Passive keyless entry system
    1.
    发明公开
    Passive keyless entry system 失效
    被动无钥匙进入系统

    公开(公告)号:EP0343619A3

    公开(公告)日:1990-06-13

    申请号:EP89109349.4

    申请日:1989-05-24

    IPC分类号: E05B49/00 H04L27/18

    摘要: A passive keyless entry system is specifically adapted for use with automotive vehicles. The system is designed to auto­matically unlock the vehicle (10) as the operator (12) approaches the vehicle. The system is further designed to automatically lock the vehicle as the operator carrying the beacon (24), moves away from the vehicle. The system includes a portable beacon that is carried by the operator, a receiver/controller (100) located in the vehicle, and an antenna connected to the receiver/con­troler (100) for receiving the encoded transmission from the beacon. The beacon includes a motion sensor to conserve battery life when the beacon is stationary. Transmission between the beacon and the receiver/controller is characterized by a magnetically coupled radio frequency signal embodying differ­ential phase encoded data with error correction coding of data to enhance noice immunity and signal discrimination.

    Passive keyless entry system
    2.
    发明公开
    Passive keyless entry system 失效
    PassivesschlüssellosesEangangssystem。

    公开(公告)号:EP0343619A2

    公开(公告)日:1989-11-29

    申请号:EP89109349.4

    申请日:1989-05-24

    IPC分类号: E05B49/00 H04L27/18

    摘要: A passive keyless entry system is specifically adapted for use with automotive vehicles. The system is designed to auto­matically unlock the vehicle (10) as the operator (12) approaches the vehicle. The system is further designed to automatically lock the vehicle as the operator carrying the beacon (24), moves away from the vehicle. The system includes a portable beacon that is carried by the operator, a receiver/controller (100) located in the vehicle, and an antenna connected to the receiver/con­troler (100) for receiving the encoded transmission from the beacon. The beacon includes a motion sensor to conserve battery life when the beacon is stationary. Transmission between the beacon and the receiver/controller is characterized by a magnetically coupled radio frequency signal embodying differ­ential phase encoded data with error correction coding of data to enhance noice immunity and signal discrimination.

    摘要翻译: 无源无钥匙进入系统专门适用于汽车。 该系统设计成当操作者(12)接近车辆时自动解锁车辆(10)。 该系统被进一步设计成当携带信标(24)的操作者离开车辆时自动锁定车辆。 该系统包括由操作员携带的便携式信标,位于车辆中的接收器/控制器(100)以及连接到接收器/控制器(100)的天线,用于从信标接收编码的传输。 信标包括运动传感器,以在信标静止时节省电池寿命。 信标和接收机/控制器之间的传输的特征在于,具有磁耦合的射频信号,其包含差分相位编码数据,具有对数据进行纠错编码以增强噪声抗扰度和信号辨别性能。