Abstract: This paper makes an improvement on a MPEG video card of USB interface.With the improvement,the MPEG video card of USB interface can gather RF and AV signal at the same time.It is proved by test that the card works stably and may get high quality images.

摘要： 文章对一种USB接口的MPEG视频卡进行了改进与扩容,使其成为能多路同时采集射频信号和视频信号的USB接口视频卡。测试表明，改进后该卡工作稳定，图像效果较好。

关键词: USB, MPEG视频卡, 视频信号

CLC Number: 

• TP334.7