RF door activation system
    5.
    发明申请
    RF door activation system 失效
    射频门激活系统

    公开(公告)号:US20050190798A1

    公开(公告)日:2005-09-01

    申请号:US11051310

    申请日:2005-02-04

    摘要: The present invention provides a radio frequency (“RF”) activation system with improved operating capability and ease of installation. Improved responsiveness is provided by the receiver which determines the frame timing of incoming signals and calculates the estimated time of arrival for ensuing frames thus minimizing loss of frame synchronization problems. In one embodiment, this is accomplished by determining the time span of the frame start sequence and using this to determine the frame timing of an incoming RF signal. The receiver also makes corrections for timing errors between the receiver and transmitter by re-synchronizing the receiver with the incoming RF signal.

    摘要翻译: 本发明提供了具有改进的操作能力和易于安装的射频(“RF”)激活系统。 由接收机提供改善的响应性,该接收机确定输入信号的帧定时,并计算随后的帧的估计到达时间,从而最大限度地减少帧同步问题的丢失。 在一个实施例中,这是通过确定帧起始序列的时间间隔并使用其来确定输入RF信号的帧定时来实现的。 接收机还通过将接收机与输入的RF信号重新同步来对接收机和发射机之间的定时误差进行校正。