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41. 发明授权

US08195730B2 Apparatus and method for conversion into a transformed representation or for inverse conversion of the transformed representation 有权
标题翻译：用于转换为变换表示或用于逆变换变换表示的装置和方法
公开(公告)号：US08195730B2
公开(公告)日：2012-06-05
申请号：US11331551
申请日：2006-01-13
申请人： Ralf Geiger , Gerald Schuller , Thomas Sporer
发明人： Ralf Geiger , Gerald Schuller , Thomas Sporer
IPC分类号： G06F17/14
CPC分类号： H04N19/60 , G06F17/147 , G10L19/0017 , G10L19/0212
摘要： For converting first and second blocks of discrete values into a transformed representation, the first block is transformed according to a first transformation rule and then rounded. Then, the rounded transformed values are summed with the second block of original discrete values, to then process the summation result according to a second transformation rule. The output values of the transformation via the second transformation rule are again rounded and then subtracted from the original discrete values of the first block of discrete values to obtain a block of integer output values of the transformed representation. By this multi-dimensional lifting scheme, a lossless integer transformation is obtained, which can be reversed by applying the same transformation rule, but with different signs in summation and subtraction, respectively, so that an inverse integer transformation can also be obtained. Compared to a separation of a transformation in rotations, on the one hand, a significantly reduced computing complexity is achieved and, on the other hand, an accumulation of approximation errors is prevented.
摘要翻译：为了将离散值的第一和第二块转换为变换表示，根据第一变换规则对第一块进行变换，然后进行舍入。然后，舍入的变换值与原始离散值的第二块相加，然后根据第二变换规则处理求和结果。经由第二变换规则的变换的输出值再次被舍入，然后从离散值的第一块的原始离散值中减去，以获得变换表示的整数输出值的块。通过这种多维提升方案，获得了一个无损整数变换，可以通过应用相同的变换规则来反转，但是在求和和减法中分别具有不同的符号，从而也可以获得逆整数变换。与旋转变换的分离相比，一方面，实现了显着降低的计算复杂度，另一方面，防止了近似误差的累积。

42. 发明授权

US07917564B2 Device and method for processing a signal having a sequence of discrete values 有权
标题翻译：用于处理具有离散值序列的信号的装置和方法
公开(公告)号：US07917564B2
公开(公告)日：2011-03-29
申请号：US11388186
申请日：2006-03-23
申请人： Ralf Geiger , Gerald Schuller , Thomas Sporer
发明人： Ralf Geiger , Gerald Schuller , Thomas Sporer
IPC分类号： G06F17/14
CPC分类号： H04N19/60 , G10L19/0017 , G10L19/032
摘要： When processing a signal having a sequence of discrete values, wherein there is a first frequency range, in which the signal has a high energy, and wherein there is a second frequency range, in which the signal has a low energy, the sequence of discrete values is first manipulated to obtain a sequence of manipulated values, so that at least one of the manipulated values is non-integer. Then the sequence of manipulated values is rounded to obtain a sequence of manipulated values. The rounding is formed to effect a spectral shaping of a generated rounding error so that a spectrally shaped rounding error has a higher energy in the first frequency range than in the second frequency range. By spectrally shaping the rounding error so that the rounding error does not have any energy either in the storage areas where there is no signal energy, an especially efficient coding is obtained particularly in connection with a lossless coding context.
摘要翻译：当处理具有离散值序列的信号时，其中存在其中信号具有高能量的第一频率范围，并且其中存在信号具有低能量的第二频率范围，离散的序列首先操作值以获得操纵值的序列，使得至少一个被操纵的值是非整数的。然后对操纵值的序列进行四舍五入以获得一系列被操纵的值。形成四舍五入以实现产生的舍入误差的频谱整形，使得频谱整形的舍入误差在第一频率范围内具有比在第二频率范围内更高的能量。通过对舍入误差进行光谱整形，使得舍入误差在没有信号能量的存储区域中也不具有任何能量，特别是结合无损编码上下文获得特别有效的编码。

