A modular platform for tests with interactivity in the Brazilian digital TV. / Uma plataforma modular para testes com interatividade na TV digital brasileira.

AUTOR(ES)
DATA DE PUBLICAÇÃO

2008

RESUMO

We have watched the transition from analog TV to digital TV around the world in the last two decades, with the establishment of international systems, as ATSC, DVB and ISDB. At the end of 2007, the Brazilian Digital Television System (SBTVD) was released for commercial purposes in São Paulo City. SBTVD brings significant innovations, from which we emphasize interactivity, that is offered by some data transmission mechanisms. This work aims to investigate the current mechanisms for implementing the interactivity in the Brazilian Digital TV. In order to reach this aim, its proposed a modular platform for tests with interactivity in the Brazilian digital TV. The three modules of that platform are based on the three stages of the interactive TV System: transport stream generation containing an interactive application, treatment of the application in the receiver, and returning of users interaction through the interactivity channel. Experiments are released on the first module, considering the digital TV signals available in São Paulo in January, 2008. This work has two main conclusions: the result of these experiments and the initial propose of a platform for tests execution and evaluation which allow us to have a better understanding and a more efficient use of the interactive resources offered by SBTVD.

ASSUNTO(S)

digital tv canal de interatividade interactivity channel set-stop box datacasting datacasting tv digital tv interativa

ACESSO AO ARTIGO

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