gates in rtd-based logic design. A case study
(Laboratoire TIMA, 2007)
The basic building blocks for Resonant Tunnelling Diode (RTD) logic circuits are Threshold Gates (TGs) instead of the conventional Boolean gates (AND, OR, NAND, NOR) due to the fact that, when designing with RTDs, ...
Artículo
A spatial contrast retina with on-chip calibration for neuromorphic spike-based AER vision systems
(Institute of Electrical and Electronics Engineers, 2007)
We present a 32 32 pixels contrast retina microchip that provides its output as an address event representation (AER) stream. Spatial contrast is computed as the ratio between pixel photocurrent and a local average between ...
Ponencia
Design of a 130-nm CMOS Reconfigurable Cascade ΣΔ Modulator for GSM/UMTS/Bluetooth
(Institute of Electrical and Electronics Engineers, 2007)
This paper reports a 130-nm CMOS programmable cascade ΣΔ modulator for multistandard wireless terminals, covering three standards: GSM, Bluetooth and UMTS. The modulator is reconfigured at both architecture- and ...
Artículo
The stochastic I-Pot: A circuit block for programming bias currents
(Institute of Electrical and Electronics Engineers, 2007)
In this brief, we present the “Stochastic I-Pot.” It is a circuit element that allows for digitally programming a precise bias current ranging over many decades, from pico-amperes up to hundreds of micro-amperes. I-Pot ...
Ponencia
Integrated circuit interface for artificial skins
(SPIE Europe, 2007)
Artificial sensitive skins are intended to emulate the human skin to improve the skills of robots and machinery in complex unstructured environments. They are basically smart arrays of pressure sensors. As in the case of ...
Ponencia
A 5.3mW, 2.4GHz ESD protected Low-Noise Amplifier in a 0.13μm RFCMOS technology
(Institute of Electrical and Electronics Engineers, 2007)
An Electrostatic Discharge (ESD) protected Low- Noise Amplifier (LNA) for the 2.4 GHz ISM band designed in a 0.13 mum standard RFCMOS technology is presented. The amplifier, including packaging effects, achieves 16.8 dB ...
Ponencia
Accurate and simple modeling of amplifier dc gain nonlinearity in switched-capacitor circuits
(Institute of Electrical and Electronics Engineers, 2007)
This paper presents an accurate and simple model for dc gain nonlinearity of operational amplifiers used in the switched-capacitor circuits such as the sigma-delta modulators. The proposed model can simply be used in the ...
Artículo
Novel topologies of cascade ΣΔ modulators for low-voltage wideband applications
(2007)
This work presents two novel topologies of cascade ΣΔ modulators with unity signal transfer function that avoid the need of digital filtering in the error cancellation logic. The combination ...
Artículo
Performance evaluation and limitations of a vision system on a reconfigurable/programmable chip
(Technische Universität Graz, 2007)
This paper presents a survey of the characteristics of a vision system implemented in a reconfigurable/programmable chip (FPGA). System limitations and performance have been evaluated in order to derive specifications ...