Unified distributed architecture for a multi-point video conference and interactive broadcast systems
    51.
    发明授权
    Unified distributed architecture for a multi-point video conference and interactive broadcast systems 有权
    用于多点视频会议和互动广播系统的统一分布式架构

    公开(公告)号:US07158534B2

    公开(公告)日:2007-01-02

    申请号:US09726286

    申请日:2000-11-30

    CPC分类号: H04N7/15

    摘要: A unified architecture for a multipoint VC session and interactive broadcasting system is provided that includes a server, one or more video accessing points, reflectors and client machines. The server sets up the video communication sessions (VC sessions), each of which is hosted by one video accessing point. The server downloads the A/V client software to client machines. Reflectors direct audio/visual signals to client machines. The reflectors are coupled to the video accessing point and receive a control signal from the video accessing point in order to direct the A/V signals from the client machines participating in the VC session. The client machines process all of the A/V signals. This system for distributing the VC session tasks across these components reduces any bottleneck effect from using a single, central control point to direct the VC session and route the A/V signals. The server, also, serves as a ticket agent, and is configured to issue and redeem tickets for specific VC sessions and broadcasts through the use of a session booking module. Finally, the downloading process of the A/V client software prevents software incompatibility among participants and enables low storage devices such as handheld devices to participate.

    摘要翻译: 提供了一种用于多点VC会话和交互式广播系统的统一架构,其包括服务器,一个或多个视频访问点,反射器和客户端机器。 服务器设置视频通信会话(VC会话),每个会话由一个视频接入点承载。 服务器将A / V客户端软件下载到客户端机器。 反射器将音频/视频信号直接传送到客户端机器。 反射器耦合到视频访问点并从视频访问点接收控制信号,以便引导来自参与VC会话的客户机的A / V信号。 客户机处理所有的A / V信号。 用于在这些组件之间分发VC会话任务的系统减少了使用单个中央控制点来引导VC会话并路由A / V信号的瓶颈效应。 该服务器也作为一个票务代理,并且配置为通过使用会话预约模块发出和兑换特定VC会话和广播的票。 最后,A / V客户端软件的下载过程阻止了参与者之间的软件不兼容性,并使诸如手持设备之类的低存储设备能够参与。

    Manufacture of macrocyclic polyester oligomers
    52.
    发明申请
    Manufacture of macrocyclic polyester oligomers 审中-公开
    制造大环聚酯低聚物

    公开(公告)号:US20060128935A1

    公开(公告)日:2006-06-15

    申请号:US11270020

    申请日:2005-11-09

    IPC分类号: C08G63/02

    摘要: Macrocyclic polyester oligomers can be manufactured in relatively high yields by contacting, a solution of a low oligomer of an organic diester and a diol, with an N-heterocyclic carbene-containing catalyst.

    摘要翻译: 通过使有机二酯和二醇的低聚物的溶液与含有N-杂环卡宾的催化剂接触,可以以相对高的产率制备大环聚酯低聚物。

    Selective synthesis of organodiphosphite compounds
    56.
    发明授权
    Selective synthesis of organodiphosphite compounds 失效
    有机二亚磷酸酯化合物的选择性合成

    公开(公告)号:US6069267A

    公开(公告)日:2000-05-30

    申请号:US113260

    申请日:1998-07-10

    申请人: Wilson Tam

    发明人: Wilson Tam

    IPC分类号: C07F9/145 C07F9/6574

    CPC分类号: C07F9/65746 C07F9/145

    摘要: A process for the preparation of organodiphosphites of the formula (R.sup.1 O).sub.2 P(OZO)P(OR.sup.1).sub.2 wherein R.sup.1 and Z are different substituted or unsubstituted aryl groups.

    摘要翻译: 一种制备式(R 1 O)2 P(OZO)P(OR 1)2)的有机亚磷酸酯的方法,其中R1和Z是不同的取代或未取代的芳基。

    Polymeric compositions for nonlinear optics
    59.
    发明授权
    Polymeric compositions for nonlinear optics 失效
    非线性光学聚合物组合物

    公开(公告)号:US5272218A

    公开(公告)日:1993-12-21

    申请号:US934063

    申请日:1992-08-21

    CPC分类号: C08F20/36 G02F1/3617

    摘要: Disclosed are polymers which contain NLO dye moieties based upon a barbituric acid group, a thiobarbituric acid group or a 1,3-bis(dicyanomethylene)indan-2-ylidene group. These polymers, after poling, are useful in NLO elements in devices employing nonlinear optics. Also disclosed are various intermediates used in making such polymers.

    摘要翻译: 公开了含有基于巴比土酸基,硫代巴比妥酸基或1,3-双(二氰基亚甲基)茚满-2-亚基的NLO染料部分的聚合物。 这些聚合物在极化后可用于采用非线性光学器件的器件中的NLO元件。 还公开了用于制备这种聚合物的各种中间体。