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Article | REF: TE5875 V1

Set Top Box

Author: Véronique KERGUELEN

Publication date: February 10, 2002

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2. Decoder

The decoder (figure 13 ), or Set Top Box, is made up of several components described below.

2.1 Tuner

The first step in watching a program is, of course, to recover the bitstream as it has been constructed, in order to obtain all the useful information. The antenna connected to the decoder sends it a modulated signal that also includes all the error correction data. The tuner (figure 14 ) has several options for retrieving the information it needs for tuning: either the on-board application...

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