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Mostrando ítems 31-40 de 185
Artículo
Resonation-based cascade ΣΔ modulator for broadband low-voltage A/D conversion
(Institute of Electrical and Electronics Engineers, 2008)
cascades while presenting very relaxed output swing requirements and, subsequently, high robustness to non-linearities of the amplifiers. In addition, the use of loop filters based on Forward-Euler integrators, instead of ...
Artículo
A neuromorphic cortical-layer microchip for spike-based event processing vision systems
(Institute of Electrical and Electronics Engineers, 2006)
We present a neuromorphic cortical-layer processing microchip for address event representation (AER) spike-based processing systems. The microchip computes 2-D convolutions of video information represented in AER format ...
Artículo
On Real-Time AER 2-D Convolutions Hardware for Neuromorphic Spike-Based Cortical Processing
(IEEE Computer Society, 2008)
In this paper, a chip that performs real-time image convolutions with programmable kernels of arbitrary shape is presented. The chip is a first experimental prototype of reduced size to validate the implemented circuits ...
Artículo
Estudio comparativo de los divisores en la tecnologías CMOS nanométricas
(Instituto Superior Politécnico José Antonio Echeverría (CUJAE), 2009)
Son varios los algoritmos de divisores propuestos para su realización en hardware, sin que haya un ‘mejor divisor’. La búsqueda de un diseño óptimo para cada aplicación específica hace que sea indispensable la investigación ...
Ponencia
3D multi-layer vision architecture for surveillance and reconnaissance applications
(Institute of Electrical and Electronics Engineers, 2009)
The architecture and the design details of a multilayer combined mixed-signal and digital sensor-processor array chip is shown. The processor layers are fabricated with 3D integration technology, and the sensor layer is ...
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
ECCTD 2007 special issue 'bridging technology innovations to foundations'
(Wiley-Blackwell, 2009)
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 ...
Artículo
Second-order neural core for bioinspired focal-plane dynamic image processing in CMOS
(Institute of Electrical and Electronics Engineers, 2004)
Based on studies of the mammalian retina, a bioinspired model for mixed-signal array processing has been implemented on silicon. This model mimics the way in which images are processed at the front-end of natural visual ...
Artículo
A Bio-Inspired Two-Layer Mixed-Signal Flexible Programmable Chip for Early Vision
(Institute of Electrical and Electronics Engineers, 2003)
A bio-inspired model for an analog programmable array processor (APAP), based on studies on the vertebrate retina, has permitted the realization of complex programmable spatio-temporal dynamics in VLSI. This model mimics ...