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1. 发明授权

US06907460B2 Method for efficient retransmission timeout estimation in NACK-based protocols 失效
标题翻译：基于NACK协议的高效重传超时估计方法
公开(公告)号：US06907460B2
公开(公告)日：2005-06-14
申请号：US09822441
申请日：2001-03-30
申请人： Dmitri Loguinov , Hayder Radha
发明人： Dmitri Loguinov , Hayder Radha
IPC分类号： H04L1/16 , H04L1/00 , H04L1/12 , H04L1/18 , H04L12/56 , H04L29/02 , H04L29/06 , G06F15/173
CPC分类号： H04L47/10 , H04L1/0001 , H04L1/0021 , H04L1/1809 , H04L1/1848 , H04L1/1854 , H04L29/06 , H04L29/06027 , H04L47/283 , H04L2001/125
摘要： Disclosed is a system and method for estimating retransmission timeout (RTO) in a real-time streaming applications over the Internet between a server and a client. Accordingly, the present invention employs retransmission timeout (RTO) in NACK-based applications to support multiple retransmission attempts per lost packet, wherein the RTO is estimated by an actual around-trip delay (RTT) and a smooth inter-packet delay variance.
摘要翻译：公开了一种用于在服务器和客户端之间的因特网上的实时流应用中估计重传超时（RTO）的系统和方法。因此，本发明在基于NACK的应用中使用重传超时（RTO）来支持每个丢失分组的多个重传尝试，其中通过实际的周边延迟（RTT）和平滑的分组间延迟方差估计RTO。

2. 发明授权

US06639943B1 Hybrid temporal-SNR fine granular scalability video coding 有权
标题翻译：混合时间SNR精细粒度可扩展性视频编码
公开(公告)号：US06639943B1
公开(公告)日：2003-10-28
申请号：US09590825
申请日：2000-06-09
申请人： Hayder Radha , Yingwei Chen , Mihaela Van Der Schaar
发明人： Hayder Radha , Yingwei Chen , Mihaela Van Der Schaar
IPC分类号： H04N712
CPC分类号： H04N21/654 , H04N19/115 , H04N19/164 , H04N19/172 , H04N19/187 , H04N19/31 , H04N19/34 , H04N19/577 , H04N19/61 , H04N21/6332
摘要： The present invention is directed to fine granular coding technique that includes both quality and temporal scalability. This is accomplished by utilizing a hybrid temporal/SNR scalability structure that is readily adaptable to fine granular coding techniques. In one example of this structure, temporal enhancement frames and FGS enhancement frames are included in a single enhancement layer. In another example, two distinct enhancement layers are used to achieve the hybrid temporal-SNR scalability. The two layers include a temporal scalability layer to achieve the temporal enhancement for the base-layer (i.e., better motion), while an FGS layer is used to improve the quality SNR of the base-layer and/or the temporal-scalability enhancement layer.
摘要翻译：本发明涉及包括质量和时间可伸缩性的精细粒度编码技术。这通过利用易于适应细粒度编码技术的混合时间/ SNR可伸缩性结构来实现。在该结构的一个示例中，时间增强帧和FGS增强帧被包括在单个增强层中。在另一示例中，使用两个不同的增强层来实现混合时间SNR可伸缩性。两层包括实现基层的时间增强（即更好的运动）的时间可伸缩性层，而FGS层用于提高基层和/或时间可扩展性增强层的质量SNR 。

3. 发明申请

US20080037434A1 Modeling of residue errors using models that adapt on the basis of link quality indicators 审中-公开
标题翻译：使用适应链路质量指标的模型建立残差误差
公开(公告)号：US20080037434A1
公开(公告)日：2008-02-14
申请号：US11725243
申请日：2007-03-16
申请人： Hayder Radha , Shirish Karande , Utpal Parrikar , Kiran Misra
发明人： Hayder Radha , Shirish Karande , Utpal Parrikar , Kiran Misra
IPC分类号： G06F11/00
CPC分类号： H04L1/20
摘要： A method is provided for adapting models on the basis of link quality indicators. A plurality of statistical models which predict whether a given data bit in a stream of data bits is in error are first defined, where each model includes an indicator of bit errors in the bit stream used to train the model. The method then includes: receiving a data packet at a receiver in a wireless network; determining an indicator of bit errors for the received data packet; and processing the data packet at the receiver using a model from the plurality of models which correlates to the bit error indicator for the data packet.
摘要翻译：提供了一种基于链路质量指标来适应模型的方法。首先定义多个预测数据比特流中的给定数据位是否存在错误的统计模型，其中每个模型包括用于训练模型的比特流中的位错误的指示符。该方法包括：在无线网络中的接收机处接收数据分组; 确定所接收的数据分组的比特错误的指示符; 以及使用来自所述多个模型的与所述数据分组的位错误指示符相关的模型来处理所述接收机处的所述数据分组。

4. 发明授权

US07042944B2 Single-loop motion-compensation fine granular scalability 有权
公开(公告)号：US07042944B2
公开(公告)日：2006-05-09
申请号：US09887756
申请日：2001-06-21
申请人： Mihaela van der Schaar , Hayder Radha
发明人： Mihaela van der Schaar , Hayder Radha
IPC分类号： H04N7/00
CPC分类号： H04N19/34 , H04N19/31 , H04N19/61
摘要： A video coding technique having motion compensation for bi-directional predicted frames (B-frames) and predicted frames (P-frames). The video coding technique involves a single-loop prediction-based base layer which includes base layer B- and/or P-frames that are generated from “extended” or “enhanced” base layer reference frames during base layer coding.

