Audio entropy encoder/decoder with different spectral resolutions and transform lengths and upsampling and/or downsampling

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12230285
APP PUB NO 20240249734A1
SERIAL NO

18628556

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Abstract

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An audio encoder for encoding segments of coefficients, the segments of coefficients representing different time or frequency resolutions of a sampled audio signal, the audio encoder including a processor for deriving a coding context for a currently encoded coefficient of a current segment based on a previously encoded coefficient of a previous segment, the previously encoded coefficient representing a different time or frequency resolution than the currently encoded coefficient. The audio encoder further includes an entropy encoder for encoding entropy the current coefficient based on the coding context to obtain an encoded audio stream.

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Patent Owner(s)

  • FRAUNHOFER - GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bacigalupo, Virgilio Nuremberg, DE 13 339
Fuchs, Guillaume Nuremberg, DE 236 3361
Geyersberger, Stefan Wuerzburg, DE 73 1487
Grill, Bernhard Lauf, DE 175 3858
Multrus, Markus Nuremberg, DE 237 3818
Rettelbach, Nikolaus Nuremberg, DE 142 3154

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