Patent ID: 6393398
Filing Date: 2002-05-21
Classification: G10L

Abstract:
A continuous speech recognizing apparatus that obtains from input continuous speech a plurality of speech recognition candidates of a word string using a simple probabilistic language model in a first pass processor, and that determines a speech recognition result of the plurality of speech recognition candidates using a complex probabilistic language model in a second pass processor, whereinsaid first pass processor obtains word strings of the plurality of speech recognition candidates of the continuous speech at fixed time intervals from an input start time, and said second pass processor comprises: word string selecting means for selecting, using the complex probabilistic language model, a maximum likelihood word string from among the word strings of the plurality of speech recognition candidates obtained at the fixed time intervals, and speech recognition result determining means for detecting a stable portion in word strings detected at every fixed intervals, and for successively determining a word string of the stable portion as the speech recognition result.