公开(公告)号：US07986637B2

公开(公告)日：2011-07-26

申请号：US12613388

申请日：2009-11-05

申请人： Shivendra S. Panwar ,  Keith W. Ross ,  Yao Wang

发明人： Shivendra S. Panwar ,  Keith W. Ross ,  Yao Wang

IPC分类号： H04L12/28

CPC分类号： H04L29/06027 ,  H04L65/4084 ,  H04L65/607 ,  H04L67/104 ,  H04L67/1046 ,  H04L67/1048 ,  H04L67/1085 ,  H04N21/2668 ,  H04N21/4788 ,  H04N21/482 ,  H04N21/632 ,  H04N21/6473 ,  H04N21/64792 ,  H04N21/8405

摘要： A peer-to-peer novel video streaming scheme is described in which each peer stores and streams videos to the requesting client peers. Each video is encoded into multiple descriptions and each description is placed on a different node. If a serving peer disconnects in the middle of a streaming session, the system searches for a replacement peer that stores the same video description and has sufficient uplink bandwidth. Employing multiple description coding in a peer-to-peer based network improves the robustness of the distributed streaming content in the event a serving peer is lost. Video quality can be maintained in the presence of server peers being lost. The video codec design and network policies have a significant effect on the streamed video quality. The system performance generally improves as the number of descriptions M for the video increases, which implies that a higher video quality can be obtained with the same network loading.

摘要翻译： 描述了一种对等小说视频流方案，其中每个对等体将视频存储并流向请求的客户端对等体。 每个视频被编码成多个描述，并且每个描述被放置在不同的节点上。 如果服务对等体在流媒体会话中间断开连接，系统将搜索存储相同视频描述并具有足够上行带宽的替换对等体。 在基于对等的网络中采用多描述编码改善了在服务对等体丢失的情况下分布式流内容的鲁棒性。 在丢失服务器对等体的情况下，可以维护视频质量。 视频编解码器设计和网络策略对流式视频质量有显着影响。 随着视频的描述数量M的增加，系统性能通常会有所提高，这意味着可以通过相同的网络负载获得更高的视频质量。

公开(公告)号：US07633887B2

公开(公告)日：2009-12-15

申请号：US11337833

申请日：2006-01-23

申请人： Shivendra S. Panwar ,  Keith W. Ross ,  Yao Wang

发明人： Shivendra S. Panwar ,  Keith W. Ross ,  Yao Wang

IPC分类号： H04L12/28

CPC分类号： H04L29/06027 ,  H04L65/4084 ,  H04L65/607 ,  H04L67/104 ,  H04L67/1046 ,  H04L67/1048 ,  H04L67/1085 ,  H04N21/2668 ,  H04N21/4788 ,  H04N21/482 ,  H04N21/632 ,  H04N21/6473 ,  H04N21/64792 ,  H04N21/8405

摘要： A peer-to-peer novel video streaming scheme is described in which each peer stores and streams videos to the requesting client peers. Each video is encoded into multiple descriptions and each description is placed on a different node. If a serving peer disconnects in the middle of a streaming session, the system searches for a replacement peer that stores the same video description and has sufficient uplink bandwidth. Employing multiple description coding in a peer-to-peer based network improves the robustness of the distributed streaming content in the event a serving peer is lost. Video quality can be maintained in the presence of server peers being lost. The video codec design and network policies have a significant effect on the streamed video quality. The system performance generally improves as the number of descriptions M for the video increases, which implies that a higher video quality can be obtained with the same network loading.

摘要翻译： 描述了一种对等小说视频流方案，其中每个对等体将视频存储并流向请求的客户端对等体。 每个视频被编码成多个描述，并且每个描述被放置在不同的节点上。 如果服务对等体在流媒体会话中间断开连接，系统将搜索存储相同视频描述并具有足够上行带宽的替换对等体。 在基于对等的网络中采用多描述编码改善了在服务对等体丢失的情况下分布式流内容的鲁棒性。 在丢失服务器对等体的情况下，可以维护视频质量。 视频编解码器设计和网络策略对流式视频质量有显着影响。 随着视频的描述数量M的增加，系统性能通常会有所提高，这意味着可以通过相同的网络负载获得更高的视频质量。

公开(公告)号：US08290037B2

公开(公告)日：2012-10-16

申请号：US12145675

申请日：2008-06-25

申请人： Zhengye Liu ,  Shivendra S. Panwar ,  Keith W. Ross ,  Yanming Shen ,  Yao Wang

发明人： Zhengye Liu ,  Shivendra S. Panwar ,  Keith W. Ross ,  Yanming Shen ,  Yao Wang

