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1. 发明授权

US07917561B2 Partially complex modulated filter bank 有权
标题翻译：部分复杂调制滤波器组
公开(公告)号：US07917561B2
公开(公告)日：2011-03-29
申请号：US11463263
申请日：2006-08-08
申请人： Per Ekstrand , Lars Villemoes , Heiko Purnhagen
发明人： Per Ekstrand , Lars Villemoes , Heiko Purnhagen
IPC分类号： G06F17/10
CPC分类号： G10L19/0208
摘要： An apparatus for processing a plurality of real-valued subband signals using a first real-valued subband signal and a second real-valued subband signal to provide at least a complex-valued subband signal comprises a multiband filter for providing an intermediate real-valued subband signal and a calculator for providing the complex-valued subband signal by combining a real-valued subband signal from the plurality of real-valued subband signals and the intermediate subband signal.
摘要翻译：一种用于使用第一实值子带信号和第二实值子带信号来处理多个实值子带信号以提供至少复值子带信号的装置包括多频带滤波器，用于提供中间实值子带信号和用于通过组合来自多个实值子带信号和中间子带信号的实值子带信号来提供复值子带信号的计算器。

2. 发明申请

US20070067162A1 Audio signal encoding or decoding 有权
标题翻译：音频信号编码或解码
公开(公告)号：US20070067162A1
公开(公告)日：2007-03-22
申请号：US10577106
申请日：2004-10-28
申请人： Lars Villemoes , Per Ekstrand , Heiko Purnhagen , Erik Schuijers , Fransiscus de Bont
发明人： Lars Villemoes , Per Ekstrand , Heiko Purnhagen , Erik Schuijers , Fransiscus de Bont
IPC分类号： G10L11/04
CPC分类号： G10L19/008 , G10L21/038
摘要： Encoding an audio signal is provided wherein the audio signal includes a first audio channel and a second audio channel, the encoding comprising subband filtering each of the first audio channel and the second audio channel in a complex modulated filterbank to provide a first plurality of subband signals for the first audio channel and a second plurality of subband signals for the second audio channel, downsampling each of the subband signals to provide a first plurality of downsampled subband signals and a second plurality of downsampled subband signals, further subband filtering at least one of the downsampled subband signals in a further filterbank in order to provide a plurality of sub-subband signals, deriving spatial parameters from the sub-subband signals and from those downsampled subband signals that are not further subband filtered, and deriving a single channel audio signal comprising derived subband signals derived from the first plurality of downsampled subband signals and the second plurality of downsampled subband signals. Further, decoding is provided wherein an encoded audio signal comprising an encoded single channel audio signal and a set of spatial parameters is decoded by decoding the encoded single channel audio channel to obtain a plurality of downsampled subband signals, further subband filtering at least one of the downsampled subband signals in a further filterbank in order to provide a plurality of sub-subband signals, and deriving two audio channels from the spatial parameters, the sub-subband signals and those downsampled subband signals that are not further subband filtered.
摘要翻译：提供对音频信号进行编码，其中音频信号包括第一音频通道和第二音频通道，该编码包括在复调制滤波器组中对第一音频通道和第二音频通道中的每一个进行子带滤波，以提供第一多个子带信号对于第一音频通道和用于第二音频通道的第二多个子带信号，对每个子带信号进行下采样以提供第一多个下采样子带信号和第二多个下采样子带信号，进一步子带滤波至少一个在另一个滤波器组中进行下采样的子带信号，以便提供多个子子带信号，从子子带信号和未进一步子带滤波的那些下采样子带信号导出空间参数，以及导出包括导出的从第一多个下采样子带信号导出的子带信号和第二多个下采样子带信号。此外，提供了解码，其中包括编码的单声道音频信号和一组空间参数的编码音频信号通过对编码的单声道音频声道进行解码以获得多个下采样的子带信号而被解码，进一步的子带滤波至少一个在另一滤波器组中进行下采样的子带信号，以便提供多个子子带信号，以及从空间参数，子子带信号和未进一步子带滤波的那些下采样子带信号导出两个音频信道。

