Research Of Multimedia Communication System And Terminal Hardware System Design

In recent years, the multimedia communication system become an efficient, fast, convenient means of communication, widely used in video conference, video surveillance, videophone, distance education, telemedicine and so on. At present, the multimedia communication system is transition SD to HD, HD multimedia communication system is the main development direction. In the transition process, the research is also compatible with SD and HD multimedia communication system and has great significance, enables multimedia communication system more healthy and stable development. This issue is based on the concept of HD multimedia communication system to comply with the development of the times, and is compatible with SD multimedia communication system to meet market demand.This issue mainly research multimedia communication system in different applications, to design the multimedia communication terminal hardware system. It mainly includes two parts:the core control part is used to control the operation of the system and the core data processing, using a new generation of TI’s Da Vinci processor TMS320DM6467; the audio and video processing part deal with video capture and CODEC processing, using TVP7002 and ADV7343 to achieve HD video signal processing, using TVP5147 and AIC32 to collect audio and video signal. The design process of this system including application, make terminal design scheme, select terminal core chip, use PADS2007 to design terminal schematic and draw PCB figure, formulate terminal hardware debugging scheme.Terminal hardware of the system has powerful HD video CODEC capabilities, better compatibility and practical application value to collect and transfer a signpost of SD and HD.