公开(公告)号：US20120300663A1

公开(公告)日：2012-11-29

申请号：US13575646

申请日：2010-01-28

Applicant: Xiuping Lu ,  Ishan Uday Mandrekar ,  Ramkumar Perumanam ,  Hang Liu

Inventor： Xiuping Lu ,  Ishan Uday Mandrekar ,  Ramkumar Perumanam ,  Hang Liu

IPC: H04L12/26

CPC classification number: H04L1/1838 ,  H04L1/1671 ,  H04L1/1877

Abstract: A method and apparatus are described including parsing an abstraction-layer header and assigning a priority to a packet to be transmitted. A network monitor of a transmitter is connected between a network interface and a retransmission decision maker for deciding which packets to retransmit, for example, based on the assigned priority and collected network statistics or conditions, for example, packet loss rate. A network monitor may also be provided at a receiver for collecting current network statistics such as cumulative number of packets lost and for providing such statistics to a transmitter. The method further includes buffering the data to be transmitted along with the assigned priority, transmitting data retrieved from a buffer via a datagram protocol, receiving a request for retransmission of data, determining if the requested data is in the buffer and retransmitting the requested data via a protocol that provides end-to-end acknowledgement of data and error recovery.

Abstract translation: 描述了一种方法和装置，包括解析抽象层报头并且为要发送的分组分配优先级。 发送器的网络监视器连接在网络接口和重发决策器之间，用于基于分配的优先级和收集的网络统计或条件（例如，丢包率）来决定哪些分组被重传。 也可以在接收机处提供网络监视器，用于收集当前网络统计信息，例如丢失的分组的累积数目和用于将这种统计信息提供给发射机。 该方法还包括缓冲要发送的数据与分配的优先级，经由数据报协议传送从缓冲器检索的数据，接收数据重发请求，确定所请求的数据是否在缓冲器中，并通过 提供数据端口到终端确认和错误恢复的协议。

公开(公告)号：US20110122945A1

公开(公告)日：2011-05-26

申请号：US12737497

申请日：2009-07-21

Applicant: John Qiang Li ,  Zhenyu Wu ,  Xiuping Lu

Inventor： John Qiang Li ,  Zhenyu Wu ,  Xiuping Lu

IPC: H04N7/12

CPC classification number: H04N19/00321 ,  H04N19/177 ,  H04N19/187 ,  H04N19/33 ,  H04N19/59 ,  H04N19/895

Abstract: Methods for concealing Scalable Video Coding (SVC) decoding errors. Lost pictures in the target layer are replaced with up-sampled pictures from a lower layer, such as the base layer. In multiloop decoding applications, lost pictures in the target layer are replaced with corresponding up-sampled pictures from the lower layer. Subsequent target layer pictures in the same Group of Pictures (GOP) are either replaced with corresponding upsampled pictures from the lower layer, or they are decoded with up-sampled pictures from the lower layer used as reference pictures. For single-loop decoding, the bit stream of each layer is buffered, for each GOP, and inspected for errors. If an error is detected in the target layer, the pictures of the highest level layer without an error are decoded and up-sampled and used as the output pictures for the current GOP.

Abstract translation: 隐藏可缩放视频编码（SVC）解码错误的方法。 目标层中丢失的图像将被从较低层（例如基础层）的上采样图像所取代。 在多循环解码应用中，目标层中的丢失图像将被来自下层的相应的上采样图像所取代。 相同图像组（GOP）中的后续目标图像图像将被来自较低层的相应的上采样图像替换，或者用来自用作参考图像的较低层的上采样图像进行解码。 对于单循环解码，每个层的比特流对于每个GOP进行缓冲，并检查错误。 如果在目标层中检测到错误，则无错误的最高级别图层的图像被解码并上采样并用作当前GOP的输出图像。

公开(公告)号：US20130010597A1

公开(公告)日：2013-01-10

申请号：US13635068

申请日：2010-04-29

Applicant: Hang Liu ,  Mingquan Wu ,  John Li ,  Xiuping Lu ,  Ramkumar Perumanam ,  Saurabh Mathur

Inventor： Hang Liu ,  Mingquan Wu ,  John Li ,  Xiuping Lu ,  Ramkumar Perumanam ,  Saurabh Mathur

IPC: H04W28/10

CPC classification number: H04W28/16 ,  H04W16/14 ,  H04W84/12

Abstract: Described herein are a method and apparatus including calculating an aggregate peak total traffic demand for all overlapping access points in an interference range, comparing the aggregate peak total traffic demand to a threshold, rejecting a requested new quality of service traffic stream responsive to results of the comparison, calculating a peak total traffic demand for each overlapping access point in the interference range if the requested new quality of service traffic stream is admissible responsive to results of the comparison, comparing the peak total traffic demand for each overlapping access point in the interference range, if the requested new quality of service traffic stream is admissible, to the threshold and one of accepting the requested new quality of service traffic stream and rejecting the requested new quality of service traffic stream responsive to results of the second comparison.

