Systems and methods to distribute software for client receivers of a content distribution system
    5.
    发明申请
    Systems and methods to distribute software for client receivers of a content distribution system 审中-公开
    为内容分发系统的客户接收者分发软件的系统和方法

    公开(公告)号:US20090158273A1

    公开(公告)日:2009-06-18

    申请号:US12002716

    申请日:2007-12-18

    CPC classification number: G06F8/65

    Abstract: A content distribution system employs IP multicast techniques to facilitate in identifying software dynamically, and to facilitate in downloading the software from the appropriate server to diverse client receivers. The clients monitor multicasts from a server and utilize a master/slave hierarchy technique to assist in requesting desired software blocks. The server sends out multicasts with payloads that identity, for example, manufacturers and model numbers of client receivers. The client receivers can then listen and download the payloads that pertain to their specific models. The master/slave technique allows only a master client receiver to request software blocks. Once fulfilled, the master status can be passed to another client receiver to request software blocks.

    Abstract translation: 内容分发系统采用IP组播技术来动态地识别软件,并且便于将软件从适当的服务器下载到不同的客户接收机。 客户端监视来自服务器的组播,并利用主/从分层技术来协助请求所需的软件块。 服务器发送具有身份的有效载荷的组播,例如,制造商和客户端接收器的型号。 然后,客户接收器可以监听和下载与其特定型号相关的有效载荷。 主/从技术只允许主客户机接收器请求软件块。 一旦满足,主状态可以传递给另一个客户端接收器以请求软件块。

    Method and apparatus for enhancing an infrared signal protocol
    9.
    发明授权
    Method and apparatus for enhancing an infrared signal protocol 失效
    用于增强红外信号协议的方法和装置

    公开(公告)号:US07054361B1

    公开(公告)日:2006-05-30

    申请号:US09585803

    申请日:2000-05-31

    CPC classification number: H04L25/4902

    Abstract: An apparatus and method for providing control signals, comprising a processor coupled to a memory, for generating a signal sequence. The processor encodes the signal sequence into a plurality of symbols using a 5 pulse position modulated (5 PPM) scheme. Advantageously, the last position of each symbol encoded under the 5 PPM scheme is set to a low bit. The symbol sequence represents a signaling protocol having a payload portion and a header portion, wherein the header portion comprises a plurality of fields for defining the payload portion. The payload portion indicates keyboard characters or coordinates for a pointing device.

    Abstract translation: 一种用于提供控制信号的装置和方法,包括耦合到存储器的处理器,用于生成信号序列。 处理器使用5脉冲位置调制(5PPM)方案将信号序列编码成多个符号。 有利地,在5PPM方案下编码的每个符号的最后位置被设置为低位。 符号序列表示具有有效载荷部分和报头部分的信令协议,其中报头部分包括用于定义有效载荷部分的多个字段。 有效载荷部分表示指点设备的键盘字符或坐标。

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