double deck VCR dubbing circuit of video signal

摘要

according to the invention of the double deck of the VCR video signal dubbing from a deck of playing video signal. the other one was recorded on the tape, so as to VCR double deck is a deck system for the control of the uc774ud504 / signal synthesis. a composite video signal, converted to another level, the input to the system, the other one is the input composite video signal is adjusted to control the gain of the color signal separated and, after recording on the tape, and a low pass filter bandpass filter for the luminance signal and color signal separation and tape recording to prevent the occurrence of noise in order to narrow the bandwidth of the filter is set in the command. for god and the signal distortion, expand the bandwidth. ink and color signal are fully separated.;this invention is to control the tape playback voice for god and the synthesis of the signal, as the video signal recording system to record the input, for god the command and the signal and then separated from the mixture, to prevent the occurrence of the interference, for god to control for low frequency there is good news), the signal of the phase error is prevention.