Middle pull-up point-to-point transceiving bus structure
    41.
    发明授权
    Middle pull-up point-to-point transceiving bus structure 有权
    中上拉点对点收发总线结构

    公开(公告)号:US06838900B2

    公开(公告)日:2005-01-04

    申请号:US09967746

    申请日:2001-09-28

    Abstract: A bus architecture for the application of data transmission between distinct integrated circuits. The bus architecture includes at least one transmission line connecting with I/O pin of ICs for transmitting data. In a middle point of the transmission line, there is a middle resistor with a resistance value preferably equal to the characteristic impedance of the transmission line. In addition, there are internal pull-up resistors within the ICs, which has a first end coupled to the I/O pin and a second end coupled to the voltage source. Each pull-up resistor has a resistance value higher than the characteristic impedance of the transmission line, for example, 2 or 3 times of the characteristic impedance, for suppressing the rising edge ringback.

    Abstract translation: 用于在不同集成电路之间应用数据传输的总线架构。 总线架构包括至少一条与IC的I / O引脚连接的传输线,用于发送数据。 在传输线的中点处,存在电阻值优选等于传输线的特性阻抗的中间电阻。 此外,IC内部有上拉电阻,其具有耦合到I / O引脚的第一端和耦合到电压源的第二端。 每个上拉电阻具有比传输线的特性阻抗高的电阻值,例如特性阻抗的2或3倍,用于抑制上升沿回波。

    Process for producing alumina material for artificial skeleton with high
strength
    42.
    发明授权
    Process for producing alumina material for artificial skeleton with high strength 有权
    生产高强度人造骨架氧化铝材料的方法

    公开(公告)号:US6123912A

    公开(公告)日:2000-09-26

    申请号:US233709

    申请日:1999-01-19

    CPC classification number: A61L27/105 C04B35/111

    Abstract: A process for producing an alumina material with high strength is disclosed. The process for producing an alumina material includes the steps of (a) providing a solution containing a dispersing agent, (b) mixing a .theta.-alumina powder and an .alpha.-alumina powder with the solution to form a slurry, (c) filtering the slurry to form a green part, (d) drying the green part, and (e) densifying the dried green part to form the alumina material.

    Abstract translation: 公开了一种生产具有高强度的氧化铝材料的方法。 制备氧化铝材料的方法包括以下步骤:(a)提供含有分散剂的溶液,(b)将所述溶液中的θ-氧化铝粉末和α-氧化铝粉末混合以形成浆料,(c) 浆料以形成绿色部分,(d)干燥绿色部分,和(e)使干燥的生坯部分致密化以形成氧化铝材料。

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