43. 发明授权

US07873227B2 Device and method for processing at least two input values 有权
标题翻译：用于处理至少两个输入值的设备和方法
公开(公告)号：US07873227B2
公开(公告)日：2011-01-18
申请号：US11386077
申请日：2006-03-20
申请人： Ralf Geiger , Gerald Schuller , Thomas Sporer
发明人： Ralf Geiger , Gerald Schuller , Thomas Sporer
IPC分类号： G06K9/36 , G06K9/46
CPC分类号： G10L19/0212 , G06F17/147 , H04N19/60
摘要： For the reduction of the rounding error, a first and a second non-integer input value are provided and combined, for example by addition, in non-integer state to obtain a non-integer result value which is rounded and added to a third input value. Thus, the rounding error may be reduced at an interface between two rotations divided into lifting steps or between a first rotation divided into lifting steps and a first lifting step of a subsequent multi-dimensional lifting sequence.
摘要翻译：为了减少舍入误差，例如以非整数状态提供并组合第一和第二非整数输入值并将其组合，以获得非整数结果值，其被舍入并加到第三输入端值。因此，在被分为提升步骤的两个旋转之间或分为提升步骤的第一旋转和随后的多维提升顺序的第一提升步骤之间的界面处可以减少舍入误差。

44. 发明授权

US07343287B2 Method and apparatus for scalable encoding and method and apparatus for scalable decoding 有权
标题翻译：用于可缩放编码的方法和装置以及用于可扩展解码的方法和装置
公开(公告)号：US07343287B2
公开(公告)日：2008-03-11
申请号：US10636149
申请日：2003-08-07
申请人： Ralf Geiger , Thomas Sporer , Karlheinz Brandenburg , Juergen Herre , Juergen Koller , Gerald Schuller
发明人： Ralf Geiger , Thomas Sporer , Karlheinz Brandenburg , Juergen Herre , Juergen Koller , Gerald Schuller
IPC分类号： G10L19/00
CPC分类号： G10L19/032 , G06F17/147 , G10L19/24
摘要： An apparatus for scalable encoding a spectrum of a signal including audio and/or video information, with the spectrum comprising binary spectral values, includes a means for generating a first sub-scaling layer and a second sub-scaling layer in addition to a means for forming the encoded signal, with the means for forming being implemented so as to include the first sub-scaling layer and the second sub-scaling layer into the encoded signal that the first and the second sub-scaling layer are separately decodable from each other. In contrast to a full-scaling layer, a sub-scaling layer includes only the bits of a certain order of a part of the binary spectral values in the band, so that, by additionally decoding a sub-scaling layer, a more finely controllable and a more finely scalable precision gain may be achieved.
摘要翻译：一种用于对包括音频和/或视频信息的信号的频谱进行可分级编码的装置，其中包括二进制频谱值的频谱包括用于生成第一子缩放层和第二子缩放层的装置，形成所述编码信号，所述用于形成的装置被实现为将所述第一子缩放层和所述第二子缩放层包括在所述编码信号中，所述第一和第二子缩放层可以彼此分开地解码。与完全缩放层相反，子缩放层仅包括频带中二分谱值的一部分的一定顺序的位，使得通过附加地解码子缩放层，更精细地控制并且可以实现更精细地扩展的精度增益。