IPC分类号： H04N7/12

CPC分类号： H04N7/17309 ,  H04N21/234327 ,  H04N21/4622 ,  H04N21/472 ,  H04N21/4788 ,  H04N21/631

摘要： MD-FEC is considered an efficient way to generate a large number of descriptions. However, typically, MD-FEC introduces significant redundancy across streams. MD-FEC encoded streams (descriptions) are adapted based on feedback. Specifically, the bits sent in each description by a supplying peer are adapted based on the number of available descriptions in its receiving peer. The adaptive delivery eliminates unnecessary bits in the original MD-FEC streams (descriptions), and significantly reduces the consumed uplink bandwidth at supplying peers. The saved bandwidth can be used to accommodate more video sessions or for other applications.

摘要翻译： MD-FEC被认为是生成大量描述的有效方法。 然而，通常，MD-FEC在流之间引入显着的冗余。 MD-FEC编码流（描述）基于反馈进行调整。 具体地，由供应对等体在每个描述中发送的比特基于其接收对等体中的可用描述的数量进行调整。 自适应传输消除了原始MD-FEC流（描述）中的不必要的比特，并且显着降低了在提供对等体时消耗的上行链路带宽。 保存的带宽可用于容纳更多视频会话或其他应用程序。

公开(公告)号：US20100005185A1

公开(公告)日：2010-01-07

申请号：US12490751

申请日：2009-06-24

申请人： Zhengye Liu ,  Shivendra S. Panwar ,  Keith W. Ross ,  Yamming Shen ,  Yao Wang

发明人： Zhengye Liu ,  Shivendra S. Panwar ,  Keith W. Ross ,  Yamming Shen ,  Yao Wang

IPC分类号： G06F15/16

CPC分类号： H04L67/104 ,  H04L67/1002 ,  H04L67/101 ,  H04L67/1068

摘要： In a live video P2P system using substream trading, a peer device's video quality is generally commensurate with its upload rate. Such substream trading provides in a P2P live video streaming system provides incentives and can accommodate a variety of video coding schemes. In particular, substream trading with layered video has many desirable properties, including differentiated service, short start-up delays, synergies across peer device types, and protection against free-riders.

摘要翻译： 在使用子流交易的实时视频P2P系统中，对等设备的视频质量通常与其上传速率相称。 这样的子流交易在P2P实时视频流系统中提供激励并可以适应各种视频编码方案。 特别地，具有分层视频的子流交易具有许多期望的性质，包括差异化服务，短启动延迟，对等设备类型的协同效应以及对免费骑车者的保护。

公开(公告)号：US20100049867A1

公开(公告)日：2010-02-25

申请号：US12613388

申请日：2009-11-05

申请人： Shivendra S. Panwar ,  Keith W. Ross ,  Yao Wang

发明人： Shivendra S. Panwar ,  Keith W. Ross ,  Yao Wang

IPC分类号： G06F15/16

CPC分类号： H04L29/06027 ,  H04L65/4084 ,  H04L65/607 ,  H04L67/104 ,  H04L67/1046 ,  H04L67/1048 ,  H04L67/1085 ,  H04N21/2668 ,  H04N21/4788 ,  H04N21/482 ,  H04N21/632 ,  H04N21/6473 ,  H04N21/64792 ,  H04N21/8405

摘要： A peer-to-peer novel video streaming scheme is described in which each peer stores and streams videos to the requesting client peers. Each video is encoded into multiple descriptions and each description is placed on a different node. If a serving peer disconnects in the middle of a streaming session, the system searches for a replacement peer that stores the same video description and has sufficient uplink bandwidth. Employing multiple description coding in a peer-to-peer based network improves the robustness of the distributed streaming content in the event a serving peer is lost. Video quality can be maintained in the presence of server peers being lost. The video codec design and network policies have a significant effect on the streamed video quality. The system performance generally improves as the number of descriptions M for the video increases, which implies that a higher video quality can be obtained with the same network loading.

