System and Method For Distributed Input-Distributed Output Wireless Communications
    43.
    发明申请
    System and Method For Distributed Input-Distributed Output Wireless Communications 有权
    分布式输入分布式输出无线通信系统与方法

    公开(公告)号:US20090067402A1

    公开(公告)日:2009-03-12

    申请号:US12143503

    申请日:2008-06-20

    Abstract: A system and method are described for dynamically adapting the communication characteristics of a multiple antenna system (MAS) with multi-user (MU) transmissions (“MU-MAS”). For example, a method according to one embodiment of the invention comprises: transmitting a training signal from each antenna of a base station to each of a plurality of wireless client devices, each of the client devices analyzing each training signal to generate channel characterization data, and receiving the channel characterization data at the base station; computing a plurality of MU-MAS precoder weights based on the channel characterization data, the combined MU-MAS precoder weights comprising a MU-MAS channel matrix; determining instantaneous or statistical channel quality (“link quality metric”) for the wireless client devices using mutual information of MU-MAS links or singular values of the MU-MAS composite channel matrix; determining a subset of users and a MU-MAS transmission mode based on the link quality metric; precoding data using the MU-MAS precoder weights to generate precoded data signals for each antenna of the base station; and transmitting the precoded data signals through each antenna of the base station to each respective client device within the selected subset.

    Abstract translation: 描述了一种用于动态地适应具有多用户(MU)传输(MU-MAS)的多天线系统(MAS)的通信特性的系统和方法。 例如,根据本发明的一个实施例的方法包括:将训练信号从基站的每个天线发送到多个无线客户端设备中的每一个,每个客户机设备分析每个训练信号以产生信道表征数据, 以及在所述基站处接收所述信道表征数据; 基于所述信道特征数据计算多个MU-MAS预编码器权重,所述组合的MU-MAS预编码器权重包括MU-MAS信道矩阵; 使用MU-MAS链路的互信息或MU-MAS复合信道矩阵的奇异值来确定无线客户端设备的即时或统计信道质量(“链路质量度量”); 基于所述链路质量度量来确定用户的子集和MU-MAS传输模式; 使用MU-MAS预编码器权重预编码数据,以生成基站的每个天线的预编码数据信号; 以及将预编码的数据信号通过基站的每个天线发送到所选择的子集内的每个相应的客户机设备。

    System and method for distributed input-distributed output wireless communications
    44.
    发明授权
    System and method for distributed input-distributed output wireless communications 有权
    分布式输入分布式输出无线通信系统和方法

    公开(公告)号:US07418053B2

    公开(公告)日:2008-08-26

    申请号:US10902978

    申请日:2004-07-30

    Abstract: A method is described comprising: transmitting a training signal from each antenna of a base station to each of a plurality of client devices, each of the client devices analyzing each training signal to generate channel characterization data, and transmitting the channel characterization data back to the base station; storing the channel characterization data for each of the plurality of client devices; receiving data to be transmitted to each of the client devices; and precoding the data using the channel characterization data associated with each respective client device to generate precoded data signals for each antenna of the base station; and transmitting the precoded data signals through each antenna of the base station to each respective client device.

    Abstract translation: 描述了一种方法,其包括:将培训信号从基站的每个天线发送到多个客户端设备中的每一个,每个客户端设备分析每个训练信号以产生信道表征数据,以及将信道表征数据发送回 基站; 存储所述多个客户端设备中的每一个的信道表征数据; 接收要发送到每个客户端设备的数据; 以及使用与每个相应客户端设备相关联的信道表征数据对所述数据进行预编码,以生成所述基站的每个天线的预编码数据信号; 以及通过基站的每个天线将预编码的数据信号发送到每个相应的客户机设备。

    System and method for multimedia content simulcast
    45.
    发明授权
    System and method for multimedia content simulcast 有权
    多媒体内容联播的系统和方法

    公开(公告)号:US07386129B2

    公开(公告)日:2008-06-10

    申请号:US09871415

    申请日:2001-05-30

    Abstract: A computer-implemented method is described for processing multimedia channels comprising: encrypting a first group of multimedia channels using a first type of encryption to produce a first group of encrypted multimedia channels; encrypting the first group of multimedia channels using a second type of encryption to produce a second group of encrypted multimedia channels; concurrently transmitting the first group of encrypted multimedia channels with the second group of multimedia channels to a plurality of multimedia subscribers having multimedia receivers capable of decrypting the first group of encrypted multimedia channels and/or the second group of multimedia channels.Also described is a method comprising: receiving a plurality of channels from content providers at a cable headend; simulcasting premium cable channels to a plurality of subscribers in both a first encrypted format and a second encrypted format; and tran smitting non-premium channels to the plurality of subscribers in a non-encrypted format.

