Abstract: A television signal processing system characterized in that a level of at least a portion of a blanking interval of a coded television signal is shifted towards a white level and falling of the level shifting interval is shaped into a smooth waveform.

Abstract: A television signal processing system characterized by coding operation which comprises inverting synchronizing signal components of a television signal with reference to a pedestal thereof, expanding the synchronizing signal components to such an extent that they do not exceed a peak value of a video signal component and reducing horizontal synchronizing signals so as to leave one per several lines.

Abstract: A PLL circuit which comprises a phase comparator, a voltage-controlled oscillator whose oscillation frequency is controlled by an output from the phase comparator, a flip-flop circuit adapted to be set by an input signal, and a counter circuit responsive to an output condition of the flip-flop circuit to count an output from the voltage-controlled oscillator. The flip-flop circuit is adapted to be reset by an output from the counter circuit, and the phase comparator is adapted to receive an output from the flip-flop circuit and the output from the voltage-controlled oscillator.