Composite abrasive wheels
    1.
    发明授权
    Composite abrasive wheels 失效
    复合砂轮

    公开(公告)号:US5290903A

    公开(公告)日:1994-03-01

    申请号:US973498

    申请日:1992-11-09

    摘要: A composite abrasive wheel with improved thermal properties is comprised of a fibrous substrate with abrasive particles adhered thereto by a crosslinked polyurethane binder comprising heterocyclic groups. The heterocyclic structures, such as isocyanurate and/or oxazolidone rings, in the binder system improve the thermal properties required for a tough, durable abrasive wheel.

    摘要翻译: 具有改进的热性能的复合砂轮由具有通过包含杂环基团的交联聚氨酯粘合剂粘附在其上的磨料颗粒的纤维基材组成。 在粘合剂体系中的杂环结构如异氰脲酸酯和/或恶唑烷酮环改善了韧性耐用砂轮所需的热性能。

    Serial linked interconnect for summation of multiple waveforms on a
common channel
    2.
    发明授权
    Serial linked interconnect for summation of multiple waveforms on a common channel 失效
    用于在公共通道上求和多个波形的串行链路互连

    公开(公告)号:US5724385A

    公开(公告)日:1998-03-03

    申请号:US316156

    申请日:1994-09-30

    CPC分类号: H04W88/08

    摘要: A modulator for a spread spectrum telecommunication system not only receives local data and processes it, but also receives input data from one or more other modulators, sums the input data with the local data, and provides the sum as data for a subsequent modulator or as final output for a transmit power amplifier. The modulator includes an input block and an output block and, depending on a control data signal, input data will be summed with the internally generated local data of the modulator before being provided to the output block. The output data can include parity data. The parity data can be used to check for faults such as might be introduced, for example, by a faulty connection or broken hard-wired interconnect. If an error is detected, the summation function of the transmit modulator can be automatically disabled.

    摘要翻译: 用于扩频电信系统的调制器不仅接收本地数据并对其进行处理,而且从一个或多个其他调制器接收输入数据,将输入数据与本地数据相加,并将和作为后续调制器的数据或 发射功率放大器的最终输出。 调制器包括输入块和输出块,并且根据控制数据信号,输入数据将在被提供给输出块之前与调制器的内部产生的本地数据相加。 输出数据可以包括奇偶校验数据。 奇偶校验数据可以用于检查诸如可能由故障连接或破坏的硬连线互连引入的故障。 如果检测到错误,则可以自动禁止发送调制器的求和功能。