45. 发明申请

US20060210180A1 Device and method for processing a signal having a sequence of discrete values 有权
标题翻译：用于处理具有离散值序列的信号的装置和方法
公开(公告)号：US20060210180A1
公开(公告)日：2006-09-21
申请号：US11388186
申请日：2006-03-23
申请人： Ralf Geiger , Gerald Schuller , Thomas Sporer
发明人： Ralf Geiger , Gerald Schuller , Thomas Sporer
IPC分类号： G06K9/36 , G06K9/46
CPC分类号： H04N19/60 , G10L19/0017 , G10L19/032
摘要： When processing a signal having a sequence of discrete values, wherein there is a first frequency range, in which the signal has a high energy, and wherein there is a second frequency range, in which the signal has a low energy, the sequence of discrete values is first manipulated to obtain a sequence of manipulated values, so that at least one of the manipulated values is non-integer. Then the sequence of manipulated values is rounded to obtain a sequence of manipulated values. The rounding is formed to effect a spectral shaping of a generated rounding error so that a spectrally shaped rounding error has a higher energy in the first frequency range than in the second frequency range. By spectrally shaping the rounding error so that the rounding error does not have any energy either in the storage areas where there is no signal energy, an especially efficient coding is obtained particularly in connection with a lossless coding context.
摘要翻译：当处理具有离散值序列的信号时，其中存在其中信号具有高能量的第一频率范围，并且其中存在信号具有低能量的第二频率范围，离散的序列首先操作值以获得操纵值的序列，使得至少一个被操纵的值是非整数的。然后对操纵值的序列进行四舍五入以获得一系列被操纵的值。形成四舍五入以实现产生的舍入误差的频谱整形，使得频谱整形的舍入误差在第一频率范围内具有比在第二频率范围内更高的能量。通过对舍入误差进行光谱整形，使得舍入误差在没有信号能量的存储区域中也不具有任何能量，特别是结合无损编码上下文获得特别有效的编码。

46. 发明申请

US20060095253A1 Device and method for embedding binary payload in a carrier signal 有权
公开(公告)号：US20060095253A1
公开(公告)日：2006-05-04
申请号：US11274836
申请日：2005-11-15
申请人： Gerald Schuller , Ralf Geiger , Juergen Koller
发明人： Gerald Schuller , Ralf Geiger , Juergen Koller
IPC分类号： G10L19/00
CPC分类号： H04N1/32192 , G06T1/0028 , G06T2201/0051 , G06T2201/0052 , G06T2201/0061 , G10L19/018 , G11B20/00891 , H04N1/32187 , H04N21/23892 , H04N21/8358
摘要： For embedding binary payload in a carrier signal, which, for example, is an audio signal, a sequence of time-discrete values of the carrier signal is converted to the frequency domain by means of an integer transform algorithm to obtain binary spectral representation values. Bits of the binary spectral representation values with a valency less than signal limit valency are determined and set according to the payload. The signal limit valency for a spectral representation value is less than the valency of the leading bit of this spectral representation value, so that, with adequate distance, a psychoacoustic transparent insertion of information is achieved. Thus a modified spectral representation with inserted information is generated which is finally converted back to the time domain using an integer back transform algorithm. For extracting the payload, the time-discrete signal with the inserted information is again converted to a spectral representation with the integer forward transform algorithm. Furthermore, signal limit valency information is determined to identify the bits of the binary spectral representation values containing no information regarding the carrier signal, but information regarding the payload signal, to extract these bits. The inventive concept is simple in its implementation and may be scaled with respect to the data rate of the information to be inserted.

47. 发明授权

US09015041B2 Time warp activation signal provider, audio signal encoder, method for providing a time warp activation signal, method for encoding an audio signal and computer programs 有权
标题翻译：时间扭曲激活信号提供器，音频信号编码器，用于提供时间扭曲激活信号的方法，用于编码音频信号的方法和计算机程序
公开(公告)号：US09015041B2
公开(公告)日：2015-04-21
申请号：US13004525
申请日：2011-01-11
申请人： Stefan Bayer , Sascha Disch , Ralf Geiger , Guillaume Fuchs , Max Neuendorf , Gerald Schuller , Bernd Edler
发明人： Stefan Bayer , Sascha Disch , Ralf Geiger , Guillaume Fuchs , Max Neuendorf , Gerald Schuller , Bernd Edler
IPC分类号： G10L19/12 , G10L21/00 , G10L19/00 , G10L21/04 , G10L19/002 , G10L19/028
CPC分类号： G10L21/04 , G10L19/002 , G10L19/0212 , G10L19/022 , G10L19/028 , G10L19/032 , G10L19/265 , G10L21/043 , G10L25/90
摘要： An audio encoder has a window function controller, a windower, a time warper with a final quality check functionality, a time/frequency converter, a TNS stage or a quantizer encoder, the window function controller, the time warper, the TNS stage or an additional noise filling analyzer are controlled by signal analysis results obtained by a time warp analyzer or a signal classifier. Furthermore, a decoder applies a noise filling operation using a manipulated noise filling estimate depending on a harmonic or speech characteristic of the audio signal.
摘要翻译：音频编码器具有窗口功能控制器，风扇，具有最终质量检查功能的时间整形器，时间/频率转换器，TNS阶段或量化器编码器，窗口功能控制器，时间整经器，TNS阶段或附加噪声填充分析仪由时间扭曲分析仪或信号分类器得到的信号分析结果进行控制。此外，解码器使用根据音频信号的谐波或语音特性的操纵噪声填充估计来应用噪声填充操作。

