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1. 发明申请

WO2005098821A2 MULTI-CHANNEL ENCODER 审中-公开
标题翻译：多通道编码器
公开(公告)号：WO2005098821A2
公开(公告)日：2005-10-20
申请号：PCT/IB2005/051037
申请日：2005-03-25
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , BREEBAART, Dirk, J. , SCHUIJERS, Erik, G., P. , HOTHO, Gerard, H. , VAN LOON, Machiel, W.
发明人： BREEBAART, Dirk, J. , SCHUIJERS, Erik, G., P. , HOTHO, Gerard, H. , VAN LOON, Machiel, W.
IPC分类号： G10L19/00
CPC分类号： G10L19/008
摘要： There is described a multi-channel encoder (10; 600) for processing input signals conveyed in N input channels to generate corresponding output signals conveyed in M output channels together with complementary parametric data; M and N are integers wherein N>M. The encoder (10; 600) includes a down-mixer for down-mixing the input signals to generate the corresponding output signals, the encoder also comprising an analyser for processing the input signals to generate the parameter data, said parametric data describing mutual differences between the N channels of input signal to allow for regenerating during decoding one or more of the N channels of input signals from the M channels of output signal. Such an encoder (10; 600) is capable of providing highly efficient data encoding and also of being backwards compatibility with relatively simpler decoders having fewer than N decoding output channels. The invention also concerns decoders (800) compatible with such a multi-channel encoder (10; 600).
摘要翻译：描述了用于处理在N个输入通道中传送的输入信号的多通道编码器（10; 600），以产生在M个输出通道中传送的相应输出信号以及互补参数数据; M和N是其中N> M的整数。编码器（10; 600）包括下混合器，用于对输入信号进行下混频以产生对应的输出信号，编码器还包括用于处理输入信号以生成参数数据的分析器，所述参数数据描述了输入信号的N个通道，用于在解码来自M个输出信号的N个通道的N个通道的输入信号中进行再生。这样的编码器（10; 600）能够提供高效的数据编码，并且还具有与具有少于N个解码输出通道的相对简单的解码器的向后兼容性。本发明还涉及与这种多通道编码器（10; 600）兼容的解码器（800）。

2. 发明申请

WO2005098826A1 METHOD, DEVICE, ENCODER APPARATUS, DECODER APPARATUS AND AUDIO SYSTEM 审中-公开
标题翻译：方法，设备，编码器装置，解码器装置和音频系统
公开(公告)号：WO2005098826A1
公开(公告)日：2005-10-20
申请号：PCT/IB2005/051065
申请日：2005-03-30
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , VAN LOON, Machiel, W. , HOTHO, Gerard, H. , BREEBAART, Dirk, J.
发明人： VAN LOON, Machiel, W. , HOTHO, Gerard, H. , BREEBAART, Dirk, J.
IPC分类号： G10L19/02
CPC分类号： H04S3/008 , G10L19/008 , H04S3/02 , H04S2420/03
摘要： Method for processing a stereo signal comprising: Encoding à N- channel audio signal in a stereo signal (Lo, Ro) and spatial parameters (wl, wr), processing the stereo signal using the spatial parameters for generating a processed stereo signal (low, Row). The matrix of the processed stereo signal can be discribed as the matrix of the stereo signal, multiplied by a filter matrix (H) which element are filter functions (H1, H2, H3, H4) operated with spatial parameters (wl, wr) and a constant (a). The filter functions are time invariant and selected so that the matrix is invertible.
摘要翻译：用于处理立体声信号的方法，包括：在立体声信号（Lo，Ro）和空间参数（wl，wr）中编码N沟道音频信号，使用空间参数处理立体声信号，用于产生经处理的立体声信号（低，行）。经处理的立体声信号的矩阵可以被描述为立体声信号的矩阵，乘以滤波器矩阵（H），该滤波器矩阵（H）是使用空间参数（w1，wr）操作的滤波器函数（H1，H2，H3，H4）常数（a）。滤波器函数是时间不变的并被选择，使得矩阵是可逆的。

3. 发明申请

WO2006027717A1 AUDIO SIGNAL ENHANCEMENT 审中-公开
标题翻译：音频信号增强
公开(公告)号：WO2006027717A1
公开(公告)日：2006-03-16
申请号：PCT/IB2005/052829
申请日：2005-08-30
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , VAN LOON, Machiel, W. , BREEBAART, Dirk, J.
发明人： VAN LOON, Machiel, W. , BREEBAART, Dirk, J.
IPC分类号： H04S1/00
CPC分类号： G10L19/26 , G10L19/008 , G10L21/00 , H04S1/002 , H04S2420/03
摘要： A device (10) for enhancing a multi-channel (e.g. stereo) audio signal has a parameter adjustment unit (13) for adjusting an original parameter (α, ILD, ICC) which represents an original inter-channel property of the audio signal. The device further comprises a processing unit (11) for processing the audio signal so as to produce an enhanced audio signal having the adjusted parameter (α', ILD', ICC'). The device allows stereo widening or other multi-channel signal enhancements without introducing artifacts.
摘要翻译：用于增强多声道（例如立体声）音频信号的设备（10）具有用于调整表示音频信号的原始信道间特性的原始参数（a，ILD，ICC）的参数调整单元（13）。该装置还包括处理单元（11），用于处理该音频信号以产生具有调整参数（a'，ILD'，ICC'）的增强音频信号。该器件允许立体声加宽或其他多通道信号增强而不引入伪像。

