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公开(公告)号：US10432270B2
公开(公告)日：2019-10-01
申请号：US14076943
申请日：2013-11-11
发明人： Chong Luo , Hao Cui , Chang Wen Chen , Feng Wu
IPC分类号： H04B7/0413 , H04L12/18 , H04N19/30 , H04N19/59 , H04B7/06
摘要： A multiplexed space-time block coding (M-STBC) scheme is described that allows for transmitting a single multicast transmission in a heterogeneous MIMO (i.e., multiple-input and multiple-output) environment, where receivers with fewer antennas can receive a lower resolution version of the multi-cast transmission, while receivers with a greater number of antennas can receive a higher resolution version of the multi-cast transmission. Thus, the M-STBC scheme allows for transmitting the single multicast transmission that includes both a spatial multiplexing mode and a diversity mode.
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公开(公告)号：US20190141316A1
公开(公告)日：2019-05-09
申请号：US16311129
申请日：2017-07-20
发明人： Cuiling Lan , Chong Luo , Feng Wu , Wenjun Zeng
IPC分类号： H04N19/103 , H04N19/124 , H04N19/154 , H04N19/192 , H04N19/18
摘要： In accordance with implementations of the subject matter described herein, a hybrid digital-analog coding scheme is proposed. In general, in accordance with implementations of the subject matter described herein, digital or analog encoding is selected at a level of chunks of a frame rather than at a level of the whole frame. Further, the encoding of a chunk is based on an expected distortion to be caused by analog transmission of the chunk over a communication channel, the distortion being estimated based on a constraint on available transmission resources over the transmission channel.
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公开(公告)号：US20150326649A1
公开(公告)日：2015-11-12
申请号：US14803801
申请日：2015-07-20
IPC分类号： H04L29/08
CPC分类号： H04L67/1002 , H04L67/1004
摘要： Techniques for configuring and operating a multimedia aware cloud, particularly configured for mobile device computing, are described herein. In some instances, clusters of servers are organized for general computing, graphic computing and data storage. A load balancing server may be configured to: identify multimedia types currently being processed within the multimedia edge cloud; determine desired quality of service levels for each identified multimedia type; evaluate individual abilities of devices communicating with the multimedia edge cloud; and assess bandwidth of each network over which the multimedia edge cloud communicates with a mobile device. With that information, multimedia data may be adapted accordingly, to result in an acceptable quality of service level when delivered to a specific mobile device. In one example of the techniques, graphic computing server clusters may be configured to process workload using a configuration that includes elements of both parallel and serial computing.
摘要翻译： 这里描述了用于配置和操作多媒体感知云，特别是配置用于移动设备计算的技术。 在某些情况下，为了一般计算，图形计算和数据存储而组织服务器集群。 负载平衡服务器可以被配置为：识别当前正在多媒体边缘云内处理的多媒体类型; 确定每个识别的多媒体类型的所需服务质量水平; 评估与多媒体边缘云通信的设备的个人能力; 并评估多媒体边缘云与移动设备通信的每个网络的带宽。 利用该信息，可以相应地调整多媒体数据，以便在递送到特定移动设备时导致可接受的服务质量水平。 在技术的一个示例中，图形计算服务器集群可以被配置为使用包括并行和串行计算的元件的配置来处理工作负载。
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公开(公告)号：US09973780B2
公开(公告)日：2018-05-15
申请号：US14069101
申请日：2013-10-31
发明人： Chong Luo , Hao Cui , Ruiqin Xiong , Feng Wu
IPC分类号： H04B1/66 , H04N7/12 , H04N11/02 , H04N11/04 , H04N19/615
CPC分类号： H04N19/615
摘要： Scaled video for pseudo-analog transmission in the spatial domain is described. Boundaries are determined for M L-shaped chunks of coefficients of at least one frequency-transformed video frame of a group of pictures (GOP). The boundaries are determined based at least on variances of the coefficients of the M L-shaped chunks, such as by reducing or minimizing the sum of the square roots of the variances of the coefficients. Corresponding power scale factors for the M L-shaped chunks are determined based at least partly on the variances of the coefficients of the M L-shaped chunks, and the coefficients of the M L-shaped chunks are scaled using the corresponding power scale factors. The pixel values of the frames (e.g., the frames in the spatial domain) are transmitted on a pseudo-analog channel. At the receiver, retained spatial redundancy enables denoising in the spatial domain prior to de-scaling in the frequency domain.
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5.发明授权公开(公告)号：US09432056B2
公开(公告)日：2016-08-30
申请号：US14071418
申请日：2013-11-04
发明人： Chong Luo , Hao Cui , Feng Wu , Chang Wen Chen
CPC分类号： H03M13/1171 , H03M13/1111 , H04L1/005 , H04L1/0058
摘要： Multi-level symbols generated by applying a Random Projection Code (RPC) to a source bit sequence are received at a receiver via a noisy channel. The received multi-level symbols are represented in a bipartite graph as constraint nodes connected via weighted edges to binary variable nodes that represent the source bit sequence. A decoder uses ZigZag deconvolution to generate constraint node messages as part of an iterative belief propagation to decode the source bit sequence from the received multi-level symbols.
