Natural language dialogue system automatically... - Google Patents
Natural language dialogue system automatically continuing conversation on behalf of a user who does not respond.Patent number: 6397188
A natural language conversation system is capable of making interaction between the user and the system smooth by continuing conversation with presenting guidance or with making the system to carry out speech for the user when user cannot response to presentation of the system to cause non-response, and can reduce load required for speech of user. The natural language conversation system includes conversation control portion for outputting data in a conversation scenario, and alternative conversation portion for alternatively inputting a preliminarily prepared natural language data to the conversation control means on behalf of a user when the user fails to input within a predetermined period.
Filing date: Jul 20, 1999
Issue date: May 28, 2002
Inventor: Tohru Iwasawa
Assignee: NEC Corporation