公开(公告)号：US20130044598A1

公开(公告)日：2013-02-21

申请号：US13340354

申请日：2011-12-29

申请人： Yan Zhang ,  Nirwan Ansari ,  Mingquan Wu ,  Hong Heather Yu

发明人： Yan Zhang ,  Nirwan Ansari ,  Mingquan Wu ,  Hong Heather Yu

IPC分类号： H04L12/26 ,  H04L12/24

CPC分类号： H04L43/0882 ,  H04L43/16 ,  H04L47/193 ,  H04L47/27 ,  H04L47/283 ,  H04L47/29

摘要： An embodiment of a system and method that uses inline measurements to probe available bandwidth for a transmission control protocol, and adaptively sets a slow-start threshold according to the available bandwidth. The method includes initializing a congestion window “cwnd,” sending cwnd packets, estimating an available bandwidth for the cwnd packets. The congestion window cwnd is set to a higher number, and the higher number of further packets is sent if the available bandwidth is greater than a first threshold level. The available bandwidth is re-estimated for the higher number of the further packets, and a soft start threshold “ssthresh” is set to the re-estimated available bandwidth. A statistical measure is calculated for the re-estimated available bandwidth, and the congestion window cwnd is set equal to ssthresh if a ratio of the statistical measure to the re-estimated available bandwidth is less than a second threshold level.

摘要翻译： 使用在线测量来探测传输控制协议的可用带宽的系统和方法的实施例，并且根据可用带宽自适应地设置慢启动阈值。 该方法包括初始化拥塞窗口cwnd，发送cwnd分组，估计cwnd分组的可用带宽。 拥塞窗口cwnd被设置为更高的数量，并且如果可用带宽大于第一阈值水平，则发送更多数量的另外的分组。 对于更多数量的其他分组重新估计可用带宽，并且将软启动阈值ssthresh设置为重新估计的可用带宽。 对于重新估计的可用带宽计算统计度量，并且如果统计度量与重新估计的可用带宽的比率小于第二阈值水平，则将拥塞窗口cwnd设置为等于ssthresh。

公开(公告)号：US09178789B2

公开(公告)日：2015-11-03

申请号：US13340354

申请日：2011-12-29

申请人： Yan Zhang ,  Nirwan Ansari ,  Mingquan Wu ,  Hong Heather Yu

发明人： Yan Zhang ,  Nirwan Ansari ,  Mingquan Wu ,  Hong Heather Yu

IPC分类号： G01R31/08 ,  H04L12/26 ,  H04L12/807 ,  H04L12/801 ,  H04L12/841

CPC分类号： H04L43/0882 ,  H04L43/16 ,  H04L47/193 ,  H04L47/27 ,  H04L47/283 ,  H04L47/29

摘要： An embodiment of a system and method that uses inline measurements to probe available bandwidth for a transmission control protocol, and adaptively sets a slow-start threshold according to the available bandwidth. The method includes initializing a congestion window “cwnd,” sending cwnd packets, estimating an available bandwidth for the cwnd packets. The congestion window cwnd is set to a higher number, and the higher number of further packets is sent if the available bandwidth is greater than a first threshold level. The available bandwidth is re-estimated for the higher number of the further packets, and a soft start threshold “ssthresh” is set to the re-estimated available bandwidth. A statistical measure is calculated for the re-estimated available bandwidth, and the congestion window cwnd is set equal to ssthresh if a ratio of the statistical measure to the re-estimated available bandwidth is less than a second threshold level.

摘要翻译： 使用在线测量来探测传输控制协议的可用带宽的系统和方法的实施例，并且根据可用带宽自适应地设置慢启动阈值。 该方法包括初始化拥塞窗口“cwnd”，发送cwnd数据包，估计cwnd数据包的可用带宽。 拥塞窗口cwnd被设置为更高的数量，并且如果可用带宽大于第一阈值水平，则发送更多数量的另外的分组。 对于更多数量的另外的分组重新估计可用带宽，并且将软启动阈值“ssthresh”设置为重新估计的可用带宽。 对于重新估计的可用带宽计算统计度量，并且如果统计度量与重新估计的可用带宽的比率小于第二阈值水平，则将拥塞窗口cwnd设置为等于ssthresh。

