Extended finite state grammar for speech recognition systems
First Claim
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1. A computerized method comprising:
- generating an extended finite state grammar structure comprising a first word sub-graph representing a set of pre-defined word strings for words in a finite state grammar, and a second word sub-graph representing a set of all possible word strings for the words in the finite state grammar, wherein the extended finite state grammar structure is subsequently used to transform audio input into at least one of the word strings.
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Abstract
An extended finite state grammar structure is generated from a finite state grammar. The extended finite state grammar structure includes word subgraphs representing a set of pre-defined word strings for words in the finite state grammar, and a set of all possible word strings for the words. The extended finite state grammar structure can be used to transform audio input into one or more of the word strings.
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Citations
13 Claims
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1. A computerized method comprising:
generating an extended finite state grammar structure comprising a first word sub-graph representing a set of pre-defined word strings for words in a finite state grammar, and a second word sub-graph representing a set of all possible word strings for the words in the finite state grammar, wherein the extended finite state grammar structure is subsequently used to transform audio input into at least one of the word strings. - View Dependent Claims (2, 3, 4)
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5. A machine-readable medium having executable instructions to cause a machine to perform a method comprising:
generating an extended finite state grammar structure comprising a first word sub-graph representing a set of pre-defined word strings for words in a finite state grammar, and a second word sub-graph representing a set of all possible word strings for the words in the finite state grammar. - View Dependent Claims (6, 7, 8)
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9. A computer system comprising:
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a processor; and a memory coupled to the processor through a bus, wherein the processor is configured to generate an extended finite state grammar structure, the extended finite state grammar structure comprising a first word sub-graph stored in the memory and corresponding to a set of pre-defined word strings for words in a finite state grammar, and a second word sub-graph stored in the memory and corresponding to a set of all possible word strings in the finite state grammar. - View Dependent Claims (10, 11, 12)
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13. An apparatus comprising:
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means for speech recognition; means for semantic classification; and an extended context-free grammar, the extended context free grammar comprising a first word sub-graph representing a set of pre-defined word strings for words in a finite state grammar, and a second word sub-graph representing a set of all possible word strings for the words in the finite state grammar, wherein the means for speech recognition outputs a word string selected from the extended context free grammar to the means for semantic classification in response to speech input into the means for speech recognition.
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Specification