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1. 发明申请

US20120128010A1 MINIMIZING NETWORK LATENCY IN INTERACTIVE INTERNET APPLICATIONS 有权
标题翻译：最小化互联网应用中的网络延迟
公开(公告)号：US20120128010A1
公开(公告)日：2012-05-24
申请号：US12951908
申请日：2010-11-22
申请人： Cheng Huang , Jin Li , Sanjeev Mehrotra , Philip A. Chou , Felix Livni , Hao Chen , Jay Thaler , Chao Zhang , Keith W. Ross
发明人： Cheng Huang , Jin Li , Sanjeev Mehrotra , Philip A. Chou , Felix Livni , Hao Chen , Jay Thaler , Chao Zhang , Keith W. Ross
IPC分类号： H04J3/22
CPC分类号： H04L1/0009 , H04L1/1812 , H04L1/188
摘要： A method and system that enhances a user's performance while interacting with an interactive internet application such as a Massively Multiplayer Online (MMO) game is provided. The network latency experienced by users participating in the MMO game is minimized by dynamically determining an optimal transmission action for a message generated by the MMO game. In one embodiment, determining the optimal transmission action for a message includes dynamically determining the optimal number of redundant Forward Error Correction (FEC) packets to add to a message prior to transmitting a message to a receiving device. The optimal number of FEC packets is determined based on a wide range of varying network conditions.
摘要翻译：提供了一种在与诸如大型多人在线（MMO）游戏之类的交互式互联网应用交互的同时增强用户表现的方法和系统。通过动态地确定由MMO游戏产生的消息的最佳传输动作，使参与MMO游戏的用户经历的网络延迟最小化。在一个实施例中，确定消息的最佳传输动作包括在将消息发送到接收设备之前动态地确定要添加到消息的冗余前向纠错（FEC）分组的最佳数量。基于广泛的变化的网络条件来确定FEC分组的最佳数量。

2. 发明授权

US09059817B2 Minimizing network latency in interactive internet applications 有权
标题翻译：最大限度地减少交互式互联网应用中的网络延迟
公开(公告)号：US09059817B2
公开(公告)日：2015-06-16
申请号：US12951908
申请日：2010-11-22
申请人： Cheng Huang , Jin Li , Sanjeev Mehrotra , Philip A. Chou , Felix Livni , Hao Chen , Jay Thaler , Chao Zhang , Keith W. Ross
发明人： Cheng Huang , Jin Li , Sanjeev Mehrotra , Philip A. Chou , Felix Livni , Hao Chen , Jay Thaler , Chao Zhang , Keith W. Ross
IPC分类号： H04J3/16 , H04L12/26 , H04J3/00 , H04L1/00 , H04L1/18
CPC分类号： H04L1/0009 , H04L1/1812 , H04L1/188
摘要： A method and system that enhances a user's performance while interacting with an interactive internet application such as a Massively Multiplayer Online (MMO) game is provided. The network latency experienced by users participating in the MMO game is minimized by dynamically determining an optimal transmission action for a message generated by the MMO game. In one embodiment, determining the optimal transmission action for a message includes dynamically determining the optimal number of redundant Forward Error Correction (FEC) packets to add to a message prior to transmitting a message to a receiving device. The optimal number of FEC packets is determined based on a wide range of varying network conditions.
摘要翻译：提供了一种在与诸如大型多人在线（MMO）游戏之类的交互式互联网应用交互的同时增强用户表现的方法和系统。通过动态地确定由MMO游戏产生的消息的最佳传输动作，使参与MMO游戏的用户经历的网络延迟最小化。在一个实施例中，确定消息的最佳传输动作包括在将消息发送到接收设备之前动态地确定要添加到消息的冗余前向纠错（FEC）分组的最佳数量。基于广泛的变化的网络条件来确定FEC分组的最佳数量。

