公开(公告)号：US20050185850A1

公开(公告)日：2005-08-25

申请号：US10783951

申请日：2004-02-19

申请人： Mark Vinton ,  Grant Davidson

发明人： Mark Vinton ,  Grant Davidson

IPC分类号： G06F17/14 ,  G06T9/00 ,  H04N7/26 ,  H04N7/30 ,  G06K9/36

CPC分类号： G06F17/147 ,  G10L19/0212 ,  H04N19/122 ,  H04N19/60

摘要： Analysis and synthesis filter banks such as those used in audio and video coding systems are each implemented by a hybrid transform that comprises a primary transform in cascade with one or more secondary transforms. The primary transforms for the filter banks implement an analysis/synthesis system in which time-domain aliasing artifacts are cancelled. The secondary transforms, which are in cascade with the primary transforms, are applied to blocks of transform coefficients. The length of the blocks is varied to adapt the time resolution of the analysis and synthesis filter banks.

摘要翻译： 分析和合成滤波器组（例如在音频和视频编码系统中使用的滤波器组）各自通过包含与一个或多个次级变换级联的初级变换的混合变换来实现。 滤波器组的主要变换实现了时域混叠伪像被取消的分析/综合系统。 与主变换级联的次级变换被应用于变换系数块。 改变块的长度以适应分析和合成滤波器组的时间分辨率。

公开(公告)号：US20080040103A1

公开(公告)日：2008-02-14

申请号：US11888646

申请日：2007-07-31

申请人： Mark Vinton ,  Alan Seefeldt

发明人： Mark Vinton ,  Alan Seefeldt

IPC分类号： G10L19/00

CPC分类号： G10L19/008 ,  G10L19/02

摘要： Certain types of parametric spatial coding encoders use interchannel amplitude differences, interchannel time differences, and interchannel coherence or correlation to build a parametric model of a multichannel soundfield that is used by a decoder to construct an approximation of the original soundfield. However, such a parametric model does not reconstruct the original temporal envelope of the soundfield's channels, which has been found to be extremely important for some audio signals. The present invention provides for the reshaping the temporal envelope of one or more of the decoded channels in a spatial coding system to better match one or more original temporal envelopes.

公开(公告)号：US20080097750A1

公开(公告)日：2008-04-24

申请号：US11999159

申请日：2007-12-03

申请人： Alan Seefeldt ,  Mark Vinton ,  Charles Robinson

发明人： Alan Seefeldt ,  Mark Vinton ,  Charles Robinson

IPC分类号： G10L21/00 ,  H04S3/00

CPC分类号： H04S3/008 ,  G10L19/008 ,  H04S5/005 ,  H04S2420/03

摘要： During production, at least one audio signal is processed in order to derive instructions for channel reconfiguring it. The at least one audio signal and the instructions are stored or transmitted. During consumption, the at least one audio signal is channel reconfigured in accordance with the instructions. Channel reconfiguring includes upmixing, downmixing, and spatial reconfiguration. By determining the channel reconfiguration instructions during production, processing resources during consumption are reduced.

摘要翻译： 在生产期间，处理至少一个音频信号以便导出用于信道重新配置的指令。 存储或发送至少一个音频信号和指令。 在消费期间，至少一个音频信号是根据指令重新配置的信道。 通道重新配置包括上混合，下混合和空间重新配置。 通过在生产期间确定信道重配置指令，减少了消费过程中的资源处理。

公开(公告)号：US20080046253A1

公开(公告)日：2008-02-21

申请号：US11660893

申请日：2005-08-15

申请人： Mark Vinton ,  Alan Seefeldt

发明人： Mark Vinton ,  Alan Seefeldt

IPC分类号： G10L19/00

CPC分类号： G10L19/008 ,  G10L19/02

摘要： Certain types of parametric spatial coding encoders use interchannel amplitude differences, interchannel time differences, and interchannel coherence or correlation to build a parametric model of a multichannel soundfield that is used by a decoder to construct an approximation of the original soundfield. However, such a parametric model does not reconstruct the original temporal envelope of the soundfield's channels, which has been found to be extremely important for some audio signals. The present invention provides for the reshaping the temporal envelope of one or more of the decoded channels in a spatial coding system to better match one or more original temporal envelopes.

摘要翻译： 某些类型的参数空间编码编码器使用信道间幅度差异，信道间时间差和信道间相干或相关来建立由解码器用于构造原始声场的近似的多声道声场的参数模型。 然而，这样的参数模型不会重建声场的信道的原始时间包络，这被发现对于一些音频信号是非常重要的。 本发明提供了在空间编码系统中重构一个或多个解码信道的时间包络，以更好地匹配一个或多个原始时间包络。

公开(公告)号：US20080025519A1

公开(公告)日：2008-01-31

申请号：US11881435

申请日：2007-07-27

申请人： Rongshan Yu ,  Charles Robinson ,  Mark Vinton

发明人： Rongshan Yu ,  Charles Robinson ,  Mark Vinton

IPC分类号： H04R5/00

CPC分类号： H04S3/002 ,  H04S2400/01 ,  H04S2420/01 ,  H04S2420/03

摘要： Transfer functions like Head Related Transfer Functions (HRTF) needed for binaural rendering are implemented efficiently by a subband-domain filter structure. In one implementation, amplitude, fractional-sample delay and phase-correction filters are arranged in cascade with one another and applied to subband signals that represent spectral content of an audio signal in frequency subbands. Other filter structures are also disclosed. These filter structures may be used advantageously in a variety of signal processing applications. A few examples of audio applications include signal bandwidth compression, loudness equalization, room acoustics correction and assisted listening for individuals with hearing impairments.