摘要翻译： 描述了一种对等小说视频流方案，其中每个对等体将视频存储并流向请求的客户端对等体。 每个视频被编码成多个描述，并且每个描述被放置在不同的节点上。 如果服务对等体在流媒体会话中间断开连接，则系统搜索存储相同视频描述并具有足够上行带宽的替换对等体。 在基于对等的网络中采用多描述编码改善了在服务对等体丢失的情况下分布式流内容的鲁棒性。 在丢失服务器对等体的情况下，可以维护视频质量。 视频编解码器设计和网络策略对流式视频质量有显着影响。 随着视频的描述数量M的增加，系统性能通常会有所提高，这意味着可以通过相同的网络负载获得更高的视频质量。

公开(公告)号：US20090037968A1

公开(公告)日：2009-02-05

申请号：US12146374

申请日：2008-06-25

申请人： Zhengye Liu ,  Shivendra S. Panwar ,  Keith W. Ross ,  Yanming Shen ,  Yao Wang

发明人： Zhengye Liu ,  Shivendra S. Panwar ,  Keith W. Ross ,  Yanming Shen ,  Yao Wang

IPC分类号： H04N7/173

CPC分类号： H04N7/17309 ,  H04N21/21805 ,  H04N21/234327 ,  H04N21/440227 ,  H04N21/4788 ,  H04N21/637 ,  H04N21/6582

摘要： A distributed incentive mechanism is provided for peer-to-peer (P2P) streaming networks, such as mesh-pull P2P live streaming networks. Video (or audio) may be encoded into multiple sub-streams such as layered coding and multiple description coding. The system is heterogeneous with peers having different uplink bandwidths. Peers that upload more data (to a peer) receive more substreams (from that peer) and consequently better video quality. Unlike previous approaches in which each peer receives the same video quality no matter how much bandwidth it contributes to the system, differentiated video quality, commensurate with a peer's contribution to other peers, is provided, thereby discouraging free-riders.

摘要翻译： 为P2P（P2P）流媒体网络提供分布式激励机制，如网状P2P直播流媒体网络。 视频（或音频）可以被编码成多个子流，例如分层编码和多描述编码。 该系统与具有不同上行链路带宽的对等体是异构的。 上传更多数据（对等体）的对等体接收更多子流（来自该对等体），从而更好的视频质量。 不同于以前的方法，其中每个对等体接收相同的视频质量，无论它对系统有多大的带宽，提供与对等体对其他对等体的贡献相当的差分视频质量，从而阻止自由骑士。

公开(公告)号：US20090034614A1

公开(公告)日：2009-02-05

申请号：US12145675

申请日：2008-06-25

申请人： Zhengye Liu ,  Shivendra S. Panwar ,  Keith W. Ross ,  Yanming Shen ,  Yao Wang

发明人： Zhengye Liu ,  Shivendra S. Panwar ,  Keith W. Ross ,  Yanming Shen ,  Yao Wang

IPC分类号： H04N11/04

CPC分类号： H04N7/17309 ,  H04N21/234327 ,  H04N21/4622 ,  H04N21/472 ,  H04N21/4788 ,  H04N21/631

摘要： MD-FEC is considered an efficient way to generate a large number of descriptions. However, typically, MD-FEC introduces significant redundancy across streams. MD-FEC encoded streams (descriptions) are adapted based on feedback. Specifically, the bits sent in each description by a supplying peer are adapted based on the number of available descriptions in its receiving peer. The adaptive delivery eliminates unnecessary bits in the original MD-FEC streams (descriptions), and significantly reduces the consumed uplink bandwidth at supplying peers. The saved bandwidth can be used to accommodate more video sessions or for other applications.

摘要翻译： MD-FEC被认为是生成大量描述的有效方法。 然而，通常，MD-FEC在流之间引入显着的冗余。 MD-FEC编码流（描述）基于反馈进行调整。 具体地，由供应对等体在每个描述中发送的比特基于其接收对等体中的可用描述的数量来进行调整。 自适应传输消除了原始MD-FEC流（描述）中的不必要的比特，并且显着降低了在提供对等体时消耗的上行链路带宽。 保存的带宽可用于容纳更多视频会话或其他应用程序。

公开(公告)号：US20130054782A1

公开(公告)日：2013-02-28

申请号：US13219581

申请日：2011-08-26

申请人： Cheng Huang ,  David A. Maltz ,  Jin Li ,  Ming Zhang ,  Chao Zhang ,  Keith W. Ross

发明人： Cheng Huang ,  David A. Maltz ,  Jin Li ,  Ming Zhang ,  Chao Zhang ,  Keith W. Ross

IPC分类号： G06F15/173

CPC分类号： H04L61/1511 ,  H04L63/12 ,  H04L63/1408 ,  H04L2463/146

摘要： A plurality of network addresses from a distributed client is obtained, at least a first portion of the obtained network addresses including resolved network address responses to distributed client requests for resolved network addresses corresponding to one or more network location indicators associated with a first web service. Test content is obtained, based on one or more of the network addresses included in the first portion. It is determined whether the obtained test content includes unauthorized content.

