Data processing: speech signal processing – linguistics – language – Speech signal processing – Recognition
Reexamination Certificate
2003-03-18
2010-06-01
Hudspeth, David R (Department: 2626)
Data processing: speech signal processing, linguistics, language
Speech signal processing
Recognition
C704S251000
Reexamination Certificate
active
07729913
ABSTRACT:
Various processes are disclosed for conducting database searches by telephone. A user is initially prompted to utter N characters of a search query, and/or to enter these characters on a telephone keypad. Based on the user's entry, a speech recognition grammar is either selected or is generated dynamically for processing the user's utterance of the complete search query. In one embodiment, the speech recognition grammar is selected based on a sequence of N telephone keys selected by the user, without requiring the user to uniquely specify the N characters to which these keys correspond. In another embodiment, the speech recognition grammar is selected based solely on utterances of the N characters by the user such that the correct grammar is selected even if an utterance of one character is misidentified as an utterance of a similar sounding character. Also disclosed are methods for generating speech recognition grammars from query logs.
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Co-pending U.S. Appl. No. 09/650,173, filed Aug. 29, 2000.
Frederick Robert
Lee Nicholas J.
Schoenbaum Ronald J.
A9.com, Inc.
Hudspeth David R
Knobbe Martens Olson & Bear LLP
Neway Samuel G
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