Frame erasure concealment technique for a bitstream-based...

Details Frame erasure concealment technique for a bitstream-based... Frame erasure concealment technique for a bitstream-based...

2006-08-01

2009-12-08

Opsasnick, Michael N (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

Recognition

C704S243000

Reexamination Certificate

active

07630894

ABSTRACT:
A frame erasure concealment technique for a bitstream-based feature extractor in a speech recognition system particularly suited for use in a wireless communication system operates to “delete” each frame in which an erasure is declared. The deletions thus reduce the length of the observation sequence, but have been found to provide for sufficient speech recognition based on both single word and “string” tests of the deletion technique.

REFERENCES:
patent: 5826221 (1998-10-01), Aoyagi
patent: 6044343 (2000-03-01), Cong et al.
patent: 6230124 (2001-05-01), Maeda

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