G - Physics – 10 – L
Patent
G - Physics
10
L
354/54
G10L 15/18 (2006.01) G10L 15/08 (2006.01)
Patent
CA 1242028
SPEECH RECOGNITION SYSTEM WITH EFFICIENT STORAGE AND RAPID ASSEMBLY OF PHONOLOGICAL GRAPHS Abstract A continuous speech recognition system is disclosed having a speech processor and a word recognition computer subsystem, charcterized by means associated with the speech processor for developing a graph of confluent links between confluent nodes; means associated with the speech processor for developing a graph of boundary links between adjacent words; means associated with the speech processor for storing an inventory of confluent links and boundary links as a coding inventory; means associated with the speech processor for converting an unknown utterance into an encoded sequence of confluent links and boundary links corresponding to recognition sequences stored in said word recognition subsystem recognition vocabulary for speech recognition. The invention also includes method for achieving continuous speech recognition by characterizing speech as a sequence of confluent links which are matched with candidate words. The invention also applies to isolated word speech recognition as with continuous speech recognition, except that in such case there are no boundary links.
504805
Bahl Lalit R.
Cohen Paul S.
Mercer Robert L.
International Business Machines Corporation
Rosen Arnold
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