Data processing: speech signal processing – linguistics – language – Speech signal processing
Reexamination Certificate
2004-11-10
2008-08-05
Abebe, Daniel D (Department: 2626)
Data processing: speech signal processing, linguistics, language
Speech signal processing
C704S229000, C704S500000, C704S226000, C714S758000
Reexamination Certificate
active
07409338
ABSTRACT:
A softbit speech decoder includes a speech loss concealment circuit receiving bit information, bit error probability data, and a speech information flag from an equivalent channel based on a received signal provided to the equivalent channel. The speech loss concealment circuit also contains a speech data judging circuit for judging whether the speech information flag indicates that the received signal contains speech data, a parameter generating circuit for generating output information, including a speech-parameter error probability vector when the speech information flag indicates that the received signal does not contain speech data. When the received signal does not contain speech data, the speech-parameter error probability vector generated by the parameter generating circuit allows the softbit speech decoder to continue operating.
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Fingscheidt et al. “speech decoding with error concealment using residual source redundancy”□□□□IEEE 1197 pp. 91-92.
Tim Fingscheidt, Peter Vary; Softbit Speech Decoding: A New Approach to Error Concealment; IEEE Transactions on Speech and Audio Processing; vol. 9, No. 3, Mar. 2001; p. 240-p. 251.
Abebe Daniel D
Hsu Winston
Mediatek Incorporation
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