公开(公告)号：US09456377B2

公开(公告)日：2016-09-27

申请号：US13340027

申请日：2011-12-29

申请人： Tao Han ,  Nirwan Ansari ,  Mingquan Wu ,  Hong Heather Yu

发明人： Tao Han ,  Nirwan Ansari ,  Mingquan Wu ,  Hong Heather Yu

IPC分类号： H04J1/16 ,  H04W28/02 ,  H04L12/807 ,  H04L12/835

CPC分类号： H04W28/0242 ,  H04L47/27 ,  H04L47/30

摘要： A method for delivering packets in a wireless communications system includes determining a cause of loss for a previously transmitted packet based on a packet acknowledgement corresponding to the previously transmitted packet, the packet acknowledgement including at least one of a wireless loss indicator and a congestion warning indicator for the wireless communications system. The method also includes adjusting a transmission parameter in a packet transmission protocol according to the cause of loss, and retransmitting the previously transmitted packet.

摘要翻译： 一种用于在无线通信系统中传送分组的方法包括基于与先前发送的分组相对应的分组确认来确定先前发送的分组的丢失的原因，分组确认包括无线丢失指示符和拥塞警告指示符中的至少一个 用于无线通信系统。 该方法还包括根据丢失的原因调整分组传输协议中的传输参数，并重传先前发送的分组。

公开(公告)号：US20130044595A1

公开(公告)日：2013-02-21

申请号：US13340027

申请日：2011-12-29

申请人： Tao Han ,  Nirwan Ansari ,  Mingquan Wu ,  Hong Heather Yu

发明人： Tao Han ,  Nirwan Ansari ,  Mingquan Wu ,  Hong Heather Yu

IPC分类号： H04W28/02 ,  H04W24/00

CPC分类号： H04W28/0242 ,  H04L47/27 ,  H04L47/30

摘要： A method for delivering packets in a wireless communications system includes determining a cause of loss for a previously transmitted packet based on a packet acknowledgement corresponding to the previously transmitted packet, the packet acknowledgement including at least one of a wireless loss indicator and a congestion warning indicator for the wireless communications system. The method also includes adjusting a transmission parameter in a packet transmission protocol according to the cause of loss, and retransmitting the previously transmitted packet.

摘要翻译： 一种用于在无线通信系统中传送分组的方法包括基于与先前发送的分组相对应的分组确认来确定先前发送的分组的丢失的原因，分组确认包括无线丢失指示符和拥塞警告指示符中的至少一个 用于无线通信系统。 该方法还包括根据丢失的原因调整分组传输协议中的传输参数，并重传先前发送的分组。

公开(公告)号：US09602849B2

公开(公告)日：2017-03-21

申请号：US13233928

申请日：2011-09-15

申请人： Kui Lin ,  Hong Heather Yu ,  Hongbing Li

发明人： Kui Lin ,  Hong Heather Yu ,  Hongbing Li

IPC分类号： G06F17/00 ,  H04N21/2343 ,  G06F17/21 ,  G06F17/30 ,  H04N21/472 ,  H04N21/8549

CPC分类号： H04N21/234327 ,  G06F17/211 ,  G06F17/212 ,  G06F17/30896 ,  H04N21/47202 ,  H04N21/8549

摘要： In accordance with an embodiment of the present invention, a method of streaming a media preview includes delivering a preview data having preview information from a media file to be streamed. The preview data has a multi-dimensional hierarchical data structure has a plurality of layers with increasing content of the preview information in each layer of the plurality of layers. The preview data is configured to provide an adaptive and scalable preview service.

