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公开(公告)号：US08677220B2
公开(公告)日：2014-03-18
申请号：US13129015
申请日：2009-11-24
CPC分类号： H04L1/0057 , H04L1/12
摘要： The present invention relates to a new error control paradigm in a packet switched network that is particularly advantageous for multicast transmission.A transmission Status Vector TSV (T) is updated at the sender side whenever a new outgoing data packet (Dj−1) is scheduled for transmission. A corresponding Reception status Vector RSV (R) is similarly updated at the receive side whenever a new incoming and correctly indexed data packet (Dj−1) is validly received.As soon as a missing or corrupted data packet (Dj) is detected, the update of the RSV is suspended. A request is then sent to the sender to get the current Tsv's value, or a part thereof. The erroneous data packet is then recovered from the current TSV's value (Sk,m), from the lastly updated RSV's value (Sj−1), and from otherwise validly received data packets (Dj+1, . . . , Dk).The present invention more specifically relates to a transmitting unit (100) and a receiving unit (200) implementing that paradigm, and correspondingly to a method for protecting a flow of indexed data packets against data lost or data corruption, and a method for recovering a missing or corrupted data packet within a flow of indexed data packets.
摘要翻译： 本发明涉及分组交换网络中对组播传输特别有利的新的错误控制范例。 每当新的输出数据分组（Dj-1）被调度用于传输时，在发送器侧更新传输状态向量TSV（T）。 无论何时有效地接收新的传入和正确索引的数据分组（Dj-1），在接收侧类似地更新对应的接收状态向量RSV（R）。 一旦检测到丢失或损坏的数据包（Dj），则RSV的更新被暂停。 然后，向发送方发送请求以获得当前的Tsv值或其一部分。 然后从最后更新的RSV值（Sj-1）和其他有效接收的数据分组（Dj + 1，...，Dk）从当前TSV值（Sk，m）恢复错误的数据分组。 本发明更具体地涉及实现该范例的发送单元（100）和接收单元（200），并且相应于用于保护索引数据分组的数据流免遭数据丢失或数据损坏的方法，以及用于恢复 在索引数据包流中丢失或损坏的数据包。
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公开(公告)号：US20110258519A1
公开(公告)日：2011-10-20
申请号：US13129015
申请日：2009-11-24
IPC分类号： G06F11/00
CPC分类号： H04L1/0057 , H04L1/12
摘要： The present invention relates to a new error control paradigm in a packet switched network that is particularly advantageous for multicast transmission.A transmission Status Vector TSV (T) is updated at the sender side whenever a new outgoing data packet (Dj−1) is scheduled for transmission. A corresponding Reception status Vector RSV (R) is similarly updated at the receive side whenever a new incoming and correctly indexed data packet (Dj−1) is validly received.As soon as a missing or corrupted data packet (Dj) is detected, the update of the RSV is suspended. A request is then sent to the sender to get the current Tsv's value, or a part thereof. The erroneous data packet is then recovered from the current TSV's value (Sk,m), from the lastly updated RSV's value (Sj-1), and from otherwise validly received data packets (Dj+1, . . . , Dk).The present invention more specifically relates to a transmitting unit (100) and a receiving unit (200) implementing that paradigm, and correspondingly to a method for protecting a flow of indexed data packets against data lost or data corruption, and a method for recovering a missing or corrupted data packet within a flow of indexed data packets.
