Method for monitoring symmetrical two-wire bus lines and two-wire bus
interfaces and device for carrying out the method
    15.
    发明授权
    Method for monitoring symmetrical two-wire bus lines and two-wire bus interfaces and device for carrying out the method 失效
    用于监控对称双线总线和双线总线接口的方法以及用于执行该方法的设备

    公开(公告)号:US5452308A

    公开(公告)日:1995-09-19

    申请号:US43487

    申请日:1993-04-06

    IPC分类号: H04L12/24 H04L12/26 G06F11/00

    摘要: A method for monitoring symmetrical two-wire bus lines and two-wire bus interfaces and a device for carrying out the method provides pulse weighting of low to high transitions or high to low transitions of the two wires operated in phase opposition of a two-wire bus line. The pulse chains thus obtained are used for step sequencing. In each case, one multistep shift function which is assigned to the first bus wire, is supplied with a first, constant logic read in state and can be reset to a second logic state in all-step fashion and, for all-step resetting of a similar second multistep shift function assigned to the second bus while, and vice versa, the step last achieved for each multistep shift function characterizing the respective fault state of the other bus wire. The pulse weighting is achieved by differentiation or high-pass filtering or by pulse generation controlled by state transition. For the pulse weighting, the device uses simple RC elements or edge-controlled monostable times, and for the multistep shift functions, two similar shift registers are used which can be loaded serially and clocked and reset in parallel and which can also be realized in one piece as a component of a monolithic semiconductor circuit by the previously mentioned elements. The device has a fault tolerance which can be programmed with respect to the bit width, and in conjunction with a likewise settable input cutoff frequency permits the decentralized local testing of two wire bus-type networks. The device can be made using CMOS technology, in conjunction with a very low space requirement.

    摘要翻译: 用于监测对称的双线总线和两线总线接口的方法以及用于执行该方法的装置提供脉冲加权,该两个线路与两线相反地操作的两根线的低至高转变或高到低转变 公车线。 由此获得的脉冲串用于步骤测序。 在每种情况下,分配给第一总线的一个多步移位功能被提供有第一恒定逻辑读入状态,并且可以以全部步骤的方式复位到第二逻辑状态,并且对于全步重置 分配给第二总线的类似的第二多步移位功能,反之亦然,对于表征另一母线的相应故障状态的每个多步移位功能,最后获得的步骤。 通过微分或高通滤波或通过状态转换控制的脉冲发生实现脉冲加权。 对于脉冲加权,器件使用简单的RC元件或边沿控制的单稳态时间,对于多步移位函数,使用两个类似的移位寄存器,可以串行和时钟加载并且并行复位,也可以在一个 作为单片半导体电路的组件,由前述元件构成。 该器件具有可以相对于位宽度编程的容错,并且结合同样可设置的输入截止频率允许两个有线总线型网络的分散式本地测试。 该器件可以使用CMOS技术制造,结合非常低的空间要求。

    Hydrophylic, olefinically unsaturated polyurethanes and their use as
reactive emulsifiers
    16.
    发明授权
    Hydrophylic, olefinically unsaturated polyurethanes and their use as reactive emulsifiers 失效
    羟丙基,烯丙基不饱和聚氨酯及其作为反应性乳化剂的用途

    公开(公告)号:US5189133A

    公开(公告)日:1993-02-23

    申请号:US839454

    申请日:1992-02-20

    摘要: The present invention relates to hydrophilic polyurethanes having a content of (i) olefinic double bonds (expressed as C.dbd.C, molecular weight 24) of at least 1.0% by weight and (ii) ethylene oxide units incorporated through polyethylene glycol of 20 to 80% by weight, which are based on the reaction product ofa) 1.0 mole of a polyisocyanate component consisting of at least one organic polyisocyanate withb) 0.3 to 2.5 moles of at least one .beta.,.gamma.-ethylenically unsaturated ether alcohol containing 5 to 29 carbon atoms,c) 0 to 1.0 mole of at least one synthesis component containing at least two isocyanate-reactive groups and having a molecular weight of 62 to 2,000 andd) 0.25 to 0.85 moles of a polyethylene glycol component containing at least one polyethylene glycol having a molecular weight of 1,300 to 5,000,at an NCO/OH equivalent ratio, based on starting components a) to d), of 0.7:1 to 1.2:1.The present invention also relates to a water-dispersible coating composition based on a mixture of radical-curable synthetic resins containing unsaturated groups wherein the mixture containsA) 50 to 95 parts by weight of at least one non-water-dispersible synthetic resin containing unsaturated groups and having a molecular weight (M.sub.n of 500 to 10,000 andB) 5 to 95 parts by weight of a polyurethane component which possesses sufficient hydrophilicity to ensure the dispersibility of the mixture in water and which contains at least one of the previously mentioned hydrophilic polyurethanes.

    摘要翻译: 本发明涉及具有(i)烯属双键(表示为C = C,分子量24)至少为1.0重量%的亲水性聚氨酯,和(ii)通过20至80的聚乙二醇掺入的环氧乙烷单元 重量百分比,其基于a)1.0摩尔由至少一种有机多异氰酸酯组成的多异氰酸酯组分与b)0.3至2.5摩尔至少一种含有5至29个的β,γ-烯属不饱和醚醇的反应产物 碳原子,c)0至1.0摩尔至少一种含有至少两个异氰酸酯反应性基团并且分子量为62至2,000的合成组分和d)0.25至0.85摩尔含有至少一种聚乙二醇的聚乙二醇组分 基于起始组分a)至d),分子量为1,300至5,000,NCO / OH当量比为0.7:1至1.2:1。 本发明还涉及一种基于含有不饱和基团的自由基可固化合成树脂的混合物的水分散性涂料组合物,其中混合物含有A)50至95重量份的至少一种含不饱和的非水分散性合成树脂 基团,分子量(Mn = 500〜10000和B)5〜95重量份具有足够亲水性的聚氨酯成分,确保混合物在水中的分散性,并含有至少一种前述亲水性聚氨酯 。