3. 发明申请

US20080005188A1 Content Synchronization in a File Sharing Environment 有权
标题翻译：文件共享环境中的内容同步
公开(公告)号：US20080005188A1
公开(公告)日：2008-01-03
申请号：US11428270
申请日：2006-06-30
申请人： Jin Li , Dan Teodosiu , Philip A. Chou , Cheng Huang , Eyal Schwartz , John T. Spivey , Yunnan Wu , Alexandra K. Heron
发明人： Jin Li , Dan Teodosiu , Philip A. Chou , Cheng Huang , Eyal Schwartz , John T. Spivey , Yunnan Wu , Alexandra K. Heron
IPC分类号： G06F17/30
CPC分类号： G06F17/30165 , G06F17/30174 , G06F17/30206
摘要： Content synchronization in a file sharing environment is described. A node in a circle share maintains a version vector that represents that node's knowledge of file synchronization events. Version vector data may be transmitted between nodes of the circle share via a presence service in the form of short notification messages. The version vector data is compared to identify one or more nodes to be synchronized. A resource-aware overlay representing the circle share is computed, and is used to initiate communication to determine which of the available nodes with which to synchronize will provide the most synchronization value to other nodes in the circle share.
摘要翻译：描述文件共享环境中的内容同步。圆形共享中的节点维护一个版本向量，表示该节点对文件同步事件的了解。版本矢量数据可以通过存在服务以短通知消息的形式在圆圈的节点之间传送。将版本矢量数据进行比较，以识别要同步的一个或多个节点。计算表示圆圈共享的资源感知覆盖，并且用于发起通信以确定哪个与其同步的可用节点将与圆共享中的其他节点提供最大的同步值。

4. 发明授权

US07953785B2 Content synchronization in a file sharing environment 有权
标题翻译：文件共享环境中的内容同步
公开(公告)号：US07953785B2
公开(公告)日：2011-05-31
申请号：US11428270
申请日：2006-06-30
申请人： Jin Li , Dan Teodosiu , Philip A. Chou , Cheng Huang , Eyal Schwartz , John T. Spivey , Yunnan Wu , Alexandra K. Heron
发明人： Jin Li , Dan Teodosiu , Philip A. Chou , Cheng Huang , Eyal Schwartz , John T. Spivey , Yunnan Wu , Alexandra K. Heron
IPC分类号： G06F15/16
CPC分类号： G06F17/30165 , G06F17/30174 , G06F17/30206
摘要： Content synchronization in a file sharing environment is described. A node in a circle share maintains a version vector that represents that node's knowledge of file synchronization events. Version vector data may be transmitted between nodes of the circle share via a presence service in the form of short notification messages. The version vector data is compared to identify one or more nodes to be synchronized. A resource-aware overlay representing the circle share is computed, and is used to initiate communication to determine which of the available nodes with which to synchronize will provide the most synchronization value to other nodes in the circle share.
摘要翻译：描述文件共享环境中的内容同步。圆形共享中的节点维护一个版本向量，表示该节点对文件同步事件的了解。版本矢量数据可以通过存在服务以短通知消息的形式在圆圈的节点之间传送。将版本矢量数据进行比较，以识别要同步的一个或多个节点。计算表示圆圈共享的资源感知覆盖，并且用于发起通信以确定哪个与其同步的可用节点将与圆共享中的其他节点提供最大的同步值。

