Data processing: speech signal processing – linguistics – language – Speech signal processing – For storage or transmission
Reexamination Certificate
2005-12-20
2005-12-20
Abebe, Daniel (Department: 2655)
Data processing: speech signal processing, linguistics, language
Speech signal processing
For storage or transmission
C704S200000
Reexamination Certificate
active
06978236
ABSTRACT:
The present invention provides a new method and an apparatus for spectral envelope encoding. The invention teaches how to perform and signal compactly a time/frequency mapping of the envelope representation, and further, encode the spectral envelope data efficiently using adaptive time/frequency directional coding. The method is applicable to both natural audio coding and speech coding systems and is especially suited for coders using SBR [WO 98/57436] or other high frequency reconstruction methods.
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Ekstrand Per
Henn Fredrik
Kjorling Kristofer
Liljeryd Lars Gustaf
Abebe Daniel
Birch & Stewart Kolasch & Birch, LLP
Coding Technologies AB
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