Voice command processing system and computer therefor, and voice command processing method

摘要

When a user issued voice command does not match grammars registered in advance, the voice command is identified as a sentence (step S 305 ). This sentence is compared with the registered grammars to calculate a similarity (step S 307 ). When the similarity is higher than a first threshold value (TH 1 ), the voice command is executed (step S 315 ). When the similarity is equal to or lower than the first threshold value (TH 1 ) and higher than a second threshold value (TH 2 ), command choices are displayed for the user and the user is permitted to select a command to be executed (step S 319 ). When the similarity is equal to or lower than the second threshold value (TH 2 ), the command is not executed (step S 321 ). Furthermore, once a command has been executed it is added as a grammar, so that it can be identified when next it is used.