Data processing: speech signal processing – linguistics – language – Audio signal bandwidth compression or expansion
Reexamination Certificate
2007-11-20
2007-11-20
Armstrong, Angela (Department: 2626)
Data processing: speech signal processing, linguistics, language
Audio signal bandwidth compression or expansion
Reexamination Certificate
active
09700611
ABSTRACT:
The present invention relates to an additional information embedding method for embedding additional information into an audio signal, in which the audio signal is MDCT-transformed to calculate an MDCT coefficient and the calculated MDCT coefficient is damped, shifted in the direction of the frequency axis and added to the original MDCT coefficient, thereby embedding the additional information as a watermark into the audio signal.
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Armstrong Angela
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
Sony Corporation
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