This paper introduces the conception of measurement of analog cable television and digital ca- ble television and makes comparison between them.

This paper introduced settlement of the user terminals when the digital TV and the analog TV are broadcasted through the network.

4 billion, the context of the largest population and the imbalance of economic development means it is a long process for Digital TV totally replacing Analog TV.

Based on the analyzing of the features of analog TV′s and digital TV′s signal,this paper presents a debugging method with common testing instrument in the analog-to-digital hybrid cable transmission system.

The paper briefly introduces the designing of typical structure of HFC networks and its problem that should be paid attention, and expounds that the horizontal shift from the simulated television to the digital television has basic requirement to the reform of wired networks.

This paper kames brief analysis on the differences between digital television and analog television, expounds the developing situation of digital television in the world, and makes more detailed introduction of the developing process and trial broadcasting situation of Chinese digital television, the production of digital television programmes, and the selection of receiving equipment.

Design and Realization of CATV Bank Account System Based on Winsock;

A design of processing CATV s audio accompanying sound system;

Scrambling and descrambling of CATV;