SIP体系架构讲义及消息交互演示

点点聊天工具的服务器段，写的过程中加了注释，有助于理解-little chat servers, the process of writing a footnote added, helps to understand

An IEEE 802.15.4 protocol implementation (in nesC/TinyOS):Reference Guide v1.2  芯片是CC2530

卷积编码和译码程序,适合初学者入门，也可以用于通信系统中复杂的的卷积编码。

正交空时块编码和进一步探索这最后一节中说明了，我们目前某些性能的正交空时块编码使用四个结果传输天线 （4 x 1 系统） 使用半速率编码，G4。我们期望的系统提供的 4 和 w 的多样性顺序。

visual basic下进行CRC16算法的源代码.-under the visual basic source code of the CRC16 algorithm.

这是一个通讯软件-This is a communications software

XR17D158V driver for CE5.0 header file

Async Professional 3这个工具包包罗万象：你在DELPHI和C Builder下编写通讯程序的一切。从简单的通讯到发送传真、寻呼以及INTERNET应用，只有Async Professional将所有通讯功能集中一起而又价格公道。Async Professional 3建立于TurboPower早期获得大奖的通讯库，并加入了你所需要的功能。一些强大的新功能包括数字寻呼（甚至基于INTERNET），FTP文件传输，RAS拨号自动脚本，新的高级VT100终端，FAX服务器控件以及其它等等。试用版（只有IDE运行时才工作）。-Async Professional 3 of the tool kit all-inclusive: you DELPHI and C Builder prepared with all the communication process. From simple communication to send a fax, paging and INTERNET applications, only Async Professional all communication functions together and at reasonable prices. Async Professional 3 was established in early TurboPower award-winning communications library, and add the features you need. Some powerful new features including digital paging (even based on the INTERNET), FTP file transfer, RAS dial-up automated scripts, the new senior VT100 terminal, FAX server controls, as well as other and so on. Trial version (only run when the work of IDE).

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。

在VB下面做的一个调用WINIO实现并口通讯的小例子（内含时序配合)-done in VB below the realization of a parallel port call WINIO communications small examples (intron timing tie)