摘要翻译： 通过将随机投影代码（RPC）应用于源比特序列产生的多级符号通过噪声信道在接收机处被接收。 接收的多级符号在二分图中表示为通过加权边缘连接到表示源比特序列的二进制变量节点的约束节点。 解码器使用ZigZag去卷积来生成约束节点消息作为迭代置信传播的一部分，以从接收到的多级符号解码源比特序列。
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公开(公告)号：US10911525B2
公开(公告)日：2021-02-02
申请号：US15893579
申请日：2018-02-09
IPC分类号： H04L29/08
摘要： Techniques for configuring and operating a multimedia aware cloud, particularly configured for mobile device computing, are described herein. In some instances, clusters of servers are organized for general computing, graphic computing and data storage. A load balancing server may be configured to: identify multimedia types currently being processed within the multimedia edge cloud; determine desired quality of service levels for each identified multimedia type; evaluate individual abilities of devices communicating with the multimedia edge cloud; and assess bandwidth of each network over which the multimedia edge cloud communicates with a mobile device. With that information, multimedia data may be adapted accordingly, to result in an acceptable quality of service level when delivered to a specific mobile device. In one example of the techniques, graphic computing server clusters may be configured to process workload using a configuration that includes elements of both parallel and serial computing.
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公开(公告)号：US20180167449A1
公开(公告)日：2018-06-14
申请号：US15893579
申请日：2018-02-09
IPC分类号： H04L29/08
CPC分类号： H04L67/1002 , H04L67/1004
摘要： Techniques for configuring and operating a multimedia aware cloud, particularly configured for mobile device computing, are described herein. In some instances, clusters of servers are organized for general computing, graphic computing and data storage. A load balancing server may be configured to: identify multimedia types currently being processed within the multimedia edge cloud; determine desired quality of service levels for each identified multimedia type; evaluate individual abilities of devices communicating with the multimedia edge cloud; and assess bandwidth of each network over which the multimedia edge cloud communicates with a mobile device. With that information, multimedia data may be adapted accordingly, to result in an acceptable quality of service level when delivered to a specific mobile device. In one example of the techniques, graphic computing server clusters may be configured to process workload using a configuration that includes elements of both parallel and serial computing.
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公开(公告)号：US10469824B2
公开(公告)日：2019-11-05
申请号：US15761751
申请日：2016-10-24
发明人： Chong Luo , Dongliang He , Wenjun Zeng
IPC分类号： H04N13/161 , H04N19/129 , H04N19/503 , H04N19/597 , H04N13/178 , H04N19/46 , H04N19/65
摘要： In this disclosure, a hybrid digital-analog video coding scheme is described. For a video including at least two associated sequences of frames such as a stereo video, some of the frames are digitally encoded, while the others are encoded in an analog way with reference to the digital frames. For an analog frame, a previous frame in the same sequence/view and a temporally consistent frame in another sequence/view will be encoded as digital frames. These two digital frames are used to provide side information in encoding the analog frame. At decoding side, inverse operations are performed. Such “zigzag” hybrid coding significantly improves the coding efficiency while providing robustness and good visual quality.
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公开(公告)号：US20180270471A1
公开(公告)日：2018-09-20
申请号：US15761751
申请日：2016-10-24
发明人： Chong Luo , Dongliang He , Wenjun Zeng
IPC分类号： H04N13/161 , H04N13/178
CPC分类号： H04N13/161 , H04N13/178 , H04N19/129 , H04N19/46 , H04N19/503 , H04N19/597 , H04N19/65
摘要： In this disclosure, a hybrid digital-analog video coding scheme is described. For a video including at least two associated sequences of frames such as a stereo video, some of the frames are digitally encoded, while the others are encoded in an analog way with reference to the digital frames. For an analog frame, a previous frame in the same sequence/view and a temporally consistent frame in another sequence/view will be encoded as digital frames. These two digital frames are used to provide side information in encoding the analog frame. At decoding side, inverse operations are performed. Such “zigzag” hybrid coding significantly improves the coding efficiency while providing robustness and good visual quality.
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公开(公告)号：US09923957B2
公开(公告)日：2018-03-20
申请号：US14803801
申请日：2015-07-20
IPC分类号： H04L29/08
CPC分类号： H04L67/1002 , H04L67/1004
摘要： Techniques for configuring and operating a multimedia aware cloud, particularly configured for mobile device computing, are described herein. In some instances, clusters of servers are organized for general computing, graphic computing and data storage. A load balancing server may be configured to: identify multimedia types currently being processed within the multimedia edge cloud; determine desired quality of service levels for each identified multimedia type; evaluate individual abilities of devices communicating with the multimedia edge cloud; and assess bandwidth of each network over which the multimedia edge cloud communicates with a mobile device. With that information, multimedia data may be adapted accordingly, to result in an acceptable quality of service level when delivered to a specific mobile device. In one example of the techniques, graphic computing server clusters may be configured to process workload using a configuration that includes elements of both parallel and serial computing.
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