VIR-Signal processing circuitry for video tape recorder

摘要: A VIR-signal processing circuitry for a VTR (video tape recorder) having comb filter obtaining correct operation of the VIR circuit incorporated in television receivers, comprises stopping means preventing VITS (vertical interval test signal) on 18th line from polluting VIRS reference signal), phase transfer transferring information transmitted to subcarrier after elimination crosstalks by integrating VIRS, an amplitude output signal said and replacing newly developed chrominance using means.