公开(公告)号：US20080183886A1

公开(公告)日：2008-07-31

申请号：US12020816

申请日：2008-01-28

申请人： Gene Cheung

发明人： Gene Cheung

IPC分类号： G06F15/16

CPC分类号： H04L65/607 ,  H04L29/06027 ,  H04L65/80

摘要： Data paths extending to a first receiver from a plurality of data supply sources are each capable of supplying the same stream data. When providing the stream data to the first receiver rate-distortion of the data paths is optimized. Clocks asynchronous with each other per data path are set so as to attain the rate-distortion optimization.

摘要翻译： 从多个数据供应源延伸到第一接收器的数据路径都能够提供相同的流数据。 当将流数据提供给第一接收机时，优化数据路径的失真。 设置每个数据路径彼此异步的时钟，以实现速率失真优化。

公开(公告)号：US06996618B2

公开(公告)日：2006-02-07

申请号：US09898807

申请日：2001-07-03

申请人： John G. Apostolopoulos ,  Sujoy Basu ,  Gene Cheung ,  Rajendra Kumar ,  Sumit Roy ,  Wai-tan Tan ,  Susie J. Wee ,  Tina Wong ,  Bo Shen

发明人： John G. Apostolopoulos ,  Sujoy Basu ,  Gene Cheung ,  Rajendra Kumar ,  Sumit Roy ,  Wai-tan Tan ,  Susie J. Wee ,  Tina Wong ,  Bo Shen

IPC分类号： G06F15/16

CPC分类号： H04W36/12 ,  H04L67/04 ,  H04L67/14 ,  H04L69/329

摘要： A method for handing off to a second server, in either a fixed or mobile streaming media system, a multiple description streaming session between a first server and either a fixed or mobile client. In one embodiment, the present invention recites selecting a second server to receive a handoff of a multiple description streaming media session between the first server and the client. In this embodiment, the multiple description streaming media session is comprised of a first multiple description bitstream and a second multiple description bitstream. The present embodiment further recites receiving at the second server, the second multiple description bitstream for streaming to the client. This embodiment further recites sending the second multiple description bitstream from the second server to the client.

摘要翻译： 一种在固定或移动流媒体系统中切换到第二服务器的方法，在第一服务器和固定或移动客户端之间的多描述流会话。 在一个实施例中，本发明阐述了选择第二服务器以接收第一服务器和客户端之间的多描述流媒体会话的切换。 在该实施例中，多描述流媒体会话由第一多重描述比特流和第二多个描述比特流组成。 本实施例进一步在第二服务器处接收第二多个描述比特流，以便流式传送到客户端。 该实施例进一步叙述将第二多重描述比特流从第二服务器发送到客户端。

公开(公告)号：US06941378B2

公开(公告)日：2005-09-06

申请号：US09898800

申请日：2001-07-03

申请人： John G. Apostolopoulos ,  Sujoy Basu ,  Gene Cheung ,  Rajendra Kumar ,  Sumit Roy ,  Wai-tan Tan ,  Susie J. Wee ,  Tina Wong ,  Bo Shen

发明人： John G. Apostolopoulos ,  Sujoy Basu ,  Gene Cheung ,  Rajendra Kumar ,  Sumit Roy ,  Wai-tan Tan ,  Susie J. Wee ,  Tina Wong ,  Bo Shen

IPC分类号： H04L12/56 ,  H04L29/06 ,  H04L29/08 ,  H04L29/14 ,  G06F15/16 ,  G06F15/173

CPC分类号： H04L65/4084 ,  H04L29/06027 ,  H04L65/607 ,  H04L69/329 ,  H04L69/40 ,  H04N21/23103 ,  H04N21/234327 ,  H04N21/234381 ,  H04N21/2662 ,  H04N21/41407 ,  H04W4/00 ,  H04W88/08

摘要： A method for assigning servers to provide multiple description bitstreams to a mobile client (in a mobile client environment) or to a fixed client (in a fixed client environment). In one embodiment, the present invention, upon receiving a request from a mobile client to have media data streamed thereto, analyzes a plurality of servers to determine a first candidate server for providing a first multiple description bitstream to the base station along a first path. The present method also determines a second candidate server for providing a second multiple description bitstream to the base station along a second path. The present method then sends a request to the first candidate server to provide the first multiple description bitstream to a mobile client through a base station along the first path, and also sends a request to the second candidate server to provide the second multiple description bitstream to the mobile client through the same base station along a second path. In another embodiment, there are two separate paths from two separate servers to two separate base stations and then from each base station there is a separate path to the mobile client. In still another embodiment, there are two paths from a single server to two separate base stations and then from each base station there is a separate path to the mobile client. In one fixed client embodiment, the present invention is able to assign a plurality of servers to provide a plurality of MD bitstreams to the fixed client.

