Now showing items 1-20 of 21

    • IconA FPP-oriented tone mapping technique for high dynamic range imagers using temporal and final exposure measurements  [Presentation]

      Vargas Sierra, Sonia; Liñán Cembrano, Gustavo; Roca Moreno, Elisenda; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2010)
      This paper presents a Dynamic Range improvement technique which is specially well-suited to be implemented in Focal Plane Processors due to its very limited computing requirements since only local memories and a comparator ...
    • IconA hierarchical approach for the symbolic analysis of large analog integrated circuits  [Presentation]

      Guerra Vinuesa, Oscar; Roca Moreno, Elisenda; Fernández Fernández, Francisco Vidal; Rodríguez Vázquez, Ángel Benito (IEEE computer society digital library, 2000)
      This paper introduces a new hierarchical analysis methodology which incorporates approximation strategies during the analysis process. Consequently, the circuit sizes that can be analyzed increase dramatically, ...
    • IconA multimode gray-scale CMOS optical sensor for visual computers  [Presentation]

      Liñán Cembrano, Gustavo; Rodríguez Vázquez, Ángel Benito; Espejo Meana, Servando Carlos; Domínguez Castro, Rafael; Roca Moreno, Elisenda (Institute of Electrical and Electronics Engineers, 2002)
      This paper presents a new multimode optical sensor architecture for the optical interface of Visual CNN (cellular neural net) chips. The sensor offers to the user the possibility of choosing the photo-sensitive device as ...
    • IconA versatile CMOS transistor array IC for the statistical characterization of time-zero variability, RTN, BTI, and HCI  [Article]

      Díaz Fortuny, Javier; Martín Martínez, Javier; Rodríguez Martínez, Rosana; Castro López, Rafael; Roca Moreno, Elisenda; Fernández Fernández, Francisco Vidal; Aragonès Cervera, Xavier; Barajas Ojeda, Enrique; Mateo Peña, Diego; Nafría Maqueda, Montserrat (Institute of Electrical and Electronics Engineers (IEEE), 2018-01-01)
      Statistical characterization of CMOS transistor variability phenomena in modern nanometer technologies is key for accurate end-of-life prediction. This paper presents a novel CMOS transistor array chip to statistically ...
    • IconACE16K: The Third Generation of Mixed-Signal SIMD-CNN ACE Chips Toward VSoCs  [Article]

      Rodríguez Vázquez, Ángel Benito; Liñán Cembrano, Gustavo; Carranza González, Luis; Roca Moreno, Elisenda; Carmona Galán, Ricardo; Jiménez Garrido, Francisco José; Domínguez Castro, Rafael; Espejo Meana, Servando Carlos (Institute of Electrical and Electronics Engineers, 2004)
      Today, with 0.18-μm technologies mature and stable enough for mixed-signal design with a large variety of CMOS compatible optical sensors available and with 0.09-μm technologies knocking at the door of designers, we can ...
    • IconAn accurate error control mechanism for simplification before generation algorithms  [Presentation]

      Guerra Vinuesa, Oscar; Rodríguez García, Juan D.; Roca Moreno, Elisenda; Fernández Fernández, Francisco Vidal; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 1999)
      The use of simplification before generation techniques to enable the approximate symbolic analysis of large analog circuits is discussed. This paper introduces an error control mechanism to drive the circuit reduction, ...
    • IconAn automated design methodology of RF circuits by using Pareto-optimal fronts of EMsimulated inductors  [Article]

      González Echevarría, Reinier; Roca Moreno, Elisenda; Castro López, Rafael; Fernández Fernández, Francisco Vidal; Sieiro, J.; López Villegas, J. M.; Vidal, N. (Institute of Electrical and Electronics Engineers, 2017)
      A new design methodology for radiofrequency circuits is presented that includes electromagnetic (EM) simulation of the inductors into the optimization flow. This is achieved by previously generating the Pareto-optimal front ...
    • IconUna aproximación multinivel para el diseño sistemático de circuitos integrados de radiofrecuencia.  [Doctoral Thesis]

      Moreira de Passos, Fabio (2018-04-13)
      En un mercado bien establecido como el de las telecomunicaciones, donde se está evolucionando hacia el 5G, se estima que hoy en día haya más de 2 Mil Millones de usuarios de Smartphones. Solo de por sí, este número es ...
    • IconContext-dependent transformation of Pareto-optimal performance fronts of operational amplifiers  [Article]