Abstract translation: 这里描述了一种方法和装置，包括计算干扰范围内所有重叠接入点的总峰值总业务量需求，将总峰值总业务量需求与阈值进行比较，响应于所得到的结果，拒绝所请求的新服务质量业务流 比较，如果响应于比​​较结果允许所请求的新的服务质量服务业务流是可接受的，则计算干扰范围内每个重叠接入点的峰值总业务量需求，比较干扰范围内每个重叠接入点的峰值总业务量需求 如果所请求的新的服务质量业务流被允许，则接收到阈值，并且响应于第二比较的结果，接受所请求的新的服务质量业务流并拒绝所请求的新的服务质量业务流。

公开(公告)号：US20110164686A1

公开(公告)日：2011-07-07

申请号：US12998041

申请日：2009-09-10

Applicant: Xiuping Lu ,  Shemimon Manalikudy Anthru ,  David Anthony Campana

Inventor： Xiuping Lu ,  Shemimon Manalikudy Anthru ,  David Anthony Campana

IPC: H04N7/26

CPC classification number: H04N21/4307 ,  H04N21/234327 ,  H04N21/26216 ,  H04N21/4331 ,  H04N21/4623 ,  H04N21/631 ,  H04N21/8451 ,  H04N21/85406

Abstract: A delivery arrangement for linear TV programs uses SVC in which encoded enhancement layer video data is pre-downloaded to a STB and encoded base layer video data is live broadcasted to the STB at viewing time Pre-downloading of the enhancement layer data is done during off-peak viewing periods taking advantage of an abundance of network bandwidth while reducing bandwidth demand during peak viewing periods by broadcasting only the base layer data The enhancement layer data is downloaded in a modified MP4 file and stored in the STB for later synchronization and combination with the base layer, which is sent to the STB in a real time protocol (RTP) stream The combined base and enhancement layer data is SVC decoded for presentation to the enduser The pre-downloaded enhancement video file may be provided with digital rights management (DRM) protection, thereby providing conditional access to the enhanced video

Abstract translation: 用于线性电视节目的传送装置使用SVC，其中编码的增强层视频数据被预先下载到STB，并且编码的基本层视频数据在观看时被实时广播到STB。关闭时完成增强层数据的预先下载 - 观看时段利用丰富的网络带宽，同时通过仅广播基本层数据在峰值观看期间减少带宽需求增强层数据被下载到经修改的MP4文件中，并存储在STB中以备以后同步并与 基本层，其以实时协议（RTP）流发送到STB。组合的基本和增强层数据被SVC解码以呈现给最终用户。预先下载的增强视频文件可以被提供有数字版权管理（DRM） 保护，从而为增强型视频提供条件访问

公开(公告)号：US08798145B2

公开(公告)日：2014-08-05

申请号：US12737497

申请日：2009-07-21

Applicant: John Qiang Li ,  Zhenyu Wu ,  Xiuping Lu

Inventor： John Qiang Li ,  Zhenyu Wu ,  Xiuping Lu

IPC: H04N7/12 ,  H04N7/26 ,  H04N7/46 ,  H04N7/68

CPC classification number: H04N19/00321 ,  H04N19/177 ,  H04N19/187 ,  H04N19/33 ,  H04N19/59 ,  H04N19/895

Abstract: Methods for concealing Scalable Video Coding (SVC) decoding errors. Lost pictures in the target layer are replaced with up-sampled pictures from a lower layer, such as the base layer. In multiloop decoding applications, lost pictures in the target layer are replaced with corresponding up-sampled pictures from the lower layer. Subsequent target layer pictures in the same Group of Pictures (GOP) are either replaced with corresponding upsampled pictures from the lower layer, or they are decoded with up-sampled pictures from the lower layer used as reference pictures. For single-loop decoding, the bit stream of each layer is buffered, for each GOP, and inspected for errors. If an error is detected in the target layer, the pictures of the highest level layer without an error are decoded and up-sampled and used as the output pictures for the current GOP.