摘要翻译： 一种用于分配服务器以向移动客户端（在移动客户端环境中）或固定客户端（在固定客户端环境中）提供多个描述比特流的方法。 在一个实施例中，本发明在从移动客户端接收到流媒体数据流的请求时分析多个服务器以确定第一候选服务器，用于沿着第一路径向基站提供第一多个描述比特流。 本方法还确定用于沿着第二路径向基站提供第二多描述比特流的第二候选服务器。 本方法然后向第一候选服务器发送请求，以通过沿着第一路径的基站向移动客户端提供第一多个描述比特流，并且还向第二候选服务器发送请求以将第二多个描述比特流提供给 移动客户端通过相同的基站沿着第二条路径。 在另一个实施例中，存在从两个分离的服务器到两个单独的基站的两个单独的路径，然后从每个基站到达移动客户端的单独的路径。 在另一个实施例中，存在从单个服务器到两个单独基站的两条路径，然后从每个基站到达移动客户端的单独路径。 在一个固定客户端实施例中，本发明能够分配多个服务器以向固定客户端提供多个MD比特流。

公开(公告)号：US20050180415A1

公开(公告)日：2005-08-18

申请号：US10506882

申请日：2003-03-05

申请人： Gene Cheung ,  Takeshi Yoshimura

发明人： Gene Cheung ,  Takeshi Yoshimura

IPC分类号： H04N21/24 ,  H04L1/00 ,  H04L1/18 ,  H04L12/70 ,  H04L12/725 ,  H04L12/801 ,  H04L12/885 ,  H04L12/953 ,  H04L29/14 ,  H04N7/173 ,  H04N19/102 ,  H04N19/134 ,  H04N19/159 ,  H04N19/166 ,  H04N19/169 ,  H04N19/189 ,  H04N19/50 ,  H04N19/625 ,  H04N19/65 ,  H04N19/67 ,  H04N21/23 ,  H04N21/61 ,  H04N21/647 ,  H04W80/06 ,  H04L12/28

CPC分类号： H04N7/17318 ,  H04L1/0006 ,  H04L1/0009 ,  H04L1/0014 ,  H04L1/0019 ,  H04L1/0057 ,  H04L1/16 ,  H04L1/1877 ,  H04L2001/0097 ,  H04N21/2404 ,  H04N21/44209 ,  H04N21/6112 ,  H04N21/6375 ,  H04N21/6437 ,  H04N21/6473

摘要： A medium streaming distribution system reduces effects of packet loss in a network before the packet reaches radio base station. A medium distribution device for packet-transmits via the base station, a medium stream to the network by a real time transmission protocol. A packet analyzer monitors the packet arriving at the radio base station and transmits feedback Information associated with loss of a packet to the medium distribution device. Based on the feedback from a relay device and a terminal device of the medium stream, the transmission rates from the medium distribution device to the relay device and from the relay device to the terminal device are obtained to provide a greater transmission rate in a surplus band for re-transmission or a forward error correction.

摘要翻译： 媒体流分发系统在分组到达无线电基站之前减少网络中分组丢失的影响。 一种用于经由基站进行分组传输的媒体分发设备，通过实时传输协议向网络传输媒体流。 分组分析器监视到达无线电基站的分组，并将与分组丢失相关联的反馈信息发送到媒体分发设备。 基于来自中继设备和媒体流的终端设备的反馈，获得从媒体分配设备到中继设备以及从中继设备到终端设备的传输速率，以便在剩余频带中提供更高的传输速率 用于重新传输或前向纠错。

公开(公告)号：US08531956B2

公开(公告)日：2013-09-10

申请号：US12790814

申请日：2010-05-29

申请人： Jung Gun Lee ,  Gene Cheung ,  Sung-Ju Lee ,  Puneet Sharma

发明人： Jung Gun Lee ,  Gene Cheung ,  Sung-Ju Lee ,  Puneet Sharma

IPC分类号： H04L12/16 ,  H04W4/00 ,  H04W72/00 ,  H04J3/14 ,  G06F15/173

CPC分类号： H04W16/04 ,  H04W28/16 ,  H04W84/12

摘要： Channel assignment for access points (APs) in a wireless network includes determining at least one of a MaxSum and a MaxMin, and determining a channel assignment for the APs based on at least one of the MaxSum and the MaxMin. The MaxSum is a maximization of a system throughput and the system throughput is a sum of throughput of nodes in the network. The MaxMin is a maximization of a minimum throughput of a set of AP-client links in the network. The AP-client link is a link between an AP and a client associated with the AP.

