公开(公告)号：US5416464A

公开(公告)日：1995-05-16

申请号：US51173

申请日：1993-04-22

申请人： Peter D. Rimback ,  Danut D. Voiculescu ,  John Rutkoski ,  Louis D. Carlo

发明人： Peter D. Rimback ,  Danut D. Voiculescu ,  John Rutkoski ,  Louis D. Carlo

IPC分类号： B60R25/10 ,  G01S13/04 ,  G08B13/24 ,  B62H5/00

CPC分类号： G01S13/04 ,  B60R25/1009 ,  G08B13/2491

摘要： A vehicle anti-theft alarm system comprises a microwave transmitter and receiver for transmitting microwave frequency signals from one location in the vehicle against a target in the vehicle at a given distance from the transmitter-receiver and for receiving the signals reflected back from the target and producing a monitoring signal representative of a time, frequency or distance parameter for sending and receiving the signals. If, for example, an object is interposed in the path of the transmitted signals, the parameter and thus the monitoring signal changes and a control signal is produced for actuating an alarm. A holding circuit provides for the alarm to remain actuated when the article is removed from the path of the transmitted signals.

摘要翻译： 车辆防盗报警系统包括微波发射器和接收器，用于从车辆中的一个位置发送微波频率信号，以相对于来自发射机 - 接收机的给定距离的车辆中的目标，并且用于接收从目标反射回来的信号，以及 产生表示用于发送和接收信号的时间，频率或距离参数的监视信号。 例如，如果物体被插入在所发送的信号的路径中，则参数以及因此的监视信号改变，并产生用于启动报警的控制信号。 保持电路提供了当物品从传输信号的路径移除时警报器保持致动。