Recognizing entries in lexical lists
First Claim
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1. A method of recognizing speech, comprising:
- detecting a verbal utterance;
converting the verbal utterance into a speech signal;
digitizing the speech signal;
generating at least two string hypotheses corresponding to the speech signal;
assigning a score to each of the at least two string hypotheses; and
comparing at least one of the string hypotheses with an entry in the lexical list based on the score of the at least one string hypothesis.
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Abstract
A system recognizes speech using lexical lists. The lexical list may have entries that correspond to words or commands. The system includes an interface for receiving voiced speech and a recognition unit that generates string hypotheses based on the voiced speech. The recognition unit assigns a score to each of the string hypotheses. One of the string hypotheses is compared with an entry in the lexical list by a comparison unit. An assignment unit may then assign one of the string hypotheses to an entry in the lexical list.
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Citations
28 Claims
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1. A method of recognizing speech, comprising:
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detecting a verbal utterance;
converting the verbal utterance into a speech signal;
digitizing the speech signal;
generating at least two string hypotheses corresponding to the speech signal;
assigning a score to each of the at least two string hypotheses; and
comparing at least one of the string hypotheses with an entry in the lexical list based on the score of the at least one string hypothesis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A system for recognizing speech using long lexical lists stored in a database, comprising:
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a database that stores a lexical list;
an interface in communication with the database that detects a speech signal;
a processor in communication with the interface that digitizes the detected speech signal;
a recognition unit in communication with the processor that generates a plurality of string hypotheses corresponding to the speech signal and assigns a score to each of the plurality of string hypotheses;
a comparison unit that compares at least one of the plurality of string hypotheses with an entry in the lexical list based on the score of the at least one string hypothesis; and
,an assignment unit that assigns the at least one string hypothesis to the entry in the lexical list based on a comparison of the at least one string hypothesis with the entry in the at least one lexical list and the score of the at least one string hypothesis. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A system for recognizing speech using long lexical lists stored in a database, comprising:
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a database that stores a lexical list;
an interface in communication with the database that detects a speech signal;
a processor in communication with the interface that digitizes the detected speech signal;
means for generating a plurality of string hypotheses corresponding to the speech signal and for assigning a score to each of the plurality of string hypotheses;
means for comparing at least one of the plurality of string hypotheses with an entry in the lexical list based on the score of the at least one string hypothesis; and
,means for assigning the at least one string hypothesis to the entry in the lexical list based on a comparison of the at least one string hypothesis with the entry in the at least one lexical list and the score of the at least one string hypothesis.
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Specification