Data processing: speech signal processing – linguistics – language – Speech signal processing – Recognition
Reexamination Certificate
2006-12-12
2010-11-16
Smits, Talivaldis Ivars (Department: 2626)
Data processing: speech signal processing, linguistics, language
Speech signal processing
Recognition
C704S240000, C704S263000, C704S269000
Reexamination Certificate
active
07835909
ABSTRACT:
A method and apparatus for normalizing a histogram utilizing a backward cumulative histogram which can cumulate a probability distribution function in an order from a greatest to smallest value so as to estimate a noise robust histogram. A method of normalizing a speech feature vector includes: extracting the speech feature vector from a speech signal; calculating a probability distribution function using the extracted speech feature vector; calculating a backward cumulative distribution function by cumulating the probability distribution function in an order from a largest to smallest value; and normalizing a histogram using the backward cumulative distribution function.
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Jang Gil Jin
Jeong So-Young
Oh Kwang Cheol
Kovacek David
Samsung Electronics Co,. Ltd.
Smits Talivaldis Ivars
Staas & Halsey , LLP
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