Non-mixing valve
    11.
    发明授权
    Non-mixing valve 失效
    非混合阀

    公开(公告)号:US4460014A

    公开(公告)日:1984-07-17

    申请号:US255962

    申请日:1981-04-20

    摘要: The disclosure relates to a non-mixing valve intended for sealing between two conduits and comprising two mutually movable valve bodies which are disposed to realize a double seal against the seats located in an opening between the conduits. A leakage chamber is disposed between the two valve bodies for draining-off leakage between the conduits. The seal on the one valve body consists of an axial seal, and the seal on the other valve body cosists of a radial seal. Furthermore, the valve bodies, of which the one is disposed to accommodate the end of the other, are of such configuration as to balance pressure and pressure hammers in the conduits.

    摘要翻译: 本公开涉及一种用于在两个管道之间进行密封的非混合阀,并且包括两个可互换的阀体,这两个阀体设置成实现位于管道之间的开口中的座椅的双重密封。 泄漏室设置在两个阀体之间,用于在管道之间排出泄漏。 一个阀体上的密封件由轴向密封件组成,而另一个阀体上的密封件则是径向密封件。 此外,其中设置为容纳另一个的端部的阀体具有这样的构造,以平衡管道中的压力和压力锤。

    Arrangement and method relating to signal power amplification
    12.
    发明授权
    Arrangement and method relating to signal power amplification 失效
    与信号功率放大有关的布置和方法

    公开(公告)号:US5999057A

    公开(公告)日:1999-12-07

    申请号:US61966

    申请日:1998-04-17

    IPC分类号: H03G3/00 H03G3/10 H03G3/20

    CPC分类号: H03G3/004 H03F1/0233 H03F1/56

    摘要: The power of an input signal is amplified and the power-amplified input signal forms an output signal whose power shall be in agreement with a reference level. The power of the signal is amplified with a power amplification circuit that includes a power amplifier and a control unit. The power amplification circuit also measures the power of the output signal. The control unit generates supply voltages for the transistors of the power amplifier in relation to said reference level, so as to obtain an efficient power amplifier. The control unit regulates the power of the output signal in relation to the reference level and in relation to the power of the output signal, so that the power of the output signal will be in general agreement with said reference level. The power amplifier also includes controllable matching circuits that are controlled by controlled signals generated in relation to said reference level, so as to further improve the efficiency of the power amplifier.

    摘要翻译: 输入信号的功率被放大,功率放大输入信号形成输出信号,其功率与参考电平一致。 信号的功率由包括功率放大器和控制单元的功率放大电路放大。 功率放大电路还测量输出信号的功率。 控制单元相对于所述参考电平产生功率放大器的晶体管的电源电压,以获得有效的功率放大器。 控制单元相对于参考电平和输出信号的功率调节输出信号的功率,使得输出信号的功率与所述参考电平基本一致。 功率放大器还包括由与所述参考电平相关产生的受控信号控制的可控匹配电路,以进一步提高功率放大器的效率。

    Methods and Apparatus for Receiver Quality Test Measurments
    13.
    发明申请
    Methods and Apparatus for Receiver Quality Test Measurments 有权
    接收机质量测试方法和设备

    公开(公告)号:US20130303098A1

    公开(公告)日:2013-11-14

    申请号:US13870405

    申请日:2013-04-25

    IPC分类号: H04B17/00

    摘要: Radio receiver test methods and apparatus are based on known relationships between the quality of a receiver that is measured based on signals before they enter a receiver decoder and the quality that is measured based on signals after the decoder. Thus, a signal generator can be set to transmit a known signal in a predetermined radio scenario (e.g., channel frequency, amplitude, etc.), and samples can be obtained of the receiver-processed known signal before the receiver's decoder. Tests in radio scenarios where noise is the dominant signal disturbance and/or tests in radio scenarios where receiver distortion is the dominant signal disturbance can be performed.

    摘要翻译: 无线电接收机测试方法和设备基于在接收机进入接收机解码器之前基于信号测量的接收机的质量与基于解码器之后的信号测量的质量之间的已知关系。 因此,可以将信号发生器设置为在预定的无线电场景(例如,信道频率,幅度等)中发送已知信号,并且可以在接收机的解码器之前获得接收机处理的已知信号的样本。 在无线电场景中测试噪声是主要信号干扰和/或在无线电情况下测试其中接收机失真是主要信号干扰的测试。