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. 发明授权

US08682652B2 Audio encoder, audio decoder and audio processor having a dynamically variable warping characteristic 有权
标题翻译：具有动态可变翘曲特性的音频编码器，音频解码器和音频处理器
公开(公告)号：US08682652B2
公开(公告)日：2014-03-25
申请号：US12305936
申请日：2007-05-16
申请人： Juergen Herre , Bernhard Grill , Markus Multrus , Stefan Bayer , Ulrich Kraemer , Jens Hirschfeld , Stefan Wabnik , Gerald Schuller
发明人： Juergen Herre , Bernhard Grill , Markus Multrus , Stefan Bayer , Ulrich Kraemer , Jens Hirschfeld , Stefan Wabnik , Gerald Schuller
IPC分类号： G10L19/00
CPC分类号： G10L19/22 , G10L19/022
摘要： An audio encoder, an audio decoder or an audio processor includes a filter for generating a filtered audio signal, the filter having a variable warping characteristic, the characteristic being controllable in response to a time-varying control signal, the control signal indicating a small or no warping characteristic or a comparatively high warping characteristic. Furthermore, a controller is connected for providing the time-varying control signal, which depends on the audio signal. The filtered audio signal can be introduced to an encoding processor having different encoding algorithms, one of which is a coding algorithm adapted to a specific signal pattern. Alternatively, the filter is a post-filter receiving a decoded audio signal.
摘要翻译：音频编码器，音频解码器或音频处理器包括用于产生经滤波的音频信号的滤波器，该滤波器具有可变的翘曲特性，该特性可响应于时变控制信号而被控制，该控制信号指示小的或无翘曲特性或较高翘曲特性。此外，连接控制器以提供取决于音频信号的时变控制信号。滤波后的音频信号可以被引入到具有不同编码算法的编码处理器中，其中之一是适用于特定信号模式的编码算法。或者，滤波器是接收经解码的音频信号的后置滤波器。

22. 发明申请

US20120177204A1 Audio Signal Decoder, Method for Decoding an Audio Signal and Computer Program Using Cascaded Audio Object Processing Stages 有权
标题翻译：音频信号解码器，用于解码音频信号的方法和使用级联音频对象处理阶段的计算机程序
公开(公告)号：US20120177204A1
公开(公告)日：2012-07-12
申请号：US13335047
申请日：2011-12-22
申请人： Oliver Hellmuth , Cornelia Falch , Juergen Herre , Johannes Hilpert , Leon Terentiv , Falko Ridderbusch
发明人： Oliver Hellmuth , Cornelia Falch , Juergen Herre , Johannes Hilpert , Leon Terentiv , Falko Ridderbusch
IPC分类号： H04R5/00
CPC分类号： G10L19/20 , G10H1/361 , G10H2210/301 , G10L19/008 , H04S7/30 , H04S2400/11 , H04S2420/07
摘要： An audio signal decoder for providing an upmix signal representation in dependence on a downmix signal representation and an object-related parametric information includes an object separator configured to decompose the downmix signal representation, to provide a first audio information describing a first set of one or more audio objects of a first audio object type and a second audio information describing a second set of one or more audio objects of a second audio object type, in dependence on the downmix signal representation and using at least a part of the object-related parametric information.
摘要翻译：音频信号解码器，用于根据降混信号表示和对象相关参数信息提供上混合信号表示，包括被配置成分解下混合信号表示的对象分离器，以提供描述第一组一个或多个第一音频对象类型的音频对象和描述第二音频对象类型的一个或多个音频对象的第二组的第二音频信息，其依赖于下混合信号表示并使用至少一部分与对象相关的参数信息。

