A Cost-effective Hd Stream Playback Instrument Development

With the development of digital television broadcasting, the tastes of the viewers are improving, which results in the higher demand on picture quality and artistic effects. HDTV's development brings the hope to these viewers . Most of the big TV manufacturers have been promoting their own HDTV to keep pace with the digital innovation of the whole television broadcasting system. However, during promoting HDTV, it is found that these HDTV can not perfectly display "High Definition" with traditional signal program. Under such ircumstances, the high definition digital video player shows its great effects and bright futures.In the preface of this article, it gives the HDTV technical background, the realistic meaning of designing and developing the HDTV digital video player as well as the key contents of this article. In the first chapter, it introduces the system structure of this HDTV digital video player, the structure and functions of the main IC Xilleon 225 as well as the rough flow of the software program. It also gives brief introduction of the hard disc program display function module and detailed analysis of the hard disc program display functions which include MPEG-2 theory, video decoder, audio decoder and system structure as well as how they perform. Then it introduces the possible extended functions of this video displayer, which include the extension of USB, and IEEE1394. In the last chapter, there is a conclusion of the main tasks the author has done during the development of this HDTV digital video player.The HDTV digital video player which the author has developed is on the market now, and getting high praises from the end users for its performance and price for value. Therefore, this topic the author selects is bringing great benefits to the society.