Coded data generation or conversion – Analog to or from digital conversion – Differential encoder and/or decoder
Reexamination Certificate
2007-11-06
2007-11-06
Nguyen, Khai M. (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Differential encoder and/or decoder
C341S144000, C341S152000, C330S010000, C330S251000, C375S238000, C375S242000, C375S247000
Reexamination Certificate
active
10588644
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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Anagram Technologies SA
Fulbright & Jaworski LLP
Nguyen Khai M.
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