公开(公告)号：US07945006B2

公开(公告)日：2011-05-17

申请号：US10875553

申请日：2004-06-24

申请人： Jingdong Chen ,  Yiteng Arden Huang ,  Thomas Y Woo

发明人： Jingdong Chen ,  Yiteng Arden Huang ,  Thomas Y Woo

IPC分类号： H04B1/10

CPC分类号： H04M7/006 ,  H04L29/06027 ,  H04L65/4038 ,  H04L65/605 ,  H04M3/56 ,  H04M3/568

摘要： An apparatus for mixing audio signals in a voice-over-IP teleconferencing environment comprises a preprocessor, a mixing controller, and a mixing processor. The preprocessor is divided into a media parameter estimator and a media preprocessor. The media parameter estimator estimates signal parameters such as signal-to-noise ratios, energy levels, and voice activity (i.e., the presence or absence of voice in the signal), which are used to control how different channels are mixed. The media preprocessor employs signal processing algorithms such as silence suppression, automatic gain control, and noise reduction, so that the quality of the incoming voice streams is optimized. Based on a function of the estimated signal parameters, the mixing controller specifies a particular mixing strategy and the mixing processor mixes the preprocessed voice streams according the strategy provided by the controller.

摘要翻译： 一种用于在IP语音电话会议环境中混合音频信号的装置包括预处理器，混合控制器和混合处理器。 预处理器被分为媒体参数估计器和媒体预处理器。 媒体参数估计器估计用于控制如何混合不同信道的信号参数，例如信噪比，能级和语音活动（即信号中的语音的存在或不存在）。 媒体预处理器采用静音抑制，自动增益控制，降噪等信号处理算法，优化了传入语音流的质量。 基于估计的信号参数的函数，混合控制器指定特定的混合策略，并且混合处理器根据控制器提供的策略来混合预处理的语音流。

公开(公告)号：US06697844B1

公开(公告)日：2004-02-24

申请号：US09587445

申请日：2000-06-05

申请人： Mun-Choon Chan ,  Thomas Y Woo

发明人： Mun-Choon Chan ,  Thomas Y Woo

IPC分类号： G06F1300

CPC分类号： H04L67/2828 ,  G06F17/30902 ,  H04L67/02 ,  H04L67/2842 ,  H04L67/42 ,  H04L69/329

摘要： The amount of information associated with an electronic mail message that must be transmitted from an electronic mail server to a client electronic mail application at a user's computer or workstation is reduced using a cache-based compaction technique. This technique enable a requested electronic mail message to be encoded in the server using information relating to similar objects that were previously transferred by the server to the client and that remain available to the server. Differential encoding is performed in the server such that the server transmits to the client information indicative of the differences between the requested object and the reference (similar) objects available in the server cache. A corresponding decoding operation is performed in the client, using the encoded version and reference objects available in the client cache. A similar technique is employed for encoding electronic mail messages in the client that are to be transmitted to the server.

摘要翻译： 使用基于缓存的压缩技术来减少与电子邮件消息相关联的信息量，其必须从电子邮件服务器发送到用户计算机或工作站处的客户端电子邮件应用。 该技术使得所请求的电子邮件消息能够在服务器中使用与先前由服务器传送到客户机并且对服务器保持可用的类似对象相关的信息进行编码。 在服务器中执行差分编码，使得服务器向客户端发送指示请求的对象与服务器高速缓存中可用的引用（类似）对象之间的差异的信息。 使用客户端缓存中可用的编码版本和参考对象，在客户端中执行相应的解码操作。 对于要发送到服务器的客户端中的电子邮件消息进行编码也采用类似的技术。

公开(公告)号：US08385206B2

公开(公告)日：2013-02-26

申请号：US12646274

申请日：2009-12-23

申请人： Thyagarajan Nandagopal ,  Thomas Y Woo

发明人： Thyagarajan Nandagopal ,  Thomas Y Woo

IPC分类号： H04J1/16

CPC分类号： H04L47/10 ,  H04L47/20 ,  H04L47/215 ,  H04L47/29 ,  H04L47/31

摘要： An advance is made over the prior art in accordance with the principles of the present invention that is directed to a new approach for a system and method of Single Rate Three Color Marker (srTCM) and Two Rate Three Color Marker (trTCM) methodology. The invention eliminates deficiencies present in existing standards that allow a user to defeat the traffic meter that is used to ensure bandwidth usage is within limits imposed by the provider. Adoption of these invention will ensure compliance with the goals of an ideal Single Rate Three Color Marker (srTCM) and Two Rate Three Color Marker (trTCM) scheme.

