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：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：US06757735B2

公开(公告)日：2004-06-29

申请号：US09898643

申请日：2001-07-03

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

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

IPC分类号： G06F1516

CPC分类号： H04N7/17336 ,  G21C3/332 ,  G21C3/34 ,  G21Y2002/302 ,  H04L29/06027 ,  H04L65/607 ,  H04L67/04 ,  H04N21/222 ,  H04N21/234327 ,  H04N21/41407 ,  H04N21/6131 ,  H04W28/14 ,  Y02E30/40

摘要： A method and system for streaming media data to a fixed client and/or a mobile client. In one method embodiment, the present invention recites encoding media data to be streamed to a client into a first multiple description bitstream and into a second multiple description bitstream. The present method then determines the appropriate plurality of servers from a network of servers onto which the first and second multiple description bitstreams should be distributed. The present embodiment then recites distributing the first and second multiple description bitstreams to the appropriate plurality of servers positioned at intermediate nodes throughout a network such that a client is provided with access to the media data via a plurality of transmission paths. The present method is also well suited to redistribution of multiple description bitstreams to servers based upon time-varying demand, client movement, and the like.

摘要翻译： 一种用于将媒体数据流传输到固定客户端和/或移动客户端的方法和系统。 在一个方法实施例中，本发明将要流式传输到客户端的编码媒体数据描述为第一多重描述比特流并转换成第二多描述比特流。 本方法然后从应该分发第一和第二多个描述比特流的服务器网络中确定适当的多个服务器。 本实施例然后将第一和第二多个描述比特流分发到位于整个网络中的中间节点处的适当的多个服务器，从而经由多个传输路径向客户端提供对媒体数据的访问。 本方法还非常适合于基于时变需求，客户端移动等将多个描述比特流重新分配给服务器。

公开(公告)号：US07451205B2

公开(公告)日：2008-11-11

申请号：US09969474

申请日：2001-10-01

申请人： Gene Cheung ,  Tina Wong ,  Susie J. Wee

发明人： Gene Cheung ,  Tina Wong ,  Susie J. Wee

IPC分类号： G06F15/173 ,  G06F15/16

CPC分类号： H04L65/607 ,  G01S5/0009 ,  H04L29/06 ,  H04L29/06027 ,  H04L67/18 ,  H04W4/00 ,  H04W40/00 ,  H04W64/00

摘要： A method and system for streaming media data to a mobile client device. Using information such as the previous locations of the mobile client device, a prediction is made of a future location of the client device. A server servicing the predicted location, such as the server closest to the predicted location, is identified. This server is informed of the impending arrival of the mobile device into the area serviced by the server. The server can thus obtain ahead of time the media stream needed for the client, so that the data are available to the client without disruption when the client moves to the predicted location. To account for uncertainty in the prediction, the data can also be directed to other servers that can service the predicted location.

摘要翻译： 一种用于将媒体数据流传输到移动客户端设备的方法和系统。 使用诸如移动客户端设备的先前位置的信息，预测客户端设备的未来位置。 识别服务于预测位置的服务器，例如最接近预测位置的服务器。 该服务器被通知移动设备即将到达服务器所服务的区域。 因此，服务器可以提前获得客户端所需的媒体流，以便当客户端移动到预测位置时，数据可供客户端使用，而不会中断。 为了解决预测中的不确定性，数据也可以指向可以服务于预测位置的其他服务器。

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：US08090761B2

公开(公告)日：2012-01-03

申请号：US10195078

申请日：2002-07-12

申请人： John G. Apostolopoulos ,  Wai-tian Tan ,  Susie J. Wee

发明人： John G. Apostolopoulos ,  Wai-tian Tan ,  Susie J. Wee

IPC分类号： G06F15/16

CPC分类号： H04N7/165 ,  H04L29/06027 ,  H04L65/4084 ,  H04L65/607 ,  H04L67/2814 ,  H04L67/2823 ,  H04N21/2181 ,  H04N21/23103 ,  H04N21/8456

摘要： A method and system thereof for distributing media data are described. A media segment, selected from a plurality of media segments stored on another node, is received. The media segment includes a portion of an item of media content. The item of media content is segmented according to segmentation characteristics. The media segment is stored in lieu of storing the item of media content in its entirety. The media segment can be forwarded to other nodes.

摘要翻译： 描述了用于分发媒体数据的方法和系统。 从存储在另一个节点上的多个媒体段中选择的媒体段被接收。 媒体片段包括媒体内容项的一部分。 根据分割特征对媒体内容进行细分。 存储介质段以代替将媒体内容的项目全部存储。 媒体片段可以转发到其他节点。

公开(公告)号：US20080253372A1

公开(公告)日：2008-10-16

申请号：US11787609

申请日：2007-04-16

申请人： Carri Chan ,  Susie J. Wee ,  John G. Apostolopoulos

发明人： Carri Chan ,  Susie J. Wee ,  John G. Apostolopoulos

IPC分类号： H04L12/28

CPC分类号： H04L12/66

摘要： Scheduling packet transmission. A plurality of data packets is received, wherein at least a portion of the plurality of data packets is associated with one media unit and comprises different quality information. Profit-to-size ratios or distortion-to-size ratios for the data packets are determined. A plurality of schedules of the data packets are determined utilizing dynamic programming for a plurality of data rates based at least in part on the profit-to-size ratios or distortion-to-size ratios.

