详细介绍了利用ＣＣｕｂｅ公司新一代ＭＰＥＧ２编解码芯片ＤｖｘｐｅｒｔⅡ开发的ＤＶＢ系统前端的实时编码器，阐述了编码器的硬件和软件设计以及音视频同步、Ｆｉｒｍｗａｒｅ技术和软件分层等关键技术。 This paper introduces in detail the front-end real-time encoder of DVB system developed by CCube’s new generation MPEG2 codec chip DvxpertⅡ, expounds the hardware and software design of the encoder, audio and video synchronization, firmware technology and software layering Key technologies.