Search - DTMF Receiver

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[Other resource] RADIO_RE DL : 0: 这个源代码是关于MCS-51的无线接收，用89S52控制MT8870B进行DTMF解码。程序相当的经典，本人调试了几周后，达到了非常好的效果。误码率相当的小。我觉得好东西要大家分享的，所以今天我上传此代码，与大家共同分析进步。-the source code is on the MCS-51 wireless receiver, S52 control with 89 MT8870B for DTMF decoder. Quite the classic procedure, I debug a few weeks later, to achieve very good results. The error rate is very small. I think that good things should be shared, so I upload this code, and the analysis of common progress.
Date : 2008-10-13 Size : 27.07kb User : nick
[Communication] 双音多频（DTMF）接收器的使用源程序 DL : 0: vc 下的双音多频（DTMF）接收器的使用源程序-vc under the dual tone multi-frequency (DTMF) receiver using the source
Date : 2008-10-13 Size : 123.44kb User : 金鹤
[Communication] 双音多频（DTMF）信号发生器的使用源程序 DL : 0: 双音多频（DTMF）信号发生器的使用源程序，vc 编写，与《双音多频（DTMF）接收器的使用源程序》联合用-Dual-Tone Multi-Frequency (DTMF) signals using the generator source, vc preparation, and "Dual-Tone Multi-Frequency (DTMF) receiver to the source using" joint use
Date : 2008-10-13 Size : 118.1kb User : 金鹤
[Communication] 双音多频（DTMF）接收器的使用源程序 DL : 0: vc 下的双音多频（DTMF）接收器的使用源程序-vc under the dual tone multi-frequency (DTMF) receiver using the source
Date : 2025-07-15 Size : 123kb User : 金鹤
[SCM] RADIO_RE DL : 0: 这个源代码是关于MCS-51的无线接收，用89S52控制MT8870B进行DTMF解码。程序相当的经典，本人调试了几周后，达到了非常好的效果。误码率相当的小。我觉得好东西要大家分享的，所以今天我上传此代码，与大家共同分析进步。-the source code is on the MCS-51 wireless receiver, S52 control with 89 MT8870B for DTMF decoder. Quite the classic procedure, I debug a few weeks later, to achieve very good results. The error rate is very small. I think that good things should be shared, so I upload this code, and the analysis of common progress.
Date : 2025-07-15 Size : 27kb User : nick
[SCM] MT8880Code DL : 0: DTMF双向收／发集成电路MT8880专门为双音频信号的收、发而设计，它既能产生发送双音频信号，又能对双音频信号进行接收译码，还能判断各种信号音(拨号音、回铃音、忙音)。以上就是它的应用电路和程序-Two-way DTMF collection/fat MT8880 IC specifically for the dual audio signals received, the design, it could have sent dual audio signal, while the dual audio signal decoding receiver, but also to judge the sound signal (dial tone , ring back tone, busy tone). Above is its application circuit and procedures
Date : 2025-07-15 Size : 53kb User : 徐徐
[SCM] telephone DL : 0: 电话机的工作原理,有振铃电路,电话极性保护电路,还有双音多频发送接收电路-Telephone the working principle, has ringing circuit, Phone polarity protection circuit, as well as send DTMF receiver circuit
Date : 2025-07-15 Size : 56kb User : 徐徐
[SCM] C51andHT9170orHT9200interface DL : 0: ht9200A/ht9170程序双音多频接收发射程序-procedures ht9200A/ht9170 DTMF receiver launches program
Date : 2025-07-15 Size : 1kb User : 老夏
[Communication-Mobile] MT8870DataSheet DL : 0: The MT8870D/MT8870D-1 is a complete DTMF receiver integrating both the bandsplit filter and digital decoder functions. The filter section uses switched capacitor techniques for high and low group filters the decoder uses digital counting techniques to detect and decode all 16 DTMF tonepairs into a 4-bit code. External component count is minimized by on chip provision of a differential input amplifier, clock oscillator and latched three-state bus interface.-The MT8870D/MT8870D-1 is a complete DTMF receiver integrating both the bandsplit filter and digital decoder functions. The filter section uses switched capacitor techniques for high and low group filters the decoder uses digital counting techniques to detect and decode all 16 DTMF tonepairs into a 4-bit code. External component count is minimized by on chip provision of a differential input amplifier, clock oscillator and latched three-state bus interface.
Date : 2025-07-15 Size : 208kb User : far
[matlab] DTMF DL : 0: matlab gui to simulate DTMF receiver and caller
Date : 2025-07-15 Size : 8kb User : tronisha
[Program doc] MV8870 DL : 0: Integraited DTMF receiver chip
Date : 2025-07-15 Size : 97kb User : adis
[SCM] HT9200HT-DTMF51 DL : 0: 基于HT9200A的双音多频接收发射调用程序，集拨号与解码DTMF信号为一体-HT9200A-based dual-tone multi-frequency receiver transmit the caller, set the dial and decoding DTMF signals into one
Date : 2025-07-15 Size : 37kb User : lx
[Software Engineering] 195-dtmf-receiver-ic-mt8870-tester DL : 0: this diagram explain how to connect phone line to caller id circuit
Date : 2025-07-15 Size : 37kb User : ess
[Communication] DTMF DL : 0: 对DTMF电话通信过程的仿真，并通过MATLAB的GUI界面模拟电话拨号，同时考虑信道的信噪比对接收端拨号探测的影响。-Using MATLAB to simulate DTMF telephone communications. Simulate dailing interface by GUI, and consider effect of channel SNR on signal detection at receiver side.
Date : 2025-07-15 Size : 1.08mb User : Wenwen
[SCM] MT8880 DL : 0: C51程序,里面的函数为双音频接收发送芯片MT8880的应用函数-C51 program, which function application function to send the chip MT8880 DTMF receiver
Date : 2025-07-15 Size : 2kb User : LiaoShengZhang
[assembly language] HT95R65_CID_Phone_Code(AN) DL : 0: HT95R65是Holtek推出的两款带CPT 功能的8bit CID Phone单片机。HT95R64、HT95R65均内建硬件DTMF Generator/Receiver 、FSK Decoder和CPT Detector，使其在来电显示电话机或自动录音机上的应用更加方便。 -Holtek HT95R65 is the launch of two new features with CPT 8bit CID Phone MCU. HT95R64, HT95R65 have built-in hardware DTMF Generator/Receiver, FSK Decoder and CPT Detector, so that in the Caller ID telephone or automatic recorder application more convenient.
Date : 2025-07-15 Size : 221kb User : yan wu
[matlab] DTMF DL : 0: 基于MATLAB的双音多频（DTMF）信号的产生、接收以及可视化拨号系统的实现-MATLAB-based dual-tone multi-frequency generation (DTMF) signals, the receiver and dial visualization system
Date : 2025-07-15 Size : 1kb User : 李栋
[Embeded Linux] DTMF-Resiver DL : 0: Code for DTMF receiver
Date : 2025-07-15 Size : 67kb User : arun