专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明申请

US20110173009A1 Apparatus and Method for Encoding/Decoding an Audio Signal Using an Aliasing Switch Scheme 有权
标题翻译：使用混叠开关方案对音频信号进行编码/解码的装置和方法
公开(公告)号：US20110173009A1
公开(公告)日：2011-07-14
申请号：US13004351
申请日：2011-01-11
申请人： Guillaume Fuchs , Jeremie Lecomte , Stefan Bayer , Ralf Geiger , Markus Multrus , Gerald Schuller , Jens Hirschfeld
发明人： Guillaume Fuchs , Jeremie Lecomte , Stefan Bayer , Ralf Geiger , Markus Multrus , Gerald Schuller , Jens Hirschfeld
IPC分类号： G10L19/00
CPC分类号： G10L19/20 , G10L19/02 , G10L19/022 , G10L19/04
摘要： An apparatus for encoding an audio signal includes the windower for windowing a first block of the audio signal using an analysis window having an aliasing portion and a further portion. The apparatus furthermore includes a processor for processing the first sub-block of the audio signal associated with the aliasing portion by transforming the sub-block from a domain into a different domain subsequent to windowing the first sub-block to obtain the processed first sub-block, and for processing a second sub-block of the audio signal associated with the further portion by transforming the second sub-block from the domain into the different domain before windowing the second sub-block to obtain a processed second sub-block. The apparatus furthermore includes a transformer for converting the processed first sub-block and the processed second sub-block from the different domain into a further different domain using the same block transform rule to obtain a converted first block which may then be compressed using any of the well-known data compression algorithms. Thus, a critically sampled switch between two coding modes can be obtained, since aliasing portions occurring in two different domains are matched to each other.
摘要翻译：用于编码音频信号的装置包括用于使用具有混叠部分和另一部分的分析窗口对音频信号的第一块进行加窗的加窗器。该装置还包括处理器，用于通过在将第一子块加窗以获得处理的第一子块之后，将子块从域变换为不同的域来处理与混叠部分相关联的音频信号的第一子块，并且用于通过在开启第二子块之前将第二子块从该域变换为不同的域来处理与另一部分相关联的音频信号的第二子块，以获得经处理的第二子块。该装置还包括一个变换器，用于使用相同的块变换规则将处理的第一子块和处理的第二子块从不同的域转换成另一个不同的域，以获得转换的第一块，然后可以使用众所周知的数据压缩算法。因此，由于发生在两个不同域中的混叠部分彼此匹配，因此可以获得两种编码模式之间的批量采样切换。

22. 发明申请

US20110173007A1 Audio Encoder and Audio Decoder 有权
标题翻译：音频编码器和音频解码器
公开(公告)号：US20110173007A1
公开(公告)日：2011-07-14
申请号：US13004282
申请日：2011-01-11
申请人： Markus Multrus , Bernhard Grill , Guillaume Fuchs , Stefan Geyersberger , Nikolaus Rettelbach , Virgilio Bacigalupo
发明人： Markus Multrus , Bernhard Grill , Guillaume Fuchs , Stefan Geyersberger , Nikolaus Rettelbach , Virgilio Bacigalupo
IPC分类号： G10L19/00
CPC分类号： G10L19/02 , G10L19/022 , H03M7/30
摘要： 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.
摘要翻译：一种用于对系数段进行编码的音频编码器，表示采样音频信号的不同时间或频率分辨率的系数段，音频编码器包括用于基于先前编码的当前段的当前编码系数导出编码上下文的处理器前一段的系数，先前编码的系数表示与当前编码系数不同的时间或频率分辨率。音频编码器还包括熵编码器，用于基于编码上下文对当前系数进行熵编码，以获得经编码的音频流。

