专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20090327842A1 RECOVERY FROM BURST PACKET LOSS IN INTERNET PROTOCOL BASED WIRELESS NETWORKS USING STAGGERCASTING AND CROSS-PACKET FORWARD ERROR CORRECTION 有权
标题翻译：基于互联网协议的无线网络中的BURTS分组丢包恢复使用STAGGERCASTING和CROSS-PACKET FORMARD ERROR CORRECTION
公开(公告)号：US20090327842A1
公开(公告)日：2009-12-31
申请号：US12309507
申请日：2006-07-25
申请人： Hang Liu , Liqiao Han , Mingquan Wu , Dekai Li , Kumar Ramaswamy
发明人： Hang Liu , Liqiao Han , Mingquan Wu , Dekai Li , Kumar Ramaswamy
IPC分类号： H03M13/00 , G06F15/16 , G06F11/10
CPC分类号： H04L1/0042 , H03M13/05 , H03M13/154 , H03M13/6312 , H03M13/6527 , H04L1/0031 , H04L1/0041 , H04L1/0045 , H04L1/0047 , H04L1/0057 , H04L1/0075 , H04L1/0079 , H04L1/008 , H04L1/0083 , H04L12/18 , H04L65/4076 , H04N19/164 , H04N19/61 , H04N19/89 , H04N21/2381 , H04N21/26275 , H04N21/41407 , H04N21/4382 , H04N21/4425 , H04N21/6437 , H04W80/04
摘要： A method and system for transmitting data are described including packetizing the data, performing forward error correction (FEC) encoding on the packetized data in order to generate a parity packet, appending FEC information as padding to the end of payload data of the packetized data and transmitting the packetized data and the at least one parity packet. Also described are a method and system for recovering from loss of a packet including receiving a data packet, receiving a parity packet, buffering the received data packet, detecting packet loss, forward error correction decoding the parity packet to recover from packet loss using forward error correction information extracted from the data packet and from the parity packet and forwarding the recovered packet via an internal socket. Also described is a method for staggercasting.
摘要翻译：描述了用于发送数据的方法和系统，包括对数据进行打包，对分组化数据执行前向纠错（FEC）编码，以便生成奇偶分组，将FEC信息作为填充附加到分组化数据的有效载荷数据的末尾; 发送分组化数据和至少一个奇偶校验分组。还描述了一种用于从数据包丢失中恢复的方法和系统，包括接收数据分组，接收奇偶分组，缓冲接收到的数据分组，检测分组丢失，前向纠错解码奇偶分组，以使用前向误差从分组丢失中恢复从数据分组和奇偶分组提取的修正信息，并通过内部套接字转发恢复的分组。还描述了一种交错广播的方法。

2. 发明授权

US08732559B2 Recovery from burst packet loss in internet protocol based wireless networks using staggercasting and cross-packet forward error correction 有权
标题翻译：基于互联网协议的无线网络使用交错和交叉分组前向纠错从突发数据包丢失中恢复
公开(公告)号：US08732559B2
公开(公告)日：2014-05-20
申请号：US12309507
申请日：2006-07-25
申请人： Hang Liu , Liqiao Han , Mingquan Wu , Dekai Li , Kumar Ramaswamy
发明人： Hang Liu , Liqiao Han , Mingquan Wu , Dekai Li , Kumar Ramaswamy
IPC分类号： H03M13/00
CPC分类号： H04L1/0042 , H03M13/05 , H03M13/154 , H03M13/6312 , H03M13/6527 , H04L1/0031 , H04L1/0041 , H04L1/0045 , H04L1/0047 , H04L1/0057 , H04L1/0075 , H04L1/0079 , H04L1/008 , H04L1/0083 , H04L12/18 , H04L65/4076 , H04N19/164 , H04N19/61 , H04N19/89 , H04N21/2381 , H04N21/26275 , H04N21/41407 , H04N21/4382 , H04N21/4425 , H04N21/6437 , H04W80/04
摘要： A method and system for transmitting data are described including packetizing the data, performing forward error correction (FEC) encoding on the packetized data in order to generate a parity packet, appending FEC information as padding to the end of payload data of the packetized data and transmitting the packetized data and the at least one parity packet. Also described are a method and system for recovering from loss of a packet including receiving a data packet, receiving a parity packet, buffering the received data packet, detecting packet loss, forward error correction decoding the parity packet to recover from packet loss using forward error correction information extracted from the data packet and from the parity packet and forwarding the recovered packet via an internal socket. Also described is a method for staggercasting.
摘要翻译：描述了用于发送数据的方法和系统，包括对数据进行打包，对分组化数据执行前向纠错（FEC）编码，以便生成奇偶分组，将FEC信息作为填充附加到分组化数据的有效载荷数据的末尾; 发送分组化数据和至少一个奇偶校验分组。还描述了一种用于从数据包丢失中恢复的方法和系统，包括接收数据分组，接收奇偶分组，缓冲接收到的数据分组，检测分组丢失，前向纠错解码奇偶分组，以使用前向误差从分组丢失中恢复从数据分组和奇偶分组提取的修正信息，并通过内部套接字转发恢复的分组。还描述了一种交错广播的方法。

