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1. 发明申请

US20100058405A1 Systems and Methods for Distributing Video on Demand 有权
标题翻译：用于分发视频点播的系统和方法
公开(公告)号：US20100058405A1
公开(公告)日：2010-03-04
申请号：US12201844
申请日：2008-08-29
申请人： Kadangode Ramakrishnan , Rittwik Jana , Divesh Srivastava , Vijay Gopalakrishnan , Samrat Bhattacharjee
发明人： Kadangode Ramakrishnan , Rittwik Jana , Divesh Srivastava , Vijay Gopalakrishnan , Samrat Bhattacharjee
IPC分类号： H04N7/173
CPC分类号： H04N21/458 , H04N7/17318 , H04N21/262 , H04N21/4331 , H04N21/47202 , H04N21/4788 , H04N21/4856 , H04N21/6405 , H04N21/6408
摘要： A method of receiving content includes joining an in-progress multicast stream to receive a first portion of a content. The method further includes sending a request to a peer for a catch-up portion of the content, the request including a deadline for delivery of the content, and receiving the catch-up portion of the content from the peer prior to the deadline.
摘要翻译：接收内容的方法包括加入正在进行的多播流以接收内容的第一部分。所述方法还包括向所述对等体发送对所述内容的追赶部分的请求，所述请求包括用于传送内容的截止日期，以及在截止日期之前从对等体接收内容的追赶部分。

2. 发明申请

US20090063681A1 Systems and methods for distributing video on demand 失效
标题翻译：按需分发视频的系统和方法
公开(公告)号：US20090063681A1
公开(公告)日：2009-03-05
申请号：US11848031
申请日：2007-08-30
申请人： Kadangode Ramakrishnan , Samrat Bhattacharjee , Tae Won Cho , Vijay Gopalakrishnan , Rittwik Jana , Divesh Srivastava
发明人： Kadangode Ramakrishnan , Samrat Bhattacharjee , Tae Won Cho , Vijay Gopalakrishnan , Rittwik Jana , Divesh Srivastava
IPC分类号： G06F15/173
CPC分类号： H04L67/104 , H04L65/4084 , H04L67/108 , H04L67/1091 , H04N7/17318 , H04N21/26616 , H04N21/632
摘要： A method of providing content comprises making the content available on a central server, and surveying a plurality of peers for a portion of the content. The portion of the content from one of the peers is obtained when the portion of the content is available from the one of the peers, and obtained from the central server when the portion of the content is not available from the plurality of peers.
摘要翻译：提供内容的方法包括使内容在中央服务器上可用，以及对一部分内容的多个对等体进行测量。当内容的一部分从对等体中的一个可用时获得来自一个对等体的内容的部分，并且当内容的部分不能从多个对等体获得时从中央服务器获得。

3. 发明授权

US08752100B2 Systems and methods for distributing video on demand 有权
标题翻译：按需分发视频的系统和方法
公开(公告)号：US08752100B2
公开(公告)日：2014-06-10
申请号：US12201844
申请日：2008-08-29
申请人： Kadangode Ramakrishnan , Rittwik Jana , Divesh Srivastava , Vijay Gopalakrishnan , Samrat Bhattacharjee
发明人： Kadangode Ramakrishnan , Rittwik Jana , Divesh Srivastava , Vijay Gopalakrishnan , Samrat Bhattacharjee
IPC分类号： H04N7/173
CPC分类号： H04N21/458 , H04N7/17318 , H04N21/262 , H04N21/4331 , H04N21/47202 , H04N21/4788 , H04N21/4856 , H04N21/6405 , H04N21/6408
摘要： A method of receiving content includes joining an in-progress multicast stream to receive a first portion of a content. The method further includes sending a request to a peer for a catch-up portion of the content, the request including a deadline for delivery of the content, and receiving the catch-up portion of the content from the peer prior to the deadline.
摘要翻译：接收内容的方法包括加入正在进行的多播流以接收内容的第一部分。所述方法还包括向所述对等体发送对所述内容的追赶部分的请求，所述请求包括用于传送内容的截止日期，以及在截止日期之前从对等体接收内容的追赶部分。

4. 发明授权

US08554941B2 Systems and methods for distributing video on demand 失效
公开(公告)号：US08554941B2
公开(公告)日：2013-10-08
申请号：US11848031
申请日：2007-08-30
申请人： Kadangode Ramakrishnan , Samrat Bhattacharjee , Tae Won Cho , Vijay Gopalkrishnan , Rittwik Jana , Divesh Srivastava
发明人： Kadangode Ramakrishnan , Samrat Bhattacharjee , Tae Won Cho , Vijay Gopalkrishnan , Rittwik Jana , Divesh Srivastava
IPC分类号： G06F15/16
CPC分类号： H04L67/104 , H04L65/4084 , H04L67/108 , H04L67/1091 , H04N7/17318 , H04N21/26616 , H04N21/632
摘要： A method of providing content comprises making the content available on a central server, and surveying a plurality of peers for a portion of the content. The portion of the content from one of the peers is obtained when the portion of the content is available from the one of the peers, and obtained from the central server when the portion of the content is not available from the plurality of peers.

