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    • 4. 发明授权
    • Process and device to measure the signal quality of a digital information transmission system
    • 测量数字信息传输系统信号质量的过程和设备
    • US06606354B1
    • 2003-08-12
    • US09427102
    • 1999-10-26
    • Roland BachHelmut DollingerWolfgang Hoyer
    • Roland BachHelmut DollingerWolfgang Hoyer
    • H04B1700
    • H03L7/07H04L1/20
    • The process to measure the signal quality of a digital information transmission system using a scanning device with adjustable direct current threshold can determine a signal parameter for the signal quality (Q-factor), which can determine the bit-rate from an unknown input signal and with its help a clock signal can be generated to scan the input signal with the scanning device. The device includes a detection device as well as a clock generator, which is connected to the detection device and receives a pre-adjustment signal, and which synchronizes with the input signal over a phase locked loop with the scanning device through phase comparison. Process and device allow the monitoring of systems in a shortest time and facilitate statements concerning the bit-rate of the respective line section as well as concerning the size of the Q-factor and all relating variables.
    • 使用具有可调节直流阈值的扫描装置测量数字信息传输系统的信号质量的过程可以确定信号质量(Q因子)的信号参数,其可以从未知输入信号确定比特率, 借助其可以产生时钟信号,以扫描扫描装置的输入信号。 该装置包括检测装置以及时钟发生器,其连接到检​​测装置并接收预调整信号,并通过相位比较与扫描装置通过锁相环与输入信号同步。 过程和设备允许在最短时间内对系统进行监控,并且便于关于相应线路段的比特率的说明以及与Q因子的大小和所有相关变量的关系。