Science Journal of Circuits, Systems and Signal Processing

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Volume 2, Issue 1, February 2013

  • A Novel Phonemes Classification Method Using Fuzzy Logic

    Ines Ben Fredj, Kaïs Ouni

    Issue: Volume 2, Issue 1, February 2013
    Pages: 1-5
    Published: 20 February 2013
    DOI: 10.11648/j.cssp.20130201.11
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    Abstract: In this study, we will interest in phonemes classification of Timit database using Fuzzy Logic. The fuzzy method consists in the extraction of a three fuzzy-reference vectors: maximal, mean and minimal. To classify a phoneme request, we calculate its degree of membership to all defined classes. The class of a phoneme request is, then, the one which... Show More
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  • Context Adaptive Variable Length Decoding Optimization and Implementation on Tms320c64 Dsp for H.264/Avc

    Taheni Damak, Imen Werda, Mohamed Ali Ben Ayed, Nouri Masmoudi

    Issue: Volume 2, Issue 1, February 2013
    Pages: 6-15
    Published: 20 February 2013
    DOI: 10.11648/j.cssp.20130201.12
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    Abstract: Context Adaptive Variable Length Decoding (CAVLD) module takes the lion chair of the H.264/AVC video decoder time due to its complexity. In order to ameliorate decoding speed, a new CAVLD algorithm and an efficient internal memory design were implemented on Digital Signal Processor (DSP). The proposed CAVLD algorithm, Zero Length Prefix (ZLP), was ... Show More
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  • Response Mode Detection of a Linear-Logarithmic Image Sensor Using a Current-Mode Readout Circuit

    Elham Khamsehashari, Yves Audet

    Issue: Volume 2, Issue 1, February 2013
    Pages: 16-21
    Published: 20 February 2013
    DOI: 10.11648/j.cssp.20130201.13
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    Abstract: A current-mode image sensor architecture using a linear-logarithmic pixel in order to improve the dynamic range is presented. The pixel cell is based on a 3T active pixel structure with a PMOS readout transistor in the linear region of operation and a PMOS reset transistor that allows for a linear-logarithmic response. An intrascene dynamic range o... Show More
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