5. 发明授权

US07181623B2 Scalable wide-area upload system and method 失效
公开(公告)号：US07181623B2
公开(公告)日：2007-02-20
申请号：US09818940
申请日：2001-03-28
申请人： Leana Golubchik , William C. Cheng , Samir Khuller , Samrat Bhattacharjee , Cheng-Fu Chou
发明人： Leana Golubchik , William C. Cheng , Samir Khuller , Samrat Bhattacharjee , Cheng-Fu Chou
IPC分类号： H04L9/00 , H04L9/32 , G06F7/04 , G06F15/16
CPC分类号： H04L9/3297 , H04L63/126 , H04L67/2804 , H04L67/2857 , H04L67/288 , H04L69/329 , H04L2209/76 , H04L2463/121
摘要： A server/overlay network architecture and related method prevent (i.e., minimize the likelihood of) overloads from many network clients all trying to upload data files to a common destination server on the network at about the same time. Before a client transfers its (his or her) data file to the common network destination, a unique identifier (generally much smaller than the data itself) for the data of that client is generated. The unique identifier, such as a one-way hash function, is transmitted to an authenticator trusted by the common destination. The authenticator time-stamps (i.e., stores time and date) the unique identifier, digitally signs a message incorporating the unique identifier and the time-stamp and sends the message to the client who sent the unique identifier. The client then sends the data file with its time stamp to one of a plurality of upload proxy servers. The proxy server sends a message to the common destination telling it to pick up the data file when ready. The common destination server thus avoids being overloaded by many clients transferring their rather large data files to it at the same time. The common destination server can check the time-stamp and unique identifier to insure that the data has not been altered after the time-stamp.

6. 发明申请

US20090279596A1 Method for encoding frame data 有权
标题翻译：帧数据编码方法
公开(公告)号：US20090279596A1
公开(公告)日：2009-11-12
申请号：US12151815
申请日：2008-05-09
申请人： Lusheng Ji , Samrat Bhattacharjee , Bo Han , Seungjoon Lee , Robert Miller
发明人： Lusheng Ji , Samrat Bhattacharjee , Bo Han , Seungjoon Lee , Robert Miller
IPC分类号： H04B17/00 , H04B3/46 , H04Q1/20
CPC分类号： H04L1/0009 , H04L1/0003 , H04L1/1893 , H04L1/203 , H04L27/2626 , H04L27/2647
摘要： In applications where data is transmitted in frames of symbols and the transmission medium is such that the probability of correct reception of symbols is, on the average, not uniform for different symbols in a frame, transmission of test frames enables creation of information about the different probabilities of correct reception, and that information is employed by the transmitter to control the manner in which symbols are transmitted so as to ameliorate the effects of the different probabilities of correct reception.
摘要翻译：在数据以符号帧发送的应用中，并且传输介质使得符号的正确接收的概率平均对于帧中的不同符号是不均匀的，测试帧的传输能够创建关于不同正确接收的概率，并且该信息被发送机采用以控制符号被发送的方式，以便改善正确接收的不同概率的影响。

7. 发明授权

US08397284B2 Detection of distributed denial of service attacks in autonomous system domains 有权
标题翻译：在自治系统域中检测分布式拒绝服务攻击
公开(公告)号：US08397284B2
公开(公告)日：2013-03-12
申请号：US11624101
申请日：2007-01-17
申请人： Chris Kommareddy , Samrat Bhattacharjee , Mark A. Shayman , Richard La
发明人： Chris Kommareddy , Samrat Bhattacharjee , Mark A. Shayman , Richard La
IPC分类号： G06F7/04
CPC分类号： H04L63/1458 , H04L63/1425
摘要： A denial-of-service network attack detection system is deployable in single-homed and multi-homed stub networks. The detection system maintains state information of flows entering and leaving the stub domain to determine if exiting traffic exceeds traffic entering the system. Monitors perform simple processing tasks on sampled packets at individual routers in the network at line speed and perform more intensive processing at the routers periodically. The monitors at the routers form an overlay network and communicate pertinent traffic state information between nodes. The state information is collected and analyzed to determine the presence of an attack.
摘要翻译：拒绝服务的网络攻击检测系统可部署在单宿主和多宿主存根网络中。检测系统维护进入和离开存根域的流的状态信息，以确定退出流量是否超过进入系统的流量。监视器以线速在网络中的各个路由器上对采样数据包执行简单的处理任务，并在周期性的路由器上进行更密集的处理。路由器上的监控器形成覆盖网络，并在节点之间传递相关的流量状态信息。收集和分析状态信息以确定是否存在攻击。