Abstract translation: 隐藏可缩放视频编码（SVC）解码错误的方法。 目标层中丢失的图像将被从较低层（例如基础层）的上采样图像所取代。 在多循环解码应用中，目标层中的丢失图像将被来自下层的相应的上采样图像所取代。 相同图像组（GOP）中的后续目标图像图像将被来自较低层的相应的上采样图像替换，或者用来自用作参考图像的较低层的上采样图像进行解码。 对于单循环解码，每个层的比特流对于每个GOP进行缓冲，并检查错误。 如果在目标层中检测到错误，则无错误的最高级别图层的图像被解码并上采样并用作当前GOP的输出图像。

公开(公告)号：US20110109808A1

公开(公告)日：2011-05-12

申请号：US12737416

申请日：2009-07-28

Applicant: John Qiang Li ,  Xiuping Lu ,  Zhenyu Wu

Inventor： John Qiang Li ,  Xiuping Lu ,  Zhenyu Wu

IPC: H04N7/26 ,  H04N5/44

CPC classification number: H04N5/50 ,  H04N5/45 ,  H04N21/23439 ,  H04N21/4316 ,  H04N21/4384

Abstract: A method and apparatus for fast channel change when changing the channel from a channel being viewed full screen as a main picture to a channel being viewed in a secondary channel program display window (e.g., a picture-in-picture (PIP) window). In one implementation, during the channel change, a secondary video stream for a secondary channel program is up-sampled and displayed full screen while receiving the corresponding regular video stream for the video program, of which program contents are identical to those of the secondary video stream. The program contents of the up-sampled secondary video stream is then be replaced seamlessly with those of the corresponding regular video stream at the time when an instantaneous decode refresh (IDR) frame of the corresponding regular video stream is received. In another implementation, the last GOP packets of the corresponding regular video stream, corresponding to a secondary video stream being viewed in the secondary channel program display window, are buffered without being decoded. Upon a request for the channel change, the buffered GOP packets are decoded and displayed immediately while the decoder starts receiving the following frames in the corresponding regular video stream.

Abstract translation: 一种用于在从作为主图像全屏观看的频道改变频道到在辅助频道节目显示窗口（例如，画中画（PIP）窗口）中观看的频道的频道改变时的方法和装置。 在一个实现中，在频道改变期间，用于辅助频道节目的辅助视频流被上采样并全屏显示，同时接收用于视频节目的相应的常规视频流，其中节目内容与次要视频的相同 流。 然后，当接收到相应的常规视频流的瞬时解码刷新（IDR）帧时，上采样次视频流的节目内容将与相应的常规视频流的节目内容无缝替换。 在另一实施方式中，缓冲对应于在辅助信道节目显示窗口中观看的次视频流的相应常规视频流的最后GOP分组，而不被解码。 在请求频道改变时，缓冲的GOP分组被解码并立即显示，同时解码器开始接收相应的常规视频流中的后续帧。

公开(公告)号：US20090245393A1

公开(公告)日：2009-10-01

申请号：US12309571

申请日：2007-07-25

Applicant: Alan Jay Stein ,  Jiwang Dai ,  John Qiang Li ,  Xiuping Lu

Inventor： Alan Jay Stein ,  Jiwang Dai ,  John Qiang Li ,  Xiuping Lu

IPC: H04N11/02

CPC classification number: H04N21/4347 ,  H04N21/23424 ,  H04N21/2365 ,  H04N21/2662 ,  H04N21/4305 ,  H04N21/4307 ,  H04N21/434 ,  H04N21/4383 ,  H04N21/4384 ,  H04N21/44016

Abstract: There are provided methods and apparatus for fast channel change for digital video. An apparatus includes at least one encoder for receiving normal video data and channel change video data and encoding the normal video data and the channel change video data in a normal video stream and a channel change video stream, respectively, using a common system clock to provide synchronization between the normal video stream and the channel change video stream. The normal video stream and the channel change video stream are encoded for transport separately at a transport level.

Abstract translation: 提供了用于数字视频快速通道改变的方法和装置。 一种装置包括至少一个用于接收正常视频数据和频道改变视频数据的编码器，并且使用公共系统时钟分别在普通视频流和频道改变视频流中编码普通视频数据和频道改变视频数据，以提供 正常视频流与频道之间的同步改变视频流。 正常视频流和频道改变视频流在传输层分别被编码用于传输。

公开(公告)号：US09247459B2

公开(公告)日：2016-01-26

申请号：US13635068

申请日：2010-04-29

Applicant: Hang Liu ,  Mingquan Wu ,  John Li ,  Xiuping Lu ,  Ramkumar Perumanam ,  Saurabh Mathur

Inventor： Hang Liu ,  Mingquan Wu ,  John Li ,  Xiuping Lu ,  Ramkumar Perumanam ,  Saurabh Mathur

IPC: H04W28/16 ,  H04W16/14 ,  H04W84/12

CPC classification number: H04W28/16 ,  H04W16/14 ,  H04W84/12

Abstract: Described herein are a method and apparatus including calculating an aggregate peak total traffic demand for all overlapping access points in an interference range, comparing the aggregate peak total traffic demand to a threshold, rejecting a requested new quality of service traffic stream responsive to results of the comparison, calculating a peak total traffic demand for each overlapping access point in the interference range if the requested new quality of service traffic stream is admissible responsive to results of the comparison, comparing the peak total traffic demand for each overlapping access point in the interference range, if the requested new quality of service traffic stream is admissible, to the threshold and one of accepting the requested new quality of service traffic stream and rejecting the requested new quality of service traffic stream responsive to results of the second comparison.

