A DTV receiver is a set-top box that permits the reception of digital television. Its components are very similar to a desktop PC. The DTV receiver is a vital link in the chain of television system. The goal of a broadcasting system is to concentrate the hardware requirements at the source to simplify the receivers and makes it as inexpensive as possible.
It is usually connected to the TV set or incorporated in the TV set. The main features of a DTV receiver may be classified as follows:
- decodes the incoming digital signal;
- verifies access rights and security levels;
- displays cinema quality pictures on the TV set;
- outputs digital surround sound;
- processes and renders Internet and interactive TV services.