telephone signal

With regard to communication security, the safekeeping of password and real-time processing in speech signal encryption based on triple Data Encryption Standard ( 3DES) were analyzed. In addition, the basic framework of speech encryption and the hardware system design in encryption telephone were presented.

针对通信安全性问题，分析了三重数据加密的密钥保管问题和语音加密的实时处理技术，提出了将算法移植到电话中加密语音信号的系统结构并进行了硬件设计。

Telephone Speech Simulation Using Signal Processing Method

基于信号处理的电话语音模拟

About eighty percent of all people are said to live a wireless telephone signal.

据说世界上80%的人生活在无线电信号的包围之中。

FSK caller signal automatically refresh existing system date and time, DTMF telephone signal to the original system, the time and date settings had no effect.

FSK来电信号自动刷新原有的系统日期时间，DTMF来电信号对原系统的时间，日期的设置无影响。

Ringback music, also called personalized ringback tone, is a piece of music heard by the caller instead of the traditional telephone ring signal when a telephone call is placed.

彩铃，也就是个性化的电话铃音，当有电话响时用一首歌代替了传统的电话铃声。

They lived a low-carbon life, with no mobile telephone signal, no Internet access, and limited electricity-the island just got it two years ago, and not all homes are hooked up yet.

San Miguel岛正在实践低碳生活：没有无线电话讯号、没有互联网、有限度供电。

The objective now is to convert the analog voice ( telephone) signal to a digital signal that may be transmitted electrically.

现在的目标是将声音（电话）信号转化为可用电来传输的数字信号。

In 19803, with the rapid development of the microcomputer except for the original teleprocessing. The common terminal is connected with computer through Rs-232c terminal signal directly instead of the public telephone network and modem.

八十年代随着微型计算机的迅猛发展，除了原来的远距离连接外，一般终端都直接通过RS-232C端号与计算机连接，而不再使用公用话网络和调制解调器。

The RF signal may be a FM telephone signal, a FM television signal or an impulse radar signal.

干扰信号可以是调频电话信号、调频电视信号或脉冲雷达信号。

Toll and local crossbar telephone switching system& Signal marks or colours of lamp and alarm ringer

GB/T2094-1980纵横制长、市话交换设备灯色及警铃信号标志

Radio telephone alarm signal generator

发线电话警报信号发生器

SIP ( Session Initiation Protocol) is one of IP telephone signal protocols, and JAIN SIP Specification is a description of the technique which combines JAVA and SIP.

SIP（session initiation protocol会话启动协议）是一种IP电话信令协议，而JAIN SIP规范描述了JAVA和SIP两种技术的综合。

Only about a third of Nepal is covered by a mobile telephone signal. Internet penetration is a mere 2 per cent.

在尼泊尔，手机信号只覆盖了大约三分之一的地区，互联网普及率仅为2%。

In technical terms, the computer signal is" digital", and the telephone signal is "analog".

用专业术语来说，计算机信号是数字的，而电话信号则是模拟的。

An use of signal tone in the telephone network and statistical characteristic analysis of voice interference with the tone

电话网中信号音的利用及话音对其干扰的统计特性分析

Shirley: Oh, really? I know that telephone signal must have been shielded in the elevator shaft, so what did you do then?

雪莉：噢，是吗？我知道在电梯里，电话的信号是会被屏蔽的，那么你是怎么做的呢？

Suitable for TV, telephone and data signal distant optical transmission;

适用于电视信号、电话语音和数据信号的远距离光纤传输；

We are using this transistor to amplify a telephone signal.

我们正在使用这种晶体管来放大电话信号。

Blind separation of speech signals has become one of the attractive trend in the field of signal processing in recent years, owing that it has a wide application prospect in speech recognition system, computer hearing, mobile speech data communication and television and telephone conference.

因其在语音识别系统、计算机听觉、移动语音数据通信以及电视电话会议中具有广泛的应用前景，近年来日益成为信号处理领域的研究热点之一。

They may be compared to the weak signal coming in over a long-distance telephone line.

它们可以比做经过远距离电话线而来的弱信号.