5. 发明授权

US07643491B2 Scheduling connections between peers in a peer-to-peer file sharing environment 有权
标题翻译：在对等文件共享环境中调度对等体之间的连接
公开(公告)号：US07643491B2
公开(公告)日：2010-01-05
申请号：US11275177
申请日：2005-12-16
申请人： Dan Teodosiu , Philip A. Chou , Alexandra Heron , Cheng Huang , Tom Kleinpeter , Jin Li , Eyal Schwartz , John T Spivey , David C. Steere
发明人： Dan Teodosiu , Philip A. Chou , Alexandra Heron , Cheng Huang , Tom Kleinpeter , Jin Li , Eyal Schwartz , John T Spivey , David C. Steere
IPC分类号： H04L12/28
CPC分类号： H04L67/325 , H04L67/06 , H04L67/104 , H04L67/1044 , H04L67/1095 , H04W76/14
摘要： Various embodiments can utilize a distributed solution for scheduling connections between peers in a file sharing environment. In accordance with at least some embodiments, individual nodes in a peer-to-peer system include scheduling software that enables the nodes to make scheduling decisions with regard to how, when and where connections are made with other peers. Scheduling decisions can be based on a number of different parameters. In at least some embodiments, a synchronization negotiation manager is embodied with logic that drives the negotiation and scheduling process. This logic is represented by an innovative state machine that is designed to implement the negotiation and synchronization process.
摘要翻译：各种实施例可以利用分布式解决方案来调度文件共享环境中的对等体之间的连接。根据至少一些实施例，对等系统中的单个节点包括调度软件，其使节点能够就如何，何时何地与其他对等体进行连接做出调度决定。调度决定可以基于许多不同的参数。在至少一些实施例中，同步协商管理器具有驱动协商和调度过程的逻辑。该逻辑由创新的状态机表示，旨在实现协商和同步过程。

6. 发明申请

US20080098123A1 Hybrid Peer-to-Peer Streaming with Server Assistance 审中-公开
标题翻译：混合点对点流服务器协助
公开(公告)号：US20080098123A1
公开(公告)日：2008-04-24
申请号：US11552374
申请日：2006-10-24
申请人： Cheng Huang , Philip A. Chou , Jin Li , Anders E. Klemets
发明人： Cheng Huang , Philip A. Chou , Jin Li , Anders E. Klemets
IPC分类号： G06F15/16
CPC分类号： H04L67/104 , H04L65/4084 , H04L67/1091
摘要： Implementation of hybrid peer-to-peer streaming with server assistance is described. In one implementation, a media source is selected from amongst a plurality of media sources for retrieval of streaming media content. The selection might be based, for example, on an amount of the streaming media content received at respective time units. In one scenario, if the amount received at a time unit is less than a target amount, the streaming media content is retrieved from at least one streaming media server. Conversely, if the amount received at a time unit is more than the target amount, the streaming media content is retrieved from at least one peer-to-peer network. In another embodiment, a playback buffer is monitored to determine an amount of streaming media content at the respective time units. The media source is then selected based on the amount of the streaming media content in the playback buffer.
摘要翻译：描述了具有服务器帮助的混合对等流的实现。在一个实现中，从用于检索流媒体内容的多个媒体源中选择媒体源。该选择可以例如基于在各个时间单位处接收的流媒体内容的量。在一种情况下，如果在时间单元处接收到的量小于目标量，则从至少一个流媒体服务器检索流媒体内容。相反，如果在时间单元处接收的量大于目标量，则从至少一个对等网络检索流媒体内容。在另一个实施例中，监视回放缓冲器以确定各个时间单位处的流媒体内容的数量。然后基于回放缓冲器中的流媒体内容的数量来选择媒体源。

7. 发明授权

US06532562B1 Receiver-driven layered error correction multicast over heterogeneous packet networks 有权
标题翻译：接收器驱动的分层纠错多播在异构分组网络上
公开(公告)号：US06532562B1
公开(公告)日：2003-03-11
申请号：US09316869
申请日：1999-05-21
申请人： Philip A. Chou , Albert S. Wang , Sanjeev Mehrotra
发明人： Philip A. Chou , Albert S. Wang , Sanjeev Mehrotra
IPC分类号： G06F1100
CPC分类号： H04L1/0059 , H04L1/0002 , H04L1/06 , H04L1/08
摘要： “Correction of errors and losses occurring during a receiver-driven layered multicast (RLM) of real-time media over a heterogeneous packet network such as the Internet is accomplished by augmenting RLM with one or more layers of error correction information. Each receiver separately optimizes the quality of received audio and video information by subscribing to at least one error correction layer. Ideally, each source layer in a RLM would have one or more associated multicasted error correction data streams (i.e., layers). Each error correction layer contains information that can be used to replace lost packets from the associated source layer. More than one error correction layer is proposed as some of the error correction packets contained in the data stream needed to replace the packets lost in the associated source stream may themselves be lost in transmission.”
摘要翻译：通过异构分组网络（如Internet）的实时媒体接收机驱动分层多播（RLM）中发生的错误和损失的纠正是通过用一层或多层纠错信息增强RLM来实现的，每个接收机分别优化通过订阅至少一个纠错层，接收的音频和视频信息的质量理想地，RLM中的每个源层将具有一个或多个关联的多播纠错数据流（即，层），每个纠错层包含可以使用来自相关源层的丢失分组来替代不止一个纠错层，因为包含在数据流中的一些纠错分组被包含在替换相关源流中丢失的分组所需的数据流本身可能在传输中丢失 “。

