Tegic Communications, Inc.

Nuance Communications, Inc.

America Online, Inc.

Richard Eyraud

Keith Charles Hullfish

Michael R Longé

Michael R Longe

Pim Van Meurs

Ethan Robert Bradford

James Stephanick

David Jon Kay

Michael Long

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.

Multimodal disambiguation of speech recognition

An apparatus and method for providing visual indication of character ambiguity and ensuing reduction of such ambiguity during text entry are described. An application text entry field is presented in a display screen, into which the user enters text by means of a reduced keyboard and a disambiguating system. The default or most likely word construct for the current key sequence may be presented at the insertion point of the text entry field. An indication of ambiguity is presented in the display screen to communicate to the user the possible ambiguous characters associated with each key. A word choice list field may also be present to display at least one word construct matching the current key sequence.

Apparatus and method for providing visual indication of character ambiguity during text entry

From a text entry tool, a digital data processing device receives inherently ambiguous user input. Independent of any other user input, the device interprets the received user input against a vocabulary to yield candidates such as words (of which the user input forms the entire word or part such as a root, stem, syllable, affix), or phrases having the user input as one word. The device displays the candidates and applies speech recognition to spoken user input. If the recognized speech comprises one of the candidates, that candidate is selected. If the recognized speech forms an extension of a candidate, the extended candidate is selected. If the recognized speech comprises other input, various other actions are taken.

Method and apparatus utilizing voice input to resolve ambiguous manually entered text input

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Richard Eyraud