摘要翻译： 获得来自分布式客户端的多个网络地址，所获得的网络地址的至少第一部分包括对分配的客户端请求的分辨的网络地址响应，所述解析的网络地址对应于与第一web服务相关联的一个或多个网络位置指示符。 基于包括在第一部分中的一个或多个网络地址获得测试内容。 确定所获得的测试内容是否包括未授权的内容。

公开(公告)号：US08832290B2

公开(公告)日：2014-09-09

申请号：US11678268

申请日：2007-02-23

申请人： Jin Li ,  Cheng Huang ,  Keith W. Ross

发明人： Jin Li ,  Cheng Huang ,  Keith W. Ross

IPC分类号： G06F15/16 ,  H04N7/173

CPC分类号： H04L65/60 ,  H04L47/70 ,  H04L47/722 ,  H04L47/805 ,  H04L65/4084 ,  H04L67/104 ,  H04L67/108 ,  H04L67/1091 ,  H04L67/28 ,  H04L67/2847

摘要： A “Media Sharer” operates within peer-to-peer (P2P) networks to provide a dynamic peer-driven system for streaming high quality multimedia content, such as a video-on-demand (VoD) service, to participating peers while minimizing server bandwidth requirements. In general, the Media Sharer provides a peer-assisted framework wherein participating peers assist the server in delivering on-demand media content to other peers. Participating peers cooperate to provide at least the same quality media delivery service as a pure server-client media distribution. However, given this peer cooperation, many more peers can be served with relatively little increase in server bandwidth requirements. Further, each peer limits its assistance to redistributing only portions of the media content that it also receiving. Peer upload bandwidth for redistribution is determined as a function of surplus peer upload capacity and content need of neighboring peers, with earlier arriving peers uploading content to later arriving peers.

摘要翻译： “媒体分享器”在对等（P2P）网络中运行，以提供动态的对等驱动系统，用于将诸如视频点播（VoD）服务的高质量多媒体内容流向参与对等体，同时最小化服务器 带宽要求。 通常，Media Sharer提供对等辅助框架，其中参与的对等体协助服务器向其他对等体传送点播媒体内容。 参与对方合作，提供与纯服务器 - 客户端媒体分发至少相同质量的媒体传送服务。 然而，鉴于这种对等合作，服务器带宽需求相对较少的许多对等体可以得到满足。 此外，每个对等体限制其援助以仅重新分配它也接收的媒体内容的部分。 用于再分配的同步上传带宽被确定为相邻对等体的剩余对等体上传容量和内容需求的函数，早期到达的对等体将内容上传到稍后到达的对等体。

公开(公告)号：US20100153575A1

公开(公告)日：2010-06-17

申请号：US12336294

申请日：2008-12-16

申请人： Yong LIU ,  Keith W. Ross

发明人： Yong LIU ,  Keith W. Ross

IPC分类号： G06F15/16

CPC分类号： H04L65/4076 ,  H04L65/4084 ,  H04L65/602 ,  H04L65/605 ,  H04L65/80

摘要： View-upload decoupled (“VUD”) peer-to-peer (P2P) video distribution is provided, in which each peer is assigned to one or more channels to upload, with the assignments made independent of what the peer is viewing. For each assigned channel, the peer distributes (that is, uploads) the channel. This effectively creates semi-permanent distribution swarms for each channel, which are formed by peers responsible for uploading that channel. This can minimize problems associated with channel churn because peers may remain in their assigned distribution groups even if they switch channels. To minimize cross-channel overhead associated with VUD P2P video distribution, substream swarming, in which a peer in a distribution swarm only downloads a small portion of the video stream, called a substream, and uploads the substream to multiple viewers, may be provided. To minimize video streaming quality degradation that may occur during a reconfiguration transient period upon sudden and large increases in video download demands for some channel, VUD P2P video distribution may be integrated with tradition ISO P2P video distribution (which is self-adaptive to the sudden increases in channel popularity).

摘要翻译： 提供了视图上传去耦（“VUD”）点对点（P2P）视频分发，其中每个对等体被分配给一个或多个信道进行上传，分配独立于对等体正在观看。 对于每个分配的频道，对等体分发（即上传）频道。 这有效地为每个通道（由负责上传该通道的对等体构成）形成半永久分布群。 这可以最小化与通道流失相关的问题，因为即使切换通道，对等体可能保留在其分配的分配组中。 为了最小化与VUD P2P视频分发相关联的跨信道开销，可以提供分散群中的对等体仅下载视频流的一小部分的称为子流的子流群集，并将子流上载到多个观看者。 为了最大限度地减少在重新配置过渡期间可能发生的视频流质量下降，对于某些频道的视频下载需求突然大幅增加，VUD P2P视频分发可能与传统的ISO P2P视频分发（其自适应突发增加 在渠道流行）。