摘要翻译： 无线网络中的接入点（AP）的信道分配包括确定MaxSum和MaxMin中的至少一个，以及基于MaxSum和MaxMin中的至少一个确定AP的信道分配。 MaxSum是系统吞吐量的最大化，系统吞吐量是网络中节点吞吐量的总和。 MaxMin是网络中一组AP客户端链路的最小吞吐量最大化。 AP-client链路是AP与AP关联的客户端之间的链路。

公开(公告)号：US07200402B2

公开(公告)日：2007-04-03

申请号：US09898572

申请日：2001-07-03

申请人： John G. Apostolopoulos ,  Sujoy Basu ,  Gene Cheung ,  Rajendra Kumar ,  Sumit Roy ,  Wai-tan Tan ,  Susie J. Wee ,  Tina Wong ,  Bo Shen

发明人： John G. Apostolopoulos ,  Sujoy Basu ,  Gene Cheung ,  Rajendra Kumar ,  Sumit Roy ,  Wai-tan Tan ,  Susie J. Wee ,  Tina Wong ,  Bo Shen

IPC分类号： H04Q7/20

CPC分类号： H04W36/18 ,  H04B7/022 ,  H04L25/4919 ,  H04W36/08

摘要： A method for performing a soft-handoff in a mobile streaming media system, and a method for performing a hard-handoff in a mobile streaming media system are is disclosed. In the soft-handoff embodiment, the present invention detects that a channel quality between a mobile client and a first base station remains above a drop threshold and that a channel quality between the mobile client and a second base station increases from below to above an add threshold. The present embodiment then sends a first multiple description bitstream from the first base station to the mobile client and sends a complementary second multiple description bitstream from the second base station to the mobile client. This method thereby provides improved utilization of wireless bandwidth during soft-handoffs, in contrast to conventional systems where the same bitstream is transmitted from each base station. In both the cases of soft-handoffs and hard-handoffs, when a mobile client enters a cell whose base station has no free capacity, the base station may prevent call dropping by reducing the number of descriptions being served to the existing clients and thereby providing capacity (at least one description) for the new client. These methods provide improved utilization of wireless bandwidth during soft-handoffs, and reduced probability of service disruption during both soft-handoffs and hard-handoffs.

摘要翻译： 公开了一种用于在移动流媒体系统中执行软切换的方法，以及用于在移动流媒体系统中执行硬切换的方法。 在软切换实施例中，本发明检测到移动客户端与第一基站之间的信道质量保持高于丢弃阈值，并且移动客户端与第二基站之间的信道质量从下至上增加 阈。 本实施例然后将第一多个描述比特流从第一基站发送到移动客户端，并将互补的第二多个描述比特流从第二基站发送到移动客户端。 因此，与从每个基站发送相同比特流的常规系统相比，该方法从而提供了在软切换期间无线带宽的改进的利用。 在软切换和硬切换的情况下，当移动客户端进入其基站没有可用容量的小区时，基站可以通过减少向现有客户端提供的描述的数量来防止呼叫丢弃，从而提供 新客户端的容量（至少一个描述）。 这些方法在软切换期间提供了无线带宽的改进的利用，并且在软切换和硬切换期间降低了服务中断的概率。

公开(公告)号：US07733913B1

公开(公告)日：2010-06-08

申请号：US11496321

申请日：2006-07-31

申请人： Gene Cheung ,  Puneet Sharma ,  Sung-Ju Lee

发明人： Gene Cheung ,  Puneet Sharma ,  Sung-Ju Lee

IPC分类号： H04J3/24

CPC分类号： H04L45/00 ,  H04L45/245

摘要： Data is striped over transmission channels having limited bandwidths and variable delays. Data to be striped over the channels is accessed. An expiration time of at least one packet of the data to be striped is determined. Probabilities of timely receiving the at least one packet are determined using a recursive function and the expiration time and a length of queue storing the at least one packet waiting to be striped. The computed probabilities are stored in a table, and the computed probabilities are retrieved from the table for at least one other packet having the same expiration time and the same queue length. The probabilities are used to map the at least one other packet to at least one of the channels.