23. 发明申请

US20100262420A1 AUDIO ENCODER FOR ENCODING AN AUDIO SIGNAL HAVING AN IMPULSE-LIKE PORTION AND STATIONARY PORTION, ENCODING METHODS, DECODER, DECODING METHOD, AND ENCODING AUDIO SIGNAL 有权
标题翻译：用于编码具有脉冲样部分和静止部分的音频信号的编码器，编码方法，解码器，解码方法和编码音频信号
公开(公告)号：US20100262420A1
公开(公告)日：2010-10-14
申请号：US12663828
申请日：2008-06-05
申请人： Juergen Herre , Ralf Geiger , Stefan Bayer , Guillaume Fuchs , Ulrich Kraemer , Nikolaus Rettelbach , Bernhard Grill
发明人： Juergen Herre , Ralf Geiger , Stefan Bayer , Guillaume Fuchs , Ulrich Kraemer , Nikolaus Rettelbach , Bernhard Grill
IPC分类号： G10L19/00
CPC分类号： G10L19/20
摘要： An audio encoder for encoding an audio signal includes an impulse extractor for extracting an impulse-like portion from the audio signal. This impulse-like portion is encoded and forwarded to an output interface. Furthermore, the audio encoder includes a signal encoder which encodes a residual signal derived from the original audio signal so that the impulse-like portion is reduced or eliminated in the residual audio signal. The output interface forwards both, the encoded signals, i.e., the encoded impulse signal and the encoded residual signal for transmission or storage. On the decoder-side, both signal portions are separately decoded and then combined to obtain a decoded audio signal.
摘要翻译：用于对音频信号进行编码的音频编码器包括用于从音频信号中提取脉冲状部分的脉冲提取器。该脉冲状部分被编码并转发到输出接口。此外，音频编码器包括信号编码器，其对从原始音频信号导出的残留信号进行编码，从而在残留音频信号中减少或消除脉冲状部分。输出接口转发编码的信号，即编码的脉冲信号和编码的残留信号用于传输或存储。在解码器侧，两个信号部分被单独解码，然后被组合以获得解码的音频信号。

24. 发明授权

US09230558B2 Device and method for manipulating an audio signal having a transient event 有权
公开(公告)号：US09230558B2
公开(公告)日：2016-01-05
申请号：US13465936
申请日：2012-05-07
申请人： Sascha Disch , Frederik Nagel , Nikolaus Rettelbach , Markus Multrus , Guillaume Fuchs
发明人： Sascha Disch , Frederik Nagel , Nikolaus Rettelbach , Markus Multrus , Guillaume Fuchs
IPC分类号： G06F17/00 , G10L21/04 , G10L19/025
CPC分类号： G10L21/04 , G10L19/025
摘要： A signal manipulator for manipulating an audio signal having a transient event may have a transient remover, a signal processor and a signal inserter for inserting a time portion in a processed audio signal at a signal location where the transient event was removed before processing by the transient remover, so that a manipulated audio signal has a transient event not influenced by the processing, whereby the vertical coherence of the transient event is maintained instead of any processing performed in the signal processor, which would destroy the vertical coherence of a transient.

25. 发明授权

US08930198B2 Low bitrate audio encoding/decoding scheme having cascaded switches 有权
标题翻译：具有级联交换机的低比特率音频编码/解码方案
公开(公告)号：US08930198B2
公开(公告)日：2015-01-06
申请号：US13004385
申请日：2011-01-11
申请人： Bernhard Grill , Roch Lefebvre , Bruno Bessette , Jimmy Lapierre , Philippe Gournay , Redwan Salami , Stefan Bayer , Guillaume Fuchs , Stefan Geyersberger , Ralf Geiger , Johannes Hilpert , Ulrich Kraemer , Jeremie Lecomte , Markus Multrus , Max Neuendorf , Harald Popp , Nikolaus Rettelbach
发明人： Bernhard Grill , Roch Lefebvre , Bruno Bessette , Jimmy Lapierre , Philippe Gournay , Redwan Salami , Stefan Bayer , Guillaume Fuchs , Stefan Geyersberger , Ralf Geiger , Johannes Hilpert , Ulrich Kraemer , Jeremie Lecomte , Markus Multrus , Max Neuendorf , Harald Popp , Nikolaus Rettelbach
IPC分类号： G10L19/00 , G10L19/18 , G10L19/16 , G10L19/008 , G10L19/02
CPC分类号： G10L19/008 , G10L19/0017 , G10L19/0212 , G10L19/173 , G10L19/18 , G10L2019/0008
摘要： An audio encoder has a first information sink oriented encoding branch, a second information source or SNR oriented encoding branch, and a switch for switching between the first encoding branch and the second encoding branch, wherein the second encoding branch has a converter into a specific domain different from the spectral domain, and wherein the second encoding branch furthermore has a specific domain coding branch, and a specific spectral domain coding branch, and an additional switch for switching between the specific domain coding branch and the specific spectral domain coding branch. An audio decoder has a first domain decoder, a second domain decoder for decoding a signal, and a third domain decoder and two cascaded switches for switching between the decoders.
摘要翻译：音频编码器具有第一信息汇集编码分支，第二信息源或SNR定向编码分支，以及用于在第一编码分支和第二编码分支之间进行切换的开关，其中第二编码分支具有转换器到特定的域并且其中第二编码分支还具有特定的域编码分支，以及特定频域编码分支，以及用于在特定的域编码分支与特定频域编码分支之间切换的附加开关。音频解码器具有第一域解码器，用于对信号进行解码的第二域解码器，以及用于在解码器之间切换的第三域解码器和两个级联开关。

