闻亭DM6446试验箱的代码。视频信号经采集后处理，之后在LCD上还原播放。-Wintech DM6446 chamber code. Video signals are collected and processed, and then restore the playback on the LCD.

调制:将各种数字基带信号转换成适于信道传输的数字调制信号(已调信号或频带信号)。解调:在接收端将收到的数字频带信号还原成数字基带信号. 调制就是将基带信号的频谱搬移到信道通带中或者其中的某个频段上的过程，而解调是将信道中来的频带信号恢复为基带信号的反过程.-Modulation: converts various digital baseband signal to channel suitable for transmission of digital modulation signal (m