摘要翻译： 本发明涉及分组交换网络中对组播传输特别有利的新的错误控制范例。 每当新的输出数据分组（Dj-1）被调度用于传输时，在发送器侧更新传输状态向量TSV（T）。 无论何时有效地接收新的传入和正确索引的数据分组（Dj-1），在接收侧类似地更新对应的接收状态向量RSV（R）。 一旦检测到丢失或损坏的数据包（Dj），则RSV的更新被暂停。 然后，向发送方发送请求以获得当前的Tsv值或其一部分。 然后从最后更新的RSV值（Sj-1）和其他有效接收的数据分组（Dj + 1，...，Dk）从当前TSV值（Sk，m）恢复错误的数据分组。 本发明更具体地涉及实现该范例的发送单元（100）和接收单元（200），并且相应于用于保护索引数据分组的数据流免遭数据丢失或数据损坏的方法，以及用于恢复 在索引数据包流中丢失或损坏的数据包。
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公开(公告)号：US20070297448A1
公开(公告)日：2007-12-27
申请号：US11758652
申请日：2007-06-05
IPC分类号： H04J3/16
CPC分类号： H04N21/6587 , H04N7/173 , H04N21/23106 , H04N21/2381 , H04N21/4384 , H04N21/44004 , H04N21/6405 , H04N21/6408
摘要： The present invention relates to a network unit adapted to transmit a video channel (Chx) to be played at a nominal motion speed (α), which network unit comprising: a signaling means (104) adapted to receive a request (Join_Chx) from a decoding device (200) whereby transmission of the video channel is requested, a video transmitting means (112) adapted thereupon to transmit the video channel towards the decoding device, initially as a dedicated multimedia stream (UC_Chx) dedicatedly supplied to the decoding device and comprising an independent video frame (I) as first transmitted video frame, and further in time as a common multimedia stream (MC_Chx) commonly supplied to a plurality of decoding devices (200, 220). A network unit according to the invention is characterized in that the video transmitting means is further adapted to transmit the video channel within the dedicated multimedia stream ahead of time with respect to transmission of the video channel within the common multimedia stream, and in that the video channel is to be initially played at an averagely slower motion speed (β, β′, β″, β′″), thereby allowing transmission of the video channel to be resumed with the common multimedia stream. The present invention also relates to a decoding device, to a method for transmitting a video channel, and to a method for receiving and playing that video video channel.
摘要翻译： 本发明涉及适于以标称运动速度（α）传输要播放的视频频道（Chx）的网络单元，该网络单元包括：信令装置（104），适于从 解码装置（200），由此请求视频信道的传输;视频发送装置（112），适于随后向解码装置发送视频信道，最初作为专门提供给解码装置的专用多媒体流（UC_Chx），并且包括 作为第一发送视频帧的独立视频帧（I），并且作为通常提供给多个解码装置（200,220）的公共多媒体流（MC_Chx），进一步作为时间。 根据本发明的网络单元的特征在于，视频发送装置还适于相对于公共多媒体流内的视频信道的传输而在专用多媒体流中传输视频信道，并且视频 频道最初以平均较慢的运动速度（beta，beta'，beta“，beta”“）播放，从而允许用公共多媒体流传输要恢复的视频频道。 本发明还涉及一种解码装置，一种用于发送视频信道的方法，以及一种用于接收和播放该视频视频信道的方法。
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公开(公告)号：US08904043B2
公开(公告)日：2014-12-02
申请号：US11524299
申请日：2006-09-21
IPC分类号： G06F15/16 , H04L29/06 , H04L12/801 , H04L12/893 , H04L1/16
CPC分类号： H04L47/10 , H04L1/1607 , H04L47/40 , H04L69/16 , H04L69/161 , H04L69/163
摘要： Network devices (30) receiving first packets from first devices (10) and in response transmitting second packets to second devices (20), and receiving third packets from the second devices (20) and in response transmitting fourth packets to the first devices (10), get manipulation means (40) for manipulating information at layers higher than internet protocol layers of headers of packets for improving transport efficiencies between the first and second devices (10,20). The higher layer may comprise a transport control protocol layer-4 to allow the network devices (30) to take over acknowledging functions of the second devices (20) and to take over re-transmission functions of the first devices (10) and to support the second devices (20) through offering additional buffer space and to support the first devices (10) through offering extended/advanced stream management.
摘要翻译： 网络设备（30）从第一设备（10）接收第一分组，并且响应于向第二设备（20）发送第二分组，并且从第二设备（20）接收第三分组，并且响应于向第一设备（10 ），获得用于在高于分组报头的互联网协议层的层处理信息的操纵装置（40），以提高第一和第二设备（10,20）之间的传输效率。 较高层可以包括传输控制协议层-4以允许网络设备（30）接管第二设备（20）的确认功能并且接管第一设备（10）的重传功能并且支持 第二设备（20）通过提供额外的缓冲空间并通过提供扩展/高级流管理来支持第一设备（10）。
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5.发明申请公开(公告)号：US20130246803A1
公开(公告)日：2013-09-19
申请号：US13422447
申请日：2012-03-16
CPC分类号： H04L67/06 , H04L65/4084 , H04L65/80 , H04N21/23476 , H04N21/4622 , H04N21/8456
摘要： Disclosed are an apparatus and method configured to perform media file encryption. One example method may include retrieving a media file stored in a memory during a play time operation, executing the media file and receiving additional portions of the media file during the play time operation. The method may also include processing the media file and the additional portions of the media file to generate an output media and displaying the output media on a display of a user device.
