programme transmission
2.Taking use of the idea of dynamic programming,this paper solves the transmission problem of data route in the case of congestion, constructs a mathematical model for it and presents a computing and output programme for this model by means of VB.Thus,the critical problem is found in data transmission.
3.This paper discusses in detail the system structure of real?time communication, communication programme and its pivotal techniques (data structure, real?time simulation database, EMS memory database, coinstantaneous request of data transmission).
4.After briefly introducing the charaeteristics and performatce of Geodat 126, the paper fecuses its discussion on the use of Goodat and its data transmission, with IBM—PC. Finally, a communication programme is giver.
5.Thirdly, with the choice among the techniques used in up and down channel transmission, the specific applied method of the CBR (Constant Bit Rate) and VBR (Variety Bit Rate) in the HFC network by the ATM-based transmission are given, thus these services such as broadcast, multicast and order programme are achieved.
6.Increased competition led to increased programme output requirements and healthy competition for audiences, and this - perhaps more significant for the future of regional TV - created cells of production excellence, which had a dual function; ITV got its programmes for regional and national transmission, but, such was their quality and expertise/specialisation, they also became marketable overseas….[I shall refer to this later.


