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    • 41. 发明授权
    • Base station, multi-antenna communication system and communication method thereof
    • 基站,多天线通信系统及其通信方法
    • US08472549B2
    • 2013-06-25
    • US13438480
    • 2012-04-03
    • Yuantao ZhangJianming WuJun TianHua Zhou
    • Yuantao ZhangJianming WuJun TianHua Zhou
    • H04B7/02
    • H04L27/3488H04B7/0452H04L1/0003H04L1/0026H04L1/0031H04L1/0656
    • A User equipment selecting first user equipment in a mode of precoding transmission and second user equipment in a mode of diversity transmission; a parameter determining a modulation mode, the number of transmission layers and a precoding matrix according to channel quality information, precoding matrix information and number of transmission layers sent from the first user equipment and channel quality information and number of transmission layers sent from the second user equipment; according to the modulation mode and the number of transmission layers, generating first and second symbol sequence from first and second source data; hierarchically modulating the first and the second symbol sequence to generate a mixed symbol sequence; layer mapping and precoding for the mixed symbol sequence to generate transmission signals; and transmitting the precoding matrix and the number of transmission layers to the second user equipment; sending the transmission signals to the first and second user equipments.
    • A用户设备以分集传输模式以预编码传输和第二用户设备的模式选择第一用户设备; 根据信道质量信息确定调制模式,传输层数和预编码矩阵的参数,从第一用户设备发送的预编码矩阵信息和传输层数,以及从第二用户发送的信道质量信息和传输层数 设备; 根据调制方式和发送层数,从第一和第二源数据生成第一和第二符号序列; 分级调制第一和第二符号序列以产生混合符号序列; 用于混合符号序列的层映射和预编码以产生传输信号; 以及将所述预编码矩阵和所述传输层的数量发送到所述第二用户设备; 将发送信号发送到第一和第二用户设备。
    • 44. 发明授权
    • System and method for bit-allocation in video coding
    • 视频编码中位分配的系统和方法
    • US08406297B2
    • 2013-03-26
    • US12553775
    • 2009-09-03
    • Taoran LuZhifeng ChenDapeng Oliver WuYu HuangJun TianHong Heather Yu
    • Taoran LuZhifeng ChenDapeng Oliver WuYu HuangJun TianHong Heather Yu
    • H04N7/26
    • H04N19/17H04N19/124H04N19/139H04N19/176H04N19/46H04N19/61
    • 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.
    • 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。
    • 45. 发明授权
    • Transmission resource assigning method, feedback method and processing method for response signals
    • 传输资源分配方法,反馈信号的反馈方法和处理方法
    • US08265008B2
    • 2012-09-11
    • US12537903
    • 2009-08-07
    • Yuantao ZhangHua ZhouJun Tian
    • Yuantao ZhangHua ZhouJun Tian
    • H04K1/10
    • H04L1/1692H04J13/0048H04J13/0059H04L1/1671H04L1/1861H04L5/0007H04L5/0048H04L5/0053
    • The present invention discloses a transmission resource assignment method for response signals, a feedback method of response signals and a processing method of response signals. The transmission resource assignment method for response signals according to the present invention includes the steps of: determining a list of mobile stations required to transmit response signals currently; determining the number of the response signals required to be transmitted by each mobile station; and assigning a frequency-domain sequence and a time-domain sequence for each mobile station to transmit the response signals; wherein for multiple mobile stations assigned with the same frequency-domain sequence, the time-domain sequence assigned to the mobile station required to transmit multiple response signal groups is divided into multiple subsequences to be used to transmit the multiple response signal groups of the mobile station respectively; and parts of the time-domain sequences of different mobile stations corresponding to the multiple subsequences are orthogonal to each other respectively.
    • 本发明公开了一种用于响应信号的传输资源分配方法,响应信号的反馈方法和响应信号的处理方法。 根据本发明的用于响应信号的传输资源分配方法包括以下步骤:确定当前发送响应信号所需的移动站列表; 确定每个移动台需要发送的响应信号的数量; 以及为每个移动站分配频域序列和时域序列以发送响应信号; 其中对于分配了相同频域序列的多个移动站,分配给发送多个响应信号组所需的移动站的时域序列被划分为多个子序列,用于发送移动站的多个响应信号组 分别; 并且与多个子序列相对应的不同移动站的时域序列的部分分别彼此正交。
    • 47. 发明申请
    • System and Method for Content Protection in a Content Delivery Network
    • 内容交付网络内容保护的系统和方法
    • US20120183173A1
    • 2012-07-19
    • US13340908
    • 2011-12-30
    • Zhu LiJun TianHong Heather YU
    • Zhu LiJun TianHong Heather YU
    • G06K9/00
    • G06K9/00744
    • An embodiment of an apparatus to authenticate a sequence of video frames includes a process to choose intra-frames of the sequence and sample DC components thereof to produce a set of test fingerprints. To reduce a dimensionality of the test fingerprints, the DC components of the chosen intra-frames are multiplied by a projection matrix formed of eigenvectors associated with the larger eigenvalues of a covariance matrix for a library of frames. The projected test fingerprints are compared against a reference set of fingerprints for authentication. Time-stamp spacings of the chosen intra-frames are determined, and these spacings are employed to select candidate frames for authentication in the reference set of fingerprints.
    • 用于认证视频帧序列的装置的实施例包括选择序列的帧内和其DC样本的处理,以产生一组测试指纹。 为了降低测试指纹的维度,将所选择的帧内的DC分量乘以由与帧库相关的协方差矩阵的较大特征值相关联的特征向量形成的投影矩阵。 将投影的测试指纹与用于认证的参考指纹集进行比较。 确定所选择的帧内的时间间隔,并且采用这些间隔来选择参考指纹集中的认证候选帧。