8. 发明授权

US06470469B1 Reconstruction of missing coefficients of overcomplete linear transforms using projections onto convex sets 失效
标题翻译：使用投影到凸集上重建缺失的完全线性变换系数
公开(公告)号：US06470469B1
公开(公告)日：2002-10-22
申请号：US09276842
申请日：1999-03-26
申请人： Philip A. Chou , Sanjeev Mehrotra , Albert S. Wang
发明人： Philip A. Chou , Sanjeev Mehrotra , Albert S. Wang
IPC分类号： H03M1300
CPC分类号： H03M13/35 , G06T5/005 , G06T5/10 , G06T2207/20052 , G06T2207/20056 , H03M13/03 , H03M13/17
摘要： A projection onto convex sets (POCS)-based method for consistent reconstruction of a signal from a subset of quantized coefficients received from an N×K overcomplete transform. By choosing a frame operator F to be the concatenization of two or more K×K invertible transforms, the POCS projections are calculated in RK space using only the K×K transforms and their inverses, rather than the larger RN space using pseudo inverse transforms. Practical reconstructions are enabled based on, for example, wavelet, subband, or lapped transforms of an entire image. In one embodiment, unequal error protection for multiple description source coding is provided. In particular, given a bit-plane representation of the coefficients in an overcomplete representation of the source, one embodiment of the present invention provides coding the most significant bits with the highest redundancy and the least significant bits with the lowest redundancy. In one embodiment, this is accomplished by varying the quantization stepsize for the different coefficients. Then, the available received quantized coefficients are decoded using a method based on alternating projections onto convex sets.
摘要翻译：基于凸集（POCS）的方法的投影，用于从从NxK过完全变换接收的量化系数的子集的信号的一致重构。通过选择一个帧运算符F作为两个或多个KxK可逆变换的并置，POCS投影在RK空间中仅使用KxK变换及其反转而不是使用伪逆变换的较大的RN空间来计算。基于例如整个图像的小波，子带或重叠变换来实现实际重建。在一个实施例中，提供了用于多描述源编码的不等差错保护。特别地，给定源的过完整表示中的系数的位平面表示，本发明的一个实施例提供了具有最高冗余度的最高有效位和具有最低冗余度的最低有效位的编码。在一个实施例中，这通过改变不同系数的量化步长来实现。然后，使用基于在凸集上的交替投影的方法对可用的接收量化系数进行解码。

