AHA - Advanced Hardware Architectures Group

Recent Submissions

  • On the ability of adaptation of speech signals and data hiding 

    Ballesteros, D.M.L.; Moreno Aróstegui, Juan Manuel (2012-11-15)
    Article
    Restricted access - publisher's policy
    The efficient wavelet masking is a scheme of speech-in-speech hiding based on the ability of adaptation of speech signals under the hypothesis “any (speech) secret signal may seem similar to a (speech) host signal if its ...

  • SNAVA—A real-time multi-FPGA multi-model spiking neural network simulation architecture 

    Sripad T A, Athul; Sánchez Rivera, Giovanny; Zapata Rodríguez, Mireya; Pirrone, Vito; Dorta Pérez, Silvestre Taho; Cambria, Salvatore; Marti, Albert; Krishnamourthy, Karthikeyan; Madrenas Boadas, Jordi (2018-01-01)
    Article
    Restricted access - publisher's policy
    Spiking Neural Networks (SNN) for Versatile Applications (SNAVA) simulation platform is a scalable and programmable parallel architecture that supports real-time, large-scale, multi-model SNN computation. This parallel ...

  • Curvature of BEOL cantilevers in CMOS-MEMS processes 

    Valle, Juan José; Fernández Martínez, Daniel; Madrenas Boadas, Jordi; Barrachina, Laura (2017-08-01)
    Article
    Open Access
    This paper presents the curvature characterization results of released back-end-of-line 5 µm-wide cantilevers for two different 0.18-µm 1P6M complementary metal-oxide semiconductor microelectromechanical systems processes. ...

  • CMOS-MEMS resonant pressure sensors: optimization and validation through comparative analysis 

    Banerji, Saoni; Michalik, Piotr Jozef; Méndez Fernández, Daniel; Madrenas Boadas, Jordi; Mola, Albert; Montanyà, Josep (2017-09-01)
    Article
    Restricted access - publisher's policy
    An optimized CMOS-MEMS resonant pressure sensor with enhanced sensitivity at atmospheric pressure has been reported in this paper. The presented work reports modeling and characterization of a resonant pressure sensor, ...

  • Characterization of CMOS-MEMS resonant pressure sensors 

    Banerji, Saoni; Fernández Martínez, Daniel; Madrenas Boadas, Jordi (2017-08-30)
    Article
    Open Access
    IEEE Comprehensive characterization results of a CMOS-MEMS resonant pressure sensor are presented. We have extensively evaluated the key performance parameters of our device in terms of quality factor (Q) variations under ...

  • Guia temàtica Biblioteca ETSAB: Plaça de Sant Jaume, Barcelona 

    Escola Tècnica Superior d'Arquitectura de Barcelona. Biblioteca (2017-03)
    Other
    Open Access

  • Modified current-mode one-cycle control for linear–assisted DC/DC regulator 

    Martínez García, Herminio; Cosp Vilella, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference lecture
    Restricted access - publisher's policy
    Linear-assisted DC/DC converters are structures that allow to take advantages of the two classic alternatives in the design of power supply systems: Voltage linear regulators (classic NPN topology or LDO –low dropout–) and ...

  • Speech scrambling based on imitation of a target speech signal with non-confidential content 

    Ballesteros Larrotta, Dora Maria; Moreno Aróstegui, Juan Manuel (2014-05-15)
    Article
    Restricted access - publisher's policy
    This paper shows a new approach of speech scrambling using imitation to produce a scrambled speech signal with intelligible content. The secret message imitates a target speech signal with non-confidential content through ...

  • Quasi-digital front-ends for current measurement in integrated circuits with giant magnetoresistance technology 

    De Marcellis, A.; Cubells Beltrán, M. Dolores; Reig Escriva, Abilio Càndid; Madrenas Boadas, Jordi; zadov, Boris; Paperno, Eugene; Cardoso, S.; Freitas, P.P. (2014-07-01)
    Article
    Restricted access - publisher's policy
    In this study, the authors report on two different electronic interfaces for low-power integrated circuits electric current monitoring through current-to-frequency (I-f) conversion schemes. This proposal displays the ...

  • Design of an on–chip linear–assisted DC–DC voltage regulator 

    Cosp Vilella, Jordi; Martínez García, Herminio (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Conference lecture
    Restricted access - publisher's policy
    This article shows the design of an on-chip CMOS linear-assisted DC-DC regulator. It results a good alternative topology to classic switching DC-DC power converters. In the presented technique, an auxiliary linear regulator ...

  • Field programmable switched-capacitor voltage converter 

    Martínez García, Herminio; Cosp Vilella, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference lecture
    Restricted access - publisher's policy
    In this paper we show two different schemes to implement a field programmable circuit that can connect 'n' capacitors as a charge-pump of, eventually, any topology and switching pattern. Capacitor connectivity is configured ...

  • On chaotic behavior in automatic tuning loops for continuous–time filters 

    Martínez García, Herminio; Cosp Vilella, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference lecture
    Restricted access - publisher's policy
    Continuous–time filters (CTFs) with automatic tuning loops are nonlinear feedback systems with potential instability. Thus, their appropriate linear dynamic modeling should be obtained to assure stability in case of an ...

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