专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2013167908A 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：JP2013167908A
公开(公告)日：2013-08-29
申请号：JP2013096490
申请日：2013-05-01
申请人： Koninklijke Philips Nv , コーニンクレッカフィリップスエヌヴェ , Dolby International Ab , ドルビー・インターナショナル・アクチボラゲットDolby International Ab
发明人： VILLEMOES LARS F , EKSTRAND PER , PURNHAGEN HEIKO , SCHUIJERS ERIK G P , DE BONT FRANSISCUS M J
IPC分类号： G10L19/02 , G10L19/008 , G10L21/038
CPC分类号： G10L19/008 , G10L21/038
摘要： PROBLEM TO BE SOLVED: To provide advantageous audio encoding or decoding using spatial parameters.SOLUTION: The encoding comprises: further subband-filtering at least one of subband signals obtained by downsampling an audio signal including a first audio channel and a second audio channel, in a further filterbank to provide a plurality of sub-subband signals; deriving spatial parameters from the sub-subband signals and from 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.
摘要翻译：要解决的问题：使用空间参数提供有利的音频编码或解码。解码：编码包括：通过对包括第一音频信道和第二音频信道的音频信号进行下采样而获得的子带信号中的至少一个进行子带滤波，用于提供多个子子带信号的另一滤波器组; 从子子带信号和未被进一步子带滤波的下采样子带信号导出空间参数; 以及导出包括从第一多个下采样子带信号和第二多个下采样子带信号导出的导出子带信号的单声道音频信号。

2. 发明专利

JP2011128649A 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：JP2011128649A
公开(公告)日：2011-06-30
申请号：JP2011036288
申请日：2011-02-22
申请人： Dolby Internatl Ab , Koninkl Philips Electronics Nv , コーニンクレッカフィリップスエレクトロニクスエヌヴィ , ドルビーインターナショナルアクチボラゲットDolby International AB
发明人： VILLEMOES LARS F , EKSTRAND PER , PURNHAGEN HEIKO , SCHUIJERS ERIK G P , DE BONT FRANSISCUS M J
IPC分类号： G10L19/008 , G10L21/038
CPC分类号： G10L19/008 , G10L21/038
摘要： PROBLEM TO BE SOLVED: To provide advantageous audio encoding or decoding by using spatial parameters.
SOLUTION: Encoding a signal including a first audio channel and a second audio channel, comprises the following steps of: providing first and second plurality of subband signals in each of the first audio channel and the second audio channel in a complex modulated filter bank; 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 to provide a plurality of sub-subband signals; deriving the 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.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：通过使用空间参数来提供有利的音频编码或解码。解决方案：对包括第一音频通道和第二音频通道的信号进行编码，包括以下步骤：在复调制滤波器中的第一音频通道和第二音频通道的每一个中提供第一和第二多个子带信号银行; 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; 进一步子带滤波下采样子带信号中的至少一个以提供多个子子带信号; 从子子带信号和不进一步子带滤波的那些下采样子带信号导出空间参数; 以及导出包括从第一多个下采样子带信号和第二多个下采样子带信号导出的导出子带信号的单声道音频信号。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2011090316A 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：JP2011090316A
公开(公告)日：2011-05-06
申请号：JP2010254490
申请日：2010-11-15
申请人： Dolby Internatl Ab , ドルビーインターナショナルアクチボラゲットDolby International AB
发明人： EKSTRAND PER , VILLEMOES LARS , PURNHAGEN HEIKO
IPC分类号： G10L19/02 , H03M7/30
CPC分类号： G10L19/0208
摘要： PROBLEM TO BE SOLVED: To provide an efficient concept for outputting a signal enabling high quality operation, and an efficient concept for reducing a signal in a small distortion state. SOLUTION: The present invention relates to an apparatus 210 for processing a plurality of real-valued subband signals comprising a first real-valued subband signal and a second real-valued subband signal to provide at least a complex-valued subband signal with a multiband filter 204 for providing an intermediate real-valued subband signal and a calculator 215 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. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供用于输出实现高质量操作的信号的有效概念，以及用于减小小失真状态的信号的有效概念。解决方案：本发明涉及一种用于处理多个实值子带信号的装置210，包括第一实数子带信号和第二实值子带信号，以至少提供复值子带信号，用于提供中间实数子带信号的多频带滤波器204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215。版权所有（C）2011，JPO＆INPIT

