The Design And Implementation Of USB Digital Broadcasting Receiver Card

Nowadays, each domestic TV stations begin to transfer Digital TV and multimedia service singal to enormous terminal users through coaxial cable, it indicates that Digital TV will be popularized very soon. Providing high quality video and audio programs and abundant multimedia information is crital to DTV industry development, and terminal devices of Digital Video Broadcasting system are windows to show these service information, so the performance of terminal devices directly affects user's impression and support of DTV operator. In the market, there are two kinds of receiver terminal, Set Top Box and Digital Broadcasting Receiver Card, STB interfaces with television, mainly represents the quality of picture and sound of DTV, Digital Broadcasting Receiver Card interfaces with computer to realize multimedia information service of Digital Broadcasting due to powerful processing ability of computer. This thesis mainly discusses the design and implementation of USB Digital Broadcasting Receiver Card. Two main DTV standard from Europe and the United States, development of DTV broadcasting is introduced first, then discuss the systems standard of MPEG-2 and the four key technology of USB Digital Broadcasting Receiver Card, which are the PID filter implementation, data transfer through USB, firmware programming and FPGA+USB hardware system architecture are introduced explicitly.Based on the FPGA+USB hardware system architecture, the overall design scheme of USB Digital Broadcasting Receiver Card will be put forward. The hardware design are mainly concerned. After the design and implementation of FPGA part are discussed in details.The system at last meets requirment, can work constantly and stably at 7Mbps rate, After our hard work and practice, the system hardware, driver program and application program cooperates perfectally to transfer valid data, we succeed in system debugging at Dongtai Information Ltd. Co. Wuhan.