A study of the multimedia data service using external devices synchronised with a tv program

Abstract

In this paper, we propapose a multimedia data service using e.xtet-na1 devices svnclironised with TV prngrams. Tlii.~ type of advanced multimedia data service is suitable ,fur digital television. which features more interactivitv and useroriented pre.ventafion than present data services. We focus on using a character robot a.p an e-xternal device. which behaws .qmchronising with the character appearing in the TV program Tu investigate the fL;u.sihility of tliir type of service. we developed a .sinidation cystem ba.sed on BML (broadcmt nmrkup language), which is an XML-based nn~lti~nedia-cnding scheme, and e.rhihited this .y.v.stem in NHK's Open House 2002 for inve.sfigating the reaction of the