Data Conversion Technology Of Mobile Television Electronic Programme Guide Front System Based On DMB

DMB Mobile TV is an important branch of Digital Television. Electronic Programme Guide (EPG), is a window that users get information from a mass of TV programs, and DMB EPG Front System is indispensable in the DMB Mobile Television EPG Systems., of which, the most important technology is data conversion and transportation. In this paper, we firstly analysis and study a series of protocols, backgrounds, principles of DMB EPG , on the basis of which, the data conversion of DMB EPG Front System is discussed, and the data conversion based on XML and data conversion based on transportation efficiency is designed and implemented. Additionally, a data conversion method based on Schema is presented, the module and algorithm of DMB EPG encoder according to relative protocols is designed ,and the efficiency of three encoding schemes is analyzed and compared.