Data processing: speech signal processing – linguistics – language – Speech signal processing – Psychoacoustic
Reexamination Certificate
2005-11-15
2005-11-15
Lerner, Martin (Department: 2654)
Data processing: speech signal processing, linguistics, language
Speech signal processing
Psychoacoustic
C704S501000
Reexamination Certificate
active
06965859
ABSTRACT:
A method and apparatus for audio compression receives an audio signal. Transform coding is applied to the audio signal to generate a sequence of transform frequency coefficients. The sequence of transform frequency coefficients is partitioned into a plurality of non-uniform width frequency ranges and then zero value frequency coefficients are inserted at the boundaries of the non-uniform width frequency ranges. As a result, certain of the transform frequency coefficients that represent high frequencies are dropped.
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Kolesnik Victor D.
Kudryashov Boris D.
Ovsyannikov Evgeny
Petrov Sergey
Trofimov Andrey
Blakey Sokoloff Taylor & Zafman LLP
Lerner Martin
XVD Corporation
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