专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明申请

US20120271644A1 AUDIO SIGNAL ENCODER, AUDIO SIGNAL DECODER, METHOD FOR ENCODING OR DECODING AN AUDIO SIGNAL USING AN ALIASING-CANCELLATION 有权
标题翻译：音频信号编码器，音频信号解码器，使用消息取消来编码或解码音频信号的方法
公开(公告)号：US20120271644A1
公开(公告)日：2012-10-25
申请号：US13449949
申请日：2012-04-18
申请人： Bruno Bessette , Max Neuendorf , Ralf Geiger , Philippe Gournay , Roch Lefebvre , Bernhard Grill , Jeremie Lecomte , Stefan Bayer , Nikolaus Rettelbach , Lars Villemoes , Redwan Salami , Albertus C. Den Brinker
发明人： Bruno Bessette , Max Neuendorf , Ralf Geiger , Philippe Gournay , Roch Lefebvre , Bernhard Grill , Jeremie Lecomte , Stefan Bayer , Nikolaus Rettelbach , Lars Villemoes , Redwan Salami , Albertus C. Den Brinker
IPC分类号： G10L19/12
CPC分类号： G10L19/03 , G10L19/0212 , G10L19/20 , G10L2019/0008
摘要： An audio signal decoder includes a transform domain path configured to obtain a time-domain representation of a portion of an audio content on the basis of a first set of spectral coefficients, a representation of an aliasing-cancellation stimulus signal and a plurality of linear-prediction-domain parameters. The transform domain path applies a spectrum shaping to the first set of spectral coefficients to obtain a spectrally-shaped version thereof. The transform domain path obtains a time-domain representation of the audio content on the basis of the spectrally-shaped version of the first set of spectral coefficients. The transform domain path includes an aliasing-cancellation stimulus filter to filter the aliasing-cancellation stimulus signal in dependence on at least a subset of the linear-prediction-domain parameters. The transform domain path also includes a combiner configured to combine the time-domain representation of the audio content with an aliasing-cancellation synthesis signal to obtain an aliasing reduced time-domain signal.
摘要翻译：音频信号解码器包括变换域路径，被配置为基于第一组频谱系数获得音频内容的一部分的时域表示，混叠取消激励信号的表示和多个线性 - 预测域参数。变换域路径将频谱整形应用于第一组频谱系数，以获得其频谱形状的版本。变换域路径基于第一组频谱系数的频谱形式获得音频内容的时域表示。变换域路径包括混叠消除刺激滤波器，以根据线性预测域参数的至少一个子集来滤除混叠消除激励信号。变换域路径还包括组合器，其被配置为将音频内容的时域表示与混叠消除合成信号组合以获得混叠减小的时域信号。

42. 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。

43. 发明授权

US08706480B2 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：用于编码具有脉冲状部分和静止部分的音频信号的音频编码器，编码方法，解码器，解码方法和编码音频信号
公开(公告)号：US08706480B2
公开(公告)日：2014-04-22
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： G10L19/14
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。

44. 发明授权

US08484038B2 Audio signal encoder, audio signal decoder, method for encoding or decoding an audio signal using an aliasing-cancellation 有权
标题翻译：音频信号编码器，音频信号解码器，使用混叠取消对音频信号进行编码或解码的方法
公开(公告)号：US08484038B2
公开(公告)日：2013-07-09
申请号：US13449949
申请日：2012-04-18
申请人： Bruno Bessette , Max Neuendorf , Ralf Geiger , Philippe Gournay , Roch Lefebvre , Bernhard Grill , Jeremie Lecomte , Stefan Bayer , Nikolaus Rettelbach , Lars Villemoes , Redwan Salami , Albertus C. Den Brinker
发明人： Bruno Bessette , Max Neuendorf , Ralf Geiger , Philippe Gournay , Roch Lefebvre , Bernhard Grill , Jeremie Lecomte , Stefan Bayer , Nikolaus Rettelbach , Lars Villemoes , Redwan Salami , Albertus C. Den Brinker
IPC分类号： G10L21/00 , G10L19/00
CPC分类号： G10L19/03 , G10L19/0212 , G10L19/20 , G10L2019/0008
摘要： An audio signal decoder includes a transform domain path configured to obtain a time-domain representation of a portion of an audio content on the basis of a first set of spectral coefficients, a representation of an aliasing-cancellation stimulus signal and a plurality of linear-prediction-domain parameters. The transform domain path applies a spectrum shaping to the first set of spectral coefficients to obtain a spectrally-shaped version thereof. The transform domain path obtains a time-domain representation of the audio content on the basis of the spectrally-shaped version of the first set of spectral coefficients. The transform domain path includes an aliasing-cancellation stimulus filter to filter the aliasing-cancellation stimulus signal in dependence on at least a subset of the linear-prediction-domain parameters. The transform domain path also includes a combiner configured to combine the time-domain representation of the audio content with an aliasing-cancellation synthesis signal to obtain an aliasing reduced time-domain signal.
摘要翻译：音频信号解码器包括变换域路径，被配置为基于第一组频谱系数获得音频内容的一部分的时域表示，混叠取消激励信号的表示和多个线性 - 预测域参数。变换域路径将频谱整形应用于第一组频谱系数，以获得其频谱形状的版本。变换域路径基于第一组频谱系数的频谱形式获得音频内容的时域表示。变换域路径包括混叠消除刺激滤波器，以根据线性预测域参数的至少一个子集来滤除混叠消除激励信号。变换域路径还包括组合器，其被配置为将音频内容的时域表示与混叠消除合成信号组合以获得混叠减小的时域信号。

45. 发明授权

US07587311B2 Device and method for embedding binary payload in a carrier signal 有权
标题翻译：用于在载波信号中嵌入二进制有效载荷的装置和方法
公开(公告)号：US07587311B2
公开(公告)日：2009-09-08
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.
摘要翻译：为了将二进制有效载荷嵌入到例如音频信号的载波信号中，通过整数变换算法将载波信号的时间离散值的序列转换为频域以获得二进制频谱表示值。根据有效载荷确定和设置具有小于信号限制价的化合价的二进制光谱表示值的位。频谱表示值的信号限制价格小于该频谱表示值的前导比特的价格，使得在足够的距离处，可以实现心理声学透明的信息插入。因此，生成具有插入信息的修改的频谱表示，其最终使用整数反向变换算法转换回时域。为了提取有效载荷，具有插入信息的时间离散信号再次被转换为具有整数正则变换算法的频谱表示。此外，确定信号限价信息以识别不包含关于载波信号的信息的二进制频谱表示值的位，但是关于有效负载信号的信息来提取这些位。本发明的概念在其实现中是简单的，并且可以相对于要插入的信息的数据速率进行缩放。

46. 发明申请

US20070196022A1 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：US20070196022A1
公开(公告)日：2007-08-23
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
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。

47. 发明申请

US20060115171A1 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：US20060115171A1
公开(公告)日：2006-06-01
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： G06K9/36
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。

48. 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。

49. 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。

50. 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。

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