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1. 发明申请

WO1998026500A1 AMPLIFIER SWITCH CONTROLLER AND SYSTEM 审中-公开
标题翻译：放大器开关控制器和系统
公开(公告)号：WO1998026500A1
公开(公告)日：1998-06-18
申请号：PCT/US1997022745
申请日：1997-12-09
申请人： ADC TELECOMMUNICATIONS, INC.
发明人： ADC TELECOMMUNICATIONS, INC. , SIT, Eric, K. , KELLER, John, C. , BROWN, Jeffrey, O. , MELINE, Rueben, W. , DANZINGER, Leah, E. , BLUBAND, Zakhary , ORTBERG, Todd, C.
IPC分类号： H03F01/52
CPC分类号： H03F1/526 , H03F2203/7236
摘要： An amplifier switch controller is provided for use in a headend cable transmission system having first and second amplifiers and amplifier input and output paths connected to one of the first and second amplifiers, which becomes the currently activated amplifier. The amplifier switch controller comprises an input sampler for sampling a combined signal on the input signal path and measuring an input signal level. The amplifier switch controller also comprises an output sampler for sampling the amplified combined signal on the output signal path and measuring an output signal level. A program means receives the input and output signal levels and determines whether the currently activated amplifier is not functioning properly. If it is not functioning properly, the program means generates a control signal to a switch. In response to the control signals, the switch disconnects the input and output signal paths from the currently activated amplifier and connects each of the input and output signal paths to the other one of the first and second amplifiers.
摘要翻译：提供放大器开关控制器，用于具有第一和第二放大器的前端电缆传输系统，以及连接到第一和第二放大器之一的放大器输入和输出路径，其成为当前激活的放大器。放大器开关控制器包括用于对输入信号路径上的组合信号进行采样并测量输入信号电平的输入采样器。放大器开关控制器还包括输出采样器，用于对输出信号路径上的放大的组合信号进行采样并测量输出信号电平。程序装置接收输入和输出信号电平并确定当前激活的放大器是否不能正常工作。如果它不能正常工作，则程序意味着产生一个到开关的控制信号。响应于控制信号，开关断开来自当前激活的放大器的输入和输出信号路径，并将每个输入和输出信号路径连接到第一和第二放大器中的另一个。

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