Data processing: speech signal processing – linguistics – language – Speech signal processing – For storage or transmission
Reexamination Certificate
2008-06-10
2008-06-10
Knepper, David D. (Department: 2626)
Data processing: speech signal processing, linguistics, language
Speech signal processing
For storage or transmission
Reexamination Certificate
active
07386447
ABSTRACT:
An overflow problem of LSF quantization in G.729 Annex B speech encoding which may lead to non-assignment of a codebook index. Preferred embodiments fix the problem with default or limited random variable assignments or flagging the overflow and adjusting the frame encoding such as by limiting spectral components or changing quantization targets.
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Benyassine, A, et al., “ITU-T Recommendation G.729 Annex B: A Silence Compression Scheme for Use with G.729 Optimized vor V.70 Digital simultaneous Voice and Data Applications”, IEEE Communications Magazine, vol. 35, No. 9, Sep. 1997, pp. 64-73.
Dowdal John T.
Li Dunling
Mladenovic Zoran
Sisli Gokhan
Brady W. James
Knepper David D.
Shaw Steven A.
Telecky , Jr. Frederick J.
Texas Instruments Incorporated
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