07308404 is referenced by 93 patents and cites 11 patents.

A method and apparatus are provided for performing speech recognition using a dynamic vocabulary. Results from a preliminary speech recognition pass can be used to update or refine a language model in order to improve the accuracy of search results and to simplify subsequent recognition passes. This iterative process greatly reduces the number of alternative hypotheses produced during each speech recognition pass, as well as the time required to process subsequent passes, making the speech recognition process faster, more efficient and more accurate. The iterative process is characterized by the use of results from one or more data set queries, where the keys used to query the data set, as well as the queries themselves, are constructed in a manner that produces more effective language models for use in subsequent attempts at decoding a given speech signal.

Title
Method and apparatus for speech recognition using a dynamic vocabulary
Application Number
10/912517
Publication Number
7308404 (B2)
Application Date
August 5, 2004
Publication Date
December 11, 2007
Inventor
Douglas A Bercow
Menlo Park
CA, US
Horacio E Franco
Menlo Park
CA, US
Anand Venkataraman
Palo Alto
CA, US
Agent
Patterson & Sheridan
Kin Wah Tong Esq
Assignee
SRI International
CA, US
IPC
G10L 15/18
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