描述如何在VC6.0下判断USB端口操作，以及如何使用USB COM…

电子称 com serial port-weight check

远程控制远程控制某些数据某些数据某些数据远程控制远程控制某些数据

ADM5120 Network Processor

利用VB写的多线程通讯工具，可以很好的解决串口通讯数据量巨大时阻塞的问题，而且对学习怎样用vb写多线程有很大的帮助-VB write multi-threaded communication tools, can solve serial data communications at a huge obstruction to the problem, but learning how to use Visual Basic to write multithreaded be of great help

手机编程代码，发送简单的短消息，只是简单的原理操作，具体根据个人需要再开发-Cell phone programming code, send simple text messages, but simply the principle of operation, specifically in accordance with individual needs to develop

ISO 13239为关于HDLC协议的国际标准，详细定义了HDLC的内容，通过该协议可以完成标准的HDLC编程-ISO 13239 for HDLC agreement on international standards, a detailed definition of the content of HDLC, adoption of the agreement will be completed standard HDLC Programming

文章讨论了用DFT法实现数字滤波时存在的若干问题-Article discussed the use of DFT method when digital filtering realize the existence of a number of issues

（基于H.323协议族）voip综述及常用算法实现。-(Based on the H.323 protocol suite) voip Summary and commonly used algorithm.

误码率计算程序，可以实现简单的误码率计算。对初学者有用-bit error rate calculation program, can achieve a simple error rate. Useful for beginners

SECS I, SECS II协议通讯源码-SECS I, SECS II agreement communication source code