To meet the needs of various consumers and reuse of digital broadcasting programs, it is necessary to re-transmit the digital broadcasting program produced by a variety of digital broadcasting standards over the different digital broadcasting systems. Especially, some channels in digital terrestrial broadcasting must be re-transmitted through the digital cable broadcasting in Korean digital broadcasting environment. In this paper, we present two possible methods for re-transmission from the digital terrestrial broadcasting to digital cable broadcasting, and propose a realtime re-transmission system.
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