Multimodal voice dialing digital key telephone with dialog manag

Details Multimodal voice dialing digital key telephone with dialog manag Multimodal voice dialing digital key telephone with dialog manag

1996-09-30

1999-04-06

Weaver, Scott L.

Telephonic communications

Audio message storage, retrieval, or synthesis

Voice activation or recognition

379 9317, H04M 100

Patent

active

058928138

ABSTRACT:
The multimodal telephone prompts the user using both a visual display and synthesized voice. It receives user input via keypad and programmable soft keys associated with the display, and also through user-spoken commands. The voice module includes a two stage speech recognizer that models speech in terms of high similarity values. A dialog manager associated with the voice module maintains the visual and verbal systems in synchronism with one another. The dialog manager administers a state machine that records the dialog context. The dialog context is used to ensure that the appropriate visual prompts are displayed--showing what commands are possible at any given point in the dialog. The speech recognizer also uses the dialog context to select the recognized word candidate that is appropriate to the current context.

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patent: 5684925 (1997-11-01), Morin et al.
patent: 5737392 (1998-04-01), Cheng et al.

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