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    • A bit more on the ability of adaptation of speech signals 

      Ballesteros, Dora Maria; Moreno Aróstegui, Juan Manuel (2013-03)
      Article
      Accés obert
      Some traditional digital signal processing techniques encompass enhancement, filtering, coding, compression, detection and recognition. Recently, it has been presented a new hypothesis of signal processing known as the ...

    • A contour based approach for bilateral mammogram registration using discrete wavelet analysis 

      Reig Bolano, Ramon; Parisi Baradad, Vicenç; Marti Puig, Pere (2009)
      Article
      Accés restringit per política de l'editorial
      Registration of mammograms is an essential step to increase the effectiveness of all screening programs planned to early detect breast cancer in asymptomatic women. New techniques based on data fusion of different spatial ...

    • A new otolith image contour descriptor based on partial reflection 

      Reig Bolano, Ramon; Marti Puig, Pere; Lombarte, A.; Soria Pérez, José Antonio; Parisi Baradad, Vicenç (2010-12)
      Article
      Accés restringit per política de l'editorial
      In this paper we propose a new contour descriptor for reconstructing fish otolith contours that uses half the number of coefficients needed by the classical elliptical Fourier descriptors (EFDs) for the same accuracy. ...

    • A self-adaptive hardware architecture with fault tolerance capabilities 

      Soto, Javier; Moreno Aróstegui, Juan Manuel; Cabestany Moncusí, Joan (2013-12-09)
      Article
      Accés restringit per política de l'editorial
      This paper describes a Fault Tolerance System (FTS) implemented in a new self-adaptive hardware architecture. This architecture is based on an array of cells that implements in a distributed way self-adaptive capabilities. ...

    • A self-test and dynamics characterization circuit for MEMS electrostatic actuators 

      Fernández Martínez, Daniel; Madrenas Boadas, Jordi; Cosp Vilella, Jordi (2011-03)
      Article
      Accés restringit per política de l'editorial
      This paper presents a high-bandwidth capacitance estimation and driving circuit especially tailored for its use with MEMS electrostatic actuators. The circuit can be integrated as a part of a system comprising an electrostatic ...

    • A test setup for the characterization of Lorentz-force MEMS magnetometers 

      Sánchez Chiva, José María; Valle Fraga, Juan José; Fernández Martínez, Daniel; Madrenas Boadas, Jordi (2021-09-13)
      Article
      Accés obert
      Lorentz-force MEMS magnetometers are interesting candidates for the replacement of magnetometers in consumer electronics products. Plenty of works in the literature propose MEMS magnetometers, their readout circuits and ...

    • A translinear, log-domain FPAA on standard CMOS technology 

      Fernández, Daniel; Martínez Alvarado, Luis Arturo; Madrenas Boadas, Jordi (2012-02)
      Article
      Accés restringit per política de l'editorial
      A field-programmable analog array (FPAA) using a standard-CMOS wide-dynamic-range translinear element (TE) is introduced. The FPAA configurable analog blocks (CABs) are based on a reconfigurable translinear cell (RTC), ...

    • A wearable inertial measurement unit for long-term monitoring in the dependency care area 

      Rodríguez Martín, Daniel Manuel; Pérez López, Carlos; Samà Monsonís, Albert; Cabestany Moncusí, Joan; Català Mallofré, Andreu (2013-10-18)
      Article
      Accés obert
      Human movement analysis is a field of wide interest since it enables the assessment of a large variety of variables related to quality of life. Human movement can be accurately evaluated through Inertial Measurement Units ...

    • An asynchronous finite-state-machine-based buck-boost converter for on-chip adaptive power supply 

      Fernández, Daniel; Madrenas Boadas, Jordi; Alarcón Cot, Eduardo José (2013-01)
      Article
      Accés restringit per política de l'editorial
      In this paper we present an asynchronous finite-state machine digital controller co-integrated with an on-chip non-inverting buck-boost power converter with dynamic signal-tracking capabilities. The mostly-digital controller ...

    • Analyzing human gait and posture by combining feature selection and kernel methods 

      Samà Monsonís, Albert; Angulo Bahón, Cecilio; Pardo Ayala, Diego Esteban; Català Mallofré, Andreu; Cabestany Moncusí, Joan (2011-09)
      Article
      Accés obert
      This paper evaluates a set of computational algorithms for the automatic estimation of human postures and gait properties from signals provided by an inertial body sensor. The use of a single sensor device imposes ...

    • Automated taxon identification of teleost fishes using an otolith online database-AFORO 

      Parisi Baradad, Vicenç; Manjabacas, A.; Lombarte, A.; Olivella, R.; Chic, Oscar; Piera, Jaume; Garcia Ladona, E. (2010-06)
      Article
      Accés restringit per política de l'editorial
      Automated Taxon Identification (ATI) systems that use a database to identify species or anatomical structures of species from different taxonomical groups have recently been developed. However, few of these works have ...

    • Bio-inspired systems. Computational and ambient intelligence 

      Sandoval, Francisco; Cabestany Moncusí, Joan; Prieto, Alberto (2011-09)
      Article
      Accés restringit per política de l'editorial
      In the present issue of Neurocomputing, it is apleasure to present you a collection of 12 extended versions of selected papers from the 10 the dition of the International Work Conference on Artificial Neural Networks ...

    • Characterization of CMOS-MEMS resonant pressure sensors 

      Banerji, Saoni; Fernández Martínez, Daniel; Madrenas Boadas, Jordi (2017-08-30)
      Article
      Accés obert
      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 ...

    • Closed-form equation for natural frequencies of beams under full range of axial loads modeled with a spring-mass system 

      Valle Fraga, Juan José; Fernández Martínez, Daniel; Madrenas Boadas, Jordi (2019-04-01)
      Article
      Accés obert
      A new simple closed-form equation that accurately predicts the effect of an arbitrarily large constant axial load, residual stress or temperature shift on the natural frequencies of an uniform single-span beam, with various ...

    • 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
      Accés obert
      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, ...

    • Curvature of BEOL cantilevers in CMOS-MEMS processes 

      Valle Fraga, Juan José; Fernández Martínez, Daniel; Madrenas Boadas, Jordi; Barrachina, Laura (2017-08-01)
      Article
      Accés obert
      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. ...

    • Fuzzy expert system for the detection of episodes of poor water quality through continuous measurement 

      Angulo Bahón, Cecilio; Cabestany Moncusí, Joan; Rodríguez, Pablo; Batlle, Montserrat; González, Antonio; de Campos, Sergio (2012)
      Article
      Accés obert
      In order to prevent and reduce water pollution, promote a sustainable use, protect the environment and enhance the status of aquatic ecosystems, this article deals with the application of advanced mathematical techniques ...

    • Guest Editorial: Selected papers from ReCoSoC 2008 

      Hübner, Michael; Moreno Aróstegui, Juan Manuel; Sassatelli, Gilles; Zipf, Peter (2009)
      Article
      Accés restringit per política de l'editorial

    • Highly transparent steganography model of speech signals using efficient wavelet masking 

      Ballesteros, D.M.L.; Moreno Aróstegui, Juan Manuel (2012-08)
      Article
      Accés restringit per política de l'editorial
      Steganography is the process of hiding information on a host signal. Transparency is referred to the ability to avoid suspicion about the existence of a secret message. The most popular mechanisms for hiding data in audio ...

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

      Ballesteros, D.M.L.; Moreno Aróstegui, Juan Manuel (2012-11-15)
      Article
      Accés restringit per política de l'editorial
      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 ...