5. 发明授权

US06532263B2 Scalable video coding system 有权
标题翻译：可扩展视频编码系统
公开(公告)号：US06532263B2
公开(公告)日：2003-03-11
申请号：US09867891
申请日：2001-05-30
申请人： Hayder Radha , Yingwei Chen , Robert A. Cohen
发明人： Hayder Radha , Yingwei Chen , Robert A. Cohen
IPC分类号： H04B166
CPC分类号： H04N21/658 , H04N19/34 , H04N21/6377
摘要： A system for coding video data comprised of one or more frames codes a portion of the video data using a frame-prediction coding technique, and generates residual images based on the video data and the coded video data. The system then codes the residual images using a fine-granular scalability coding technique, and outputs the coded video data and at least one of the coded residual images to a receiver.
摘要翻译：一种用于对由一个或多个帧组成的视频数据进行编码的系统使用帧预测编码技术对视频数据的一部分进行编码，并且基于视频数据和编码的视频数据生成残差图像。然后，该系统使用细粒度可伸缩性编码技术对残留图像进行编码，并将编码的视频数据和至少一个编码残差图像输出到接收机。

6. 发明授权

US06263022B1 System and method for fine granular scalable video with selective quality enhancement 有权
标题翻译：具有选择性质量增强的精细粒度可缩放视频的系统和方法
公开(公告)号：US06263022B1
公开(公告)日：2001-07-17
申请号：US09347882
申请日：1999-07-06
申请人： Yingwei Chen , Hayder Radha , Mihaela van der Schaar
发明人： Yingwei Chen , Hayder Radha , Mihaela van der Schaar
IPC分类号： H04N712
CPC分类号： H04N19/34 , H04N19/126 , H04N19/29
摘要： There is disclosed an adaptive quantization controller for use in a video encoder comprising a base layer circuit for receiving an input stream of video frames and generating compressed base layer video frames suitable for transmission to a streaming video receiver and an enhancement layer circuit for receiving the input stream of video frames and a decoded version of the compressed base layer video frames and generating enhancement layer video data associated with, and allocated to, corresponding ones of the compressed base layer video frames. The adaptive quantization controller receives at least one quantization parameter from the base layer circuit and, in response thereto, determines a corresponding shifting factor for shifting a bit plane associated with the enhancement layer video data. The adaptive quantizaion controller also modifies a data field in the enhancement layer video data to cause the video streaming receiver to assign a higher decoding priority to the shifted bit plane.
摘要翻译：公开了一种在视频编码器中使用的自适应量化控制器，其包括用于接收视频帧的输入流的基本层电路，并且生成适合于传输到流式视频接收机的压缩基本层视频帧以及用于接收输入的增强层电路视频帧流和压缩基本层视频帧的解码版本，并且生成与压缩基本层视频帧相关联并分配给对应的压缩基本层视频帧的增强层视频数据。自适应量化控制器从基层电路接收至少一个量化参数，响应于此，确定用于移位与增强层视频数据相关联的比特平面的相应移位因子。自适应量化控制器还修改增强层视频数据中的数据字段，以使视频流接收机向移位的位平面分配更高的解码优先级。

7. 发明申请

US20090196343A1 CHANNEL CAPACITY ESTIMATION AND PREDICTION METHOD AND APPARATUS FOR RATE ADAPTIVE WIRELESS VIDEO 有权
标题翻译：频率自适应无线视频的信道容量估计和预测方法及装置
公开(公告)号：US20090196343A1
公开(公告)日：2009-08-06
申请号：US12344228
申请日：2008-12-25
申请人： Yong-Ju Cho , Jeong-Ju Yoo , Jin-Woo Hong , Hayder Radha , Shirish Krande , Kiran Misra
发明人： Yong-Ju Cho , Jeong-Ju Yoo , Jin-Woo Hong , Hayder Radha , Shirish Krande , Kiran Misra
IPC分类号： H04N7/12
CPC分类号： H04L1/0026 , H04L1/0009 , H04L1/0014 , H04L1/203
摘要： There is provided a channel capacity estimation method for adaptive video transmission, the method including: estimating a Bit Error Rate (BER) for a received video packet; and estimating channel capacity by using the estimated BER.
摘要翻译：提供了一种用于自适应视频传输的信道容量估计方法，所述方法包括：估计接收到的视频分组的误码率（BER）; 并通过使用估计的BER估计信道容量。