4. 发明申请

WO2005098821A3 MULTI-CHANNEL ENCODER 审中-公开
标题翻译：多通道编码器
公开(公告)号：WO2005098821A3
公开(公告)日：2006-03-16
申请号：PCT/IB2005051037
申请日：2005-03-25
申请人： KONINKL PHILIPS ELECTRONICS NV , BREEBAART DIRK J , SCHUIJERS ERIK G P , HOTHO GERARD H , VAN LOON MACHIEL W
发明人： BREEBAART DIRK J , SCHUIJERS ERIK G P , HOTHO GERARD H , VAN LOON MACHIEL W
IPC分类号： G10L19/008 , G10L19/00
CPC分类号： G10L19/008
摘要： There is described a multi-channel encoder (10) for processing input signals (300, 310, 320, 330, 340) conveyed in N input channels to generate corresponding output signals (480, 490) conveyed in M output channels together with complementary parametric data (370, 430, 450); M and N are integers wherein N>M. The encoder (10) includes a down-mixer for down-mixing the input signals (30, 310, 320, 330, 340) to generate the corresponding output signals (480, 490), the encoder also comprising an analyser for processing the input signals (300, 310, 320, 330, 340) to generate the parameter data (370, 430, 450), said parametric data describing mutual differences between the N channels of input signal to allow for regenerating during decoding one or more of the N channels of input signals from the M channels of output signal. Such an encoder (10) is capable of providing highly efficient data encoding and also of being backwards compatibility with relatively simpler decoders having fewer than N decoding output channels. The invention also concerns decoders compatible with such a multi-channel.
摘要翻译：描述了一种用于处理在N个输入通道中传送的输入信号（300,310,320,330,340）的多通道编码器（10），以产生在M个输出通道中传送的相应输出信号（480,490）以及互补参数数据（370,430,450）; M和N是其中N> M的整数。编码器（10）包括用于对输入信号（30,310,320,330,340）进行下混合以产生相应的输出信号（480,490）的下混合器，编码器还包括用于处理输入的分析器信号（300,310,320,330,340）以产生所述参数数据（370,430,450），所述参数数据描述N个通道的输入信号之间的相互差异，以允许在解码中的一个或多个N 来自M个通道的输入信号的通道信号。这样的编码器（10）能够提供高效的数据编码，并且还具有与具有少于N个解码输出通道的相对更简单的解码器的向后兼容性。本发明还涉及与这种多通道兼容的解码器。

5. 发明申请

WO2006008683A1 METHOD, DEVICE, ENCODER APPARATUS, DECODER APPARATUS AND AUDIO SYSTEM 审中-公开
标题翻译：方法，设备，编码器装置，解码器装置和音频系统
公开(公告)号：WO2006008683A1
公开(公告)日：2006-01-26
申请号：PCT/IB2005/052254
申请日：2005-07-07
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , CODING TECHNOLOGIES AB , VAN LOON, Machiel, W. , BREEBAART, Dirk, J. , HOTHO, Gerard, H. , SCHUIJERS, Erik, G., P. , PURNHAGEN, Heiko , RÖDÉN, Karl, J.
发明人： VAN LOON, Machiel, W. , BREEBAART, Dirk, J. , HOTHO, Gerard, H. , SCHUIJERS, Erik, G., P. , PURNHAGEN, Heiko , RÖDÉN, Karl, J.
IPC分类号： H04S3/02
CPC分类号： H04S3/02 , G10L19/008 , H04S1/007 , H04S2400/03 , H04S2420/03
摘要： A method and a device are described for processing a stereo signal obtained from an encoder, which encodes an N-channel audio signal into spatial parameters (P) and a stereo down-mix comprising first and second stereo signals (L o , R 0 ). A first signal and a third signal are added in order to obtain a first output signal (L ow ), wherein the first signal (L 0wL ) comprises the first stereo signal (L o ) modified by a first complex function (g 1 ), and the third signal (L 0wR ) comprises the second stereo signal (R 0 ) modified by a third complex function (g 3 ). A second signal and a fourth signal are added to obtain a second output signal (R 0w ). The fourth signal (R 0wR ) comprises the second stereo signal (R 0 ) modified by a fourth complex function (g 4 ), and the second signal (R 0wL ) comprises the first stereo signal (L 0 ) modified by a second complex function (g 2 ). The complex functions (g 1 ,g 2 ,g 3 ,g 4 ) are functions of the spatial parameters (P) and are chosen to be such that an energy value of the difference (L 0WL -R 0wL ) between the first signal and the second signal is larger than or equal to the energy value of the sum (L owL +R 0wL ) of the first and the second signal, and the energy value of the difference (R 0wR -L 0wR ) between the fourth signal and the third signal is larger than or equal to the energy value of the sum (R 0wR +L 0wR ) of the fourth signal and the third signal.
摘要翻译：描述了一种用于处理从编码器获得的立体声信号的方法和装置，其将N声道音频信号编码为空间参数（P）和包括第一和第二立体声信号（L

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