公开(公告)号：US06222285B1

公开(公告)日：2001-04-24

申请号：US09391283

申请日：1999-09-07

申请人： Edward M. Haley ,  James M. Robitaille ,  Robert L. Crevling, Jr. ,  Mark E. Baer

发明人： Edward M. Haley ,  James M. Robitaille ,  Robert L. Crevling, Jr. ,  Mark E. Baer

IPC分类号： H01H4720

CPC分类号： H02P25/14 ,  A47L7/0095 ,  A47L9/2805 ,  A47L9/2842 ,  A47L9/2868 ,  Y10T307/461 ,  Y10T307/469 ,  Y10T307/826 ,  Y10T307/852

摘要： A sensing circuit is useful with a power outlet and a power tool having power supplied thereto via the power outlet. The sensing circuit includes a generator, a transmitter, and a detector. A first signal having a high frequency is developed by the generator and supplied to a first terminal of the power outlet by the transmitter. The detector is coupled to the second terminal of the power outlet and tuned in accordance with the high frequency to develop a second signal indicative of whether the power tool is coupled to the power outlet. The sensing circuit may be used in conjunction with a regulating circuit and a two-position switch useful for controlling the electrical energy supplied to the power tool and a vacuum cleaner having the power outlet disposed thereon.

摘要翻译： 感测电路对于电源插座和具有通过电源插座供电的电源的电动工具是有用的。 感测电路包括发生器，发射器和检测器。 具有高频率的第一信号由发生器产生并由发射器提供给电源插座的第一端子。 检测器耦合到电源插座的第二端子并根据高频进行调谐，以产生指示电动工具是否耦合到电源插座的第二信号。 感测电路可以与调节电路和用于控制供给电动工具的电能的双位置开关和具有设置在其上的电力出口的真空吸尘器一起使用。

公开(公告)号：US06314378B1

公开(公告)日：2001-11-06

申请号：US09164804

申请日：1998-10-01

申请人： James Graham Hodge ,  Roger Anthony Sutton

发明人： James Graham Hodge ,  Roger Anthony Sutton

IPC分类号： H01H4720

CPC分类号： H02J3/14 ,  Y02B70/3225 ,  Y04S20/222 ,  Y10T307/852

摘要： A method of increasing the system stability of an electricity supply network including the steps of locating programmable frequency sensitive relays at load shedding points within the network. Each relay controls one or more loads and contains programmable disconnect and reconnect conditions. One or more of the loads are disconnected from the network upon a relay detecting the programmable disconnect conditions. Each relay reconnects the load to the network when it detects the programmable reconnect conditions. Each relay includes a device for detecting the network frequency, a micro-processor including memory and software and a switching mechanism to disconnect and reconnect one or more of the loads. Each relay is programmed from a centralized network stability manager which can designate programmable conditions for each relay. The communications between each relay and the stability manager can be via broadcast or sequential point-to-point communications.

摘要翻译： 一种增加供电网络的系统稳定性的方法，包括以下步骤：将可编程频率敏感继电器定位在网络内的负载点。 每个继电器控制一个或多个负载，并包含可编程断开和重新连接条件。 当继电器检测到可编程断开条件时，一个或多个负载与网络断开连接。 当检测到可编程的重新连接条件时，每个继电器将负载重新连接到网络。 每个继电器包括用于检测网络频率的装置，包括存储器和软件的微处理器以及用于断开和重新连接一个或多个负载的切换机构。 每个继电器由集中式网络稳定管理器编程，可以为每个继电器指定可编程条件。 每个继电器和稳定性管理器之间的通信可以通过广播或连续的点对点通信。

公开(公告)号：US06285296B1

公开(公告)日：2001-09-04

申请号：US08337095

申请日：1994-11-10

申请人： Scott Christie

发明人： Scott Christie

IPC分类号： H01H4720

CPC分类号： B60R25/24 ,  G07C9/00182 ,  G07C2009/00555 ,  G07C2009/00769 ,  G07C2209/62

摘要： A remote-control vehicle lock-and-alarm system provides improved security against “code-grabber” devices used to detect and counterfeit the codes used by a vehicle lock-and-alarm system. Two sets of control codes are provided. One set of control codes that does not affect the security status of the lock-and-alarm system is transmitted over a maximum range, for the sake of convenience. The other set of control codes is used for critical security features which change the security status of the lock-and-alarm system and is transmitted over a much shorter range to prevent detection and counterfeiting of the control codes.

摘要翻译： 遥控车辆锁定和报警系统提供了改进的“代码捕获”设备的安全性，用于检测和伪造车辆锁定和报警系统使用的代码。 提供两组控制代码。 为了方便起见，在最大范围内传输一组不影响锁定和报警系统的安全状态的控制代码。 另一套控制代码用于关键的安全特性，可改变锁定和报警系统的安全状态，并在较短的范围内传输，以防止检测和伪造控制代码。