公开(公告)号：US09445135B2

公开(公告)日：2016-09-13

申请号：US13233882

申请日：2011-09-15

申请人： Kui Lin ,  Hong Heather Yu ,  Hongbing Li

发明人： Kui Lin ,  Hong Heather Yu ,  Hongbing Li

IPC分类号： G06F17/00 ,  H04N21/2343 ,  G06F17/21 ,  G06F17/30 ,  H04N21/472 ,  H04N21/8549

CPC分类号： H04N21/234327 ,  G06F17/211 ,  G06F17/212 ,  G06F17/30896 ,  H04N21/47202 ,  H04N21/8549

摘要： In accordance with an embodiment of the present invention, a method of streaming media with a media preview includes generating a preview data by extracting preview information from a media file to be streamed. The preview data has a multi-dimensional hierarchical data structure having a plurality of layers with increasing content of the preview information in each layer of the plurality of layers. The preview data is configured to provide a differentiated preview service.

摘要翻译： 根据本发明的一个实施例，一种具有媒体预览的流媒体的方法包括通过从待流传输的媒体文件中提取预览信息来生成预览数据。 预览数据具有多维分层数据结构，其具有多层，多层中每层中预览信息的内容增加。 预览数据被配置为提供差异化​​的预览服务。

公开(公告)号：US08990690B2

公开(公告)日：2015-03-24

申请号：US13398610

申请日：2012-02-16

申请人： Kui Lin ,  Hong Heather Yu

发明人： Kui Lin ,  Hong Heather Yu

IPC分类号： G06F3/00 ,  H04N21/2343 ,  H04N21/235 ,  H04N21/2665 ,  H04N21/431 ,  H04N21/472 ,  H04N21/4725 ,  H04N21/4728 ,  H04N21/6543 ,  H04N21/6587 ,  H04N21/81 ,  H04N21/84 ,  H04N21/8543 ,  H04N21/858 ,  H04N21/25 ,  H04N21/258 ,  H04N21/462 ,  H04N21/658 ,  H04N21/845

CPC分类号： H04N21/234327 ,  H04N21/235 ,  H04N21/251 ,  H04N21/25891 ,  H04N21/2665 ,  H04N21/4316 ,  H04N21/4622 ,  H04N21/47217 ,  H04N21/4725 ,  H04N21/4728 ,  H04N21/6543 ,  H04N21/6582 ,  H04N21/6587 ,  H04N21/8133 ,  H04N21/84 ,  H04N21/8455 ,  H04N21/8456 ,  H04N21/8543 ,  H04N21/8583

摘要： In accordance with an embodiment of the present invention, a method of playing a media includes receiving a first media stream of the media and displaying the first media stream in a first window of a media player. The first media stream includes navigable parts configured to be selected for higher resolution streaming. A request to stream a selected navigable part of the first media stream is sent. A second media stream with the selected navigable part is received and displayed. The resolution of the selected navigable part in the second media stream is higher than the resolution of the selected navigable part in the first media stream.

摘要翻译： 根据本发明的实施例，播放媒体的方法包括接收媒体的第一媒体流并在媒体播放器的第一窗口中显示第一媒体流。 第一媒体流包括被配置为被选择用于更高分辨率流的导航部分。 发送流式传输第一媒体流的所选导航部分的请求。 接收并显示具有所选导航部件的第二媒体流。 第二媒体流中所选择的可导航部分的分辨率高于第一媒体流中所选择的可导航部分的分辨率。

公开(公告)号：US08838954B2

公开(公告)日：2014-09-16

申请号：US13016721

申请日：2011-01-28

申请人： Jun Tian ,  Hong Heather Yu ,  Hongbing Li

发明人： Jun Tian ,  Hong Heather Yu ,  Hongbing Li

IPC分类号： H04L9/32 ,  H04L9/00

CPC分类号： H04L9/00

摘要： In one embodiment, a method of streaming media includes partitioning a media stream to be transmitted into a first stream of media segments at a media server. The first stream of the media segments has a first sequence. An index table is generated to identify the first sequence of the first stream of the media segments. The index table is encrypted using a key. A second stream of the media segments is generated. The second stream has a second sequence, which is random relative to the first sequence. The encrypted index table and a transcoded media stream having the second stream of the media segments are transmitted.