9. 发明授权

US06594798B1 Receiver-driven layered error correction multicast over heterogeneous packet networks 有权
标题翻译：接收器驱动的分层纠错多播在异构分组网络上
公开(公告)号：US06594798B1
公开(公告)日：2003-07-15
申请号：US09316696
申请日：1999-05-21
申请人： Philip A. Chou , Albert S. Wang , Sanjeev Mehrotra , Alexander E. Mohr
发明人： Philip A. Chou , Albert S. Wang , Sanjeev Mehrotra , Alexander E. Mohr
IPC分类号： G06F702
CPC分类号： H04L1/0059 , H04L1/0002 , H04L1/06 , H04L1/08
摘要： Correction of errors and losses in a receiver-driven layered multicast (RLM) of real-time media over a network is augmented using one or more layers of error correction information. Each receiver separately optimizes the quality of received information by subscribing to at least one error correction layer. Ideally, each source layer in a RLM has one or more associated multicasted error correction data streams. Each error correction layer contains information for replacing lost packets from the associated source layer. More than one error correction layer is proposed to correct for lost packets in other error correction layers. Error correction streams are preferably generated using a pseudo-Automatic Repeat Request (ARQ) wherein a broadcaster sends both the source packets in a primary stream and delayed versions thereof in one or more redundant streams. A hybrid technique combines the psuedo-ARQ method with an adaptation of Forward Error Correction (FEC) techniques.
摘要翻译：使用一层或多层纠错信息来增强网络中实时媒体的接收机驱动的分层多播（RLM）中的错误和损失的校正。每个接收器通过订阅至少一个纠错层分别优化接收信息的质量。理想地，RLM中的每个源层具有一个或多个关联的多播纠错数据流。每个纠错层包含用于替换相关源层丢失数据包的信息。提出了多个纠错层来纠正其他纠错层中的丢包。优选地，使用伪自动重传请求（ARQ）生成错误校正流，其中广播者在一个或多个冗余流中发送主流中的源分组和其延迟版本。混合技术将伪秩ARQ方法与前向纠错（FEC）技术相结合。

10. 发明授权

US06996097B1 Receiver-driven layered error correction multicast over heterogeneous packet networks 有权
标题翻译：接收器驱动的分层纠错多播在异构分组网络上
公开(公告)号：US06996097B1
公开(公告)日：2006-02-07
申请号：US09315810
申请日：1999-05-21
申请人： Philip A. Chou , Albert S. Wang , Sanjeev Mehrotra , Alexander E. Mohr
发明人： Philip A. Chou , Albert S. Wang , Sanjeev Mehrotra , Alexander E. Mohr
IPC分类号： H04L12/56
CPC分类号： H04L1/007 , H04L1/0009 , H04L1/0017 , H04L1/06 , H04L1/1812 , H04L2001/0093
摘要： A system and method for correcting errors and losses occurring during a receiver-driven layered multicast (RLM) of real-time media over a heterogeneous packet network such as the Internet. This is accomplished by augmenting RLM with one or more layers of error correction information. This allows each receiver to separately optimize the quality of received audio and video information by subscribing to at least one error correction layer. Ideally, each source layer in a RLM would have one or more multicasted error correction data streams (i.e., layers) associated therewith. Each of the error correction layers would contain information that can be used to replace lost packets from the associated source layer. More than one error correction layer is proposed as some of the error correction packets contained in the data stream needed to replace the packets lost in the associated source stream may themselves be lost in transmission. A preferred process for generating the error correction streams involves the use of a unique adaptation of the Forward Error Correction (FEC) techniques. This process encodes the transmission data using a linear transform which adds redundant elements. The redundancy permits losses to be corrected because any of the original data elements can be derived from any of the encoded elements. Thus, as long as enough of the encoded data elements are received so as to equal the number of the original data elements, it is possible to derive all the original elements.
摘要翻译：一种用于在异构分组网络（例如因特网）下校正在实时媒体的接收机驱动分层多播（RLM）期间发生的错误和损失的系统和方法。这是通过用一层或多层纠错信息增强RLM来实现的。这允许每个接收机通过订阅至少一个纠错层来分别优化所接收的音频和视频信息的质量。理想地，RLM中的每个源层将具有与其相关联的一个或多个多播的纠错数据流（即，层）。每个纠错层将包含可用于替换相关源层丢失的分组的信息。提出了多于一个纠错层，因为包含在替换相关源流中丢失的分组所需的数据流中的一些纠错分组本身可能在传输中丢失。用于产生纠错流的优选过程涉及使用前向纠错（FEC）技术的唯一适配。该过程使用添加冗余元素的线性变换对传输数据进行编码。冗余允许修正损失，因为任何原始数据元素可以从任何编码元素导出。因此，只要接收到足够的编码数据元素以便等于原始数据元素的数量，就有可能导出所有的原始元素。

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