1) DTMF signal
DTMF信号
1.
It is a kind of long-distance intelligent controller based on the DTMF signal with multiple functions such as shake-bell examination, pick-up simulation, DTMF signal demodulation, hang-up after no- answer ,etc.
它具有振铃检测和模拟摘机,DTMF信号解调和133秒无响应自动挂机的功能。
2.
It need not special data transmission line and has high reliability when DTMF signal is used in data transmission.
DTMF信号用于数据传输时无需专用数据传输线且可靠性高。
3.
The master control chip uses AT89C51, the communication mode adopts DTMF signal with strong anti-interference and high reliability, and simplex frequency modulation.
主控芯片采用AT89C51单片机,通信方式采用抗干扰能力强、可靠性高的DTMF信号和单工调频的无线通信方式。
2) DTMF signals
DTMF信号
1.
Its performance decides whether the receiver can recognize and decode the input DTMF signals accurately or not.
DTMF信号的出现解决了以往通信系统中传输拨号信息的诸多问题，如速度慢、易受干扰、需要提供直流通路等。
3) DTMF signal data communication
DTMF信号通讯
4) DTMF signal detection
DTMF信号检测
1.
The typical DTMF signal detection system is designed and simulated using MATLAB Link for CCS Development Tools in this paper.
利用MATLAB Link for CCS Development Tools对典型的DTMF信号检测系统进行了仿真设计,给出了设计该DSP系统的步骤和结果。
5) DTMF signal send and receive
DTMF信号收发
6) DTMF dial-up
DTMF拨号
补充资料：11毫米信号枪
该信号枪主要供从事海上执行任务的人员作为救生联系用.
口径:11毫米
全长:116毫米
枪宽:14毫米
枪高:22毫米
全重:0.05千克
发射高度:30米
发射方式:单发
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条