      Roca Moreno, Elisenda; Velasco Jiménez, Manuel; Castro López, Rafael; Fernández Fernández, Francisco Vidal (Springer, 2012)
      The use of Pareto-optimal performance fronts in emerging design methodologies for analog integrated circuits is a keystone to overcome the limitations of traditional design methodologies. However, most techniques to generate ...
    • IconDiseño sistemático de circuitos analógicos y de señal mixta reconfigurables  [Doctoral Thesis]

      Velasco Jiménez, Manuel (2017-09-15)
      During the last decades, there has been an increasing demand of electronic devices, mostly in the field of mobile communications. Every year, hand-held communication devices must include more and more functionalities and ...
    • IconElectrooptical measurement system for the DC characterization of visible detectors for CMOS-compatible vision chips  [Article]

      Roca Moreno, Elisenda; Frutos Rayego, Fabián; Espejo Meana, Servando Carlos; Domínguez Castro, Rafael; Rodríguez Vázquez, Ángel Benito (IEEE, 1998)
      Abstract—An electrooptical measurement system for the dc characterization of visible detectors for CMOS-compatible vision chips is presented, which can help designers to characterize these detectors. The measurement ...
    • IconFully analytical characterization of the series inductance of tapered integrated inductors  [Article]

      Moreira de Passos, Fabio; Fino, M. Helena; Roca Moreno, Elisenda (De Gruyter, 2014)
      In this paper a general method for the determination of the series inductance of polygonal tapered inductors is presented. The value obtained can be integrated into any integrated inductor lumped element model, thus granting ...
    • IconHigh-dynamic range tone-mapping algorithm for focal plane processors  [Presentation]

      Vargas Sierra, Sonia; Liñán Cembrano, Gustavo; Roca Moreno, Elisenda; Rodríguez Vázquez, Ángel Benito (The International Society for Optics and Photonics, 2011)
      This paper presents a Dynamic Range improvement technique which is specially well-suited to be implemented in Focal Plane Processors (FPP) due to its very limited computing requirements since only local memories, little ...
    • IconIntroduction to the special issue on Radio Frequency Integrated Circuits (RFIC) design techniques  [Article]

      Roca Moreno, Elisenda; Sieiro, J. (Elsevier, 2016)
    • IconIntroduction to the special issue on SMACD 2012  [Article]

      Fernández Fernández, Francisco Vidal; Roca Moreno, Elisenda; Castro López, Rafael (Springer, 2014)
      Welcome to the Special Issue devoted to the 2012 edition of the International Conference on Synthesis, Modeling, Analysis and Simulation Methods and Applications to Circuit Design (SMACD). This is the XIIth edition of the ...
    • IconLoad-independent characterization of trade-off fronts for operational amplifiers  [Presentation]

      Roca Moreno, Elisenda; Velasco Jiménez, Manuel; Castro López, Rafael; Fernández Fernández, Francisco Vidal (2010)
      Abstract—In emerging design methodologies for analog integrated circuits, the use of performance trade-off fronts, also known as Pareto fronts, is a keystone to overcome the limitations of the traditional top-down ...
    • IconMacromodelling for analog design and robustness boosting in bio-inspired computing models  [Article]

      Cuadri, J.; Liñán Cembrano, Gustavo; Roca Moreno, Elisenda; Rodríguez Vázquez, Ángel Benito (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 ...
    • IconMixed-mode impedance and reflection coefficient of two-port devices  [Article]

      Carrasco, T.; Sieiro, J.; Lopez-Villegas, J. M.; Vidal, N.; González Echevarría, Reinier; Roca Moreno, Elisenda (EMW Publishing, 2012)
      From the point of view of mixed-mode scattering parameters, Smm, a two-port device can be excited using different driving conditions. Each condition leads to a particular set of input reflection and input impedance coefficient ...
    • IconParametric macromodeling of integrated inductors for RF circuit design  [Article]

      Passos, Fabio; Ye, Y.; Spina, D.; Roca Moreno, Elisenda; Castro López, Rafael; Dhaene, T.; Fernández Fernández, Francisco Vidal (Wiley-Blackwell, 2017)
      Nowadays, parametric macromodeling techniques are widely used to describe electromagnetic structures. In this contribution, the application of such parametric macromodeling techniques to the design of integrated inductors ...
    • IconPixel design and evaluation in CMOS image sensor technology  [Presentation]

      Vargas Sierra, Sonia; Roca Moreno, Elisenda; Liñán Cembrano, Gustavo (2009)
      A chip designed in a 0.18 μm CMOS Image Sensor Technology (CIS) is presented which incorporates different pixel design alternatives for Active Pixel Sensor (APS). CIS technology improves characteristics such as sensitivity, ...