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    • 5. 发明授权
    • Remote keyless entry system with two-way long range communication
    • 遥控无钥匙进入系统,双向远程通讯
    • US08026793B2
    • 2011-09-27
    • US10960657
    • 2004-10-07
    • Yi LuoRiad GhabraQingfeng Tang
    • Yi LuoRiad GhabraQingfeng Tang
    • H04Q1/00
    • B60R25/24G07C9/00309G07C2009/00793G07C2209/62H04B1/04
    • Vehicle information (e.g., status information, calibratable parameters, or diagnostic data) is transmitted from a base station mounted in a vehicle to a portable RKE fob via a radio-frequency signal within a specified average field strength limit. A multi-byte vehicle message is formed and then coded into a multi-bit coded message. The multi-bit coded message is framed into a plurality of packets. The radio-frequency signal is wirelessly transmitted from the base station with a plurality of spaced packet windows having a predetermined duty cycle, each packet window including a respective one of the plurality of packets. The radio-frequency signal within each of the packet windows has a predetermined field strength greater than the average field strength limit and a substantially zero field strength between the packet windows. The predetermined duty cycle results in an actual average field strength for transmitting all of the packets not exceeding the average field strength limit.
    • 车辆信息(例如,状态信息,可校准参数或诊断数据)经由指定平均场强限度内的射频信号从安装在车辆中的基站发送到便携式RKE FOB。 形成多字节车辆消息,然后编码成多位编码消息。 多比特编码消息被构成多个分组。 射频信号是从具有预定占空比的多个间隔分组窗口从基站无线发送的,每个分组窗口包括多个分组中的相应一个分组。 每个分组窗口内的射频信号具有大于平均场强限度的预定场强和分组窗口之间基本为零的场强。 预定的占空比导致实际的平均场强,用于传送不超过平均场强极限的所有分组。
    • 8. 发明申请
    • PASSIVE ENTRY SYSTEM AND METHOD FOR A VEHICLE
    • 被动进入系统和车辆的方法
    • US20100308961A1
    • 2010-12-09
    • US12478931
    • 2009-06-05
    • Riad Ghabra
    • Riad Ghabra
    • G05B19/00
    • G07C9/00103B60R25/00G07C9/00309G07C2209/63
    • A passive entry system and method for determining the location of a remote transmitter positioned near a vehicle. The system and method including a transmitter configured to transmit one or more polling sequences. The polling sequences including one or more polling signals indicative of a particular side and/or door of the vehicle. The system and method further including a receiver configured to receive an acknowledgement signal from a remote transmitter in response to one or more of the polling sequences. The system and method also including a controller configured to determine if the remote transmitter is positioned near the first side or second side of the vehicle based upon the acknowledgement signal being in response to the first or second polling sequence.
    • 一种用于确定位于车辆附近的远程发射机的位置的被动进入系统和方法。 该系统和方法包括被配置为传送一个或多个轮询序列的发射机。 轮询序列包括指示车辆的特定侧面和/或门的一个或多个轮询信号。 所述系统和方法还包括接收机,其被配置为响应于所述轮询序列中的一个或多个从远程发射机接收确认信号。 该系统和方法还包括控制器,其被配置为基于响应于第一或第二轮询序列的确认信号来确定远程发射机是否位于车辆的第一侧或第二侧附近。