Patent ID: 6308152
Filing Date: 2001-10-23
Classification: G10L

Abstract:
A speech recognition method, comprising the steps of:registering an acoustic feature of a recognition-desired word desired to be recognized for each of a plurality of recognition-desired words;registering an acoustic feature of a reception word differing from the recognition-desired words for each of a plurality of recognition-desired words;receiving an utterance including an uttered word;calculating a recognition-desired word recognition score indicating a similarity degree between the uttered word and each recognition-desired word by comparing the acoustic feature of the recognition-desired word with an acoustic feature of the uttered word;calculating a reception word recognition score indicating a similarity degree between the uttered word and each reception word by comparing the acoustic feature of the reception word with the acoustic feature of the uttered word;recognizing the uttered word as a particular recognition-desired word corresponding to a particular recognition-desired word recognition score in cases where the particular recognition-desired word recognition score is higher than the highest reception word recognition score; andrejecting the utterance in cases where the highest recognition-desired word recognition score is equal to or lower than the highest reception word recognition score.