Multi-function cable TV converter

摘要

The present invention provides an RF modulator for modulating an audio / video signal applied from an external input device into a radio frequency signal, a tuner for tuning an RF signal input from the RF modulator and the antenna for each channel, and a signal tuned from the tuner. By implementing an audio / video signal converter comprising an audio / video signal processor for detecting and separating the video and audio signals and an RF modulator for modulating the signal separated from the audio / video signal processor into an RF signal again. The audio / video signal randomly applied to the signal may be processed in the same manner as the RF transmission signal to display a visitor's confirmation image, a recorded image, and an audio signal on a television.