BROWSE
Detail
Registered SPEECH RECOGNITION SYSTEM FOR MOBILE TERMINAL
- Inventors
- Chung Hoon, Lee Yunkeun
- Application No.
- 11642132 (2006.12.20)
- Publication No.
- 20080059185 (2008.03.06)
- Registration No.
- 7856356 (2010.12.21)
- Country
- UNITED STATES
- Project Code
- 06MW1800, Development of large vocabulary/interactive distributed VUI for new growth engine industries, Young Jik Lee
- Abstract
- A speech recognition system for a mobile terminal includes an acoustic variation channel unit and a pronunciation channel unit. The acoustic variation channel unit transforms a speech signal into feature parameters and Viterbi-decodes the speech signal to produce a varied phoneme sequence by using the feature parameters and predetermined models. Further, the pronunciation variation channel unit Viterbi-decodes the varied phoneme sequence to produce a word phoneme sequence by using the varied phoneme sequence and a preset DHMM (Discrete Hidden Markov Model) based context-dependent error model.
- KSP Keywords
- Discrete Hidden Markov Model(DHMM), Error model, Feature parameter, Hidden Markov, Hidden markov model(HMM), Markov model, Recognition system, Speech Signals, Speech recognition system, context-dependent, mobile terminal, speech recognition