Abstract: An improved high boost circuit for a reproduced frequency modulated video signal is disclosed, wherein the third harmonic components of the reproduced f.m. video signal is suppressed, so that the undesired so-called over-modulating effect causing signal inversion is avoided at the boundary of different video signal levels.

Abstract: Apparatus is provided for recovering, from a composite video signal which is reproduced from successive record tracks on a record medium, a frequency-converted chrominance component that is substantially free of cross-talk components. The frequency-converted chrominance components which are recorded in adjacent tracks have chrominance carriers which exhibit a frequency interleaved relationship with respect to each other. During reproduction, at least the frequency-converted chrominance component, together with an accompanying cross-talk component, is reproduced from the respective tracks. A cross-talk separating circuit, including a comb filter, is supplied with the reproduced chrominance component and separates the cross-talk component therefrom. A combining circuit functions to combine the separated cross-talk component and the reproduced frequency-converted chrominance component to produce a frequency-converted chrominance component that is substantially free of cross-talk components.

Abstract: A high frequency band signal is separated from a demodulated video signal and then is supplied to a noise clipping circuit in which black peak portions of the signal exceeding a predetermined black signal level are clipped.The resulting clipped output is combined with a low frequency band signal also separated from the demodulated video signal by which a negative going overshoot noise caused at the beginning of the horizontal blanking period is eliminated, and accordingly the signal to the noise ratio is improved and disturbance of synchronization is avoided.