23. 发明授权

US08155971B2 Audio decoding of multi-audio-object signal using upmixing 有权
标题翻译：使用上混音多声道对象信号的音频解码
公开(公告)号：US08155971B2
公开(公告)日：2012-04-10
申请号：US12253442
申请日：2008-10-17
申请人： Oliver Hellmuth , Johannes Hilpert , Leonid Terentiev , Cornelia Falch , Andreas Hoelzer , Juergen Herre
发明人： Oliver Hellmuth , Johannes Hilpert , Leonid Terentiev , Cornelia Falch , Andreas Hoelzer , Juergen Herre
IPC分类号： G10L19/00
CPC分类号： G10L19/04 , G10L19/008 , G10L19/20 , H04S3/002 , H04S2420/03 , H04S2420/07
摘要： A method for decoding a multi-audio-object signal having audio signals of first and second types encoded therein, the multi-audio-object signal having a downmix signal and side information having level information of the audio signals of the first and second types in a first predetermined time/frequency resolution, the method including computing a prediction coefficient matrix C based on the level information; and up-mixing the downmix signal based on the prediction coefficients to obtain a first and/or a second up-mix audio signal approximating the audio signals of the first and second types, respectively, wherein up-mixing yields the first and/or second up-mix signals S1 and S2 from the downmix signal d according to a computation representable by ( S 1 S 2 ) = D - 1 ⁢ { ( 1 C ) ⁢ d + H } , with “1” denoting—depending on the number of channels of d—a scalar, or an identity matrix, and D−1 being a matrix uniquely determined by a downmix prescription according to which the audio signals of the first and second types are downmixed into the downmix signal, and which is also included by the side information, and H being a term independent from d.
摘要翻译：一种对其中编码有第一和第二类型的音频信号的多音频对象信号进行解码的方法，具有降混信号的多音频对象信号和具有第一和第二类型的音频信号的电平信息的侧信息第一预定时间/频率分辨率，所述方法包括基于所述电平信息来计算预测系数矩阵C; 以及基于所述预测系数对所述下混合信号进行加混，以获得分别接近所述第一类型和第二类型的音频信号的第一和/或第二混合音频信号，其中上混合产生所述第一和/ 根据由（S 1 S 2）= D-1 {（1 C）d + H）表示的计算，来自下混合信号d的混合信号S1和S2，其中“1”表示取决于数字的d-a标量或单位矩阵的信道，D-1是由缩混处方唯一确定的矩阵，根据该处理，第一和第二类型的音频信号被混合到下混合信号中，并且还包括通过侧面信息，H是独立于d的术语。

24. 发明授权

US08139775B2 Concept for combining multiple parametrically coded audio sources 有权
标题翻译：用于组合多个参数编码音频源的概念
公开(公告)号：US08139775B2
公开(公告)日：2012-03-20
申请号：US11739544
申请日：2007-04-24
申请人： Johannes Hilpert , Juergen Herre , Karsten Linzmeier , Oliver Hellmuth , Thorsten Kastner
发明人： Johannes Hilpert , Juergen Herre , Karsten Linzmeier , Oliver Hellmuth , Thorsten Kastner
IPC分类号： H04R5/00
CPC分类号： H04N7/15 , G10L19/008
摘要： According to the present invention, multiple parametrically encoded audio signals can be efficiently combined using an audio signal generator, which generates an audio output signal by combining the down-mix channels and the associated parameters of the audio signals directly within the parameter domain, i.e. without reconstructing or decoding the individual input audio signals prior to the generation of the audio output signal. This is achieved by direct mixing of the associated down-mix channels of the individual input signals. It is one key feature of the present invention that the combination of the down-mix channels is achieved by simple, computationally inexpensive arithmetic operations.
摘要翻译：根据本发明，可以使用音频信号发生器有效地组合多个参数编码的音频信号，音频信号发生器通过直接在参数域内组合缩减混音信道和音频信号的相关参数来生成音频输出信号，即，在产生音频输出信号之前重建或解码各个输入音频信号。这通过直接混合各个输入信号的相关联的低通滤波通道实现。本发明的一个关键特征是通过简单的，计算上便宜的算术运算来实现降混信道的组合。

