It is possible to receive digital terrestrial television (DTT) with certain mobile devices. Thanks to the Android Television Box, a series of channels and services specially designed for mobile programs.
The television box may also offer a range of radios as well as complementary services (without direct interaction due to the standard operated), but this is rare: the available resource is limited, it is often used exclusively for television.
Standards
The standards used for the box in the world are many. The main standards are 1seg, used in Japan, T-DMB, operated in Korea and DVB-H and DVB-SH in Europe in 2008.
Future iMB technology is envisaged for the dissemination of the mobile phone frequencies, frequencies for which the mobile operators already licensed.
Competition and differences with the 3G reception
It is also possible to receive satellite internet network using the 3G and in some countries, access to broadband internet wireless technology Wimax.
A TMP receiver uses no return path to select channels. TMP unconnected receivers can be interactive as opposed to 3G terminals, except TV equipment nomadic TMP or Wifi or laptops WIFI or Ethernet equipped with a feature of receipt of the TMP. The number of television box receivers operating on the same coverage is not limited but the number of 3G mobile it is limited by the available bandwidth of the 3G network. The number of services (TV, radio or data) is fixed by a technical optimization and associated regulations.
Each Android Television Box standard can use a display variant consistent with historical analog video standards, the 50 Hz (according to 25 fps PAL or SECAM) and 60 Hz (according to 30 frames per second NTSC).
There is a trend linked to two main standards: Definition 1080 lines of interlaced display 1920 points (1080i) and definition 720 lines of 1280 points in progressive display (720p).
In the early years of this century there have been two formats of audio (no sound for television and film, but only audio) which are labeled as high-definition formats. They are DVD Audio and SACD.
In addition to a frequency response of 96 kHz and a signal to noise ratio of 144 dB peaks throughout the frequency band.
In the case of SACD (Super Audio CD), it comes with a sampling frequency of 2.8 Mhz but only one bit, resulting in a frequency response of 100 kHz, with a signal to noise ratio of 120 dB up to 20 kHz.
