METHOD AND APPARATUS FOR INTERFERENCE CANCELLATION IN HYBRID SATELLITE-TERRESTRIAL NETWORK
    73.
    发明申请
    METHOD AND APPARATUS FOR INTERFERENCE CANCELLATION IN HYBRID SATELLITE-TERRESTRIAL NETWORK 有权
    混合卫星地面网络干扰消除的方法与装置

    公开(公告)号:US20130208655A1

    公开(公告)日:2013-08-15

    申请号:US13564840

    申请日:2012-08-02

    IPC分类号: H04B7/185

    摘要: In a method for cancelling interference caused by a terrestrial transmitter at a satellite receiver in a hybrid satellite-terrestrial network, a satellite receiver generates an interference cancellation signal based on a reference terrestrial signal from the terrestrial transmitter and a received over-the-air (OTA) signal. The satellite receiver then cancels the interference caused by the terrestrial transmitter by combining the interference cancellation signal with the received OTA signal. The interference cancellation signal is a modified version of the reference terrestrial signal.

    摘要翻译: 在用于消除混合卫星地面网络中的卫星接收机处的地面发射机造成的干扰的方法中,卫星接收机基于来自地面发射机的参考地面信号和接收到的空中无线电( OTA)信号。 然后,卫星接收机通过将干扰消除信号与接收到的OTA信号组合来消除由地面发射机引起的干扰。 干扰消除信号是参考地面信号的修改版本。

    SYSTEMS, METHODS, AND COMPUTER PROGRAM PRODUCTS FOR TRANSFORM COEFFICIENT SUB-SAMPLING
    74.
    发明申请
    SYSTEMS, METHODS, AND COMPUTER PROGRAM PRODUCTS FOR TRANSFORM COEFFICIENT SUB-SAMPLING 有权
    用于变换系数子采样的系统,方法和计算机程序产品

    公开(公告)号:US20130188692A1

    公开(公告)日:2013-07-25

    申请号:US13709780

    申请日:2012-12-10

    IPC分类号: H04N7/26

    摘要: Video compression encoding includes intra and inter prediction to reduce spatial and temporal redundancies in video. Prediction results or residuals represent differences between original video pixel values and predicted pixel values. The prediction residuals may be transformed into coefficients, referred to as transform coefficients, in the frequency domain. The transform coefficients may be quantized and entropy encoded. The transform coefficients can be sub-sampled prior to quantization to reduce their number. For example, sub-sampling may reduce more high frequency components than low frequency components represented in the transform coefficients. Therefore, sub-sampling reduces the number of transform coefficients that need to be quantized, reduces quantization complexity, and correspondingly increases throughput in the encoding.

    摘要翻译: 视频压缩编码包括帧内和帧间预测,以减少视频中的空间和时间冗余。 预测结果或残差表示原始视频像素值与预测像素值之间的差异。 预测残差可以被变换为频域中被称为变换系数的系数。 可以对变换系数进行量化和熵编码。 变换系数可以在量化之前进行子采样以减少它们的数量。 例如,子采样可以减少比变换系数中表示的低频分量更多的高频分量。 因此,子采样减少了需要量化的变换系数的数量,降低了量化复杂度,并且相应地增加了编码中的吞吐量。

    Color gamut scalability techniques
    75.
    发明授权
    Color gamut scalability techniques 有权
    色域可扩展性技术

    公开(公告)号:US08446961B2

    公开(公告)日:2013-05-21

    申请号:US12283305

    申请日:2008-09-11

    IPC分类号: H04N11/06

    摘要: Techniques are described that can be used to either compress or expand video. Color compression techniques are described that can be used to compress the wide color gamut content into lower color gamut for inclusion in a baseline layer. Color expansion techniques are described that convert lower color gamut data into wider color gamut format for inclusion in an enhancement layer. Both of the baseline video stream and enhancement layer video streams may be transmitted through a channel or stored in a memory device to be viewed later. Accordingly, both baseline and enhancement video layers are available so that either lower or higher quality displays can be used to display video.