25. 发明申请

US20110200198A1 Low Bitrate Audio Encoding/Decoding Scheme with Common Preprocessing 有权
标题翻译：具有通用预处理的低比特率音频编码/解码方案
公开(公告)号：US20110200198A1
公开(公告)日：2011-08-18
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： G10L19/14 , 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。

26. 发明授权

US07873511B2 Audio encoder, audio decoder and audio processor having a dynamically variable warping characteristic 有权
标题翻译：具有动态可变翘曲特性的音频编码器，音频解码器和音频处理器
公开(公告)号：US07873511B2
公开(公告)日：2011-01-18
申请号：US11428297
申请日：2006-06-30
申请人： Juergen Herre , Bernhard Grill , Markus Multrus , Stefan Bayer , Ulrich Kraemer , Jens Hirschfeld , Stefan Wabnik , Gerald Schuller
发明人： Juergen Herre , Bernhard Grill , Markus Multrus , Stefan Bayer , Ulrich Kraemer , Jens Hirschfeld , Stefan Wabnik , Gerald Schuller
IPC分类号： G10L19/14 , G10L19/00 , G10L19/02
CPC分类号： G10L19/22
摘要： An audio encoder, an audio decoder or an audio processor includes a filter for generating a filtered audio signal, the filter having a variable warping characteristic, the characteristic being controllable in response to a time-varying control signal, the control signal indicating a small or no warping characteristic or a comparatively high warping characteristic. Furthermore, a controller is connected for providing the time-varying control signal, which depends on the audio signal. The filtered audio signal can be introduced to an encoding processor having different encoding algorithms, one of which is a coding algorithm adapted to a specific signal pattern. Alternatively, the filter is a post-filter receiving a decoded audio signal.
摘要翻译：音频编码器，音频解码器或音频处理器包括用于产生经滤波的音频信号的滤波器，该滤波器具有可变的翘曲特性，该特性可响应于时变控制信号而被控制，该控制信号指示小的或无翘曲特性或较高翘曲特性。此外，连接控制器以提供取决于音频信号的时变控制信号。滤波后的音频信号可以被引入到具有不同编码算法的编码处理器中，其中之一是适用于特定信号模式的编码算法。或者，滤波器是接收经解码的音频信号的后置滤波器。

27. 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。

28. 发明申请

US20100232619A1 DEVICE AND METHOD FOR GENERATING A MULTI-CHANNEL SIGNAL INCLUDING SPEECH SIGNAL PROCESSING 有权
标题翻译：用于产生包括语音信号处理的多信道信号的装置和方法
公开(公告)号：US20100232619A1
公开(公告)日：2010-09-16
申请号：US12681809
申请日：2008-10-01
申请人： Christian Uhle , Oliver Hellmuth , Juergen Herre , Harald Popp , Thorsten Kastner
发明人： Christian Uhle , Oliver Hellmuth , Juergen Herre , Harald Popp , Thorsten Kastner
IPC分类号： H04B3/00
CPC分类号： H04S5/005 , G10L19/008 , G10L21/0364 , G10L25/78
摘要： In order to generate a multi-channel signal having a number of output channels greater than a number of input channels, a mixer is used for upmixing the input signal to form at least a direct channel signal and at least an ambience channel signal. A speech detector is provided for detecting a section of the input signal, the direct channel signal or the ambience channel signal in which speech portions occur. Based on this detection, a signal modifier modifies the input signal or the ambience channel signal in order to attenuate speech portions in the ambience channel signal, whereas such speech portions in the direct channel signal are attenuated to a lesser extent or not at all. A loudspeaker signal outputter then maps the direct channel signals and the ambience channel signals to loudspeaker signals which are associated to a defined reproduction scheme, such as, for example, a 5.1 scheme.
摘要翻译：为了产生具有大于多个输入通道的输出通道数量的多通道信号，混频器用于将输入信号上混合以形成至少直接信道信号和至少一个环境信道信号。提供语音检测器，用于检测语音部分发生的输入信号，直接信道信号或环境信道信号的一部分。基于该检测，信号修改器修改输入信号或环境信道信号，以便衰减环境信道信号中的语音部分，而直接信道信号中的这种语音部分被衰减到较小程度，或根本不被衰减。然后，扬声器信号输出器将直接信道信号和环境信道信号映射到与所定义的再现方案（例如5.1方案）相关联的扬声器信号。

