公开(公告)号：US20060273661A1

公开(公告)日：2006-12-07

申请号：US11144094

申请日：2005-06-02

申请人： John Toebes ,  Ping Li ,  Jack Cham

发明人： John Toebes ,  Ping Li ,  Jack Cham

IPC分类号： H03K3/00

CPC分类号： G06F1/266 ,  H04L12/10 ,  H04L25/0278

摘要： A power sourcing equipment-powered device (PSE-PD) combination unit requests inline power from a connected PSE or other PSE-PD combination unit by having the PD portion of the PD-PSE combination unit adapt its electrical characteristics, if necessary, to obtain the maximum power available. The PD-PSE combination device keeps track of available power less power consumed locally with a summation unit. A PSE manager unit grants PD power requests from downstream devices based upon the available power left (e.g., original PSE power less losses less local consumption).

摘要翻译： 电源设备供电设备（PSE-PD）组合单元通过使PD-PSE组合单元的PD部分适应其电气特性（如果需要）来请求来自连接的PSE或其他PSE-PD组合单元的内联电力以获得 最大功率可用。 PD-PSE组合设备通过求和单元跟踪可用功率消耗在本地消耗的功率。 PSE管理器单元基于剩余的可用功率（例如，原始PSE功率损耗减少本地消耗）向下游设备授予PD功率请求。

公开(公告)号：US20070277219A1

公开(公告)日：2007-11-29

申请号：US11442500

申请日：2006-05-26

申请人： John Toebes ,  Wen-Hsiung Chen ,  Jack Cham ,  Ping Li

发明人： John Toebes ,  Wen-Hsiung Chen ,  Jack Cham ,  Ping Li

IPC分类号： H04N7/16

CPC分类号： H04N7/163 ,  H04N21/2389 ,  H04N21/4384 ,  H04N21/4385 ,  H04N21/64322 ,  H04N21/64784 ,  H04N21/6581

摘要： A method of reducing the channel selection transition delay from a first media data channel to a second media data channel includes the operations of accumulating an independent media data frame and any related dependent media data frames based on a first decoder decoding at least a first portion of a second channel to form a second channel current media state, receiving a channel change request from a second decoder to change decoding to the second media channel, identifying an insertion position for a current independent frame relative to a current second channel frame set, and generating the current independent frame based on the second channel current media state corresponding to the insertion position. The dependent media data frames are used to modify the second channel current media state based on the independent media data frame.

摘要翻译： 减少从第一媒体数据信道到第二媒体数据信道的信道选择转换延迟的方法包括：基于第一解码器对至少第一部分的第一部分进行解码的累加独立媒体数据帧和任何相关的相关媒体数据帧的操作 形成第二信道当前媒体状态的第二信道，从第二解码器接收信道改变请求以将解码改变为第二媒体信道，识别当前独立帧相对于当前第二信道帧集合的插入位置，以及生成 基于与插入位置对应的第二通道当前媒体状态的当前独立帧。 依赖媒体数据帧用于基于独立媒体数据帧来修改第二信道当前媒体状态。

公开(公告)号：US08245264B2

公开(公告)日：2012-08-14

申请号：US11442500

申请日：2006-05-26

申请人： John Toebes ,  Wen-Hsiung Chen ,  Jack Cham ,  Ping Li

发明人： John Toebes ,  Wen-Hsiung Chen ,  Jack Cham ,  Ping Li

IPC分类号： H04N7/173

CPC分类号： H04N7/163 ,  H04N21/2389 ,  H04N21/4384 ,  H04N21/4385 ,  H04N21/64322 ,  H04N21/64784 ,  H04N21/6581

摘要： A method of reducing the channel selection transition delay from a first media data channel to a second media data channel includes the operations of accumulating an independent media data frame and any related dependent media data frames based on a first decoder decoding at least a first portion of a second channel to form a second channel current media state, receiving a channel change request from a second decoder to change decoding to the second media channel, identifying an insertion position for a current independent frame relative to a current second channel frame set, and generating the current independent frame based on the second channel current media state corresponding to the insertion position. The dependent media data frames are used to modify the second channel current media state based on the independent media data frame.

摘要翻译： 减少从第一媒体数据信道到第二媒体数据信道的信道选择转换延迟的方法包括：基于第一解码器对至少第一部分的第一部分进行解码的累加独立媒体数据帧和任何相关的相关媒体数据帧的操作 形成第二信道当前媒体状态的第二信道，从第二解码器接收信道改变请求以将解码改变为第二媒体信道，识别当前独立帧相对于当前第二信道帧集合的插入位置，以及生成 基于与插入位置对应的第二通道当前媒体状态的当前独立帧。 依赖媒体数据帧用于基于独立媒体数据帧来修改第二信道当前媒体状态。

公开(公告)号：US20060239289A1

公开(公告)日：2006-10-26

申请号：US11112635

申请日：2005-04-21

申请人： Danyang Zheng ,  Ping Li ,  Jack Cham ,  Charles Shen

发明人： Danyang Zheng ,  Ping Li ,  Jack Cham ,  Charles Shen

IPC分类号： H04L12/28 ,  H04J3/26

CPC分类号： H04L12/185 ,  H04H20/82 ,  H04H60/33

摘要： A method and apparatus for determining information associated with a particular multicast channel in a multicast network are disclosed. In accordance with the method, a request message requesting information associated with the particular multicast channel is generated and sent to the multicast network. Further, the request message is propagated downstream in a recursive manner via a multicast topology of the multicast network. A response to the request message is propagated upstream via the multicast topology to generate a response message including requested information associated with the particular multicast channel. The information may comprise number of users receiving the particular multicast channel.

