System for increasing the capacity of existing local area networks that
use shielded twisted wire pair medium
    5.
    发明授权
    System for increasing the capacity of existing local area networks that use shielded twisted wire pair medium 失效
    用于增加使用屏蔽双绞线介质的现有局域网的容量的系统

    公开(公告)号:US5517487A

    公开(公告)日:1996-05-14

    申请号:US93212

    申请日:1993-07-19

    摘要: The data communication capacity of an existing local area network (LAN) 10 that uses a shielded twisted wire pair 16 as its transmission medium may be increased with the addition of special frequency selective terminators 36 and single-ended transceivers 20. The single-ended transceivers 20 have two single-ended transmitter connections 42,44 to the two twisted wires 22,24 in the shielded twisted wire pair medium 16, respectively, and one single-ended receiver connection 46 to one of the two twisted wires 22,24 in the shielded twisted wire pair medium 16. The shielded twisted wire pair medium 16 is terminated by the special frequency selective terminators 36 which provide transmission line impedance matching over the signal bandwidth of a single-ended data channel, while providing a high impedance over the signal bandwidth of a differential data channel. Thus, differential data communications are allowed over the signal bandwidth of the differential data channel, while single-ended data communications are allowed over the signal bandwidth of the single-ended data channel, thereby increasing the overall data communication capacity of the LAN.

    摘要翻译: 使用屏蔽双绞线对16作为其传输介质的现有局域网(LAN)10的数据通信容量可以通过添加特殊的频率选择终端器36和单端收发器20来增加。单端收发器 20具有分别在屏蔽双绞线对介质16中的两个双绞线22,24的两个单端发射器连接42,44,以及一个单端接收器连接46,其中两条绞合线22,24中的一条 屏蔽双绞线对介质16.屏蔽双绞线对介质16由特殊频率选择终端器36终止,其在单端数据信道的信号带宽上提供传输线阻抗匹配,同时在信号带宽上提供高阻抗 的差分数据通道。 因此,允许差分数据通信在差分数据信道的信号带宽上,而单端数据通信允许在单端数据信道的信号带宽上,从而增加LAN的总体数据通信容量。

    PORTABLE POWER MANAGER
    8.
    发明申请
    PORTABLE POWER MANAGER 有权
    便携式电源管理器

    公开(公告)号:US20120151240A1

    公开(公告)日:2012-06-14

    申请号:US12815994

    申请日:2010-06-15

    IPC分类号: G06F1/26 H02J1/00

    摘要: A portable DC power manager (400) includes an internal power bus (410) and a plurality of device ports (1150, 1160, 1170, 1180, 1190, 1200) for connecting with external power and energy sources, external power loads and other external power managers. Each device port is isolated for the internal power bus by controllable switches (A, B, C, D). Power converters (440, 442, 510) may be disposed between device ports and the internal power bus to convert voltages and attenuate current amplitude. Energy management schema operating on the power manager sums available power and allocates the available power to connected power loads according to power priority settings. A hot-change-over circuit (1300) connects additional sources to the internal bus in response to a voltage drop on the internal power bus. A compact and lightweight package (1100) enables a portability.

    摘要翻译: 便携式直流电源管理器(400)包括内部电力总线(410)和用于与外部电力和能量源,外部电力负载和其它外部电力连接的多个设备端口(1150,1160,1170,1180,1190,1200) 电力经理。 每个设备端口通过可控开关(A,B,C,D)与内部电源总线隔离。 功率转换器(440,442,510)可以设置在器件端口和内部电源总线之间,以转换电压并衰减电流幅度。 在功率管理器上运行的能源管理模式将可用功率相加,并根据功率优先级设置为连接的功率负载分配可用功率。 热转换电路(1300)响应于内部电源总线上的电压降将额外的源连接到内部总线。 一个紧凑轻便的包装(1100)实现了便携性。