Patent Document ID: 6023677
Application ID: 08875262

Base Claim:
1. A method for the speech recognition of sentences that are put together from several words of a given vocabulary, wherein a limited number of permissible sentences are predetermined, the permissible sentences having a syntax and the words of the given vocabulary having syntactical positions in the permissible sentences, said method comprising the steps of: (a) providing an N-gram speech model into which the syntax of the permissible sentences is integrated, the speech model being such that words which recur in the permissible sentences in different syntactical positions are distinguished from one another in the speech model, according to syntactical constraints, by indexes that are valid for the syntactical positions of the words which recur; (b) conducting a recognition process; and (c) while the recognition process of step (b) is in progress, examining only a matching of an actual speech signal with permissible N-gram word sequences that are determined through consideration of the syntactical constraints by consideration of the indexes of the speech model.

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Claim 7:
7. A method according to claim 1, wherein the permissible word sequences are determined in step (c) through continuous consideration of the syntactical constraints.