26. 发明授权

US08804970B2 Low bitrate audio encoding/decoding scheme with common preprocessing 有权
标题翻译：低比特率音频编码/解码方案，具有通用的预处理功能
公开(公告)号：US08804970B2
公开(公告)日：2014-08-12
申请号：US13004453
申请日：2011-01-11
申请人： Bernhard Grill , Stefan Bayer , Guillaume Fuchs , Stefan Geyersberger , Ralf Geiger , Johannes Hilpert , Ulrich Kraemer , Jeremie Lecomte , Markus Multrus , Max Neuendorf , Harald Popp , Nikolaus Rettelbach , Frederik Nagel , Sascha Disch , Juergen Herre , Yoshikazu Yokotani , Stefan Wabnik , Gerald Schuller , Jens Hirschfeld
发明人： Bernhard Grill , Stefan Bayer , Guillaume Fuchs , Stefan Geyersberger , Ralf Geiger , Johannes Hilpert , Ulrich Kraemer , Jeremie Lecomte , Markus Multrus , Max Neuendorf , Harald Popp , Nikolaus Rettelbach , Frederik Nagel , Sascha Disch , Juergen Herre , Yoshikazu Yokotani , Stefan Wabnik , Gerald Schuller , Jens Hirschfeld
IPC分类号： G10L21/00
CPC分类号： G10L19/173 , G10L19/0017 , G10L19/008 , G10L19/0212 , G10L19/18 , G10L2019/0008
摘要： An audio encoder has a common preprocessing stage, an information sink based encoding branch such as spectral domain encoding branch, a information source based encoding branch such as an LPC-domain encoding branch and a switch for switching between these branches at inputs into these branches or outputs of these branches controlled by a decision stage. An audio decoder has a spectral domain decoding branch, an LPC-domain decoding branch, one or more switches for switching between the branches and a common post-processing stage for post-processing a time-domain audio signal for obtaining a post-processed audio signal.
摘要翻译：音频编码器具有通用的预处理级，诸如频域编码分支的基于信息宿的编码分支，诸如LPC域编码分支的基于信息源的编码分支以及用于在这些分支的输入处切换这些分支之间的切换，或这些分支的输出由决策阶段控制。音频解码器具有频域解码分支，LPC域解码分支，用于在分支之间切换的一个或多个开关和用于后处理时域音频信号以用于获得后处理音频的公共后处理级信号。

27. 发明授权

US08571858B2 Method and discriminator for classifying different segments of a signal 有权
标题翻译：用于对信号的不同段进行分类的方法和鉴别器
公开(公告)号：US08571858B2
公开(公告)日：2013-10-29
申请号：US13004534
申请日：2011-01-11
申请人： Guillaume Fuchs , Stefan Bayer , Jens Hirschfeld , Juergen Herre , Jeremie Lecomte , Frederik Nagel , Nikolaus Rettelbach , Stefan Wabnik , Yoshikazu Yokotani
发明人： Guillaume Fuchs , Stefan Bayer , Jens Hirschfeld , Juergen Herre , Jeremie Lecomte , Frederik Nagel , Nikolaus Rettelbach , Stefan Wabnik , Yoshikazu Yokotani
IPC分类号： G10L15/00
CPC分类号： G10L19/20 , G10L19/22 , G10L25/00 , G10L25/51 , G10L2025/783
摘要： For classifying different segments of a signal which has segments of at least a first type and second type, e.g. audio and speech segments, the signal is short-term classified on the basis of the at least one short-term feature extracted from the signal and a short-term classification result is delivered. The signal is also long-term classified on the basis of the at least one short-term feature and at least one long-term feature extracted from the signal and a long-term classification result is delivered. The short-term classification result and the long-term classification result are combined to provide an output signal indicating whether a segment of the signal is of the first type or of the second type.
摘要翻译：用于分类具有至少第一类型和第二类型的段的信号的不同段，例如，音频和语音段，信号是根据从信号中提取的至少一个短期特征进行短期分类的，并且传送短期分类结果。信号也是基于至少一个短期特征和从该信号提取的至少一个长期特征和长期分类结果进行长期分类的。组合短期分类结果和长期分类结果以提供指示信号的片段是第一类型还是第二类型的输出信号。

