Method for natural voice recognition based on a generative...

Details Method for natural voice recognition based on a generative... Method for natural voice recognition based on a generative...

G - Physics

10

L

G10L 15/18 (2006.01)

Patent

CA 2493429

The invention relates to a method for natural voice recognition based on a generative transformation/phrase structure grammar known as GT /PS grammar. According to the invention, a spoken phrase is analyzed for triphones contained therein, words contained in the spoken phrase are formed from the recognized triphones with the aid dictionaries and the spoken phrase is syntactically reconstructed from the recognized words using a grammar. The GT /PS grammar is a novel method enabling target sentences to be placed in said grammar. It uses traditional Grammar Specification Language (GSL), structures said sentences however in an innovative manner. It is oriented towards the rules of phrase structure grammar and Noam Chomsky's concept of generative transformation grammar.

L'invention concerne un procédé de reconnaissance vocale naturelle fondée sur une grammaire syntagmatique/générative transformationnelle. Selon l'invention, une analyse d'une phrase prononcée est réalisée pour permettre de déterminer les triphones contenus dans cette dernière, puis des mots contenus dans la phrase prononcée sont formés à partir des triphones reconnus, à l'aide de bases de données de groupes de phonèmes (dictionnaires) et une reconstruction syntaxique de la phrase prononcée est réalisée à partir des mots reconnus au moyen d'une ensemble de règles grammaticales (grammaire). Cette grammaire syntagmatique/générative transformationnelle constitue un nouveau procédé pour mémoriser des phrases cibles dans la grammaire. Elle fait appel à la GSL (<= Grammar Specification Language >=), mais structure les phrases à mémoriser de manière novatrice. Elle se fonde sur les règles de la grammaire syntagmatique et sur le concept de grammaire générative transformationnelle de Noam Chomsky.

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