摘要翻译： 数据在具有有限带宽和可变延迟的传输信道上划分。 可以访问通过通道分条的数据。 确定要条带化的数据的至少一个分组的到期时间。 使用递归函数和到期时间以及存储至少一个等待被条带化的分组的队列的长度来确定及时接收至少一个分组的概率。 所计算的概率存储在表中，并且从具有相同到期时间和相同队列长度的至少一个其他分组的表中检索计算的概率。 概率用于将至少一个其他分组映射到至少一个信道。

公开(公告)号：US20100002695A1

公开(公告)日：2010-01-07

申请号：US12166998

申请日：2008-07-02

申请人： Gene Cheung

发明人： Gene Cheung

IPC分类号： H04L12/56

CPC分类号： H04L65/4076 ,  H04L45/16 ,  H04L65/80

摘要： In a method of distributing packets from a multimedia source to a plurality of nodes, in at least one of the plurality of nodes, a packet stream is received from the multimedia source and a received packet is outputted. In addition, in at least another one of the plurality of nodes, the packet stream is received from the multimedia source, a packet outputted by the at least one of the plurality of nodes is received, determination as to whether a packet is missing from the packet stream received from the multimedia source is made, a determination as to whether the packet outputted by the at least one other node comprises a missing packet is made, and the packet outputted by the at least one other node is stored in response to the outputted packet comprising a missing packet.

摘要翻译： 在从多媒体源向多个节点分发分组的方法中，在多个节点中的至少一个节点中，从多媒体源接收分组流，并且输出接收的分组。 此外，在多个节点中的至少另一个节点中，从多媒体源接收分组流，由多个节点中的至少一个节点输出的分组被接收，关于分组流是否丢失的确定 进行从多媒体源接收到的分组流，确定由至少一个其他节点输出的分组是否包括丢失分组，并且响应于输出而存储由至少一个其他节点输出的分组 分组包括丢失的分组。

公开(公告)号：US07443797B2

公开(公告)日：2008-10-28

申请号：US10506882

申请日：2003-03-05

申请人： Gene Cheung ,  Takeshi Yoshimura

发明人： Gene Cheung ,  Takeshi Yoshimura

IPC分类号： H04L1/00

CPC分类号： H04N7/17318 ,  H04L1/0006 ,  H04L1/0009 ,  H04L1/0014 ,  H04L1/0019 ,  H04L1/0057 ,  H04L1/16 ,  H04L1/1877 ,  H04L2001/0097 ,  H04N21/2404 ,  H04N21/44209 ,  H04N21/6112 ,  H04N21/6375 ,  H04N21/6437 ,  H04N21/6473

摘要： A medium streaming distribution system reduces effects of packet loss in a network before the packet reaches radio base station. A medium distribution device for packet-transmits via the base station, a medium stream to the network by a real time transmission protocol. A packet analyzer monitors the packet arriving at the radio base station and transmits feedback information associated with loss of a packet to the medium distribution device. Based on the feedback from a relay device and a terminal device of the medium stream, the transmission rates from the medium distribution device to the relay device and from the relay device to the terminal device are obtained to provide a greater transmission rate in a surplus band for re-transmission or a forward error correction.

摘要翻译： 媒体流分发系统在分组到达无线电基站之前减少网络中分组丢失的影响。 一种用于经由基站进行分组传输的媒体分发设备，通过实时传输协议向网络传输媒体流。 分组分析器监视到达无线电基站的分组，并将与分组丢失相关联的反馈信息发送到媒体分发设备。 基于来自中继设备和媒体流的终端设备的反馈，获得从媒体分配设备到中继设备以及从中继设备到终端设备的传输速率，以便在剩余频带中提供更高的传输速率 用于重新传输或前向纠错。

公开(公告)号：US07372820B1

公开(公告)日：2008-05-13

申请号：US10977147

申请日：2004-10-29

申请人： Gene Cheung ,  Puneet Sharma ,  Sung-Ju Lee

发明人： Gene Cheung ,  Puneet Sharma ,  Sung-Ju Lee

IPC分类号： H04J1/16 ,  H04J3/16

CPC分类号： H04L1/06 ,  H04L1/0009 ,  H04L1/0018 ,  H04L1/1812 ,  H04L25/14 ,  H04L2001/0096

摘要： Embodiments of the present invention include a method for striping data comprising accessing data to be striped over a plurality of wireless channels, accessing time sensitivity information associated with the data and mapping the data to the plurality of wireless channels wherein the time sensitivity information is used determine the mapping. The method further includes striping the data over the plurality of wireless channels.

摘要翻译： 本发明的实施例包括一种用于条带化数据的方法，包括访问要在多个无线信道上划分的数据，访问与数据相关联的时间灵敏度信息，并将数据映射到多个无线信道，其中使用时间灵敏度信息来确定 映射。 该方法还包括在多个无线信道上划分数据。