摘要翻译： 公开了一种被配置为执行媒体文件加密的装置和方法。 一个示例性方法可以包括在播放时间操作期间检索存储在存储器中的媒体文件，在播放时间操作期间执行媒体文件和接收媒体文件的附加部分。 该方法还可以包括处理媒体文件和媒体文件的附加部分以生成输出媒体并在用户设备的显示器上显示输出媒体。
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6.发明申请公开(公告)号：US20070121639A1
公开(公告)日：2007-05-31
申请号：US11564111
申请日：2006-11-28
IPC分类号： H04L12/56
CPC分类号： H04L1/004 , H04L1/1812
摘要： The invention concerns a data packet retransmission arrangement having a retransmission buffer, a counter, a forward error correction device and control logic. The retransmission buffer stores recently transmitted data packets. The counter keeps track of the number of retransmission requests received for a data packet (211). If this number is below a first integer value K, the data packet is retransmitted (212, 213). If this number is equal to or above the first integer value K, the forward error correction device calculates N forward error correction packets on L-1 recently transmitted data packets plus the data packet to be retransmitted (211), N being a second integer value equal to or larger than zero, and L being a third integer value equal to or larger than 1. In the latter case, the data packet is retransmitted together with the N forward error correction packets (214).
摘要翻译： 本发明涉及具有重传缓冲器，计数器，前向纠错装置和控制逻辑的数据分组重传布置。 重发缓冲器存储最近发送的数据分组。 计数器跟踪接收到的数据包的重发请求数（211）。 如果该数字低于第一整数值K，则重发数据分组（212,213）。 如果该数量等于或大于第一整数值K，则前向纠错装置在L-1最近发送的数据分组加上要重发的数据分组（211）上计算N个前向纠错分组，其中N为第二整数值 等于或大于零，并且L是等于或大于1的第三整数值。在后一种情况下，数据分组与N个前向纠错分组（214）一起重传。
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公开(公告)号：US08867347B2
公开(公告)日：2014-10-21
申请号：US13378901
申请日：2010-06-10
IPC分类号： G01R31/08 , H04L12/911 , H04L12/54 , H04L12/913 , H04L12/801 , H04L12/927 , H04L12/853 , H04L12/811
CPC分类号： H04L47/10 , H04L47/127 , H04L47/19 , H04L47/2416 , H04L47/38 , H04L47/70 , H04L47/724 , H04L47/781 , H04L47/801 , H04L47/822 , H04L47/823
摘要： A method for control of congestion of traffic, being categorized according to a number of layers (L), in a network node, comprises a step of monitoring the amount (n(t)) of incoming flows to this node such that, based upon this amount (n(t)) of incoming flows and on a current number of accepted layers (l(t)), a next number of accepted layers (l(t+1)) for entry into said node is determined by consultation of an action table (T). In an enhanced embodiment the action table is adjusted based on the observed traffic during an observation period.
摘要翻译： 一种用于控制在网络节点中根据层数（L）分类的业务拥塞的方法包括监视到该节点的流入量（n（t））的步骤，以便基于 进入所述节点的入局流量（n（t））和当前接受层数（1（t）），接下来的接收层数（l（t + 1））是通过协商确定的 动作表（T）。 在增强实施例中，基于在观察期间观察到的交通量来调整动作表。
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公开(公告)号：US09948695B2
公开(公告)日：2018-04-17
申请号：US13422447
申请日：2012-03-16
IPC分类号： G06F12/14 , H04L29/08 , H04L29/06 , H04N21/2347 , H04N21/462 , H04N21/845
CPC分类号： H04L67/06 , H04L65/4084 , H04L65/80 , H04N21/23476 , H04N21/4622 , H04N21/8456
摘要： Disclosed are an apparatus and method configured to perform media file encryption. One example method may include retrieving a media file stored in a memory during a play time operation, executing the media file and receiving additional portions of the media file during the play time operation. The method may also include processing the media file and the additional portions of the media file to generate an output media and displaying the output media on a display of a user device.
