Digital Television

Preference for this technology because it offers huge advantages over analog Television, these are summarized as follows: to provide high spatial resolution, greater realism that can be seen in a larger screen is possible. Clear the way toward a more computerized society, since it allows the TV-PC convergence. The TV can support data from telecommunications services, supplying a large number of services. Better quality of image and sound. The signal is robust against interference, noise and multipath propagation.

It allows the simple reception at home and little expensive. The reception can be portable or in motion. Use of a smaller number of frequency because you can use SfN networks. It requires less transmission power. It increases the amount of programs with respect to current TV, favouring multiple programs and multimedia services in each radio channel. The multiplicity of audio channels makes it possible to obtain surround sound as used in cinemas and transmit different languages with the same program of video. (3)(7) The HDTV is the variant of Digital Television that more definition offers, for this reason inherits the DTV many of the advantages that it offers, in addition to promoting higher quality in terms of image and sound. RRESULTADOS.

REQUIREMENTS for the implementation of HDTV in the ICU carried cabos tests, the first requirement once to highlight is that the clients machines should have, at least 246 MB of RAM and a processor at 2.40 GHz. The bandwidth required to transmit high definition videos are usually larger than needed to transmit Television in any other legislation, to give an example: bandwidth to transmit HD video uncompressed in the 720 p format is near the 354 Mbps, and in format 1080i about 1.5 Gbps; These single applications are available for high speed Internet 2 networks. This video is typically compressed; in this thesis will opt to propose the H.264 codec based on an investigation that was carried out in a manner parallel to this, with subject: proposal of a compression standard for mounting of HDTV in the ICU.