    Abstract translation: 描述了一种用于处理多媒体频道的计算机实现的方法,包括:使用第一类型的加密来加密第一组多媒体频道以产生第一组加密的多媒体频道; 使用第二类型的加密来加密第一组多媒体频道以产生第二组加密的多媒体频道; 将具有第二组多媒体频道的第一组加密多媒体频道同时发送到具有能够解密第一组加密多媒体频道和/或第二组多媒体频道的多媒体接收机的多个多媒体用户。 还描述了一种方法,包括:在有线头端从内容提供商接收多个频道; 以第一加密格式和第二加密格式将多个订户同时收费有线电视频道; 并以非加密格式将非优惠频道转移到多个订户。

    System and method for performing motion capture by strobing a fluorescent lamp
    46.
    发明申请
    System and method for performing motion capture by strobing a fluorescent lamp 有权
    通过选通荧光灯进行运动捕捉的系统和方法

    公开(公告)号:US20070285559A1

    公开(公告)日:2007-12-13

    申请号:US11449043

    申请日:2006-06-07

    CPC classification number: H04N5/247 H04N5/2224 H04N5/2353 H04N5/2354

    Abstract: A system and method are described for performing motion capture on a subject using fluorescent lamps. For example, a system according to one embodiment of the invention comprises: a synchronization signal generator to generate one or more synchronization signals; one or more fluorescent lamps configured to strobe on and off responsive to a first one of the one or more synchronization signals, the fluorescent lamps charging phosphorescent makeup, paint or dye applied to a subject for a motion capture session; and a plurality of cameras having shutters strobed synchronously with the strobing of the light source to capture images of the phosphorescent paint, wherein the shutters are open when the light source is off and the shutters are closed when the light source is on.

    Abstract translation: 描述了使用荧光灯对被摄体进行运动捕捉的系统和方法。 例如,根据本发明的一个实施例的系统包括:同步信号发生器,用于产生一个或多个同步信号; 一个或多个荧光灯被配置为响应于所述一个或多个同步信号中的第一个同步信号而选通和断开荧光灯,所述荧光灯将磷光化妆,施加到被摄体的涂料或染料用于运动捕捉会话; 以及多个相机,其具有与光源的选通同步地选通以捕获磷光涂料的图像的快门,其中当光源关闭时快门打开,并且当光源打开时快门关闭。

    System and method for rendering graphics and video on a display
    47.
    发明授权
    System and method for rendering graphics and video on a display 有权
    用于在显示器上渲染图形和视频的系统和方法

    公开(公告)号:US07236204B2

    公开(公告)日:2007-06-26

    申请号:US09792019

    申请日:2001-02-20

    Abstract: A method for properly rendering various types of graphical and video content is disclosed comprising: determining whether a display on which the content is to be displayed is a progressive or an interlaced display; for a progressive display, de-interlacing any interlaced source content, transforming any bitmapped source content to fit the progressive display's resolution and/or scaling factors, and geometrically rendering any source content in a geometric description format into a bitmap image to fit the progressive display's resolution and/or scaling factors; and for an interlaced display, if the interlaced source content is not provided at the interlaced display's resolution and/or scaling factors, de-interlacing the interlaced source content to produce de-interlaced source content, and transforming the de-interlaced source content to fit the interlaced display's resolution and/or scaling factors.

    Abstract translation: 公开了一种适当呈现各种图形和视频内容的方法,包括:确定要显示内容的显示是逐行显示还是隔行显示; 对于逐行显示,对交错的源内容进行去隔行扫描,转换任何位图源的内容以适应逐行显示的分辨率和/或缩放因子,以及将几何描述格式中的任何源内容几何地渲染成位图图像以适合逐行显示 分辨率和/或缩放因子; 并且对于隔行显示,如果在隔行显示器的分辨率和/或缩放因子处不提供隔行扫描的源内容,则将隔行扫描的源内容去隔行扫描以产生去隔行扫描的源内容,以及将去隔行的源内容转换为适合 隔行显示的分辨率和/或缩放因子。

    Recognizing a pattern in a video segment to identify the video segment
    50.
    发明授权
    Recognizing a pattern in a video segment to identify the video segment 有权
    识别视频段中的模式以识别视频段

    公开(公告)号:US06577346B1

    公开(公告)日:2003-06-10

    申请号:US09490885

    申请日:2000-01-24

    Abstract: A method and system are described for identifying video segments (e.g., commercials or television programs) without using any identification data that may or may not be provided in the non-displayed overscan portion or the vertical blanking interval of the video signal. Instead, the video segment is identified by recognizing patterns in the viewable portion of the video image data and/or in the video sound data. If the pattern is unique to a specific video segment, that video segment is identified by, for example, looking up the pattern in a table correlating patterns with video segment identifications. Any number of functions may be performed using this identification.

    Abstract translation: 描述了用于识别视频段(例如广告或电视节目)的方法和系统,而不使用在视频信号的未显示的过扫描部分或垂直消隐间隔中可能提供或不提供的任何识别数据。 相反,通过识别视频图像数据的可视部分和/或视频声音数据中的图案来识别视频段。 如果该图案对于特定视频片段是唯一的,则该视频片段通过例如在将视频片段标识相关联的表格中查找该图案来标识。 可以使用该标识来执行任何数量的功能。

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