A speech recognition system recognizes filled pause utterances made by a speaker. In one embodiment, an ergodic model is used to acoustically model filled pauses that provides flexibility allowing varying utterances of the filled pauses to be made. The ergodic HMM model can also be used for other types...http://www.google.de/patents/US20040181410?utm_source=gb-gplus-sharePatent US20040181410 - Modelling and processing filled pauses and noises in speech recognition