29. 发明授权

US07676336B2 Watermark embedding 有权
标题翻译：水印嵌入
公开(公告)号：US07676336B2
公开(公告)日：2010-03-09
申请号：US11554492
申请日：2006-10-30
申请人： Juergen Herre , Ralph Kulessa , Sascha Disch , Karsten Linzmeier , Christian Neubauer , Frank Siebenhaar
发明人： Juergen Herre , Ralph Kulessa , Sascha Disch , Karsten Linzmeier , Christian Neubauer , Frank Siebenhaar
IPC分类号： G01R23/16 , G06F17/14
CPC分类号： H04H20/31
摘要： According to an inventive scheme for introducing a watermark into an information signal, the information signal is at first transferred from a time representation to a spectral/modulation spectral representation). The information signal is then manipulated in the spectral/modulation spectral representation in dependence on the watermark to be introduced to obtain a modified spectral/modulation spectral representation, and subsequently an information signal provided with a watermark is formed based on the modified spectral/modulation spectral representation. An advantage is that, due to the fact that the watermark is embedded and/or derived in the spectral/modulation spectral representation or range, traditional correlation attacks as are used in watermark methods based on a spread-band modulation cannot succeed easily.
摘要翻译：根据用于将水印引入信息信号的发明方案，信息信号首先从时间表示传输到频谱/调制频谱表示）。然后根据要引入的水印在频谱/调制频谱表示中操作信息信号以获得修改的频谱/调制频谱表示，随后基于修改的频谱/调制频谱形成提供有水印的信息信号表示。优点在于，由于在频谱/调制频谱表示或范围内嵌入和/或导出水印的事实，所以在基于扩频调制的水印方法中使用的传统的相关攻击不能容易地成功。

30. 发明申请

US20090326959A1 GENERATION OF DECORRELATED SIGNALS 有权
标题翻译：装饰信号的生成
公开(公告)号：US20090326959A1
公开(公告)日：2009-12-31
申请号：US12440940
申请日：2008-04-14
申请人： Juergen Herre , Karsten Linzmeier , Harald Popp , Jan Plogsties , Harald Mundt , Sascha Disch
发明人： Juergen Herre , Karsten Linzmeier , Harald Popp , Jan Plogsties , Harald Mundt , Sascha Disch
IPC分类号： G10L19/00 , H04B1/00
CPC分类号： H04S5/00 , H04S1/002 , H04S2420/03 , H04S2420/05
摘要： In a case of transient audio input signals, in a multi-channel audio reconstruction, uncorrelated output signals are generated from an audio input signal in that the audio input signal is mixed with a representation of the audio input signal delayed by a delay time such that, in a first time interval, a first output signal corresponds to the audio input signal, and a second output signal corresponds to the delayed representation of the audio input signal, wherein, in a second time interval, the first output signal corresponds to the delayed representation of the audio input signal, and the second output signal corresponds to the audio input signal.
摘要翻译：在瞬态音频输入信号的情况下，在多声道音频重建中，从音频输入信号产生不相关的输出信号，因为音频输入信号与延迟了延迟时间的音频输入信号的表示混合，使得在第一时间间隔中，第一输出信号对应于音频输入信号，第二输出信号对应于音频输入信号的延迟表示，其中，在第二时间间隔中，第一输出信号对应于延迟的音频输入信号的表示，第二输出信号对应于音频输入信号。

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