Transmit/receive module test system
    62.
    发明授权
    Transmit/receive module test system 失效
    发送/接收模块测试系统

    公开(公告)号:US4949090A

    公开(公告)日:1990-08-14

    申请号:US313492

    申请日:1989-02-22

    CPC分类号: H01Q3/267 H01Q21/0025

    摘要: A phased-array antenna is provided with a dummy antenna element and a dummy transmit/receive module for testing the other transmit/receive modules by transmitting test signals to, or receiving test signals from, the other antenna elements in the array. Test signals are transmitted in a test mode that alternates with normal-mode operation. Receive power level and/or phase can be checked. The transmit/receive modules in the array are simplified in structure and improved in reliability due to the elimination of special receive check circuits. Antenna accuracy can also be improved by adjusting the phase shifters in the transmit/receive modules to compensate for variations in transmission phase.

    摘要翻译: 相控阵天线设置有虚拟天线元件和虚拟发射/接收模块,用于通过将测试信号发射到阵列中的其它天线元件或从阵列中的其它天线元件接收测试信号来测试其它发射/接收模块。 测试信号以与正常模式操作交替的测试模式传输。 可以检查接收功率电平和/或相位。 由于消除了特殊的接收检查电路,阵列中的发射/接收模块结构简化,可靠性提高。 天线精度也可以通过调整发射/接收模块中的移相器来补偿传输相位的变化。

    Magnetic recording/reproduction apparatus
    63.
    发明授权
    Magnetic recording/reproduction apparatus 失效
    磁记录/再现设备

    公开(公告)号:US4845576A

    公开(公告)日:1989-07-04

    申请号:US145701

    申请日:1988-01-15

    摘要: A magnetic recording/reproduction apparatus of the invention has a magnetic head for reading a vertical magnetically recorded signal, an inplane magnetic recorded signal or a magnetic recorded signal having both a vertical magnetic component and an inplane magnetic component and for supplying a reproduced signal, a first analog signal converting circuit for converting the reproduced signal into an analog inplane reproduced signal when the reproduced signal is a vertical reproduced analog signal, a second analog signal converting circuit for bypassing an inplane analog reproduced signal when the reproduced signal is the inplane reproduced analog signal, and a third analog signal converting circuit for converting the reproduced signal into an inplane reproduced analog signal when the reproduced signal is the inplane reproduced analog signal. The circuits are switched to operate selectively in accordance with the type of signals reproduced from a magnetic recording medium.

    摘要翻译: 本发明的磁记录/再现装置具有用于读取垂直磁记录信号的磁头,内平面磁记录信号或具有垂直磁分量和内平面磁分量的磁记录信号,并用于提供再现信号, 第一模拟信号转换电路,用于当再现信号是垂直再现模拟信号时将再现信号转换为模拟内置再现信号;第二模拟信号转换电路,用于在再现信号是内置再现模拟信号时旁路内部模拟再现信号 以及第三模拟信号转换电路,用于当再现信号是平面内再现的模拟信号时,将再现信号转换为内平面再现的模拟信号。 根据从磁记录介质再现的信号的类型,切换电路以选择性地工作。

    Maintenance Method and Component Mounter
    70.
    发明申请
    Maintenance Method and Component Mounter 审中-公开
    维护方法和组件贴片机

    公开(公告)号:US20080147232A1

    公开(公告)日:2008-06-19

    申请号:US11663359

    申请日:2005-09-21

    IPC分类号: H05K3/30 G06F19/00

    摘要: Provided is a maintenance method which makes it possible to collectively and quantitatively detect maintenance timings of parts included in respective devices in a component mounter. A management apparatus determines a position of an equipped device using a RF-tag reader/writer (S1001). Then, from the RF tag, the RF-tag reader/writer obtains maintenance information regarding parts in the device (S1002). Then, the determination unit determines a maintenance timing of each of the parts, by comparing maintenance information recorded in a maintenance reference information storage unit to the maintenance information of each part which has been obtained at S1002 (S1003). Next, if it is not yet the maintenance timing (NO at S1003), then the determination unit (608) ends the determining processing. On the other hand, if it is the maintenance timing (YES at S1003), then the determination unit (608) instructs a warning unit to provide warning (S1004) and stops driving of the component mounter.

    摘要翻译: 提供了一种维护方法,其使得可以集中和定量地检测组件安装机中各个设备中包括的部件的维护定时。 管理装置使用RF标签读写器确定配备的装置的位置(S 1001)。 然后,RF标签读取器/写入器从RF标签获取有关设备中的部件的维护信息(S1002)。 然后,确定单元通过将记录在维护参考信息存储单元中的维护信息与在S 1002处获得的每个部件的维护信息进行比较(S1003),来确定每个部件的维护定时。 接下来,如果还没有维护定时(步骤S1003为“否”),则确定单元(608)结束确定处理。 另一方面,如果是维护定时(步骤S1003为“是”),则判定单元608指示警告单元提供警告(S1140),停止部件安装器的驱动。