提出了一种对模拟语音信号进行数字化录音的方法，并将其应用于电话录音系统中。
This paper proposes a digital recording method for analogue audio signals, and applies it to a telephone recording system.
蜂窝数字分组数据（CDPD）系统是基于模拟蜂窝电话网的无线分组数据通信系统。
The cellular digital packet data(CDPD) system is a wireless packet communication system based on analog cellular telephone networks.
通过PC机与ARM仿真板的通信对本文实现的系统进行了仿真模拟实验，对可视电话的基本功能和性能进行了测试。
Simulation test is performed by communication between PC and ARM emulator to evaluate the function and performance of the video phone system.
电话系统是模拟系统，靠的是信号强弱的细微差别。
The phone network is an analog system; fine gradations of signal strength are its essence.
本文研究开发了一模拟电话费查询系统，可以查总话费、市话费的详细情况及长话费的详细情况，查询的结果可打印。
An inquire system for telephone fee is developed in the paper, which can inquire the total fee and the details of local telephone and long distance telephone. The result of the inquiry can be printed.
传统的远程数据采集系统通常采用模拟电话或微波进行数据传输。
Telephone and microwave are used in the traditional methods of data transmission.
传统的远程数据采集系统通常采用模拟电话或微波进行数据传输。
Telephone and microwave are used in the traditional methods of data transmission.
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