8. 发明申请

US20090133123A1 Worm Propagation Modeling In A Mobile AD-HOC Network 审中-公开
标题翻译：蠕虫传播建模在移动AD-HOC网络
公开(公告)号：US20090133123A1
公开(公告)日：2009-05-21
申请号：US11921330
申请日：2006-06-02
申请人： Hayder Radha , Syed Ali Khayam
发明人： Hayder Radha , Syed Ali Khayam
IPC分类号： G06F21/00 , G06G7/62 , G06F17/10
CPC分类号： H04L63/1416 , G06F21/577 , H04L63/145
摘要： A worm propagation modeling system for use with a mobile ad-hoc network (MANET) includes an infection detection module receiving temporal dynamics information relating to temporal dynamics of worm spread in the MANET and spatial dynamics information relating to spatiality of nodes in the MANET. The infection detection module detects infection in a network segment of the MANET based on the temporal dynamics information and the spatial dynamics information.
摘要翻译：与移动自组织网络（MANET）一起使用的蠕虫传播建模系统包括感染检测模块，其接收与MANET中的蠕虫传播的时间动态有关的时间动力学信息，以及与MANET中的节点的空间性有关的空间动力学信息。感染检测模块基于时间动力学信息和空间动力学信息检测MANET网段中的感染。

9. 发明授权

US06700893B1 System and method for controlling the delay budget of a decoder buffer in a streaming data receiver 失效
标题翻译：用于控制流式数据接收器中的解码器缓冲器的延迟预算的系统和方法
公开(公告)号：US06700893B1
公开(公告)日：2004-03-02
申请号：US09440622
申请日：1999-11-15
申请人： Hayder Radha , Dmitri Loguinov
发明人： Hayder Radha , Dmitri Loguinov
IPC分类号： H04L1256
CPC分类号： H04L47/283 , H04L47/10 , H04L47/2416 , H04N21/23406 , H04N21/2381 , H04N21/44004 , H04N21/6332 , H04N21/6377 , H04N21/6437 , H04N21/654 , H04N21/658
摘要： There is disclosed a delay budget controller for use with a decoder buffer that receives streaming data packets over a data network from a streaming transmitter and stores the data packets in a plurality of access units for subsequent retrieval by a streaming data decoder. The delay budget controller comprises 1) a first controller for monitoring at least one network parameter associated with the data network; and 2) a second controller for monitoring in the decoder buffer a delay budget region comprising a sequence of access units that are about to be accessed sequentially by the data decoder. The delay budget region comprises a retransmission region and a late region separated by a temporal boundary, wherein the second controller detects missing data packets in the retransmission region and the late region and, in response to detection of a missing data packet in the retransmission region, transmits a retransmission request for the missing data packet to the streaming transmitter. The second controller adjusts the temporal boundary to thereby advance or retard the transmission of the retransmission request.
摘要翻译：公开了一种与解码器缓冲器一起使用的延迟预算控制器，其通过数据网络从流传输器接收流数据分组，并将数据分组存储在多个接入单元中，以便随后由流数据解码器检索。所述延迟预算控制器包括：1）用于监视与所述数据网络相关联的至少一个网络参数的第一控制器; 以及2）第二控制器，用于在所述解码器缓冲器中监视延迟预算区域，所述延迟预算区域包括将被所述数据解码器顺序访问的一系列访问单元。所述延迟预算区域包括由时间边界分隔的重发区域和后期区域，其中，所述第二控制器检测所述重传区域和后期区域中的丢失数据分组，并且响应于所述重传区域中的丢失数据分组的检测，向丢失的数据分组发送重发请求到流传输器。第二控制器调整时间边界，从而推进或延迟重传请求的传输。

10. 发明申请

US20080025204A1 Method to utilize physical layer channel state information to improve video quality 审中-公开
标题翻译：利用物理层信道状态信息提高视频质量的方法
公开(公告)号：US20080025204A1
公开(公告)日：2008-01-31
申请号：US11725242
申请日：2007-03-16
申请人： Hayder Radha , Shirish Karande , Utpal Parrikar , Kiran Misra
发明人： Hayder Radha , Shirish Karande , Utpal Parrikar , Kiran Misra
IPC分类号： G01R31/08
CPC分类号： H03M13/1111 , H03M13/612 , H03M13/6527 , H04L1/0045 , H04N19/61
摘要： A method is provided for improving error recovery of corrupt data packets in a wireless communication system. The method includes: receiving a plurality of incoming data packets over a wireless medium at a receiver; capturing an indicator of bit errors for each of the data packets at a layer of the receiver below an application layer; passing the bit error indicator for each of the data packets to the application layer of the receiver; and performing an error recovery operation in relation to a given data packet at the application layer using the bit error indicator associated with the given data packet.
摘要翻译：提供了一种用于改善无线通信系统中损坏的数据分组的错误恢复的方法。该方法包括：在接收机处通过无线介质接收多个输入数据分组; 捕获在应用层下面的接收器层的每个数据分组的比特错误的指示符; 将每个数据包的位错误指示符传递给接收器的应用层; 以及使用与给定数据分组相关联的位错误指示符，在应用层处执行关于给定数据分组的错误恢复操作。

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