3. 发明申请

US20110013511A1 End-to-end pattern classification based congestion detection using SVM 审中-公开
标题翻译：使用SVM进行端到端模式分类的拥塞检测
公开(公告)号：US20110013511A1
公开(公告)日：2011-01-20
申请号：US12803969
申请日：2010-07-09
申请人： Dekai LI , Mingquan Wu , Kumar Ramaswamy
发明人： Dekai LI , Mingquan Wu , Kumar Ramaswamy
IPC分类号： H04J3/14
CPC分类号： H04L47/11
摘要： Because packets dropped due to network congestion cannot reach the intended receiver whereas corrupted packets can still be received, the reception status of multiple packets is different for congested and non-congested paths. This difference reflects a spatial variation in the received data stream that is indicative of congestion. Network congestion detection is described that treats the reception status of sequences of multiple packets as patterns and converts the problem of congestion detection into a two-class pattern classification problem. A Support Vector Machine (SVM) classifier is trained to classify the reception status of sequences of packets as being indicative or not of network congestion. If network congestion is detected, congestion control measures can then be taken. Extensive simulations demonstrate high detection accuracy under different network parameters.
摘要翻译：因为由于网络拥塞而丢包的分组不能达到预期的接收机，而仍然可以接收到损坏的分组，所以对于拥塞和非拥塞的路径，多个分组的接收状态是不同的。该差异反映了指示拥塞的接收数据流中的空间变化。描述了将多个分组的序列的接收状态视为模式的网络拥塞检测，并将拥塞检测的问题转换为两类模式分类问题。对支持向量机（SVM）分类器进行训练，将分组序列的接收状态分类为网络拥塞的指示。如果检测到网络拥塞，则可以采取拥塞控制措施。广泛的仿真表明在不同网络参数下的高检测精度。

4. 发明授权

US08189659B2 Cross-layer optimization for scalable video multicast over IEEE 802.11 wireless local area networks 有权
标题翻译：通过IEEE 802.11无线局域网进行可扩展视频多播的跨层优化
公开(公告)号：US08189659B2
公开(公告)日：2012-05-29
申请号：US11990294
申请日：2005-08-30
申请人： Liqiao Han , Hang Liu , Kumar Ramaswamy
发明人： Liqiao Han , Hang Liu , Kumar Ramaswamy
IPC分类号： H04N7/12
CPC分类号： H04N21/6405 , H04L1/0007 , H04L1/0009 , H04L1/0014 , H04L2001/0093 , H04N19/115 , H04N19/154 , H04N19/166 , H04N19/187 , H04N19/34 , H04N19/89 , H04N21/234327 , H04N21/2662 , H04N21/43637 , H04N21/440227 , H04N21/6131
摘要： A system and method for transmitting video signals to a plurality of receivers in a multicast session, including controlling and adapting coding, transmission and protection schemes of a plurality of layers of a network protocol stack are described.
摘要翻译：描述了一种用于在多播会话中向多个接收机发送视频信号的系统和方法，包括控制和适应网络协议栈的多个层的编码，传输和保护方案。

