Oriented Research And Realization Of The Digital Tv Set-top Box Embedded Browser

Digital TV not only provides a high-definition digital programs, it also brings more attractive interactive services, such as electronic program guides, video on demand, distance education, interactive entertainment. These include a large of high bandwidth multimedia applications, such as video, audio, pictures. In order to get these informations, the digital STB (set-top box) usually has embedded browser in it.First of all, this thesis analyses the technology, market status and future development trend of embedded browser, then based on the disadvantages of embedded browser and the demands of the project, researching on open-source embedded browser of Konqueror-Embedded model, developing STB embedded browser on MiniGUI, as well as the interface between digital STB and the embedded browser.This thesis introduces the architecture and modules of embedded browser, as well as realization. It focuses on parse modules, image parse module, the user interface module and the design and implementation of adaptation layer of the operating system. Firstly, the parse module in Konqueror-Embedded is adopted, because of its module stability, well-parsing and extensibility, but considering the characteristics of embedded systems, we enhanced the parse module; Secondly, we analyse the embedded image processing technology, we used sub-display image parse module; Thirdly, we chose MiniGUI as GUI module and realized it. Finally, we realized the interface between digital TV Set-top box and the embedded browser.The embedded browser for STB we developped has the advantages of reliability, expansibility, portability. And test report shows that it can meet expectant demands. Its volume and the speed also meet the need of embedded system.