摘要翻译： 调度包传输。 接收多个数据分组，其中多个数据分组的至少一部分与一个媒体单元相关联并且包括不同的质量信息。 确定数据包的利率至尺寸比或失真到尺寸比。 使用至少部分地基于利润大小比或失真尺寸比率的多个数据速率的动态规划来确定数据分组的多个时间表。

公开(公告)号：US07349539B2

公开(公告)日：2008-03-25

申请号：US09972229

申请日：2001-10-04

申请人： Susie J. Wee ,  John G. Apostolopoulos

发明人： Susie J. Wee ,  John G. Apostolopoulos

IPC分类号： H04K1/06

CPC分类号： H04L65/607 ,  H04L63/0428 ,  H04N7/167 ,  H04N19/20 ,  H04N19/37 ,  H04N19/40

摘要： A device and method thereof for encoding and encrypting data. The device includes a segmenter adapted to receive the data and segment at least a portion of the data into regions, a scalable encoder adapted to scalably encode at least one of the regions into scalably encoded data, and a progressive encrypter adapted to progressively encrypt at least a portion of the scalably encoded data into progressively encrypted scalably encoded data. In one embodiment, progressively encrypted scalably encoded data are provided to a packetizer in real time. In another embodiment, the device includes a storage unit adapted to store progressively encrypted scalably encoded data. In this latter embodiment, data can then be extracted from storage and provided to a packetizer.

摘要翻译： 一种用于对数据进行编码和加密的装置及其方法。 所述设备包括适于接收所述数据并将所述数据的至少一部分划分为区域的分段器，适于将所述区域中的至少一个可缩放地编码为可缩放编码数据的可伸缩编码器，以及适于逐渐加密的渐进加密器 可扩展编码的数据的一部分被逐渐加密的可缩放编码的数据。 在一个实施例中，逐行加密的可扩展编码数据被实时地提供给打包器。 在另一个实施例中，该设备包括适于存储逐渐加密的可缩放编码数据的存储单元。 在后一实施例中，然后可以从存储器提取数据并将其提供给打包器。

公开(公告)号：US6104441A

公开(公告)日：2000-08-15

申请号：US69596

申请日：1998-04-29

申请人： Susie J. Wee ,  Bhaskaran Vasudev

发明人： Susie J. Wee ,  Bhaskaran Vasudev

IPC分类号： G06T9/00 ,  G11B27/034 ,  G11B27/036 ,  H04N7/26 ,  H04N21/234 ,  H04N21/2343 ,  H04N21/238 ,  H04N21/44 ,  H04N7/12 ,  G11B27/00 ,  H04N5/917 ,  H04N11/02

CPC分类号： G11B27/034 ,  G11B27/036 ,  H04N19/40 ,  H04N21/23424 ,  H04N21/2343 ,  H04N21/238 ,  H04N21/44016 ,  G11B2220/2512

摘要： This disclosure provides for an image editing system that permits manipulation of compressed image formats without full decompression to the image domain. In particular, an editor manipulates discrete cosine transform ("DCT") coefficients for a dependent frame in a compressed image sequence to incorporate DCT representations of anchor frames upon which the dependent frame depends. Once converted, the frame can simply be reordered in the compressed domain without violating temporal dependencies, subject to bit rate matching. In one embodiment, an image sequence can be cut to leave remaining image frames which are then altered, so as to eliminate temporal dependencies upon eliminated frames. In another embodiment, an image sequence can be processed in the compressed domain for reverse-play. The editor provided by this disclosure permits real-time compressed domain editing applications, with reduced requirements for computational bandwidth.

摘要翻译： 本公开提供了一种图像编辑系统，其允许对压缩图像格式进行处理，而不对图像域进行完全解压缩。 特别地，编辑器操纵压缩图像序列中的依赖帧的离散余弦变换（“DCT”）系数，以合并从属帧所依赖的锚帧的DCT表示。 一旦转换，帧可以简单地在压缩域中重新排序，而不违反时间依赖性，需要进行比特率匹配。 在一个实施例中，可以切割图像序列以留下随后被改变的剩余图像帧，以便消除对消除的帧的时间依赖性。 在另一个实施例中，可以在压缩域中处理图像序列用于反向播放。 本公开提供的编辑器允许实时压缩域编辑应用，对计算带宽的要求降低。

公开(公告)号：US08027635B2

公开(公告)日：2011-09-27

申请号：US10153095

申请日：2002-05-22

申请人： Susie J. Wee ,  John Apostolopoulos ,  Marc P. Schuyler ,  Jason Brown

发明人： Susie J. Wee ,  John Apostolopoulos ,  Marc P. Schuyler ,  Jason Brown

IPC分类号： H04B7/15

CPC分类号： H04W88/04 ,  H04L12/1403 ,  H04W4/24

摘要： A portable wireless system is described. The portable wireless system has a controller that is operable to selectively configure the portable wireless system as a personal electronic appliance or a third party wireless repeater that is configured to relay wireless signals between a third party electronic appliance and a wireless network. Accordingly, the portable wireless system (e.g., a cellular telephone, a pager or a personal digital assistant) may act as a wireless repeater for third party wireless communications when the portable wireless system otherwise is not in use. In this way, the portable wireless system increases the utilization of existing wireless network infrastructures (e.g., a cellular telephone network) by making one or more unused wireless channels available to other devices. A novel incentives-based business model that encourages owners of portable electronic appliances to fully utilize existing wireless network capacity also is described.

摘要翻译： 描述了便携式无线系统。 便携式无线系统具有控制器，其可操作以选择性地将便携式无线系统配置为个人电子设备或被配置为在第三方电子设备和无线网络之间中继无线信号的第三方无线中继器。 因此，便携式无线系统（例如，蜂窝电话，寻呼机或个人数字助理）可以在便携式无线系统不使用时用作用于第三方无线通信的无线中继器。 以这种方式，通过使一个或多个未使用的无线信道可用于其他设备，便携式无线系统增加了现有无线网络基础设施（例如蜂窝电话网络）的利用率。 还描述了一种鼓励商业模式，鼓励便携式电子设备的所有者充分利用现有的无线网络容量。