3. 发明授权

US08443026B2 Partially complex modulated filter bank 有权
标题翻译：部分复杂调制滤波器组
公开(公告)号：US08443026B2
公开(公告)日：2013-05-14
申请号：US12687801
申请日：2010-01-14
申请人： Per Ekstrand , Lars Villemoes , Heiko Purnhagen
发明人： Per Ekstrand , Lars Villemoes , Heiko Purnhagen
IPC分类号： G06F17/10
CPC分类号： G10L19/008 , G10L19/0208
摘要： An apparatus for processing a plurality of real-valued subband signals using a first real-valued subband signal and a second real-valued subband signal to provide at least a complex-valued subband signal comprises a multiband filter for providing an intermediate real-valued subband signal and a calculator for providing the complex-valued subband signal by combining a real-valued subband signal from the plurality of real-valued subband signals and the intermediate subband signal.
摘要翻译：一种用于使用第一实值子带信号和第二实值子带信号来处理多个实值子带信号以提供至少复值子带信号的装置包括多频带滤波器，用于提供中间实值子带信号和用于通过组合来自多个实值子带信号和中间子带信号的实值子带信号来提供复值子带信号的计算器。

4. 发明授权

US08285771B2 Partially complex modulated filter bank 有权
公开(公告)号：US08285771B2
公开(公告)日：2012-10-09
申请号：US12716777
申请日：2010-03-03
申请人： Per Ekstrand , Lars Villemoes , Heiko Purnhagen
发明人： Per Ekstrand , Lars Villemoes , Heiko Purnhagen
IPC分类号： G06F17/10
CPC分类号： G10L19/008 , G10L19/0208
摘要： An apparatus for processing a plurality of real-valued subband signals using a first real-valued subband signal and a second real-valued subband signal to provide at least a complex-valued subband signal comprises a multiband filter for providing an intermediate real-valued subband signal and a calculator for providing the complex-valued subband signal by combining a real-valued subband signal from the plurality of real-valued subband signals and the intermediate subband signal.

5. 发明授权

US08180818B2 Partially complex modulated filter bank 有权
标题翻译：部分复杂调制滤波器组
公开(公告)号：US08180818B2
公开(公告)日：2012-05-15
申请号：US12716739
申请日：2010-03-03
申请人： Per Ekstrand , Lars Villemoes , Heiko Purnhagen
发明人： Per Ekstrand , Lars Villemoes , Heiko Purnhagen
IPC分类号： G06F17/10
CPC分类号： G10L19/0208
摘要： An apparatus for processing a plurality of real-valued subband signals using a first real-valued subband signal and a second real-valued subband signal to provide at least a complex-valued subband signal comprises a multiband filter for providing an intermediate real-valued subband signal and a calculator for providing the complex-valued subband signal by combining a real-valued subband signal from the plurality of real-valued subband signals and the intermediate subband signal.
摘要翻译：一种用于使用第一实值子带信号和第二实值子带信号来处理多个实值子带信号以提供至少复值子带信号的装置包括多频带滤波器，用于提供中间实值子带信号和用于通过组合来自多个实值子带信号和中间子带信号的实值子带信号来提供复值子带信号的计算器。

6. 发明申请

US20100228555A1 Partially Complex Modulated Filter Bank 有权
标题翻译：部分复杂调制滤波器组
公开(公告)号：US20100228555A1
公开(公告)日：2010-09-09
申请号：US12716760
申请日：2010-03-03
申请人： Per Ekstrand , Lars Villemoes , Heiko Purnhagen
发明人： Per Ekstrand , Lars Villemoes , Heiko Purnhagen
IPC分类号： G10L19/02
CPC分类号： G10L19/0208
摘要： An apparatus for processing a plurality of real-valued subband signals using a first real-valued subband signal and a second real-valued subband signal to provide at least a complex-valued subband signal comprises a multiband filter for providing an intermediate real-valued subband signal and a calculator for providing the complex-valued subband signal by combining a real-valued subband signal from the plurality of real-valued subband signals and the intermediate subband signal.
摘要翻译：一种用于使用第一实值子带信号和第二实值子带信号来处理多个实值子带信号以提供至少复值子带信号的装置包括多频带滤波器，用于提供中间实值子带信号和用于通过组合来自多个实值子带信号和中间子带信号的实值子带信号来提供复值子带信号的计算器。

