How to control Vishal's blue back signal recording

摘要

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method of controlling a Vishal blue back signal recording, in which an unnecessary blue back signal generated from an original program is recorded on a copying tape when a tape copy of a Vishal Vsial is performed,;In order to remedy such a conventional problem, the present invention includes a step of performing recording in a recording mode and checking whether a received input signal is a blue back signal (steps 101 to 103) (Steps 104 and 105) of stopping the recording and continuing the recording when a real signal is detected (step 104 or 105).;The present invention has the effect of preventing unnecessary signals from being recorded on the copy because the blue back screen signal is not recorded as a copy from the original program at the time of v.