Speech dialogue system for facilitating improved human-computer

Details Speech dialogue system for facilitating improved human-computer Speech dialogue system for facilitating improved human-computer

1992-11-18

1994-10-18

MacDonald, Allen R.

395 279, 395 26, G10L 900

Patent

active

053575962

ABSTRACT:
A speech dialogue system capable of realizing natural and smooth dialogue between the system and a human user, and easy maneuverability of the system. In the system, a semantic content of input speech from a user is understood and a semantic content determination of a response output is made according to the understood semantic content of the input speech. Then, a speech response and a visual response according to the determined response output are generated and outputted to the user. The dialogue between the system and the user is managed by controlling transitions between user states during which the input speech is to be entered and system states during which the system response is to be outputted. The understanding of a semantic content of input speech from a user is made by detecting keywords in the input speech, with the keywords to be detected in the input speech limited in advance, according to a state of a dialogue between the user and the system.

REFERENCES:
patent: 4677569 (1987-06-01), Nakano et al.
patent: 4856066 (1989-08-01), Lemelson
patent: 5068645 (1991-11-01), Drumm
patent: 5219291 (1993-06-01), Fong et al.
IEEE, Sep. 1992, pp. 197-200, Hiroyuki Tsuboi, et al., "A Real-Time Task-Oriented Speech Understanding System Using Keyword-Spotting".
IEEE, Jul. 1991, pp. 905-908, Yoichi Takebayashi, et al., "A Robust Speech Recognition System Using Work-Spotting with Noise Immunity Learning".

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