7. 发明申请

US20110106541A1 Partially Complex Modulated Filter Bank 有权
标题翻译：部分复杂调制滤波器组
公开(公告)号：US20110106541A1
公开(公告)日：2011-05-05
申请号：US12716739
申请日：2010-03-03
申请人： Per Ekstrand , Lars Villemoes , Heiko Purnhagen
发明人： Per Ekstrand , Lars Villemoes , Heiko Purnhagen
IPC分类号： G10L19/00
CPC分类号： G10L19/0208
摘要： An apparatus for processing a plurality of real-valued subband signals using a first real-valued subband signal and a second real-valued subband signal to provide at least a complex-valued subband signal comprises a multiband filter for providing an intermediate real-valued subband signal and a calculator for providing the complex-valued subband signal by combining a real-valued subband signal from the plurality of real-valued subband signals and the intermediate subband signal.
摘要翻译：一种用于使用第一实值子带信号和第二实值子带信号来处理多个实值子带信号以提供至少复值子带信号的装置包括多频带滤波器，用于提供中间实值子带信号和用于通过组合来自多个实值子带信号和中间子带信号的实值子带信号来提供复值子带信号的计算器。

8. 发明申请

US20100169104A1 Partially Complex Modulated Filter Bank 有权
公开(公告)号：US20100169104A1
公开(公告)日：2010-07-01
申请号：US12716777
申请日：2010-03-03
申请人： Per Ekstrand , Lars Villemoes , Heiko Purnhagen
发明人： Per Ekstrand , Lars Villemoes , Heiko Purnhagen
IPC分类号： G06F17/00
CPC分类号： G10L19/008 , G10L19/0208
摘要： An apparatus for processing a plurality of real-valued subband signals using a first real-valued subband signal and a second real-valued subband signal to provide at least a complex-valued subband signal comprises a multiband filter for providing an intermediate real-valued subband signal and a calculator for providing the complex-valued subband signal by combining a real-valued subband signal from the plurality of real-valued subband signals and the intermediate subband signal.

9. 发明授权

US08180819B2 Partially complex modulated filter bank 有权
公开(公告)号：US08180819B2
公开(公告)日：2012-05-15
申请号：US12716760
申请日：2010-03-03
申请人： Per Ekstrand , Lars Villemoes , Heiko Purnhagen
发明人： Per Ekstrand , Lars Villemoes , Heiko Purnhagen
IPC分类号： G06F17/10
CPC分类号： G10L19/0208
摘要： An apparatus for processing a plurality of real-valued subband signals using a first real-valued subband signal and a second real-valued subband signal to provide at least a complex-valued subband signal comprises a multiband filter for providing an intermediate real-valued subband signal and a calculator for providing the complex-valued subband signal by combining a real-valued subband signal from the plurality of real-valued subband signals and the intermediate subband signal.

10. 发明申请

US20100179814A1 PARTIALLY COMPLEX MODULATED FILTER BANK 有权
标题翻译：部分复杂调制滤波器
公开(公告)号：US20100179814A1
公开(公告)日：2010-07-15
申请号：US12687801
申请日：2010-01-14
申请人： Per Ekstrand , Lars Villemoes , Heiko Purnhagen
发明人： Per Ekstrand , Lars Villemoes , Heiko Purnhagen
IPC分类号： G10L19/00
CPC分类号： G10L19/008 , G10L19/0208
摘要： An apparatus for processing a plurality of real-valued subband signals using a first real-valued subband signal and a second real-valued subband signal to provide at least a complex-valued subband signal comprises a multiband filter for providing an intermediate real-valued subband signal and a calculator for providing the complex-valued subband signal by combining a real-valued subband signal from the plurality of real-valued subband signals and the intermediate subband signal.
摘要翻译：一种用于使用第一实值子带信号和第二实值子带信号来处理多个实值子带信号以提供至少复值子带信号的装置包括多频带滤波器，用于提供中间实值子带信号和用于通过组合来自多个实值子带信号和中间子带信号的实值子带信号来提供复值子带信号的计算器。

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