有关编程的一些资料，与大家共享

backup of my rom in pda in my head

This the Bluetooth Chat server. The server part runs and establishes connection with client-This is the Bluetooth Chat server. The server part runs and establishes connection with client

本文主要阐述了DTMF的原理及如何在MATLAB上产生DTMF信号，主要涉及到电话拨号音合成的基本原理及识别的主要方法，利用 MATLAB 软件以及 FFT 算法实现对电话通信系统中拨号音的合成与识别。并进一步利用 MATLAB 中的图形用户界面 GUI 制作简单直观的模拟界面。 能够利用矩阵不同的基频合成 0 － 9 不同按键的拨号音，并能够对不同的拨号音加以正确的识别，实现由拨号音解析出电话号码的过程，完成对电话拨号音系统的简单的实验仿真。-This paper described the principle and how DTMF in MATLAB to generate DTMF signals, mainly related to the telephone dial tone of the basic principles of synthesis and identification of the main methods, the use of MATLAB software and the FFT algorithm on the telephone communication system dial tone Synthesis and Recognition . And further the use of MATLAB in the production of graphical user interface simple and intuitive GUI interface simulation. Able to take advantage of matrix synthesis of different fundamental frequency 0- 9 different keys of the dial tone and be able to different dial tone to be the correct identification, the dial tone from a telephone number to resolve the process of completion of the telephone dial tone system, a simple experiment simulation

这是一个控制程序，用于学校英语听力室中老师与学生之间的交互教学。-This is a control procedure for the hearing room school English teachers and students between the interactive teaching.

智能卡研发技术与工程实践 --------------------文件内容说明------------------------- Calg_SHA1.h : SHA1算法头文件 Calg_SHA1.CPP : SHA1算法代码文件 MD5.h : MD5算法头文件 MD5.CPP : MD5算法代码文件 Calg_DES.H : DES算法头文件 Calg_DES.CPP : DES算法代码文件-smart card technology research and engineering practice-------------------- Note contents of the documents----- Calg_SHA1.h : SHA1 algorithm headers Calg_SHA1.CPP : SHA1 algorithm code document MD5.h : MD5 algorithm headers MD5.CPP : MD5 algorithm code Calg_DES.H document : DES algorithm headers Calg _DES.CPP : DES algorithm code documents

一个小的试验，通过在vb环境下设置串口并发送和接收数据的小程序。-a small trial, in vb environment and set up serial transmit and receive data of small procedures.

三菱FX系列PLC编程口通讯和VB源程序,适用于串口通讯,可以使PLC控制更合理，可以自由改动的VB源程序，使用VB6.0编写。

DIGITAL MODULATION TECHNIQUES the material describes digital modulation techniques such as BINARY PHASE SHIFT KEYING (BPSK), DIFFERENTIAL PSK (DPSK), DIFFERENTIALLY-ENCODED PSK (DEPSK), QUADRATURE PSK (QPSK), QUADRATURE AMPLITUDE SHIFT KEYING (Q-ASK), BINARY FREQUENCY-SHIFT KEYING (B-FSK), MINIMUM SHIFT KEYING (MSK),

本文介绍一种新型的基于消息队列的重复型服务器通信软件的设计方法,不同于并发型服务器和一般的重复型服务器通信软件，这种新的软件具有生成的子进程数少的优点，并且轻易对客户机与服务器的连接进行治理，适用于客户机数量较多和随机数据通信的情况，能够有效地提高服务器的运行效率。 -This article describes a new type of duplication based on the message queue server-based communication software design methods, and hair is different from the server and repeat the general type of server software, this new generation of software with a subset of a few of the advantages of the process, and easily client and server for the connection management, applicable to the client a larger number and random data communications, can effectively improve the efficiency of servers.

基于CSerialPort类，增加了RecvBlock方法，一次性读取多个字节，并且改进了无法正常退出的bug。原说明：This class can read, write and watch one serial port.It sends messages to its owner when something happends on the portThe class creates a thread for reading and writing so the mainprogram is not blocked.