Design And Implement Of The Standard EPG On The DVB Set-Top-Box

The Broad-Access based the DVB-Cable is highly developed on the Cable-TV which is popular in our country. So the Set-Top-Box as the terminal of digital TV is quickly walking into our life.The Set-Top-Box is the device that is directly facing the user. Recently the research emphases of Digital TV are focusing on the technology integration, capability optimize, abundance function of terminal, and more and more research and test come to be true. Many kinds of techniques also piles up one after another. The customer terminal function is increasingly abundant.Electronic Program Guide as the core technology of STB is very important in the Digital TV System. But currently Chinese Digital TV Standard is not come on. So the research about EPG has very important meaning.EPG makes use of the SI (Service Information) define in the DVB and MPEG-2,such as SDT (Service Description Table),NIT (Network Information Table),EIT (Event Information) etc. And acquires the list of programs and broadcast parameters from the tables. So the user can expediently receive and directly select the listed service.EPG is the kernel of GUI (Graphic User Interface). The STB user can receive the information of the selected service about the total channels, the begin date and duration, description of event, also include the data of whether encrypt, how to pay etc. And the user, according to the date, the program category etc. searches for to line up from the electronics programs form the preface searches for to select which.EPG also supplies the advantageous and standard interfaces for another added operations. Such as CAS (Conditional Access System), data broadcast etc.Based on the analysis,this article provides a template of design and implement of the standard EPG on the DVB Set-Top-Box. The system passed the strict test. It has achieved its market profit.