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Speech interpreter with a unified grammer compiler

  • US 5,642,519 A
  • Filed: 04/29/1994
  • Issued: 06/24/1997
  • Est. Priority Date: 04/29/1994
  • Status: Expired due to Term
First Claim
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1. A method for converting a lexicon and a unified grammar (UG) description into a speech recognition (SR) grammar for controlling a speech recognizer, the lexicon including a plurality of UG word entries having predefined characteristics and the UG description including a plurality of UG rules, each UG rule having at least one augmentation, the UG rules defining grammatically allowable word sequences, the method being implemented as a plurality of program instructions and data stored in a memory of a system including a central processing unit (CPU) with the memory coupled to the CPU, a system bus coupled to the CPU, and an input means coupled to the system bus for receiving a digital signal representative of an acoustic signal, the method including the steps of:

  • generating from the lexicon a plurality of SR word entries in said SR grammar corresponding to said plurality of UG word entries;

    generating from the lexicon and the UG description a plurality of permissible SR word sequences and a plurality of SR rules in said SR grammar, said SR word sequences and said SR rules corresponding to the augmentations of said UG rules; and

    storing said SR word entries, said permissible SR word sequences and said SR rules in the memory.

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