这是4x4的键盘扫描程序，已验证且灵敏度很高不加上拉，不是扫描方式，只提取特征码。只要4竖线，4横线。-This is a 4x4 keyboard scanner, a high sensitivity has been verified and do not pull with, rather than scanning only signature extraction. As long as 4 vertical, 4 horizontal.

用于指纹识别的C语言程序，包含指纹的特征提取-Fingerprint identification for C language programs, including the fingerprint feature extraction

本科毕业时做的男女左右运动时提取脑电信号的功率谱，是分频提取的，也就是左、右手运动是的不同特征，程序简单易懂，还附有脑电信号、程序说明-Graduate men and women to do about movement of EEG power spectrum is divided extraction, that is, the left and right movement is different features, the program is simple to understa

dsp语音识别程序，居于DSP芯片设计而实现的代码，先录入声音，代码分析提取出其特征存储，之后便可以识别录入的声音-DSP speech recognition program, in the DSP chip design and implementation of the code, the first voice input, code analysis to extract features of storage, then can identify the input sound