Transcoding between the indices of multipulse dictionaries...

Details Transcoding between the indices of multipulse dictionaries... Transcoding between the indices of multipulse dictionaries...

2004-11-24

2009-08-11

Opsasnick, Michael N (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S219000

Reexamination Certificate

active

07574354

ABSTRACT:
The invention relates to compressive transcoding between pulse coders using multipulse dictionaries in which each pulse occupies a position marked by an index. For each current pulse position supplied by a first coder, a neighborhood (Vge, Vde) is formed around that position. As a function of the pulse positions accepted by the second coder, pulse positions are selected in an ensemble constituted by a union of the neighborhoods. The second coder finally receives this selection (sj), involving a number of pulse positions smaller than the total number of pulse positions in the dictionary of the second coder.

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Ghenania et al., “Transcodage intelligent à faible complexité entre les codeurs UIT-T G.729 et 3GPP NB-AMR,” CORESA 2004, May 25, 2004, Lille, France, pp. 85-88 (May 26, 2004).

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