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ISDB-Tb is the short for International System for Digital Broadcast, Terrestrial, Brazilian version.
It is a Digital TV system based on Japanese ISDB-T (Integrated System for Digital Broadcast, Terrestrial). ISDB-Tb system is also known as SBTVD (Sistema Brasileiro de Televisão Digital - Brazilian System for Digital Television in English) and is used in Brazil. Argentina, Chile and Peru have decided to adopt ISDB-Tb. Other South American countries like Ecuador and Venezuela are analyzing how ISDB-Tb evolves in Brazil to make their final decision about digital TV standard.
ISDB-Tb was developed by a Work Group composed by members of Brazilian Ministry of Communications, National Agency for Telecommunications (ANATEL), Brazilian Institute for Information Technology (ITI), Technology Development and Research Center (CPqD), several Brazilian Universities, R&D institutes, Organizations related to the matter (broadcast professionals association, broadcast companies association, etc) and electro-electronics manufacturers.
Basically ISDB-Tb differs from original Japanese ISDB-T by using MPEG-4 (H.264) as video compression system and a middleware called "Ginga" composed by procedural (Ginga-J - Java portion) and declarative (Ginga-NCL - NCL/LUA portion) modules that allow more complex interactive TV programs.
Implementation of ISDB-Tb (SBTVD) is being very successful and in 16 months has implemented digital transmission in 50% of Brazilian territory.
See also
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