8. 发明授权

US07940850B2 Method for encoding frame data 有权
标题翻译：帧数据编码方法
公开(公告)号：US07940850B2
公开(公告)日：2011-05-10
申请号：US12151815
申请日：2008-05-09
申请人： Lusheng Ji , Samrat Bhattacharjee , Bo Han , Seungjoon Lee , Robert Miller
发明人： Lusheng Ji , Samrat Bhattacharjee , Bo Han , Seungjoon Lee , Robert Miller
IPC分类号： H04K1/10 , H04L27/28
CPC分类号： H04L1/0009 , H04L1/0003 , H04L1/1893 , H04L1/203 , H04L27/2626 , H04L27/2647
摘要： In applications where data is transmitted in frames of symbols and the transmission medium is such that the probability of correct reception of symbols is, on the average, not uniform for different symbols in a frame, transmission of test frames enables creation of information about the different probabilities of correct reception, and that information is employed by the transmitter to control the manner in which symbols are transmitted so as to ameliorate the effects of the different probabilities of correct reception.
摘要翻译：在数据以符号帧发送的应用中，并且传输介质使得符号的正确接收的概率平均对于帧中的不同符号是不均匀的，测试帧的传输能够创建关于不同正确接收的概率，并且该信息被发送机采用以控制符号被发送的方式，以便改善正确接收的不同概率的影响。

9. 发明申请

US20080028467A1 Detection of Distributed Denial of Service Attacks in Autonomous System Domains 有权
标题翻译：检测自治系统域中分布式拒绝服务攻击
公开(公告)号：US20080028467A1
公开(公告)日：2008-01-31
申请号：US11624101
申请日：2007-01-17
申请人： Chris Kommareddy , Samrat Bhattacharjee , Mark Shayman , Richard La
发明人： Chris Kommareddy , Samrat Bhattacharjee , Mark Shayman , Richard La
IPC分类号： G06F7/04
CPC分类号： H04L63/1458 , H04L63/1425
摘要： A denial-of-service network attack detection system is deployable in single-homed and multi-homed stub networks. The detection system maintains state information of flows entering and leaving the stub domain to determine if exiting traffic exceeds traffic entering the system. Monitors perform simple processing tasks on sampled packets at individual routers in the network at line speed and perform more intensive processing at the routers periodically. The monitors at the routers form an overlay network and communicate pertinent traffic state information between nodes. The state information is collected and analyzed to determine the presence of an attack.
摘要翻译：拒绝服务的网络攻击检测系统可部署在单宿主和多宿主存根网络中。检测系统维护进入和离开存根域的流的状态信息，以确定退出流量是否超过进入系统的流量。监视器以线速在网络中的各个路由器上对采样数据包执行简单的处理任务，并在周期性的路由器上进行更密集的处理。路由器上的监控器形成覆盖网络，并在节点之间传递相关的流量状态信息。收集和分析状态信息以确定是否存在攻击。

10. 发明申请

US20070061586A1 Scalable wide-area upload system and method 审中-公开
标题翻译：可扩展的广域上传系统和方法
公开(公告)号：US20070061586A1
公开(公告)日：2007-03-15
申请号：US11592256
申请日：2006-11-03
申请人： Leana Golubchik , William Cheng , Samir Khuller , Samrat Bhattacharjee , Cheng-Fu Chou
发明人： Leana Golubchik , William Cheng , Samir Khuller , Samrat Bhattacharjee , Cheng-Fu Chou
IPC分类号： H04L9/00
CPC分类号： H04L9/3297 , H04L63/126 , H04L67/2804 , H04L67/2857 , H04L67/288 , H04L69/329 , H04L2209/76 , H04L2463/121
摘要： A server/overlay network architecture and related method prevent (i.e., minimize the likelihood of) overloads from many network clients all trying to upload data files to a common destination server on the network at about the same time. Before a client transfers its (his or her) data file to the common network destination, a unique identifier (generally much smaller than the data itself) for the data of that client is generated. The unique identifier, such as a one-way hash function, is transmitted to an authenticator trusted by the common destination. The authenticator time-stamps (i.e., stores time and date) the unique identifier, digitally signs a message incorporating the unique identifier and the time-stamp and sends the message to the client who sent the unique identifier. The client then sends the data file with its time stamp to one of a plurality of upload proxy servers. The proxy server sends a message to the common destination telling it to pick up the data file when ready. The common destination server thus avoids being overloaded by many clients transferring their rather large data files to it at the same time. The common destination server can check the time-stamp and unique identifier to insure that the data has not been altered after the time-stamp.
摘要翻译：服务器/覆盖网络架构和相关方法防止（即最小化许多网络客户端的重载的可能性），所有这些都试图将数据文件在大约相同的时间上传到网络上的公共目的地服务器。在客户端将其（他或她）的数据文件传输到公共网络目的地之前，生成该客户端的数据的唯一标识符（通常远小于数据本身）。诸如单向散列函数的唯一标识符被发送到由公共目的地信任的认证器。认证者时间戳（即，存储时间和日期）唯一标识符，对包含唯一标识符和时间戳的消息进行数字签名，并将消息发送给发送唯一标识符的客户端。然后，客户端将具有其时间戳的数据文件发送到多个上传代理服务器之一。代理服务器向公共目的地发送消息，告知它在准备好时接收数据文件。因此，公共目的地服务器避免了许多客户端将其相当大的数据文件传输到它的同时过载。公共目的地服务器可以检查时间戳和唯一标识符，以确保在时间戳之后数据未被更改。

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