Patent ID: 7127398
Filing Date: 2006-10-24
Classification: G10L

Abstract:
1. An interactive system comprising: a voice input section inputting voice uttered by a user; a voice recognition processing section recognizing the voice inputted by the voice input section, and converting the recognized voice into an input symbol string; a conversation pattern processing section inputting said input symbol string from the voice recognition processing section, and outputting an output symbol string corresponding to said input symbol string based on a conversation pattern described in advance; a voice synthesis processing section converting said output symbol string from the conversation pattern processing section into voice; a voice output section outputting and uttering the voice from the voice synthesis processing section; and a conversation characteristic control section grasping conversation characteristics of said user and changing said output symbol string in accordance with the grasped conversation characteristics, the grasped conversation characteristics based on the continuity of conversation with respect to a specific topic, wherein said conversation characteristic control section optimizes a conversation topic, a conversation pattern, uttered words, a conversation response interval, utterance frequency and timing during the utterance based on words and a conversation pattern used by the user with high frequency, a specific topic, times of conversation responses and utterance time and the number of words uttered by the user.