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    • 3. 发明授权
    • Method of delivering video information over a telecommunications network
    • 通过电信网络传送视频信息的方法
    • US6009099A
    • 1999-12-28
    • US732167
    • 1996-10-16
    • Stephen LewisK. Martin Stevenson, IIIFarzad S. Nabavi
    • Stephen LewisK. Martin Stevenson, IIIFarzad S. Nabavi
    • H04N7/173H04J3/24
    • H04N7/173
    • A video telecommunications delivery network (10) provides video channels to a plurality of set top units (24). Each set top unit sends a video channel request to an associated cell multiplexing unit (20). If the video channel is available, the cell multiplexing unit (20) provides the video channel to the set top unit (22). If the requested video channel is not available, the cell multiplexing unit (20) passes the request to an associated cell routing unit (18). The cell routing unit (18) provides the requested video channel to the set top unit (22) according to availability. If unavailable, cell routing unit 18 provides the video channel request to a digital multicast bank (16). Digital multicast bank (16) delivers the requested video channel if available, otherwise the video channel request is routed to a video information provider (12) through an asynchronous transfer mode (ATM) switch (14). The video information provider (12) delivers the requested video channel to the digital multi-cast bank (16) through the ATM switch (14) for ultimate delivery to a video subscriber at the set top box.
    • 视频电信传送网络(10)向多个机顶单元(24)提供视频信道。 每个机顶单元向相关联的小区复用单元(20)发送视频信道请求。 如果视频信道可用,则信元复用单元(20)将视频信道提供给机顶单元(22)。 如果请求的视频信道不可用,则信元复用单元(20)将该请求传递给相关联的小区路由单元(18)。 小区路由单元(18)根据可用性将所请求的视频信道提供给机顶单元(22)。 如果不可用,则小区路由单元18向数字组播组(16)提供视频信道请求。 如果可用,数字多播组(16)递送所请求的视频信道,否则视频信道请求通过异步传输模式(ATM)交换机(14)被路由到视频信息提供者(12)。 视频信息提供商(12)通过ATM交换机(14)将所请求的视频频道传送到数字多播银行(16),以最终传送给机顶盒的视频用户。
    • 6. 发明授权
    • Large bore fuel system and fuel injector for same
    • 大口径燃油系统和燃油喷射器相同
    • US08480009B2
    • 2013-07-09
    • US12847386
    • 2010-07-30
    • Christopher D. HansonStephen LewisQursheed Hussain Mohammed
    • Christopher D. HansonStephen LewisQursheed Hussain Mohammed
    • F02D1/06F02M41/16
    • F02M63/0285
    • A low leakage large bore fuel system includes a common rail fluidly connected to at least one of a source of heavy fuel oil and a source of distillate diesel fuel. A plurality of fuel injectors are fluidly connected to the common rail and each include a cooling inlet and a cooling outlet. Each fuel injector also includes an electrical actuator coupled to a direct operated nozzle check valve by a pilot valve member and a control valve member. Fuel leakage is reduced between injection events by equalizing pressures in a pilot control chamber and an intermediate control chamber that are separated by a guide surface of the control valve member. Also, between injection events the pilot valve member blocks a drain outlet from a common rail inlet of the fuel injector.
    • 低泄漏大口径燃料系统包括流体连接到重质燃料源和馏出物柴油燃料源中的至少一个的共轨。 多个燃料喷射器流体地连接到共轨,并且每个包括冷却入口和冷却出口。 每个燃料喷射器还包括通过先导阀构件和控制阀构件联接到直接操作的喷嘴止回阀的电致动器。 通过均压由控制阀构件的引导表面分离的先导控制室和中间控制室中的压力,在喷射事件之间减少燃料泄漏。 此外,在喷射事件之间,先导阀构件阻塞来自燃料喷射器的共轨入口的排出口。