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TV box is a set-top box that transforms digital

by:YoukingTech     2021-07-09

The TV box usually comprises of a tuner that at one end connects to the TV and at the other end to an external source by coaxial wires. It also has a connection with phone line.

The working of a cable case is simple. When the cable companies receive signals from their network, they pass them on to the center where they are processed and broken into programming channels. These channels forward video signals in compressed form that pass through the coaxial cable. Through the cable, the compressed video signals reach the box. When the viewer switches a channel, the video signals passing through the box are decoded according to the channel called up and then the compressed video is decompressed and shown on screen. As the viewer changes channel, the signals are again decoded and decompressed.

Apart from the coaxial cables, the TV box is also connected to a phone line which helps in communication between the case and the cable company. When the viewer wants new channels, a signal is sent to the cable operator through the phone line and in return a signal is sent to the case to view the desired channel. The same happens when a viewer demands a movie, a signal moves via phone to the cable company and another signal comes from the company to the box and the movie is watched.

A D/A converter has a number of useful features to offer. It comes with parental locks which prove helpful to lock some selected channels. It also has controls which can be used in case the TV remote or its batteries are out of order. It has such remotes that work with most televisions and with the all-in-one remote you can switch the TV on or off, search between analog and digital programming and tune to different channels. Nowadays, set-top boxes with sleep mode are being used. These boxes help save energy as the box is turned off when not in use. Timer is another feature offered by TV box. Timers can be used both for viewing and recording. This device can also work with display devices other than TV. It comes with the favorite channel option which enables the viewer to directly view their desired channel without searching long for it. The TV set-top case helps running satellite televisions as well. Electronic program guides make the case more useful. This guide keeps the users updated on the current programs as well as the forthcoming ones. Some set-top boxes also offer to catch up with the programs missed before. They also improve the quality of source signal received.

A TV box is a device that is simple in working and composition and can even be made at home. Its features make it more convenient to use.

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