    摘要翻译: 描述了可用于压缩或扩展视频的技术。 描述了可用于将宽色域内容压缩到较低色域以包含在基线层中的色彩压缩技术。 描述了将较低色域数据转换成更宽的色域格式以包含在增强层中的颜色展开技术。 基线视频流和增强层视频流都可以通过信道发送或存储在存储设备中,以便稍后观看。 因此,基线和增强视频层都可用,以便可以使用较低或较高质量的显示器来显示视频。

    Providing a virtual local channel in a satellite broadcast system
    76.
    发明授权
    Providing a virtual local channel in a satellite broadcast system 失效
    在卫星广播系统中提供虚拟本地信道

    公开(公告)号:US08396413B2

    公开(公告)日:2013-03-12

    申请号:US12257507

    申请日:2008-10-24

    IPC分类号: H04H40/00

    摘要: In one embodiment, a receiver for providing a virtual local channel in a broadcast radio system that transmits a plurality of sets of local content corresponding to a plurality of different geographic regions is disclosed. The receiver includes a detector (e.g., 432), adapted to determine a regional identifier for the receiver. The receiver also includes a channel selector (e.g., 412), adapted to obtain a selected set of local content from among the plurality of sets of local content, based on the determined regional identifier, for inclusion in the virtual local channel. The determined regional identifier identifies the geographic region associated with the selected set of local content.

    摘要翻译: 在一个实施例中,公开了一种在广播无线电系统中提供虚拟本地信道的接收机,其发送对应于多个不同地理区域的多组本地内容。 接收机包括适于确定接收机的区域标识符的检测器(例如,432)。 该接收机还包括一个频道选择器(例如412),适用于基于所确定的区域标识符从多个本地内容组中获得一组选定的本地内容,以便包含在虚拟本地信道中。 确定的区域标识符标识与所选择的一组本地内容相关联的地理区域。

    Method And Apparatus For Coding Data Using Compressive Sampling And Clustering
    77.
    发明申请
    Method And Apparatus For Coding Data Using Compressive Sampling And Clustering 审中-公开
    使用压缩采样和聚类编码数据的方法和装置

    公开(公告)号:US20130044820A1

    公开(公告)日:2013-02-21

    申请号:US13213762

    申请日:2011-08-19

    IPC分类号: H04N7/26

    摘要: Embodiments relate to an apparatus and method for encoding and decoding data. The method includes arranging, by an encoder, data into a plurality of blocks. Each block corresponds to a sub-region of the data. The method further includes assigning, by the encoder, the plurality of blocks into groups such that a spread value associated with each group meets a desired criterion. The spread value indicates a level of dissimilarity or similarity among members of a group. The method further includes generating, by the encoder, a set of measurements for at least one group of blocks. The set of measurements is coded data representing the blocks corresponding to the at least one group.

    摘要翻译: 实施例涉及用于对数据进行编码和解码的装置和方法。 该方法包括由编码器将数据排列成多个块。 每个块对应于数据的子区域。 该方法还包括由编码器将多个块分配成组,使得与每个组相关联的扩展值满足期望的标准。 传播价值表示群体成员之间的不同或相似程度。 该方法还包括由编码器生成至少一组块的一组测量值。 所述测量集合是表示对应于所述至少一个组的块的编码数据。

    POWER EFFICIENT MOTION ESTIMATION TECHNIQUES FOR VIDEO ENCODING
    79.
    发明申请
    POWER EFFICIENT MOTION ESTIMATION TECHNIQUES FOR VIDEO ENCODING 审中-公开
    用于视频编码的功率有效运动估计技术

    公开(公告)号:US20120281759A1

    公开(公告)日:2012-11-08

    申请号:US13001037

    申请日:2010-03-31

    IPC分类号: H04N7/32

    摘要: Adaptive control can use hierarchical motion estimation (HME) and/or multiple reference motion estimation (MRME) for the motion estimation of current encoding blocks. Both HME and MRME are allowed in the motion estimation to achieve a high coding gain. Control consists of slice level control and macro-block (MB) level control. A slice is one or more contiguous macroblocks. In slice level control, it is decided to use only one reference frame or use multiple reference frames to coding current slice based on the motion vectors obtained in coarse level motion estimation. In MB level control, it is decided to perform MRME or perform HME for the MB and its subblocks based on the coarse level motion vectors of the MB.

    摘要翻译: 自适应控制可以对当前编码块的运动估计使用分层运动估计(HME)和/或多参考运动估计(MRME)。 在运动估计中允许HME和MRME两者实现高编码增益。 控制由片级控制和宏块(MB)级控制组成。 切片是一个或多个连续的宏块。 在片级控制中,决定仅使用一个参考帧或者使用多个参考帧来基于在粗略级运动估计中获得的运动矢量对当前片进行编码。 在MB级别控制中,决定执行MRME或基于MB的粗略级别运动向量对MB及其子块执行HME。