Method and device for the version of digital signals with heterogeneous formats and application thereof to the digital amplification of audio signals
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United States of America Patent
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Nov 6, 2007
Grant Date -
Aug 23, 2007
app pub date -
Feb 2, 2005
filing date -
Feb 6, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a method and device for the conversion of digital signals comprising a phase involving modulation with the aid of a vector lattice encoder. The inventive method comprises iterative steps which are performed on N output candidates, consisting in filtering (Hx, Hq), determining the difference between the filtered signals calculating two possible evolutions for said options, pre-selecting the candidates that minimise the difference, weighting the difference with a cost function (W), marking the candidates eliminated for a subsequent iteration, and selecting the best candidate over a period determined by a historical decision dimension. The invention also relates to the use thereof in relation to a digital audio signal amplifier.
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