摘要翻译： 通过子带域滤波器结构有效实现双耳渲染所需的头相关传输功能（HRTF）等传输功能。 在一个实现中，幅度，分数采样延迟和相位校正滤波器彼此级联地布置并且被应用于表示频率子带中的音频信号的频谱内容的子带信号。 还公开了其它过滤器结构。 这些滤波器结构可以有利地用于各种信号处理应用中。 音频应用的几个示例包括信号带宽压缩，响度均衡，房间声学校正和辅助听力听觉障碍的个人。

公开(公告)号：US20050167927A1

公开(公告)日：2005-08-04

申请号：US11046742

申请日：2005-01-31

申请人： David Mormile ,  Mark Vinton

发明人： David Mormile ,  Mark Vinton

IPC分类号： F16J15/34 ,  F16J15/16

CPC分类号： F16J15/348 ,  F16J15/3452

摘要： The invention provides a seal for a rotatable shaft. The seal includes an inner case mountable to the shaft and having a body and first and second flanges extending radially outward from the body. The seal includes first and second sealing discs operable to seal against the first and second flanges of the inner case. The sealing discs are immovably associated with a housing spaced from the shaft. A spring encircles the shaft and inner case to urge the sealing discs against the flanges. The spring rate of the spring is controlled to enhance sealing, reduce turning torque, and extend life of the seal.

摘要翻译： 本发明提供了一种用于可旋转轴的密封件。 所述密封件包括可安装到所述轴并具有本体的内壳，以及从所述主体径向向外延伸的第一和第二凸缘。 密封件包括可操作以密封内壳的第一和第二凸缘的第一和第二密封盘。 密封盘不可移动地与与轴间隔开的壳体相关联。 弹簧围绕轴和内壳，以将密封盘推向凸缘。 控制弹簧的弹簧刚度以增强密封，减少转动扭矩，延长密封的使用寿命。

公开(公告)号：US20080033732A1

公开(公告)日：2008-02-07

申请号：US11888662

申请日：2007-07-31

申请人： Alan Seefeldt ,  Mark Vinton ,  Charles Quito Robinson

发明人： Alan Seefeldt ,  Mark Vinton ,  Charles Quito Robinson

IPC分类号： G10L21/00

CPC分类号： H04S3/008 ,  G10L19/008 ,  H04S5/005 ,  H04S2420/03

摘要： During production, at least one audio signal is processed in order to derive instructions for channel reconfiguring it. The at least one audio signal and the instructions are stored or transmitted. During consumption, the at least one audio signal is channel reconfigured in accordance with the instructions. Channel reconfiguring includes upmixing, downmixing, and spatial reconfiguration. By determining the channel reconfiguration instructions during production, processing resources during consumption are reduced.

公开(公告)号：US20080033731A1

公开(公告)日：2008-02-07

申请号：US11888651

申请日：2007-07-31

申请人： Mark Vinton ,  Alan Seefeldt

发明人： Mark Vinton ,  Alan Seefeldt

IPC分类号： G10L19/00

CPC分类号： G10L19/008 ,  G10L19/02

摘要： Certain types of parametric spatial coding encoders use interchannel amplitude differences, interchannel time differences, and interchannel coherence or correlation to build a parametric model of a multichannel soundfield that is used by a decoder to construct an approximation of the original soundfield. However, such a parametric model does not reconstruct the original temporal envelope of the soundfield's channels, which has been found to be extremely important for some audio signals. The present invention provides for the reshaping the temporal envelope of one or more of the decoded channels in a spatial coding system to better match one or more original temporal envelopes.

摘要翻译： 某些类型的参数空间编码编码器使用信道间幅度差异，信道间时间差和信道间相干或相关性来构建多声道声场的参数模型，由解码器构造原始声场的近似。 然而，这样的参数模型不会重建声场的信道的原始时间包络，这被发现对于一些音频信号是非常重要的。 本发明提供了在空间编码系统中重构一个或多个解码信道的时间包络，以更好地匹配一个或多个原始时间包络。

公开(公告)号：US20070182102A1

公开(公告)日：2007-08-09

申请号：US11734348

申请日：2007-04-12

申请人： David Mormile ,  Mark Vinton

发明人： David Mormile ,  Mark Vinton

IPC分类号： F16J15/34

CPC分类号： F16J15/348 ,  F16J15/3452

摘要： The invention provides a seal for a rotatable shaft. The seal includes an inner case mountable to the shaft and having a body and first and second flanges extending radially outward from the body. The seal includes first and second sealing discs operable to seal against the first and second flanges of the inner case. The sealing discs are immovably associated with a housing spaced from the shaft. A spring encircles the shaft and inner case to urge the sealing discs against the flanges. The spring rate of the spring is controlled to enhance sealing, reduce turning torque, and extend life of the seal.

摘要翻译： 本发明提供了一种用于可旋转轴的密封件。 所述密封件包括可安装到所述轴并具有本体的内壳，以及从所述主体径向向外延伸的第一和第二凸缘。 密封件包括可操作以密封内壳的第一和第二凸缘的第一和第二密封盘。 密封盘不可移动地与与轴间隔开的壳体相关联。 弹簧围绕轴和内壳，以将密封盘推向凸缘。 控制弹簧的弹簧刚度以增强密封，减少转动扭矩，延长密封的使用寿命。