5. 发明申请

US20090219990A1 Cross-Layer Optimization for Scalable Video Multicast over IEEE 802.11 Wireless Local Area Networks 有权
标题翻译： IEEE 802.11无线局域网上可扩展视频组播的跨层优化
公开(公告)号：US20090219990A1
公开(公告)日：2009-09-03
申请号：US11990294
申请日：2005-08-30
申请人： Liqiao Han , Hang Liu , Kumar Ramaswamy
发明人： Liqiao Han , Hang Liu , Kumar Ramaswamy
IPC分类号： H04N7/12 , H03M13/00
CPC分类号： H04N21/6405 , H04L1/0007 , H04L1/0009 , H04L1/0014 , H04L2001/0093 , H04N19/115 , H04N19/154 , H04N19/166 , H04N19/187 , H04N19/34 , H04N19/89 , H04N21/234327 , H04N21/2662 , H04N21/43637 , H04N21/440227 , H04N21/6131
摘要： A system and method for transmitting video signals to a plurality of receivers in a multicast session, including controlling and adapting coding, transmission and protection schemes of a plurality of layers of a network protocol stack are described.
摘要翻译：描述了一种用于在多播会话中向多个接收机发送视频信号的系统和方法，包括控制和适应网络协议栈的多个层的编码，传输和保护方案。

6. 发明申请

US20090319845A1 Seamless Handover of Multicast Sessions in Internet Protocol Based Wireless Networks Using Staggercasting 有权
标题翻译：基于互联网协议的无线网络中组播会话的无缝切换使用交错广播
公开(公告)号：US20090319845A1
公开(公告)日：2009-12-24
申请号：US12226799
申请日：2006-04-29
申请人： Hang Liu , Kumar Ramaswamy
发明人： Hang Liu , Kumar Ramaswamy
IPC分类号： H04L1/00 , G06F11/07 , H03M13/05 , G06F11/10
CPC分类号： H03M13/3761 , H04L1/0002 , H04L1/1819 , H04L2001/0093
摘要： A method and apparatus are described for recovering from loss of an original data packet, including detecting data packet loss, joining a delayed multicast group, receiving a delayed data packet and using the delayed data packet to recover the original data packet that was lost. The delayed data packet is one of a copy of the original data packet, a copy of the original data packet encoded at a lower bit rate or a parity packet. Also described are a method and apparatus for staggercasting including encoding and compressing a first data sequence, packetizing the compressed encoded data sequence to form a data packet, multicasting the data packet to a first multicast group, encoding and compressing a second data sequence, packetizing the compressed encoded second data sequence to form a packet and multicasting the packet delayed by an offset time to a second multicast group.
摘要翻译：描述了用于从原始数据分组丢失中恢复的方法和装置，包括检测数据分组丢失，加入延迟的多播组，接收延迟的数据分组，并使用延迟的数据分组来恢复丢失的原始数据分组。延迟的数据分组是原始数据分组的副本之一，以较低比特率编码的原始数据分组的副本或奇偶校验分组。还描述了一种用于交错广播的方法和装置，包括对第一数据序列进行编码和压缩，将压缩的编码数据序列打包以形成数据分组，将数据分组多播到第一多播组，对第二数据序列进行编码和压缩，压缩编码的第二数据序列以形成分组，并且将延迟偏移时间的分组多播到第二多播组。

7. 发明授权

US08234547B2 Seamless handover of multicast sessions in internet protocol based wireless networks using staggercasting 有权
标题翻译：基于互联网协议的无线网络中组播会话的无缝切换使用交错
公开(公告)号：US08234547B2
公开(公告)日：2012-07-31
申请号：US12226799
申请日：2006-04-29
申请人： Hang Liu , Kumar Ramaswamy
发明人： Hang Liu , Kumar Ramaswamy
IPC分类号： H03M13/00
CPC分类号： H03M13/3761 , H04L1/0002 , H04L1/1819 , H04L2001/0093
摘要： A method and apparatus are described for recovering from loss of an original data packet, including detecting data packet loss, joining a delayed multicast group, receiving a delayed data packet and using the delayed data packet to recover the original data packet that was lost. The delayed data packet is one of a copy of the original data packet, a copy of the original data packet encoded at a lower bit rate or a parity packet. Also described are a method and apparatus for staggercasting including encoding and compressing a first data sequence, packetizing the compressed encoded data sequence to form a data packet, multicasting the data packet to a first multicast group, encoding and compressing a second data sequence, packetizing the compressed encoded second data sequence to form a packet and multicasting the packet delayed by an offset time to a second multicast group.
摘要翻译：描述了用于从原始数据分组丢失中恢复的方法和装置，包括检测数据分组丢失，加入延迟的多播组，接收延迟的数据分组，并使用延迟的数据分组来恢复丢失的原始数据分组。延迟的数据分组是原始数据分组的副本之一，以较低比特率编码的原始数据分组的副本或奇偶校验分组。还描述了一种用于交错广播的方法和装置，包括对第一数据序列进行编码和压缩，将压缩的编码数据序列打包以形成数据分组，将数据分组多播到第一多播组，对第二数据序列进行编码和压缩，压缩编码的第二数据序列以形成分组，并且将延迟偏移时间的分组多播到第二多播组。

