Recent Submissions

  • 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 ...
  • 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
    Open Access
    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 ...
  • A self-adaptive hardware architecture with fault tolerance capabilities 

    Soto, Javier; Moreno Aróstegui, Juan Manuel; Cabestany Moncusí, Joan (2013-12-09)
    Article
    Restricted access - publisher's policy
    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. ...
  • SVM-based posture identification with a single waist-located triaxial accelerometer 

    Rodríguez Martín, Daniel Manuel; Samà Monsonís, Albert; Pérez López, Carlos; Català Mallofré, Andreu; Cabestany Moncusí, Joan; Rodríguez Molinero, Alejandro (2013-12)
    Article
    Restricted access - publisher's policy
    Analysis of human body movement is an important research area, specially for health applications. In order to assess the quality of life of people with mobility problems like Parkinson’s disease o stroke patients, it is ...
  • Wavelet-denoising on hardware devices with Perfect Reconstruction, low latency and adaptive thresholding 

    Ballesteros Larrotta, Dora Maria; Moreno Aróstegui, Juan Manuel (2013-05)
    Article
    Restricted access - publisher's policy
    This paper introduces a wavelet denoising architecture with adaptive thresholding for real-time 1D-systems and without the use of external memories for storing input data or wavelet coefficients. The Discrete Wavelet ...
  • 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
    Restricted access - publisher's policy
    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 ...
  • Pulsed digital oscillators for electrostatic MEMS 

    Gorreta Mariné, Sergio; Ruiz Fernández, Daniel; Blokhina, Elena; Pons Nin, Joan; Jimenez Serres, Vicente; O'Connell, D.; Feely, Orla; Madrenas Boadas, Jordi; Domínguez Pumar, Manuel (2012)
    Article
    Restricted access - publisher's policy
    This paper introduces a new actuation scheme for implementing Pulsed Digital Oscillators (PDOs) for electrostatic MEMS resonators. In this scheme, the capacitance of the device is biased with a voltage and it is periodically ...
  • Result-consistent counter sampling scheme for coarse-fine TDCs 

    Michalik, Piotr Jozef; Fernandez, D.; Madrenas Boadas, Jordi (Institution of Electrical Engineers, 2012-09-13)
    Article
    Restricted access - publisher's policy
  • A bit more on the ability of adaptation of speech signals 

    Ballesteros, Dora Maria; Moreno Aróstegui, Juan Manuel (2013-03)
    Article
    Open Access
    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 ...

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