摘要翻译： 公开了一种用于确定与组播网络中的特定多播信道相关联的信息的方法和装置。 根据该方法，生成请求与特定多播信道相关联的信息的请求消息并将其发送到组播网络。 此外，请求消息通过组播网络的组播拓扑以递归方式传播到下游。 对请求消息的响应经由多播拓扑在上游传播，以产生包括与特定多播信道相关联的请求信息的响应消息。 该信息可以包括接收特定多播信道的用户数量。

公开(公告)号：US20070214490A1

公开(公告)日：2007-09-13

申请号：US11371987

申请日：2006-03-08

申请人： Gary Cheng ,  Charles Shen ,  Jack Cham ,  Ping Li

发明人： Gary Cheng ,  Charles Shen ,  Jack Cham ,  Ping Li

IPC分类号： H04N7/16

CPC分类号： H04N21/435 ,  H04N21/235 ,  H04N21/23614 ,  H04N21/4305 ,  H04N21/4384 ,  H04N21/6405

摘要： Methods and systems for reducing channel change startup delays for multicast digital video streams are described. Packets of a multicast digital video transport stream having a plurality of normal Group of Pictures are received. Further, a channel change request is received and a speed-up Group of Pictures is inserted in the stream in response to the channel change request. In one embodiment, video stream specific information is also inserted in the stream. The packets are processed and transmitted.

摘要翻译： 描述了用于减少多播数字视频流的通道改变启动延迟的方法和系统。 接收具有多个正常图像组的组播数字视频传输流的分组。 此外，响应于频道改变请求，接收频道改变请求并且加速图像组被插入到流中。 在一个实施例中，视频流特定信息也被插入流中。 数据包被处理和传输。

公开(公告)号：US20070195776A1

公开(公告)日：2007-08-23

申请号：US11361465

申请日：2006-02-23

申请人： Danyang Zheng ,  Ramanathan Jagadeesan ,  Bich Nguyen ,  Jack Cham

发明人： Danyang Zheng ,  Ramanathan Jagadeesan ,  Bich Nguyen ,  Jack Cham

IPC分类号： H04L12/56

CPC分类号： H04L45/00 ,  H04L63/0272 ,  H04L63/102

摘要： A method for channeling network traffic is described, which includes identifying, with an agent disposed within a client computer of the network, a portion of the network traffic associated with the client computer that has compliance related interest. The identified compliance interesting traffic portion is encapsulated with a header. Apart from the encapsulated traffic portion, the network traffic is routed according to its designated destination. The interesting traffic portion however is diverted on the basis of the encapsulating header. The diverted traffic portion is channeled for compliance related processing. Upon being channeled, the traffic portion is processed according to a compliance related policy. The processing is performed remotely from the client computer.

摘要翻译： 描述了用于引导网络流量的方法，其包括使用布置在网络的客户端计算机内的代理识别与客户端计算机相关联的具有合规性相关兴趣的部分网络流量。 所识别的合规有趣的业务部分被封装成一个报头。 除了封装的流量部分，网络流量根据其指定的目的地进行路由。 然而，有趣的业务部分在封装头部的基础上转移。 转向流量部分被引导以进行合规性相关处理。 在被引导后，根据合规性相关的策略处理业务部分。 处理从客户端计算机远程执行。

公开(公告)号：US20070204320A1

公开(公告)日：2007-08-30

申请号：US11364152

申请日：2006-02-27

申请人： Fang Wu ,  Jack Cham ,  Michael Pereira

发明人： Fang Wu ,  Jack Cham ,  Michael Pereira

IPC分类号： H04N5/50 ,  H04N7/16

CPC分类号： H04N21/434 ,  H04N5/4401 ,  H04N21/2187 ,  H04N21/2402 ,  H04N21/4331 ,  H04N21/4384 ,  H04N21/4622 ,  H04N21/4667 ,  H04N21/6125 ,  H04N21/6175

摘要： In a packet based multicast video streaming network, a method for minimizing delay in displaying video on a TV set in response to a viewer changing the channel is disclosed. For each live multicast video stream, one or more reference frames and corresponding compressed frames are temporarily stored in a memory in anticipation of the viewer switching to that particular program. When the viewer changes channels, the previously stored reference and compressed frames are immediately read from the memory and rendered for display on the TV. This eliminates the need to wait for the next available reference frame. In other words, this eliminates a temporary blank TV screen each time the channel is changed. Certain compressed frames are dropped and blank frames can be inserted in order to catch up to and synchronize with the live video broadcast. The particular frames to be dropped and the number of blank frames to be inserted is a function of the bandwidth limitation imposed by the last mile of the network.

摘要翻译： 在基于分组的多播视频流网络中，公开了一种用于响应于观看者改变频道而在电视机上显示视频的延迟最小化的方法。 对于每个实时多播视频流，预期观众切换到该特定节目，一个或多个参考帧和对应的压缩帧被临时存储在存储器中。 当观众改变频道时，先前存储的参考和压缩帧立即从存储器中读出并呈现在TV上显示。 这消除了等待下一个可用参考帧的需要。 换句话说，这消除了每次通道改变时的临时空白电视屏幕。 某些压缩帧被丢弃，并且可以插入空白帧以便赶上并与实时视频广播同步。 要删除的特定帧和要插入的空白帧的数量是由网络的最后一英里施加的带宽限制的函数。