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    Transmission technique for a portable alarm system
    61.
    发明申请
    Transmission technique for a portable alarm system 审中-公开
    便携式报警系统的传输技术

    公开(公告)号：US20060109103A1

    公开(公告)日：2006-05-25

    申请号：US11010728

    申请日：2004-12-13

    申请人： Robert Bradus

    发明人： Robert Bradus

    IPC分类号： G08B1/00 ,  G08B23/00 ,  G08B1/08

    CPC分类号： G08B25/009 ,  G08B25/08 ,  G08B29/16

    摘要： A method is provided for transmitting an alarm message from a portable alarm system to a remote monitoring station. Upon determining an alarm condition, an alarm message is transmitted via a wireless communication link to a remotely located monitoring station. Prior to receiving an acknowledgement regarding the transmission sent over the wireless communication link, the alarm message is also transmitted to the monitoring station using a landline. This approach improves the likelihood that at least one alarm message sent from the alarm system will reach the monitoring station.

    摘要翻译： 提供了一种用于将报警信息从便携式报警系统发送到远程监控站的方法。 在确定报警条件时，通过无线通信链路将报警消息发送到位于远程的监控站。 在接收到关于通过无线通信链路发送的传输的确认之前，也使用固定电话将报警消息发送到监视站。 这种方法提高了从报警系统发送的至少一个报警信息将到达监控站的可能性。

    Microprocessor based motor control
    64.
    再颁专利
    Microprocessor based motor control 失效
    基于微处理器的电机控制

    公开(公告)号：USRE33379E

    公开(公告)日：1990-10-09

    申请号：US283263

    申请日：1988-12-09

    申请人： Robert Bradus

    发明人： Robert Bradus

    IPC分类号： H02P25/14

    CPC分类号： H02P25/145

    摘要： A microprocessor based motor controller which provides open loop speed control at low conduction angles, closed loop speed control at high conduction angles, and a smooth transition between open loop and closed loop zones. In open loop, the motor speed is selected and is permitted to vary with applied load. In closed loop, the motor speed is held constant, substantially irrespective of load. In the transition zone, the motor is operated in a hybrid open loop, closed loop fashion.Anti-kickback protection is also provided based on a percentage change in the motor's rotational period.