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1.再颁专利Coding techniques using estimated spectral magnitude and phase derived from MDCT coefficients 有权使用来自MDCT系数的估计光谱幅度和相位的编码技术公开(公告)号：USRE44126E1
公开(公告)日：2013-04-02
申请号：US13297256
申请日：2011-11-15
IPC分类号： G10L21/00
CPC分类号： G06F17/147 , G10L19/0212
摘要： Estimates of spectral magnitude and phase are obtained by an estimation process using spectral information from analysis filter banks such as the Modified Discrete Cosine Transform. The estimation process may be implemented by convolution-like operations with impulse responses. Portions of the impulse responses may be selected for use in the convolution-like operations to trade off between computational complexity and estimation accuracy. Mathematical derivations of analytical expressions for filter structures and impulse responses are disclosed.
摘要翻译： 通过使用来自分析滤波器组的光谱信息的估计处理（诸如修改的离散余弦变换）来获得频谱幅度和相位的估计。 估计过程可以通过具有脉冲响应的卷积状操作来实现。 可以选择脉冲响应的一部分用于卷积状操作以在计算复杂度和估计精度之间进行折衷。 公开了滤波器结构和脉冲响应的解析表达式的数学推导。
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2.再颁专利Coding techniques using estimated spectral magnitude and phase derived from MDCT coefficients 有权使用来自MDCT系数的估计光谱幅度和相位的编码技术公开(公告)号：USRE42935E1
公开(公告)日：2011-11-15
申请号：US11963680
申请日：2007-12-21
IPC分类号： G10L21/00
CPC分类号： G06F17/147 , G10L19/0212
摘要： Estimates of spectral magnitude and phase are obtained by an estimation process using spectral information from analysis filter banks such as the Modified Discrete Cosine Transform. The estimation process may be implemented by convolution-like operations with impulse responses. Portions of the impulse responses may be selected for use in the convolution-like operations to trade off between computational complexity and estimation accuracy. Mathematical derivations of analytical expressions for filter structures and impulse responses are disclosed.
摘要翻译： 通过使用来自分析滤波器组的光谱信息的估计处理（诸如修改的离散余弦变换）来获得频谱幅度和相位的估计。 估计过程可以通过具有脉冲响应的卷积状操作来实现。 可以选择脉冲响应的一部分用于卷积状操作以在计算复杂度和估计精度之间进行折衷。 公开了滤波器结构和脉冲响应的解析表达式的数学推导。
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3.发明授权Coding techniques using estimated spectral magnitude and phase derived from MDCT coefficients 有权使用来自MDCT系数的估计光谱幅度和相位的编码技术公开(公告)号：US06980933B2
公开(公告)日：2005-12-27
申请号：US10766681
申请日：2004-01-27
CPC分类号： G06F17/147 , G10L19/0212
摘要： Estimates of spectral magnitude and phase are obtained by an estimation process using spectral information from analysis filter banks such as the Modified Discrete Cosine Transform. The estimation process may be implemented by convolution-like operations with impulse responses. Portions of the impulse responses may be selected for use in the convolution-like operations to trade off between computational complexity and estimation accuracy. Mathematical derivations of analytical expressions for filter structures and impulse responses are disclosed.
摘要翻译： 通过使用来自分析滤波器组的光谱信息的估计处理（诸如修改的离散余弦变换）来获得频谱幅度和相位的估计。 估计过程可以通过具有脉冲响应的卷积状操作来实现。 可以选择脉冲响应的一部分用于卷积状操作以在计算复杂度和估计精度之间进行折衷。 公开了滤波器结构和脉冲响应的解析表达式的数学推导。
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4.发明授权Incremental construction of search tree with signature pointers for identification of multimedia content 有权用于识别多媒体内容的签名指针的搜索树的增量构造公开(公告)号：US08312051B2
公开(公告)日：2012-11-13
申请号：US12666135
申请日：2008-06-20
申请人： Wenyu Jiang , David N. Lathrop
发明人： Wenyu Jiang , David N. Lathrop
IPC分类号： G06F17/30
CPC分类号： G06F17/30858 , G06F17/30743 , G06F17/30778
摘要： Search tree structures with nodes that represent signatures derived from segments of video and audio content are used by systems to identify content and re-establish the correct alignment between video and audio content that have become disassociated with one another. The amount of storage needed to record data representing the tree structure can be reduced by replacing stored signature sets with signature pointers. The efficiency of searches in the tree structure can be improved by constructing and using partial tree structures.
摘要翻译： 具有表示从视频和音频内容的片段导出的签名的节点的搜索树结构被系统用于识别内容并且重新建立彼此分离的视频和音频内容之间的正确对准。 通过使用签名指针替换存储的签名集，可以减少记录表示树结构的数据所需的存储量。 通过构建和使用部分树结构可以提高树结构中搜索的效率。
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