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Mostrando ítems 571-580 de 597
Artículo
Fourth-order cascade SC ΣΔ modulators: a comparative study
(Institute of Electrical and Electronics Engineers, 1998)
Fourth-order cascade ΣΔ modulators are very well suited for IC implementation using analog sampled-data circuits because of their robust, stable operation and their capability to achieve high resolution and wide bandwidth ...
Ponencia
Compressive image sensor architecture with on-chip measurement matrix generation
(Institute of Electrical and Electronics Engineers, 2017)
A CMOS image sensor architecture that uses a cellular automaton for the pseudo-random compressive sampling matrix generation is presented. The image sensor employs in-pixel pulse-frequency modulation and column wise pulse ...
Artículo
Chaotic image encryption using hopfield and hindmarsh–rose neurons implemented on FPGA
(Multidisciplinary Digital Publishing Institute (MDPI), 2020)
Chaotic systems implemented by artificial neural networks are good candidates for data encryption. In this manner, this paper introduces the cryptographic application of the Hopfield and the Hindmarsh–Rose neurons. The ...
Capítulo de Libro
Fire detection with a frame-less vision sensor working in the NIR band
(Universidad de Coimbra, 2014)
This paper draws the attention of the community about the capabilities of an emerging generation of bio-inspired vision sensors to be used in fire detection systems. Their principle of operation will be described. Moreover ...
Artículo
The Influence of MPPT Algorithms in the Lifespan of the Capacitor Across the PV Array
(Institute of Electrical and Electronics Engineers, 2022)
PV systems efficiency highly depends on the MPPT strategy to be implemented in the PV converter. Many MPPT methods on the literature are focused on improving the steady state and transient system performance extracting ...
Artículo
On the use of orientation filters for 3D reconstruction in event-driven stereo vision
(Frontiers Media, 2014)
The recently developed Dynamic Vision Sensors (DVS) sense visual information asynchronously and code it into trains of events with sub-micro second temporal resolution. This high temporal precision makes the output of these ...
Ponencia
A 0.18μm CMOS low-noise elliptic low-pass continuous-time filter
(Institute of Electrical and Electronics Engineers, 2005)
This paper presents a seventh order low-pass continuous-time elliptic filter for use in a high-performance wireline communication receiver. As an additional attribute, the filter provides programmable boost in the pass-band ...
Ponencia
A CMOS Implementation of Fitzhugh-Nagumo Neuron Model
(Institute of Electrical and Electronics Engineers, 1990)
A CMOS circuit is proposed that emulates FitzHugh-Nagumo's differential equations using OTAs, diode connected MOSFETs and capacitors. These equations model the fundamental behavior of biological neuron cells. Fitz- ...
Artículo
Improving speed of tunnel FETs logic circuits
(Institute of Electrical and Electronics Engineers, 2015)
Tunnel transistors are one of the most attractive steep subthreshold slope devices which are being investigating to overcome power density and energy inefficiency exhibited by CMOS technology. These transistors exhibit ...
Ponencia
A bioinspired 128x128 pixel dynamic-vision-sensor
(2011)
This paper presents a 128x128 dynamic vision sensor. Each pixel detects temporal changes in the local illumination. A minimum illumination temporal contrast of 10% can be detected. A compact preamplification stage has ...