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公开(公告)号：US20130101017A1
公开(公告)日：2013-04-25
申请号：US13643459
申请日：2011-04-26
IPC分类号： H04N7/12
CPC分类号： A63F13/355 , A63F13/12 , A63F13/358 , A63F13/525 , A63F2300/534 , A63F2300/538 , H04N19/103 , H04N19/134 , H04N19/176 , H04N19/196 , H04N19/197 , H04N19/46 , H04N19/52 , H04N19/537 , H04N19/597 , H04N21/4781 , H04N21/6587
摘要： A method for providing an encoded video application (3D APP; 2DAPP) from a server (SERVER) to a respective client (CLIENT1, . . . , CLIENTN) user via a communications link, comprises steps of updating scenes pertaining to said video application (3DAPP; 2DAPP) at said server (SERVER), deriving therefrom a respective video stream (2Dvideo 1, . . . 2DvideoN) comprising a succession of respective 2D user-related viewpoints for said respective client (CLIENT1, . . . , CLIENTN), calculating at least one respective compression related parameter (ep2D—1, . . . , ep2D_N) from application object vertex information extracted from a subset of successive ones of said scenes pertaining to said video application (3DAPP; 2DAPP) at said server, using said respective compression related parameter (ep2D—1, . . . , ep2D_N) during subsequent encoding of said respective video stream (2D-video1, . . . 2DvideoN), for thereby generating a respective encoded video stream (encoded2D video—1, . . . , encoded2DvideoN) for provision to said respective client user (CLIENT1, . . . , CLIENTN). A server adapted to perform this method is disclosed as well
摘要翻译： 用于经由通信链路从服务器（SERVER）向相应客户端（CLIENT1，...，CLIENTN）用户提供编码视频应用（3D APP; 2DAPP）的方法包括以下步骤：更新与所述视频应用有关的场景 3DAPP; 2DAPP），在所述服务器（SERVER）处，从其导出包括用于所述各个客户端（CLIENT1，...，CLIENTN）的一系列相应的2D用户相关视点的相应视频流（2Dvideo1 ... 2DvideoN） 从在所述服务器上与所述视频应用（3DAPP; 2DAPP）相关的所述场景的连续的一个场景的子集中提取的应用对象顶点信息中，使用所述的应用对象顶点信息来计算至少一个相应的压缩相关参数（ep2D-1，...，ep2D_N） 在所述相应视频流（2D-video1 ... 2DvideoN）的后续编码期间，分别压缩相关参数（ep2D-1，...，ep2D_N）），从而生成相应的编码视频流（encoded2D video-1，...） 。，encoded2Dvid eoN）用于提供给所述相应的客户端用户（CLIENT1， 。 。 ，CLIENTN）。 还公开了适于执行该方法的服务器
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10.发明申请METHOD AND APPARATUS FOR IMPROVING ADAPTIVE STREAMING VIDEO QUALITY BY OPTIMIZING RESOURCE ALLOCATION 有权通过优化资源分配改善自适应流媒体视频质量的方法和装置公开(公告)号：US20130091248A1
公开(公告)日：2013-04-11
申请号：US13253368
申请日：2011-10-05
申请人： Harish Viswanathan , Nandu Gopalakrishnan , Mark M. Clougherty , Andre Beck , Gang Li , Danny De Vleeschauwer , Steve A. Benno , Ashok N. Rudrapatna
发明人： Harish Viswanathan , Nandu Gopalakrishnan , Mark M. Clougherty , Andre Beck , Gang Li , Danny De Vleeschauwer , Steve A. Benno , Ashok N. Rudrapatna
IPC分类号： G06F15/16
CPC分类号： H04W28/22 , H04W72/1236
摘要： A method of allocating resources for transmitting content from a network element in a communications network to one or more mobile devices each in communication with the network element may include receiving, at the network element, characteristic information corresponding to each of the one or more mobile devices; and generating one or more adaptive guaranteed bit rate (AGBR) values at the network element corresponding to each of the one or more mobile devices, respectively. The AGBR values may be GBR values generated for each of the one or more mobile devices based on the corresponding characteristic information. A first scheduling algorithm may be executed at the network element based on the one or more AGBR values; and resources may be allocated to the one or more mobile devices based on an output of the scheduling algorithm.
摘要翻译： 分配用于从通信网络中的网络元件发送内容到每个与网络元件通信的一个或多个移动设备的资源的方法可以包括在网络元件处接收与一个或多个移动设备中的每一个对应的特征信息 ; 以及分别在与所述一个或多个移动设备中的每个移动设备相对应的网络单元处生成一个或多个自适应保证比特率（AGBR）值。 AGBR值可以是基于相应的特征信息为一个或多个移动设备中的每一个生成的GBR值。 可以基于一个或多个AGBR值在网络元件处执行第一调度算法; 并且可以基于调度算法的输出将资源分配给一个或多个移动设备。
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