摘要翻译： 根据本发明的原理，针对单速率三色标记（srTCM）和双速率三色标记（trTCM）方法的系统和方法的新方法进行了改进。 本发明消除了现有标准中存在的缺陷，其允许用户打败用于确保带宽使用的流量计在提供商施加的限制内。 采用这些发明将确保符合理想的单速率三色标记（srTCM）和双速三色标记（trTCM）方案的目标。

公开(公告)号：US06604147B1

公开(公告)日：2003-08-05

申请号：US09567371

申请日：2000-05-09

申请人： Thomas Y Woo

发明人： Thomas Y Woo

IPC分类号： G06F1300

CPC分类号： H04L47/32 ,  H04L45/60 ,  H04L47/10 ,  H04L47/2433

摘要： In a data communications network, an edge router comprises a buffer for storing data packets, one or more line interface cards for routing data packets to and from the data communications network, and a processing engine for processing a limited portion of each packet that has been captured by an associated line interface card in a packet tag. The processing engine includes one or more pipeline processing modules (PPMs) which may be dynamically configured by a system controller to perform specific processing functions in a pipelined arrangement. In order to increase edge router throughput, each packet tag is processed by the processing engine essentially in parallel with storage of the associated data packet in the buffer by the associated line interface card.

摘要翻译： 在数据通信网络中，边缘路由器包括用于存储数据分组的缓冲器，用于向数据通信网络和从数据通信网络路由数据分组的一个或多个线路接口卡，以及用于处理每个分组的有限部分的处理引擎 由分组标签中的相关线路接口卡捕获。 处理引擎包括一个或多个流水线处理模块（PPM），其可由系统控制器动态地配置以以流水线布置来执行特定的处理功能。 为了增加边缘路由器吞吐量，每个分组标签由处理引擎基本上与相关联的线路接口卡中的相关联的数据分组在缓冲器中的存储并行地处理。

公开(公告)号：US08542602B2

公开(公告)日：2013-09-24

申请号：US12317807

申请日：2008-12-30

申请人： Thyagarajan Nandagopal ,  Thomas Y Woo

发明人： Thyagarajan Nandagopal ,  Thomas Y Woo

IPC分类号： H04J1/16

CPC分类号： H04L47/10 ,  H04L47/20 ,  H04L47/50 ,  H04L47/60 ,  H04L47/621 ,  H04L49/901

摘要： An enmeshed hierarchy of policers, different from traditional tree-based hierarchical system of policers is used in accordance with the present invention. A goal of using an enmeshed architecture of policing systems is to allow for a more complex set of policies to be defined across a network. Hierarchical/cascading systems ensure that the higher granularity assignments essentially dictate/constrain the behavior of finer grained assignments at higher levels for sub-flows. There is only one type of metric possible for the largest granular policer, so the only way to implement multiple system-wide metrics is to repeat the hierarchy multiple times over, which adds to the delay of the packet and the complexity of the router. In accordance with the enmeshed architecture of the present invention, multiple system-wide metrics can be implemented simultaneously, which allows for easier management of the various macro-level policies by the manager of an access network.

摘要翻译： 根据本发明使用与传统的基于树的分层系统不同的策略层级的层次结构。 使用网络管理系统架构的目标是允许在整个网络中定义更复杂的策略集。 分级/级联系统确保较高的粒度分配基本上决定/限制较高级别的子流程中更细粒度分配的行为。 对于最大的粒度监控器只能有一种类型的度量，因此实现多个系统级度量的唯一方法是多次重复层次结构，这增加了数据包的延迟和路由器的复杂性。 根据本发明的嵌套体系结构，可以同时实现多个系统范围的度量，这允许由接入网络的管理者更容易地管理各种宏观级策略。