Patent ID: 6112174
Filing Date: 2000-08-29
Classification: G01C,G10L

Abstract:
A speech recognition system for a vehicle, comprising:a first storage section for storing a plurality of dictionaries each of which including a dictionary in which any number or designated number of words or sentences to be made an object of speech recognition are prepared and defined corresponding to a specific one of a plurality of areas on a map;a second storage section for storing a dictionary selected from said plurality of dictionaries;a dictionary change-over section for making a change-over between said plurality of dictionaries to select a dictionary from said plurality of dictionaries, in response to input of dictionary change-over information based on position information generated from a Global Positioning System for vehicle navigation;a speech analysis section for performing a speech analysis processing for an input speech;a speech recognition section for performing a speech recognition processing for the result of speech analysis by said speech analysis section from the dictionary selected by said dictionary change-over section and stored in said second storage section and an acoustic model; anda display section for providing a visual display of said dictionary change-over information to inform a user of the location of said vehicle relative to a particular area on the map and the number of words used for said speech recognition is limited to a predetermined number in accordance with a scale of the map displayed on said display section.