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US Patent 11942101 Audio entropy encoder/decoder with arithmetic coding and coding context

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Contents

Patent abstractTimelineTable: Further ResourcesReferences
Is a
Patent
Patent
1

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
119421011
Patent Inventor Names
Bernhard Grill1
Virgilio Bacigalupo1
Guillaume Fuchs1
Nikolaus Rettelbach1
Markus Multrus1
Stefan Geyersberger1
Date of Patent
March 26, 2024
1
Patent Application Number
183011941
Date Filed
April 14, 2023
1
Patent Citations
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US Patent 7617110 Lossless audio decoding/encoding method, medium, and apparatus
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US Patent 8095359 Method and apparatus for encoding and decoding an audio signal using adaptively switched temporal resolution in the spectral domain
1
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US Patent 8447591 Factorization of overlapping tranforms into two block transforms
1
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US Patent 8447620 Multi-resolution switched audio encoding/decoding scheme
1
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US Patent 8494865 Audio decoder, audio encoder, method for decoding an audio signal, method for encoding an audio signal, computer program and audio signal
1
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US Patent 8612240 Audio encoder, audio decoder, method for encoding an audio information, method for decoding an audio information and computer program using a region-dependent arithmetic coding mapping rule
1
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US Patent 8645145 Audio encoder, audio decoder, method for encoding and audio information, method for decoding an audio information and computer program using a hash table describing both significant state values and interval boundaries
1
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US Patent 8655669 Audio encoder, audio decoder, method for encoding an audio information, method for decoding an audio information and computer program using an iterative interval size reduction
1
...
Patent Primary Examiner
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Martin Lerner
1
CPC Code
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H04N 19/13
1
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G10L 19/0017
1
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G10L 19/022
1
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G10L 19/025
1
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H03M 7/30
1
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H04N 19/91
1
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H03M 7/3059
1
Patent abstract

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 entropy encoding the current coefficient based on the coding context to obtain an encoded audio stream.

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