4. 发明专利

JP2011090317A 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：JP2011090317A
公开(公告)日：2011-05-06
申请号：JP2010254491
申请日：2010-11-15
申请人： Dolby Internatl Ab , ドルビーインターナショナルアクチボラゲットDolby International AB
发明人： EKSTRAND PER , VILLEMOES LARS , PURNHAGEN HEIKO
IPC分类号： G10L19/02 , H03M7/30
CPC分类号： G10L19/0208
摘要： PROBLEM TO BE SOLVED: To provide an efficient concept for outputting a signal enabling high quality operation, and an efficient concept for reducing a signal in a small distortion state. SOLUTION: The present invention relates to an apparatus 210 for processing a plurality of real-valued subband signals comprising a first real-valued subband signal and a second real-valued subband signal to provide at least a complex-valued subband signal with a multiband filter 204 for providing an intermediate real-valued subband signal and a calculator 215 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. The plurality of real-valued subband signal is output by a real-valued Quadrature Mirror Filter (QMF) analysis bank. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供用于输出实现高质量操作的信号的有效概念，以及用于减小小失真状态的信号的有效概念。解决方案：本发明涉及一种用于处理多个实值子带信号的装置210，包括第一实数子带信号和第二实值子带信号，以至少提供复值子带信号，用于提供中间实数子带信号的多频带滤波器204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215。多个实值子带信号由实数值正交镜像滤波器（QMF）分析库输出。版权所有（C）2011，JPO＆INPIT

5. 发明专利

JP2011070213A 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：JP2011070213A
公开(公告)日：2011-04-07
申请号：JP2010254492
申请日：2010-11-15
申请人： Dolby Internatl Ab , ドルビーインターナショナルアクチボラゲットDolby International AB
发明人： EKSTRAND PER , VILLEMOES LARS , PURNHAGEN HEIKO
IPC分类号： G10L19/02 , H03M7/30
CPC分类号： G10L19/0208
摘要： PROBLEM TO BE SOLVED: To provide efficient concept for outputting a signal which enables high quality operation, and efficient concept for reducing a signal in a low distortion state. SOLUTION: An apparatus 210 for providing 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 includes: a multiband filter 204 for providing an intermediate real-valued subband signal; and a calculator 215 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. An index m is allocated to each signal of the real-valued subband signals according to a center frequency relating to the real-valued subband signal, and as the index m increases, the real-valued subband signal is arranged according to the center frequency relating to the signal. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供用于输出能够实现高质量操作的信号的有效概念，以及用于减少低失真状态的信号的有效概念。解决方案：用于使用第一实值子带信号和第二实值子带信号提供多个实值子带信号以提供至少复值子带信号的装置210包括：多频带滤波器204 用于提供中间实值子带信号; 以及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215。根据与实数子带信号相关的中心频率，将分数m分配给实数子带信号的每个信号，随着索引m的增加，实数子带信号根据中心频率相关到信号。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2011102981A 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：JP2011102981A
公开(公告)日：2011-05-26
申请号：JP2010254493
申请日：2010-11-15
申请人： Dolby Internatl Ab , ドルビーインターナショナルアクチボラゲットDolby International AB
发明人： EKSTRAND PER , VILLEMOES LARS , PURNHAGEN HEIKO
IPC分类号： G10L19/02 , H03H17/00 , H03H17/02 , H03M7/30
CPC分类号： G10L19/0208
摘要： PROBLEM TO BE SOLVED: To provide an efficient concept for providing a signal allowing a manipulation with high quality and an efficient concept for reducing a signal in a state of less distortions. SOLUTION: This invention relates to an apparatus 210 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. The apparatus comprises a multiband filter 204 for providing an intermediate real-valued subband signal, a calculator 215 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, and a delayer 203 for delaying the real-valued subband signal to supply the delayed real-valued subband signal to the calculator 215. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种有效的概念，用于提供允许以高质量的操作的信号和用于在较小失真的状态下减少信号的有效概念。解决方案：本发明涉及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一个复值子带信号的装置210。该装置包括用于提供中间实数子带信号的多频带滤波器204，用于通过组合来自多个实值子带信号的实数子带信号和中间子带信号来提供复值子带信号的计算器215 以及用于延迟实值子带信号以将延迟的实值子带信号提供给计算器215的延迟器203.版权所有：（C）2011，JPO＆INPIT

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