28. 发明授权

US08494865B2 Audio decoder, audio encoder, method for decoding an audio signal, method for encoding an audio signal, computer program and audio signal 有权
标题翻译：音频解码器，音频编码器，用于解码音频信号的方法，用于编码音频信号的方法，计算机程序和音频信号
公开(公告)号：US08494865B2
公开(公告)日：2013-07-23
申请号：US13081241
申请日：2011-04-06
申请人： Guillaume Fuchs , Markus Multrus , Ralf Geiger , Arne Borsum , Frederik Nagel , Julien Robilliard , Vignesh Subbaraman , Jeremie Lecomte
发明人： Guillaume Fuchs , Markus Multrus , Ralf Geiger , Arne Borsum , Frederik Nagel , Julien Robilliard , Vignesh Subbaraman , Jeremie Lecomte
IPC分类号： G10L19/00
CPC分类号： G10L19/0017 , G10L19/02 , G10L19/0204 , G10L19/022 , G10L19/028 , G10L19/035 , G10L25/18
摘要： An audio decoder for providing a decoded audio information on the basis of an entropy encoded audio information includes a context-based entropy decoder configured to decode the entropy-encoded audio information in dependence on a context, which context is based on a previously-decoded audio information in a non-reset state-of-operation. The context-based entropy decoder is configured to select a mapping information, for deriving the decoded audio information from the encoded audio information, in dependence on the context. The context-based entropy decoder includes a context resetter configured to reset the context for selecting the mapping information to a default context, which default context is independent from the previously-decoded audio information, in response to a side information of the encoded audio information.
摘要翻译：用于基于熵编码的音频信息提供解码的音频信息的音频解码器包括：基于上下文的熵解码器，其被配置为根据上下文来解码熵编码的音频信息，该上下文基于先前解码的音频信息处于非复位操作状态。基于上下文的熵解码器被配置为选择映射信息，用于根据上下文从编码的音频信息中导出解码的音频信息。基于上下文的熵解码器包括上下文重置器，被配置为响应于所编码的音频信息的辅助信息，重新设置上下文以选择映射信息到默认上下文，该缺省上下文独立于先前解码的音频信息。

29. 发明申请

US20130013323A1 AUDIO ENCODER, AUDIO DECODER, METHOD FOR ENCODING AND AUDIO INFORMATION, METHOD FOR DECODING AN AUDIO INFORMATION AND COMPUTER PROGRAM USING A MODIFICATION OF A NUMBER REPRESENTATION OF A NUMERIC PREVIOUS CONTEXT VALUE 有权
公开(公告)号：US20130013323A1
公开(公告)日：2013-01-10
申请号：US13547664
申请日：2012-07-12
申请人： Vignesh Subbaraman , Guillaume Fuchs , Markus Multrus , Nikolaus Rettelbach , Oliver Weiss , Marc Gayer , Patrick Warmbold , Christian Griebel
发明人： Vignesh Subbaraman , Guillaume Fuchs , Markus Multrus , Nikolaus Rettelbach , Oliver Weiss , Marc Gayer , Patrick Warmbold , Christian Griebel
IPC分类号： G10L19/00
CPC分类号： G10L19/02 , G10L19/0017 , G10L19/002
摘要： An audio decoder includes an arithmetic decoder for providing decoded spectral values on the basis of an arithmetically-encoded representation of the spectral values and a frequency-domain-to-time-domain converter for providing a time-domain audio representation using the decoded spectral values. The arithmetic decoder selects a mapping rule describing a mapping of a code value onto a symbol code in dependence on a context state described by a numeric current context value, and determines the numeric current context value in dependence on a plurality of previously-decoded spectral values. The arithmetic decoder modifies a number representation of a numeric previous context value, describing a context state associated with one or more previously decoded spectral values, in dependence on a context subregion value, to acquire a number representation of a numeric current context value describing a context state associated with one or more spectral values to be decoded. An audio encoder uses a similar concept.

30. 发明申请

US20130010985A1 DEVICE AND METHOD FOR MANIPULATING AN AUDIO SIGNAL HAVING A TRANSIENT EVENT 审中-公开
公开(公告)号：US20130010985A1
公开(公告)日：2013-01-10
申请号：US13465946
申请日：2012-05-07
申请人： Sascha DISCH , Frederick Nagel , Nikolaus Rettelbach , Markus Multrus , Guillaume Fuchs
发明人： Sascha DISCH , Frederick Nagel , Nikolaus Rettelbach , Markus Multrus , Guillaume Fuchs
IPC分类号： H04B1/00
CPC分类号： G10L21/04 , G10L19/025
摘要： A signal manipulator for manipulating an audio signal having a transient event may have a transient remover, a signal processor and a signal inserter for inserting a time portion in a processed audio signal at a signal location where the transient event was removed before processing by the transient remover, so that a manipulated audio signal has a transient event not influenced by the processing, whereby the vertical coherence of the transient event is maintained instead of any processing performed in the signal processor, which would destroy the vertical coherence of a transient.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式