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Mostrando ítems 1-10 de 111
Ponencia
On the development of a MODEM for data transmission and control of electrical household appliances using the low-voltage power-line
(Institute of Electrical and Electronics Engineers, 2003)
This paper presents a CMOS 0,6μm mixed-signal MODEM ASIC for data transmission on the low-voltage power line. The circuit includes all the analog circuitry needed for input interfacing and modulation/demodulation (PLL-based ...
Ponencia
Analysis and Modeling of the Non-Linear Sampling Process in Switched-Current Circuits - Application to Bandpass Sigma-Delta Modulators
(2001)
This paper presents a precise model for the transient behaviour of Fully Differential (FD) SwItched-current (SI) memory cells placed at the front-end of high-speed A/D interfaces. This model allows us to analyze the main ...
Ponencia
Object oriented image segmentation on the CNNUC3 chip
(Institute of Electrical and Electronics Engineers, 2000)
We show how a complex object oriented image analysis algorithm can be implemented on a CNNUM chip for video-coding. Besides the applied linear operations, several gray-scale nonlinear template operations are also emulated ...
Artículo
A new high-level synthesis methodology of cascaded continuous-time ΣΔ modulators
(Institute of Electrical and Electronics Engineers, 2006)
This brief presents an efficient method for synthesizing cascaded sigma–delta modulators implemented with continuous-time circuits. It is based on the direct synthesis of the whole cascaded architecture in the continuous-time ...
Artículo
Integrated chaos generators
(Institute of Electrical and Electronics Engineers, 2002)
This paper surveys the different design issues, from mathematical model to silicon, involved on the design of integrated circuits for the generation of chaotic behavior.
Ponencia
System-level optimization of baseband filters for communication applications
(The International Society for Optical Engineering - SPIE, 2003)
In this paper, a design approach for the high-level synthesis of programmable continuous-time baseband filters able to achieve optimum trade-off among dynamic range, distortion behavior, mismatch tolerance and power area ...
Ponencia
Experimental Characterization of IdleTones in Second-Order Bandpass ΣΔ Modulators
(2000)
This paper analyses the tonal behaviour of the quantization noise in second-order bandpass ΣΔ modulators. The analysis performed for lowpass modulators is extended to the bandpass case. As a result, closed form expressions ...
Ponencia
Study of Non-Linear S/H Operation in Switched-Current Circuits Using Volterra Series - Application to BandPass Sigma-Delta Modulators
(2001)
This paper analyses the transient behaviour of SwItched-current (SI) memory cells placed at the front-end of high-speed A/D interfaces. Based on the Volterra series method, the non-linear sampling process occurring in ...
Artículo
Reaction-diffusion navigation robot control: from chemical to VLSI analogic processors
(Institute of Electrical and Electronics Engineers, 2004)
We introduce a new methodology and experimental implementations for real-time wave-based robot navigation in a complex, dynamically changing environment. The main idea behind the approach is to consider the robot arena as ...
Ponencia
MATLAB/SIMULINK-Based High-Level Synthesis of Discrete-Time and Continuous-Time Sigma-Delta Modulators
(Institute of Electrical and Electronics Engineers, 2004)
This paper describes a tool that combines an accurate SIMULINK-based time-domain behavioural simulator with a statistical optimizer for the automated high-level synthesis of ΣΔ Modulators (ΣΔMs). The combination of high ...