Data processing: speech signal processing – linguistics – language – Speech signal processing – Recognition
Reexamination Certificate
2005-11-29
2005-11-29
Azad, Abul K. (Department: 2654)
Data processing: speech signal processing, linguistics, language
Speech signal processing
Recognition
C704S255000
Reexamination Certificate
active
06970818
ABSTRACT:
The present invention comprises a methodology for implementing a vocabulary set for use in a speech recognition system, and may preferably include a recognizer for analyzing utterances from the vocabulary set to generate N-best lists of recognition candidates. The N-best lists may then be utilized to create an acoustical matrix configured to relate said utterances to top recognition candidates from said N-best lists, as well as a lexical matrix configured to relate the utterances to the top recognition candidates from the N-best lists only when second-highest recognition candidates from the N-best lists are correct recognition results. An utterance ranking may then preferably be created according to composite individual error/accuracy values for each of the utterances. The composite individual error/accuracy values may preferably be derived from both the acoustical matrix and the lexical matrix. Lowest-ranked utterances from the foregoing utterance ranking may preferably be repeatedly eliminated from the vocabulary set when a total error/accuracy value for all of the utterances fails to exceed a predetermined threshold value.
REFERENCES:
patent: 6018708 (2000-01-01), Dahan et al.
patent: 6167377 (2000-12-01), Gillick et al.
patent: 6205426 (2001-03-01), Nguyen et al.
Menedez-Pidal Xavier
Olorenshaw Lex S.
Azad Abul K.
Koerner Gregory J.
Redwood Patent Law
Sony Corporation
Sony Electronics Inc.
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