Abstract
This system is simplified and interactive home-network system used to transmit the NTSC video and audio signal, which is generated from a digital broadcasting receiver, DVD players and so on, to distant place. And the way is that its signal is multiplexed in the frequency for the current broadcasting wave gotten from receiving antenna terminal, after it's changed to a television frequency band by television modulator and up-convertor. With this system, a family can share multimedia a pictures, soureces and others by easy operation.