48. 发明申请

US20110173011A1 Audio Encoder and Decoder for Encoding and Decoding Frames of a Sampled Audio Signal 有权
标题翻译：音频编码器和解码器，用于对采样音频信号的帧进行编码和解码
公开(公告)号：US20110173011A1
公开(公告)日：2011-07-14
申请号：US13004475
申请日：2011-01-11
申请人： Ralf Geiger , Bernhard Grill , Bruno Bessette , Philippe Gournay , Guillaume Fuchs , Markus Multrus , Max Neuendorf , Gerald Schuller
发明人： Ralf Geiger , Bernhard Grill , Bruno Bessette , Philippe Gournay , Guillaume Fuchs , Markus Multrus , Max Neuendorf , Gerald Schuller
IPC分类号： G10L19/00
CPC分类号： G10L19/0212 , G10L19/04
摘要： An audio encoder adapted for encoding frames of a sampled audio signal to obtain encoded frames, wherein a frame includes a number of time domain audio samples. The audio encoder includes a predictive coding analysis stage for determining information on coefficients of a synthesis filter and a prediction domain frame based on a frame of audio samples. The audio encoder further includes a time-aliasing introducing transformer for transforming overlapping prediction domain frames to the frequency domain to obtain prediction domain frame spectra, wherein the time-aliasing introducing transformer is adapted for transforming the overlapping prediction domain frames in a critically-sampled way. Moreover, the audio encoder includes a redundancy reducing encoder for encoding the prediction domain frame spectra to obtain the encoded frames based on the coefficients and the encoded prediction domain frame spectra.
摘要翻译：一种音频编码器，适于编码采样的音频信号的帧以获得编码的帧，其中帧包括多个时域音频采样。音频编码器包括用于基于音频样本的帧来确定关于合成滤波器和预测域帧的系数的信息的预测编码分析阶段。音频编码器还包括时间混叠引入变压器，用于将重叠的预测域帧转换到频域以获得预测域帧频谱，其中时间混叠引入变压器适于以重要取样的方式变换重叠的预测域帧。此外，音频编码器包括冗余减少编码器，用于根据系数和编码的预测域帧频谱对预测域帧频谱进行编码以获得编码的帧。