8. 发明授权

US08451762B2 Method and apparatus for reliably delivering multicast data 有权
标题翻译：用于可靠地传送组播数据的方法和装置
公开(公告)号：US08451762B2
公开(公告)日：2013-05-28
申请号：US12227550
申请日：2006-06-27
申请人： Hang Liu , Kumar Ramaswamy , Jill MacDonald Boyce
发明人： Hang Liu , Kumar Ramaswamy , Jill MacDonald Boyce
IPC分类号： H04H20/71
CPC分类号： H04L12/66 , H04L1/0001 , H04L12/1863 , H04L29/12349 , H04L45/00 , H04L45/16 , H04L47/14 , H04L47/15 , H04L61/2507 , H04L65/4076 , H04L2001/0093
摘要： A method and apparatus are described including mapping a multicast connection to a unicast uniform resource identifier, establishing a state for a multicast-to-unicast conversion, allocating ports, receiving multicast addressed data packets and converting the multicast addressed data packets to unicast addressed data the packets.
摘要翻译：描述了一种方法和装置，包括将多播连接映射到单播统一资源标识符，建立多播到单播转换的状态，分配端口，接收组播寻址数据分组，以及将多播寻址数据分组转换为单播寻址数据数据包

9. 发明申请

US20090147718A1 Method and Apparatus for Reliably Delivering Multicast Data 有权
标题翻译：可靠地提供组播数据的方法和设备
公开(公告)号：US20090147718A1
公开(公告)日：2009-06-11
申请号：US12227550
申请日：2006-06-27
申请人： Hang Liu , Kumar Ramaswamy , Jill MacDonald Boyce
发明人： Hang Liu , Kumar Ramaswamy , Jill MacDonald Boyce
IPC分类号： H04L12/56 , H04H20/71
CPC分类号： H04L12/66 , H04L1/0001 , H04L12/1863 , H04L29/12349 , H04L45/00 , H04L45/16 , H04L47/14 , H04L47/15 , H04L61/2507 , H04L65/4076 , H04L2001/0093
摘要： A method and apparatus are described including mapping a multicast connection to a unicast uniform resource identifier, establishing a state for a multicast-to-unicast conversion, allocating ports, receiving multicast addressed data packets and converting the multicast addressed data packets to unicast addressed data the packets.
摘要翻译：描述了一种方法和装置，包括将多播连接映射到单播统一资源标识符，建立多播到单播转换的状态，分配端口，接收组播寻址数据分组，以及将多播寻址数据分组转换为单播寻址数据数据包

10. 发明授权

US08782723B2 Method and apparatus for power savings in staggercasting 有权
标题翻译：交错节能方法和装置
公开(公告)号：US08782723B2
公开(公告)日：2014-07-15
申请号：US12736631
申请日：2008-05-02
申请人： Kumar Ramaswamy
发明人： Kumar Ramaswamy
IPC分类号： H04N7/173 , H04N21/443 , H04N21/4402 , H04N21/442 , H04N5/63 , H04N21/262 , H04N21/434
CPC分类号： H04N21/434 , H04N5/63 , H04N21/26275 , H04N21/440263 , H04N21/44209 , H04N21/443 , H04N21/4436
摘要： A method and apparatus for saving power in a receiver includes a power savings mode selector for enabling a user input power savings mode or an automatic power savings mode based on detected battery life. When in power savings mode, a lower resolution time-advanced stream is selected and processed. The normal stream (generally at a higher resolution) is not decoded thereby requiring less power at the receiver decoder.
摘要翻译：用于在接收机中节省电力的方法和装置包括：功率节省模式选择器，用于基于检测到的电池寿命来实现用户输入节电模式或自动省电模式。在省电模式下，选择并处理较低分辨率的时间先进流。正常流（通常以更高分辨率）不被解码，从而在接收机解码器处需要更少的功率。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式