Apparatus and method for merging input RGB and composite video signals
to provide both RGB and composite merged video outputs
    211.
    发明授权
    Apparatus and method for merging input RGB and composite video signals to provide both RGB and composite merged video outputs 失效
    用于合并输入RGB和复合视频信号以提供RGB和复合合并视频输出的装置和方法

    公开(公告)号:US5065231A

    公开(公告)日:1991-11-12

    申请号:US649605

    申请日:1991-02-01

    CPC classification number: G09G1/285 G09G1/16 H04N9/641 G09G2340/12

    Abstract: A circuit which receives RGB and composite video and provides both RGB and composite merged outputs. Merging of RGB signals occur where the input composite signal is converted to RGB; and also, merging occurs of composite signals where the input RGB is converted to a composite signal. The circuit is particularly useful in a video overlay application. Notch filters are used both in the video path and keying path. The notch filters are centered at frequencies equal to the dot clock frequency of the RGB divided by integers where the result of this division falls within the chroma subcarrier spectrum.

    Abstract translation: 接收RGB和复合视频并提供RGB和复合合并输出的电路。 合并RGB信号时,输入复合信号被转换为RGB; 并且还将复合信号的合并发生,其中输入RGB被转换成复合信号。 该电路在视频覆盖应用中特别有用。 在视频路径和键控路径中都使用陷波滤波器。 陷波滤波器以等于RGB除以整数的点时钟频率的频率为中心,其中该分频的结果落在色子载波频谱内。

    Tile-based system and method for compressing video
    217.
    发明授权
    Tile-based system and method for compressing video 有权
    基于瓦片的系统和压缩视频的方法

    公开(公告)号:US08953675B2

    公开(公告)日:2015-02-10

    申请号:US12359218

    申请日:2009-01-23

    Abstract: A system and method are described below for encoding interactive low-latency video using interframe coding. For example, one embodiment of a computer-implemented method for performing video compression comprises: logically subdividing each of a sequence of images into a plurality of tiles, each of the tiles having a defined position within each of the sequence of images, the defined position remaining the same between successive images; encoding one of the tiles at a first defined position in a first image of the sequence of images using a first compression format and encoding the reminder of the tiles in the first image using the second compression format; and encoding one of the tiles at a second defined position in a second image of the sequence of images using the first compression format and encoding the reminder of the tiles in the first image using the second compression format; wherein the second compression format is dependent on previously-encoded tiles encoded according to the first compression format and/or the second compression format.

    Abstract translation: 下面描述用于使用帧间编码对交互式低延迟视频进行编码的系统和方法。 例如,用于执行视频压缩的计算机实现的方法的一个实施例包括:逻辑上将图像序列中的每一个细分为多个瓦片,每个瓦片在每个图像序列内具有定义的位置,所定义的位置 在连续图像之间保持相同; 使用第一压缩格式在所述图像序列的第一图像中的第一定义位置处编码所述瓦片之一,并且使用所述第二压缩格式对所述第一图像中的所述瓦片的提醒进行编码; 以及使用所述第一压缩格式在所述图像序列的第二图像中的第二定义位置处编码所述瓦片中的一个,并使用所述第二压缩格式对所述第一图像中的所述瓦片的提醒进行编码; 其中所述第二压缩格式依赖于根据所述第一压缩格式和/或所述第二压缩格式编码的先前编码的片段。

    SYSTEMS AND METHODS FOR RADIO FREQUENCY CALIBRATION EXPLOITING CHANNEL RECIPROCITY IN DISTRIBUTED INPUT DISTRIBUTED OUTPUT WIRELESS COMMUNICATIONS
    220.
    发明申请
    SYSTEMS AND METHODS FOR RADIO FREQUENCY CALIBRATION EXPLOITING CHANNEL RECIPROCITY IN DISTRIBUTED INPUT DISTRIBUTED OUTPUT WIRELESS COMMUNICATIONS 审中-公开
    无线电频率校准系统和方法在分布式输入分布式无线通信中实现频道重现

    公开(公告)号:US20140269502A1

    公开(公告)日:2014-09-18

    申请号:US13844355

    申请日:2013-03-15

    Abstract: Systems and methods are described for radio frequency (RF) calibration in a multiple antenna system (MAS) with multi-user (MU) transmissions (“MU-MAS”) exploiting uplink/downlink channel reciprocity. The RF calibration is used to compute open-loop downlink precoder based on uplink channel estimates, thereby avoiding feedback overhead for channel state information as in closed-loop schemes. For example, a MU-MAS of one embodiment comprises a wireless cellular network with one or multiple beacon stations, multiple client devices and multiple distributed antennas operating cooperatively via precoding methods to eliminate inter-client interference and increase network capacity.

    Abstract translation: 描述了利用上行链路/下行链路信道互易性的具有多用户(MU)传输(MU-MAS)的多天线系统(MAS)中的射频(RF)校准的系统和方法。 RF校准用于基于上行链路信道估计来计算开环下行链路预编码器,从而避免在闭环方案中的信道状态信息的反馈开销。 例如,一个实施例的MU-MAS包括具有一个或多个信标站,多个客户端设备和多个分布式天线的无线蜂窝网络,其经由预编码方法协同工作以消除客户间干扰并增加网络容量。

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