49. 发明申请

US20110158415A1 Audio Signal Decoder, Audio Signal Encoder, Encoded Multi-Channel Audio Signal Representation, Methods and Computer Program 有权
标题翻译：音频信号解码器，音频信号编码器，编码多声道音频信号表示，方法和计算机程序
公开(公告)号：US20110158415A1
公开(公告)日：2011-06-30
申请号：US12935740
申请日：2009-07-01
申请人： Stefan Bayer , Sascha Disch , Ralf Geiger , Guillaume Fuchs , Max Neuendorf , Gerald Schuller , Bernd Edler
发明人： Stefan Bayer , Sascha Disch , Ralf Geiger , Guillaume Fuchs , Max Neuendorf , Gerald Schuller , Bernd Edler
IPC分类号： H04R5/00
CPC分类号： G10L21/04 , G10L19/0212 , G10L19/022 , G10L19/032 , G10L19/167
摘要： An audio signal decoder for providing a decoded multi-channel audio signal representation on the basis of an encoded multi-channel audio signal representation has a time warp decoder configured to selectively use individual audio channel specific time warp contours or a joint multi-channel time warp contour for a reconstruction of a plurality of audio channels represented by the encoded multi-channel audio signal representation. An audio signal encoder for providing an encoded representation of a multi-channel audio signal has an encoded audio representation provider configured to selectively provide an audio representation having a common time warp contour information, commonly associated with a plurality of audio channels of the multi-channel audio signal, or an encoded audio representation having individual time warp contour information, individually associated with the different audio channels of the plurality of audio channels, in dependence on an information describing a similarity or difference between time warp contours associated with the audio channels of the plurality of audio channels.
摘要翻译：用于基于编码的多声道音频信号表示提供解码的多声道音频信号表示的音频信号解码器具有时间扭曲解码器，其被配置为选择性地使用单独的音频通道特定时间扭曲轮廓或联合多通道时间扭曲用于重建由编码的多声道音频信号表示表示的多个音频通道的轮廓。用于提供多声道音频信号的编码表示的音频信号编码器具有编码音频表示提供器，其被配置为选择性地提供具有公共时间扭曲轮廓信息的音频表示，通常与多声道音频信号的多个音频通道相关联音频信号或具有单独与多个音频通道的不同音频通道相关联的具有各个时间扭曲轮廓信息的经编码的音频表示，该信息根据描述与音频通道的音频通道相关联的时间扭曲轮廓之间的相似性或差异的信息多个音频通道。

50. 发明申请

US20060147124A1 Perceptual coding of image signals using separated irrelevancy reduction and redundancy reduction 审中-公开
标题翻译：使用分离的无约束减少和冗余减少的图像信号的感知编码
公开(公告)号：US20060147124A1
公开(公告)日：2006-07-06
申请号：US11355296
申请日：2006-02-15
申请人： Bernd Edler , Gerald Schuller
发明人： Bernd Edler , Gerald Schuller
IPC分类号： G06K9/40
CPC分类号： G10L19/02
摘要： A perceptual coder is disclosed for encoding image signals, such as speech or music, with different spectral and temporal resolutions for redundancy reduction and irrelevancy reduction. The image signal is initially spectrally shaped using a prefilter. The prefilter output samples are thereafter quantized and coded to minimize the mean square error (MSE) across the spectrum. The disclosed perceptual image coder can use fixed quantizer step-sizes, since spectral shaping is performed by the pre-filter prior to quantization and coding. The disclosed pre-filter and post-filter support the appropriate frequency dependent temporal and spectral resolution for irrelevancy reduction. A filter structure based on a frequency-warping technique is used that allows filter design based on a non-linear frequency scale. The characteristics of the pre-filter may be adapted to the masked thresholds, using techniques known from speech coding, where linear-predictive coefficient (LPC) filter parameters are used to model the spectral envelope of the speech signal. Likewise, the filter coefficients may be efficiently transmitted to the decoder for use by the post-filter using well-established techniques from speech coding, such as an LSP (line spectral pairs) representation, temporal interpolation, or vector quantization.
摘要翻译：公开了一种感知编码器，用于对具有不同频谱和时间分辨率的图像信号（例如语音或音乐）进行编码，用于冗余减少和不依赖性降低。图像信号最初使用预滤器进行光谱成形。此后，对预滤波器输出采样进行量化和编码，以最小化整个频谱上的均方误差（MSE）。公开的感知图像编码器可以使用固定的量化器步长，因为在量化和编码之前通过预滤波器执行频谱整形。所公开的预滤波器和后置滤波器支持适当的频率依赖的时间和频谱分辨率用于无约束降低。使用基于频率扭曲技术的滤波器结构，其允许基于非线性频率标度的滤波器设计。使用从语音编码已知的技术，预滤波器的特性可以适应于屏蔽的阈值，其中使用线性预测系数（LPC）滤波器参数来建模语音信号的频谱包络。类似地，可以使用来自语音编码（例如，LSP（线谱对））表示，时间内插或向量量化的公认的技术，将滤波器系数有效地发送到解码器以供后置滤波器使用。

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