Patent Document ID: 6016470
Application ID: 08969031

Base Claim:
1. A rejection grammar process for use in speech recognition of an utterance comprising the steps of: selecting a digitized sub-list of phoneme models from a digitized list of phoneme models in a language, presenting a digitized sequential representation of the utterance to the rejection grammar process, and calculating a first set of probabilities indicating how well the digitized sequential representation of the utterance matches sequential combinations, or paths, of the digitized sub-list of phoneme models.

---

Claim 3:
3. A speech recognition process comprising the rejection grammar process as set forth in claim 1 and further comprising the steps of: generating a digitized list of words, comparing the digitized sequential representation of the utterance to sequences of said digitized list of words using an accepted main grammar process, calculating a second set of probabilities from said comparing step, determining the highest probabilities from each of the first and the second sets of probabilities, comparing the highest probabilities from each of the first and second sets of probabilities, if the highest probability is found in the first set of probabilities, rejecting the utterance, and if the highest probability is found in the second set of probabilities, accepting the utterance.