Multimodal disambiguation of speech recognition

Details Multimodal disambiguation of speech recognition Multimodal disambiguation of speech recognition

G - Physics

09

G

G09G 5/00 (2006.01)

Patent

CA 2567958

The present invention provides a speech recognition system combined with one or more alternate input modalities to ensure efficient and accurate text input. The speech recognition system achieves less than perfect accuracy due to limited processing power, environmental noise, and/or natural variations in speaking style. The alternate input modalities use disambiguation or recognition engines to compensate for reduced keyboards, sloppy input, and/or natural variations in writing style. The ambiguity remaining in the speech recognition process is mostly orthogonal to the ambiguity inherent in the alternate input modality, such that the combination of the two modalities resolves the recognition errors efficiently and accurately. The invention is especially well suited for mobile devices with limited space for keyboards or touch-screen input.

La présente invention concerne un système de reconnaissance vocale combiné à au moins une modalité d'entrée alternée afin de garantir une entrée de texte efficace et précise. Ce système de reconnaissance vocale n'atteint pas une précision de 100 % en raison d'une puissance de traitement limitée, du bruit environnant et/ou de variations naturelles dans le style parlé. Ces modalités d'entrée alternées utilisent des moteurs de reconnaissance ou de désambiguïsation de manière à compenser des claviers réduits, une entrée bâclée, et/ou des variations naturelles du style d'écriture. L'ambiguïté restant dans le processus de reconnaissance vocale est, en grande partie, orthogonale à l'ambiguïté inhérente à la modalité d'entrée alternée, de telle manière que la combinaison des deux modalités permet de résoudre, efficacement et avec précision, les erreurs de reconnaissance. Le système de cette invention est spécifiquement approprié à des dispositifs mobiles dotés d'un espace limité pour les claviers ou l'entrée d'écran tactile.

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