摘要翻译： 在一个实施例中，流媒体的方法包括将要发送的媒体流划分成媒体服务器处的媒体片段的第一流。 媒体片段的第一个流具有第一个序列。 生成索引表以识别媒体段的第一个流的第一个序列。 索引表使用密钥进行加密。 生成媒体片段的第二个流。 第二个流具有相对于第一个序列是随机的第二个序列。 发送加密索引表和具有媒体段的第二流的转码媒体流。

公开(公告)号：US20130089107A1

公开(公告)日：2013-04-11

申请号：US13253654

申请日：2011-10-05

申请人： Zhu Li ,  Yong Wang ,  Dong-Qing Zhang ,  Hong Heather Yu

发明人： Zhu Li ,  Yong Wang ,  Dong-Qing Zhang ,  Hong Heather Yu

IPC分类号： H04L12/56

CPC分类号： H04L47/323 ,  H04L47/30 ,  H04L65/80 ,  H04N21/64738 ,  H04N21/64769

摘要： Methods and systems for a multimedia queue management solution that maintaining graceful Quality of Experience (QoE) degradation are provided. The method selects a frame from all weighted queues based on a gradient function indicating a network performance rate change and a distortion rate caused by the frame and its related frames in the queue, and dropping the selected frame and all its related frames, and continues to drop similarly chosen frame until a network performance rate change caused by the dropping frame and its related frames meets a predetermined performance metric. A frame gradient is a distortion rate divided by a network performance rate change caused by the frame and its related frames, and a distortion rate is based on a sum of each individual frame distortion rate when the frame and its related frames are replaced by some other frames derived from remaining frames based on a replacement method.

摘要翻译： 提供了维护优雅的体验质量（QoE）降级的多媒体队列管理解决方案和方法。 该方法基于指示网络性能速率变化的梯度函数和由帧及其相关帧在队列中引起的失真率，并且丢弃所选帧及其所有相关帧，从所有加权队列中选择一帧，并继续 丢弃类似地选择的帧，直到由丢弃帧及其相关帧引起的网络性能速率变化满足预定的性能度量。 帧梯度是由帧及其相关帧引起的网络性能速率变化除以失真率，并且当帧和其相关帧被其他一些替换时，失真率基于每个单独的帧失真率的和 基于替换方法从剩余帧导出的帧。

公开(公告)号：US08406297B2

公开(公告)日：2013-03-26

申请号：US12553775

申请日：2009-09-03

申请人： Taoran Lu ,  Zhifeng Chen ,  Dapeng Oliver Wu ,  Yu Huang ,  Jun Tian ,  Hong Heather Yu

发明人： Taoran Lu ,  Zhifeng Chen ,  Dapeng Oliver Wu ,  Yu Huang ,  Jun Tian ,  Hong Heather Yu

IPC分类号： H04N7/26

CPC分类号： H04N19/17 ,  H04N19/124 ,  H04N19/139 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61

摘要： A system and method for region-of-interest-based bit-allocation scheme for video coding is provided. A method for encoding an image sequence of inter-frames and intra-frames includes grouping the inter-frames and the intra-frames in at least one group of pictures (GOP), and performing a frame-level bit-allocation to inter-frames and the intra-frames in the GOP. For each frame of the inter-frames and the intra-frames in the GOP, the method also includes partitioning the frame into a plurality of macroblocks, identifying macroblocks in the plurality of macroblocks as having regions of interest (ROI), and performing a macroblock level bit-allocation for the frame based on macroblocks identified as having ROI. The method further includes encoding the image sequence based on the bit-allocations, thereby producing an encoded image sequence, and outputting the encoded image sequence.

摘要翻译： 提供了一种用于视频编码的基于兴趣区域的比特分配方案的系统和方法。 用于对帧间和帧内帧的图像序列进行编码的方法包括：在至少一组图像（GOP）中对帧间帧和帧内进行分组，并且对帧间帧进行帧级比特分配 和GOP中的帧内。 对于GOP中的帧间和帧内的每帧，该方法还包括将帧划分成多个宏块，将多个宏块中的宏块识别为具有感兴趣区域（ROI），并且执行宏块 基于被识别为具有ROI的宏块的帧的级别位分配。 该方法还包括基于比特分配对图像序列进行编码，从而产生编码图像序列，并输出编码图像序列。