Speech coder and speech decoder

Details Speech coder and speech decoder Speech coder and speech decoder

2006-08-24

2009-06-09

Armstrong, Angela A (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S222000, C704S219000

Reexamination Certificate

active

07546239

ABSTRACT:
A dispersed vector generator used for a speech encoder or a speech decoder includes a pulse vector provider that provides a pulse vector having a signed unit pulse on one element of a vector axis. A dispersion pattern determiner determines a dispersion pattern of a set of waveforms defined before a start of encoding or decoding. A dispersed vector generator convolutes the pulse vector and the determined dispersion pattern to generate a dispersed vector. A length of the waveforms is shorter than a length of a sub-frame.

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