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    • 9. 发明申请
    • ADAPTIVE RANGE VEHICLE LOCATING UNIT, VEHICLE TRACKING UNIT AND VEHICLE RECOVERY SYSTEM INCLUDING SAME
    • 自适应范围车辆定位单元,车辆跟踪单元和包括其中的车辆恢复系统
    • WO2008112131A1
    • 2008-09-18
    • PCT/US2008/003007
    • 2008-03-07
    • LOJACK OPERATING COMPANY, LPKRISHNA, SampathRHODES, Jesse
    • KRISHNA, SampathRHODES, Jesse
    • H04B7/185
    • B60R25/33B60R25/102
    • An adaptive range vehicle recovery system including an adaptive range vehicle locating unit including a narrowband baseband generator for generating a narrowband signal, a wideband baseband generator for generating a wideband signal, a timing control circuit responsive to an activation signal to transmit, alternately, said narrowband signal at a first rate, and said wideband signal at a second rate and responsive to a track signal to transmit one of said wideband and narrowband signals at a third, different, rate, and also to an adaptive range vehicle recovery system including an adaptive range vehicle track unit including a data decoder including, a wideband decoder for detecting data from a wideband baseband signal, a narrowband decoder for detecting data from a narrowband baseband signal, a bandwidth detector responsive to a received signal to distinguish narrowband and wideband signals and an input switching circuit.
    • 一种自适应范围车辆恢复系统,包括:自适应范围车辆定位单元,包括用于产生窄带信号的窄带基带发生器,用于产生宽带信号的宽带基带发生器,响应于激活信号的定时控制电路,交替地发送所述窄带 以第一速率的信号,以及第二速率的所述宽带信号,并且响应于轨道信号以第三不同速率传输所述宽带和窄带信号中的一个,并且还包括自适应范围车辆恢复系统,包括自适应范围 车辆跟踪单元,包括数据解码器,包括用于检测来自宽带基带信号的数据的宽带解码器,用于从窄带基带信号检测数据的窄带解码器,响应于接收信号以区分窄带和宽带信号的带宽检测器以及输入 开关电路。