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Artículo
CMOS 2.4μm chaotic oscillator: Experimental verification of chaotic encryption of audio
(Institution of Engineering and Technology, 1996)
The Letter reports the first experimental verification of chaotic encryption of audio using custom monolithic chaotic oscillators. We use Gm-C techniques to realise a chaotic modulator/ demodulator IC that implements a ...
Ponencia
Tactile on-chip pre-processing with techniques from artificial retinas
(The International Society for Optical Engineering - SPIE, 2005)
The interest in tactile sensors is increasing as their use in complex unstructured environments is demanded, like in tele-presence, minimal invasive surgery, robotics etc. The matrix of pressure data these devices provide ...
Artículo
Macromodelling for analog design and robustness boosting in bio-inspired computing models
(Society of Photo-Optical Instrumentation Engineers, 2005)
Setting specifications for the electronic implementation of biological neural-network-like vision systems on-chip is not straightforward, neither it is to simulate the resulting circuit. The structure of these systems leads ...
Ponencia
Photon Counting and Direct ToF Camera Prototype Based on CMOS SPADs
(Institute of Electrical and Electronics Engineers, 2017)
This paper presents a camera prototype for 2D/3D image capture in low illumination conditions based on single-photon avalanche-diode (SPAD) image sensor for direct time-offlight (d-ToF). The imager is a 64×64 array with ...
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 ...
Ponencia
Electrical-level synthesis of pipeline ADCs
(Institute of Electrical and Electronics Engineers, 2008)
This paper presents a design tool for the synthesis of pipeline ADCs which is able to optimally map high-level converter specifications, such as the required effective resolution, onto electrical-level parameters, i.e., ...
Ponencia
Realization of a CNN universal chip in CMOS technology
(Institute of Electrical and Electronics Engineers, 1995)
This paper describes the design of a programmable Cellular Neural Network (CNN) chip, with additional functionalities similar to those of the CNN Universal Chip. The prototype, which contains 1024 cells, has been designed ...
Ponencia
Top-Down Design of a xDSL 14-bit 4MSh ZA Modulator in Digital CMOS Technology
(Institute of Electrical and Electronics Engineers, 2001)
This paper describes the design of a Sigma-Delta modulator aimed for A/D conversion in xDSL applications, featuring 14-bit@4Msample/s in a 0.35μm mainstream digital CMOS technology. Architecture selection, modulator sizing ...
Ponencia
Programmable resolution imager for imaging applications
(SPIE- The International Society for Optical Engineering, 2000)
In this paper a programmable imager with averaging capabilities will be described which is intended for averaging of different groups or sets of pixels formed by n×n kernels, n×m kernels or any group of randomly-selected ...
Ponencia
Demo: Image Sensing Scheme Enabling Fully-Programmable Light Adaptation and Tone Mapping with a Single Exposure
(Association for Computing Machinery, 2016)
This demo showcases a High Dynamic Range (HDR) technique recently reported. We demonstrate that two intertwined photodiodes per pixel can perform tone mapping under unconstrained illumination conditions with a single ...