Abstract translation: 这里描述了一种方法和装置，包括计算干扰范围内所有重叠接入点的总峰值总业务量需求，将总峰值总业务量需求与阈值进行比较，响应于所得到的结果，拒绝所请求的新服务质量业务流 比较，如果响应于比​​较结果允许所请求的新的服务质量服务业务流是可接受的，则计算干扰范围内每个重叠接入点的峰值总业务量需求，比较干扰范围内每个重叠接入点的峰值总业务量需求 如果所请求的新的服务质量业务流被允许，则接收到阈值，并且响应于第二比较的结果，接受所请求的新的服务质量业务流并拒绝所请求的新的服务质量业务流。

公开(公告)号：US08582644B2

公开(公告)日：2013-11-12

申请号：US12737556

申请日：2009-01-29

Applicant: Xiuping Lu ,  Zhenyu Wu ,  John Qiang Li

Inventor： Xiuping Lu ,  Zhenyu Wu ,  John Qiang Li

IPC: H04B1/66 ,  H04N7/26

CPC classification number: H04L65/608 ,  H04N19/107 ,  H04N19/187 ,  H04N19/33 ,  H04N19/61 ,  H04N21/23424 ,  H04N21/234327 ,  H04N21/2381 ,  H04N21/2383 ,  H04N21/4384 ,  H04N21/44016 ,  H04N21/440227 ,  H04N21/6437

Abstract: An apparatus encodes a video signal for providing a scalable video coded (SVC) signal comprising a base layer video coded signal and an enhancement layer video coded signal, wherein the base layer video coded signal has more random access points, e.g., Instantaneous Decoder Refresh (IDR) slices, than the enhancement layer and in those access units where the enhancement layer has an IDR slice, the base layer has a non-IDR slice. Transmission of the SVC occurs in packet form using the Real-time Transport Protocol (RTP) such that non-random access point slices are conveyed in Simple Time Aggregation Packets (STAP), each Simple Time Aggregation Packet comprising a Payload Content Scalability Information (PACSI) Network Abstraction Layer (NAL) Unit.

Abstract translation: 一种装置对视频信号进行编码，以提供包括基本层视频编码信号和增强层视频编码信号的可分级视频编码信号（SVC），其中基本层视频编码信号具有更多的随机接入点，例如瞬时解码器刷新（ IDR）切片，并且在增强层具有IDR切片的那些访问单元中，基层具有非IDR切片。 SVC的传输以分组形式使用实时传输协议（RTP）发生，使得非随机接入点片段在简单时间聚合分组（STAP）中传送，每个简单时间聚合分组包括有效载荷内容可扩展性信息（PACSI ）网络抽象层（NAL）单元。

公开(公告)号：US20130003579A1

公开(公告)日：2013-01-03

申请号：US13575653

申请日：2010-01-28

Applicant: Xiuping Lu ,  Ishan Uday Mandrekar ,  Ramkumar Perumanam ,  Hang Liu

Inventor： Xiuping Lu ,  Ishan Uday Mandrekar ,  Ramkumar Perumanam ,  Hang Liu

IPC: H04L12/26 ,  H04L12/56

CPC classification number: H04L65/608 ,  H04L47/10 ,  H04L47/18 ,  H04L47/2408 ,  H04N21/234327 ,  H04N21/2662 ,  H04N21/631 ,  H04N21/6375 ,  H04N21/6405 ,  H04N21/6437 ,  H04N21/8451

Abstract: A method and apparatus are described including parsing an abstraction-layer header, assigning a priority to a packet to be transmitted, buffering the data to be transmitted, transmitting data retrieved from a buffer via a datagram protocol, receiving a request for retransmission of data, determining if the requested data is in the buffer and retransmitting the requested data via a protocol that provides end-to-end acknowledgement of data and error recovery. A network monitor of a transmitter is connected between a network interface and a retransmission decision maker for deciding which packets to retransmit, for example, based on the assigned priority and collected network statistics. A network monitor may also be provided at a receiver for collecting current network statistics and reporting them to transmitter.

Abstract translation: 描述了一种方法和装置，包括解析抽象层报头，为要发送的分组分配优先级，缓冲要发送的数据，经由数据报协议发送从缓冲器检索的数据，接收数据重发请求， 确定所请求的数据是否在缓冲器中，并且经由提供数据和错误恢复的端到端确认的协议来重传所请求的数据。 发送器的网络监视器连接在网络接口和重发决策器之间，用于基于分配的优先级和收集的网络统计来决定哪些分组被重传。 还可以在接收机处提供网络监视器以收集当前网络统计信息并将其报告给发射机。