dtmf

Identity recognition and automatic playback system based on DTMF mode

基于DTMF方式的身份识别及语音自动播放系统

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The realization of the DTMF circuit using discrete components was presented in this paper.

给出了双音多频发送电路的分立元件实现方法.

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The DTMF generator circuit is straight forward to construct.

DTMF发生器电路可直接构建.

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As an appurtenance of telephone, this remote alarm equipment is used to be an alarm for private house protect based on the transmission of DTMF ( Dual Tone Multiple frequency).

本文设计的电话远程报警器是基于DTMF（双音双频信号）传输、作为电话的附属物而开发的家庭远程报警系统。

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A remote controller based on the AT 89 C 51 , DTMF decoder integrated circuits and ISD 1420 is introduced.

摘要介绍了一种远程智能电话控制器的设计及实现.

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Common Type , DTMF number display type and FSK calling display types available according to the functions.

按功能分为普通型 、 DTMF号码显示型和FSK来电显示型三种.

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The modern program-controlled switcher adopts different versions of hardware in order to provide various resource channels: speech codec channel, DTMF channel, modulation-demodulation channel and so on.

现代程控交换机中为了提供各种资源通道：如语音通道、DTMF通道、语音编码解码通道、调制解调通道等，采用了门类繁多的硬件板型。

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The processing of DTMF signals in CID service includes the generation of CAS signal and the detection of ACK signal.

CID业务流程中涉及到的DTMF信号包括CAS信号和ACK信号，具体的信号处理任务是实现CAS信号的波形产生和ACK信号的波形检测。

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DTMF coding circuit completes DTMF's coding and decoding and signal sound detection.

DTMF编解码电路完成多音双频信号的编码、解码与信号音检测；

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Remote Controller of Air Conditioner Based on DTMF Transmission

基于双音频信号传输的空调远程遥控器

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Application of sound processing technology and DTMF decoding technology in long-distance control

基于语音处理技术及DTMF解码技术的远程控制

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Recently, DTMF is widely used in communication systems, such as Voice Mail, Telephone Banking, ATM Terminals and so on.

近年来，DTMF信号被广泛应用于通信系统中，如语言邮件、电话银行和ATM终端等。

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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。

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Carrier control system based on DTMF

基于DTMF的有线载波控制系统

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Followed is the interaction technology such as DTMF and TTS.

随后介绍了DTMF、 TTS等 交互技术,它们决定了IVR系统 的服务质量.

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This article introduce a method to integrated following functions in a single module: DTMF/ MFC Codec, 2:1 ADPCM speech Codec, IVR, recorder, telephone conference, all these could work simultaneously in 32 channels.

本文提出了一种方案，可以在一个模块上实现32路DTMF/MFC信号的接收、发送，ADPCM语音压缩解压缩、IVR、录音，电话会议。

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The device sends out telecontrol signal by common, which can be used to telecontrol remote household appliances or send out information with DTMF signal as the media of carrying manipulative demand, without setting a special telecontrol device.

本装置使用普通电话机发出遥控命令信号，以DTMF信号作为运载控制命令的媒体，而无需专门安装遥控发送装置，能用于控制远端的家电设备或传送信息。

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Based on the principle of carrier communication, an intelligent control system is presented, which applies single chip microcomputer and DTMF ( Dual Tone Multi Frequency) coding technique to realize remote control of objective load.

根据有线载波通信的原理和双音多频DTMF（Dual Tone Multi Frequency）编码，同时利用单片机实现对目标负载有线遥控的智能控制系统。

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The Clare? 8088 a commercially available DTMF transceiver chip – is used to generate the signal.

克莱尔? 8088-商用的DTMF收发器芯片-是用来产生的信号.

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Therefore, the DTMF signals in the household appliances application of intelligent network is very necessary.

因此, 对DTMF信号在家用电器智能网络中的应用是很有必要的.

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A safety alert system by DTMF ( Dual-tone multifrequency ) mode is introduced.

介绍一种采用DTMF ( Dual -ToneMultifreqency ) 信号方式通信的安全报警系统.

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Realizing the part application of line carrier communication in automobile, designing the line carrier control system based on DTMF coding, and this system is used to control the automobile lighting system.

实现了有线载波通信在汽车中的部分应用，设计了一个基于DTMF信号的有线载波控制系统，将其用于汽车照明系统。

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The alarm system sends in formations by DTMF chip through the telephone net to user and give alarm signal.

智能报警部分利用DTMF芯片通过电话网向用户发送报警信息从而完成智能报警。

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A new-style audio remote tripper is presented, which adopts DTMF ( Dual Tone Multiple Frequency ) technology.

提出了一种新型的 、 用双音频编码实现的音频远方跳闸装置.

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