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Sub-Audible Speech Recognition Based upon Electromyographic SignalsMethod and system for processing and identifying a sub-audible signal formed by a source of sub-audible sounds. Sequences of samples of sub-audible sound patterns ("SASPs") for known words/phrases in a selected database are received for overlapping time intervals, and Signal Processing Transforms ("SPTs") are formed for each sample, as part of a matrix of entry values. The matrix is decomposed into contiguous, non-overlapping two-dimensional cells of entries, and neural net analysis is applied to estimate reference sets of weight coefficients that provide sums with optimal matches to reference sets of values. The reference sets of weight coefficients are used to determine a correspondence between a new (unknown) word/phrase and a word/phrase in the database.
Document ID
20120010614
Acquisition Source
Headquarters
Document Type
Other - Patent
Authors
Jorgensen, Charles C.
Lee, Diana D.
Agabon, Shane T.
Date Acquired
August 26, 2013
Publication Date
June 12, 2012
Subject Category
Acoustics
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-Case-ARC-15040-1|US-Patent-8,200,486
Patent Application
US-Patent-Appl-SN-10/457,696

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